Ticket #67: gui-i18n.patch

new file inaries/data/mods/public/globalscripts/l10n.js

@@ +1 @@
+var g_translations = [];
+var g_pluralTranslations = {};
+var g_translationsWithContext = {};
+var g_pluralTranslationsWithContext = {};
+
+
+// Translates the specified English message into the current language.
+//
+// This function relies on the g_translations cache when possible. You should use this function instead of
+// Engine.translate() whenever you can to minimize the number of C++ calls and string conversions involved.
+function translate(message)
+{
+    var translation = g_translations[message];
+    if (!translation)
+        return g_translations[message] = Engine.translate(message);
+    return translation;
+}
+
+
+// Translates the specified English message into the current language for the specified number.
+//
+// This function relies on the g_pluralTranslations cache when possible. You should use this function instead of
+// Engine.translatePlural() whenever you can to minimize the number of C++ calls and string conversions involved.
+function translatePlural(singularMessage, pluralMessage, number)
+{
+    var translation = g_pluralTranslations[singularMessage];
+    if (!translation)
+        g_pluralTranslations[singularMessage] = {};
+
+    var pluralTranslation = g_pluralTranslations[singularMessage][number];
+    if (!pluralTranslation)
+        return g_pluralTranslations[singularMessage][number] = Engine.translateWithContext(singularMessage, pluralMessage, number);
+
+    return pluralTranslation;
+}
+
+
+// Translates the specified English message into the current language for the specified context.
+//
+// This function relies on the g_translationsWithContext cache when possible. You should use this function instead of
+// Engine.translateWithContext() whenever you can to minimize the number of C++ calls and string conversions involved.
+function translateWithContext(context, message)
+{
+    var translationContext = g_translationsWithContext[context];
+    if (!translationContext)
+        g_translationsWithContext[context] = {}
+
+    var translationWithContext = g_translationsWithContext[context][message];
+    if (!translationWithContext)
+        return g_translationsWithContext[context][message] = Engine.translateWithContext(context, message);
+
+    return translationWithContext;
+}
+
+
+// Translates the specified English message into the current language for the specified context and number.
+//
+// This function relies on the g_pluralTranslationsWithContext cache when possible. You should use this function instead of
+// Engine.translateWithContext() whenever you can to minimize the number of C++ calls and string conversions involved.
+function translatePluralWithContext(context, singularMessage, pluralMessage, number)
+{
+    var translationContext = g_pluralTranslationsWithContext[context];
+    if (!translationContext)
+        g_pluralTranslationsWithContext[context] = {};
+
+    var translationWithContext = g_pluralTranslationsWithContext[context][singularMessage];
+    if (!translationWithContext)
+        g_pluralTranslationsWithContext[context][singularMessage] = {};
+
+    var pluralTranslationWithContext = g_pluralTranslationsWithContext[context][singularMessage][number];
+    if (!pluralTranslationWithContext)
+        return g_pluralTranslationsWithContext[context][message][number] = Engine.translateWithContext(context, singularMessage, pluralMessage, number);
+
+    return pluralTranslationWithContext;
+}
+
+
+// Translates any string value in the specified JavaScript object that is associated with a key included in
+// the specified keys array.
+function translateObjectKeys(object, keys) {
+    for (property in object)
+    {
+        if (keys.indexOf(property) > -1)
+        {
+            if (object[property] != "" && object[property] !== undefined)
+            {
+                object[property] = translate(object[property]);
+            }
+        }
+        else
+        {
+            // From http://stackoverflow.com/a/7390612/939364
+            var variableType = ({}).toString.call(object[property]).match(/\s([a-zA-Z]+)/)[1].toLowerCase();
+            if (variableType === "object" || variableType == "array")
+            {
+                translateObjectKeys(object[property], keys);
+            }
+        }
+    }
+}

new file inaries/data/mods/public/globalscripts/sprintf.js

@@ +1 @@
+/**
+sprintf() for JavaScript 0.7-beta1
+http://www.diveintojavascript.com/projects/javascript-sprintf
+
+Copyright (c) Alexandru Marasteanu <alexaholic [at) gmail (dot] com>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of sprintf() for JavaScript nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL Alexandru Marasteanu BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+Changelog:
+2010.09.06 - 0.7-beta1
+  - features: vsprintf, support for named placeholders
+  - enhancements: format cache, reduced global namespace pollution
+
+2010.05.22 - 0.6:
+ - reverted to 0.4 and fixed the bug regarding the sign of the number 0
+ Note:
+ Thanks to Raphael Pigulla <raph (at] n3rd [dot) org> (http://www.n3rd.org/)
+ who warned me about a bug in 0.5, I discovered that the last update was
+ a regress. I appologize for that.
+
+2010.05.09 - 0.5:
+ - bug fix: 0 is now preceeded with a + sign
+ - bug fix: the sign was not at the right position on padded results (Kamal Abdali)
+ - switched from GPL to BSD license
+
+2007.10.21 - 0.4:
+ - unit test and patch (David Baird)
+
+2007.09.17 - 0.3:
+ - bug fix: no longer throws exception on empty paramenters (Hans Pufal)
+
+2007.09.11 - 0.2:
+ - feature: added argument swapping
+
+2007.04.03 - 0.1:
+ - initial release
+**/
+
+var sprintf = (function() {
+    function get_type(variable) {
+        return Object.prototype.toString.call(variable).slice(8, -1).toLowerCase();
+    }
+    function str_repeat(input, multiplier) {
+        for (var output = []; multiplier > 0; output[--multiplier] = input) {/* do nothing */}
+        return output.join('');
+    }
+
+    var str_format = function() {
+        if (!str_format.cache.hasOwnProperty(arguments[0])) {
+            str_format.cache[arguments[0]] = str_format.parse(arguments[0]);
+        }
+        return str_format.format.call(null, str_format.cache[arguments[0]], arguments);
+    };
+
+    str_format.format = function(parse_tree, argv) {
+        var cursor = 1, tree_length = parse_tree.length, node_type = '', arg, output = [], i, k, match, pad, pad_character, pad_length;
+        for (i = 0; i < tree_length; i++) {
+            node_type = get_type(parse_tree[i]);
+            if (node_type === 'string') {
+                output.push(parse_tree[i]);
+            }
+            else if (node_type === 'array') {
+                match = parse_tree[i]; // convenience purposes only
+                if (match[2]) { // keyword argument
+                    arg = argv[cursor];
+                    for (k = 0; k < match[2].length; k++) {
+                        if (!arg.hasOwnProperty(match[2][k])) {
+                            throw(sprintf(Engine.translate('[sprintf] property "%s" does not exist'), match[2][k]));
+                        }
+                        arg = arg[match[2][k]];
+                    }
+                }
+                else if (match[1]) { // positional argument (explicit)
+                    arg = argv[match[1]];
+                }
+                else { // positional argument (implicit)
+                    arg = argv[cursor++];
+                }
+
+                if (/[^s]/.test(match[8]) && (get_type(arg) != 'number')) {
+                    throw(sprintf(Engine.translate('[sprintf] expecting number but found %s'), get_type(arg)));
+                }
+                switch (match[8]) {
+                    case 'b': arg = arg.toString(2); break;
+                    case 'c': arg = String.fromCharCode(arg); break;
+                    case 'd': arg = parseInt(arg, 10); break;
+                    case 'e': arg = match[7] ? arg.toExponential(match[7]) : arg.toExponential(); break;
+                    case 'f': arg = match[7] ? parseFloat(arg).toFixed(match[7]) : parseFloat(arg); break;
+                    case 'o': arg = arg.toString(8); break;
+                    case 's': arg = ((arg = String(arg)) && match[7] ? arg.substring(0, match[7]) : arg); break;
+                    case 'u': arg = Math.abs(arg); break;
+                    case 'x': arg = arg.toString(16); break;
+                    case 'X': arg = arg.toString(16).toUpperCase(); break;
+                }
+                arg = (/[def]/.test(match[8]) && match[3] && arg >= 0 ? '+'+ arg : arg);
+                pad_character = match[4] ? match[4] == '0' ? '0' : match[4].charAt(1) : ' ';
+                pad_length = match[6] - String(arg).length;
+                pad = match[6] ? str_repeat(pad_character, pad_length) : '';
+                output.push(match[5] ? arg + pad : pad + arg);
+            }
+        }
+        return output.join('');
+    };
+
+    str_format.cache = {};
+
+    str_format.parse = function(fmt) {
+        var _fmt = fmt, match = [], parse_tree = [], arg_names = 0;
+        while (_fmt) {
+            if ((match = /^[^\x25]+/.exec(_fmt)) !== null) {
+                parse_tree.push(match[0]);
+            }
+            else if ((match = /^\x25{2}/.exec(_fmt)) !== null) {
+                parse_tree.push('%');
+            }
+            else if ((match = /^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(_fmt)) !== null) {
+                if (match[2]) {
+                    arg_names |= 1;
+                    var field_list = [], replacement_field = match[2], field_match = [];
+                    if ((field_match = /^([a-z_][a-z_\d]*)/i.exec(replacement_field)) !== null) {
+                        field_list.push(field_match[1]);
+                        while ((replacement_field = replacement_field.substring(field_match[0].length)) !== '') {
+                            if ((field_match = /^\.([a-z_][a-z_\d]*)/i.exec(replacement_field)) !== null) {
+                                field_list.push(field_match[1]);
+                            }
+                            else if ((field_match = /^\[(\d+)\]/.exec(replacement_field)) !== null) {
+                                field_list.push(field_match[1]);
+                            }
+                            else {
+                                throw(Engine.translate('[sprintf] huh?'));
+                            }
+                        }
+                    }
+                    else {
+                        throw(Engine.translate('[sprintf] huh?'));
+                    }
+                    match[2] = field_list;
+                }
+                else {
+                    arg_names |= 2;
+                }
+                if (arg_names === 3) {
+                    throw(Engine.translate('[sprintf] mixing positional and named placeholders is not (yet) supported'));
+                }
+                parse_tree.push(match);
+            }
+            else {
+                throw(Engine.translate('[sprintf] huh?'));
+            }
+            _fmt = _fmt.substring(match[0].length);
+        }
+        return parse_tree;
+    };
+
+    return str_format;
+})();
+
+var vsprintf = function(fmt, argv) {
+    argv.unshift(fmt);
+    return sprintf.apply(null, argv);
+};

binaries/data/mods/public/gui/aiconfig/aiconfig.js

@@ -5 +5 @@
 {
     g_Callback = settings.callback;
 
+    translateObjectKeys(settings.ais, ["name", "description"]);
     g_AIs = [
-        {id: "", data: {name: "None", description: "AI will be disabled for this player."}}
+        {id: "", data: {name: translateWithContext("ai", "None"), description: translate("AI will be disabled for this player.")}}
     ].concat(settings.ais);
 
     var aiSelection = getGUIObjectByName("aiSelection");
-    aiSelection.list = [ ai.data.name for each (ai in g_AIs) ];
+    aiSelection.list = [ translate(ai.data.name) for each (ai in g_AIs) ];
 
     var selected = 0;
     for (var i = 0; i < g_AIs.length; ++i)
@@ -24 +25 @@
     aiSelection.selected = selected;
     
     var aiDiff = getGUIObjectByName("aiDifficulty");
-    aiDiff.list = [ "Sandbox", "Easy", "Medium", "Hard", "Very Hard" ];
+    aiDiff.list = [translate("Sandbox"), translate("Easy"), translate("Medium"), translate("Hard"), translate("Very Hard")];
     aiDiff.selected = settings.difficulty;
 }
 

binaries/data/mods/public/gui/aiconfig/aiconfig.xml

@@ -9 +9 @@
 
     <object type="image" style="StoneDialog" size="50%-200 40%-140 50%+200 40%+180">
 
-        <object style="TitleText" type="text" size="50%-128 -16 50%+128 16">AI Configuration</object>
+        <object style="TitleText" type="text" size="50%-128 -16 50%+128 16">
+            <translatableAttribute id="caption">AI Configuration</translatableAttribute>
+        </object>
 
         <object size="50%-128 30 50%+128 80">
             <object type="text" style="RightLabelText" size="-10 0 90 50%">
-                AI Player
+                <translatableAttribute id="caption">AI Player</translatableAttribute>
             </object>
 
             <object name="aiSelection" type="dropdown" style="StoneDropDown" size="50%-24 0 50%+136 28">
@@ -21 +23 @@
             </object>
 
             <object type="text" style="RightLabelText" size="-10 35 90 50%+35">
-                AI Difficulty
+                <translatableAttribute id="caption">AI Difficulty</translatableAttribute>
             </object>
             
             <object name="aiDifficulty" type="dropdown" style="StoneDropDown" size="50%-24 35 50%+136 63">
@@ -37 +39 @@
         </object>
 
         <object type="button" style="StoneButton" size="50%-144 100%-60 50%-16 100%-32">
-            OK
+            <translatableAttribute id="caption">OK</translatableAttribute>
             <action on="Press">returnAI();</action>
         </object>
 
         <object type="button" style="StoneButton" size="50%+16 100%-60 50%+144 100%-32">
-            Cancel
+            <translatableAttribute id="caption">Cancel</translatableAttribute>
             <action on="Press">Engine.PopGuiPage();</action>
         </object>
     </object>

binaries/data/mods/public/gui/civinfo/civinfo.js

@@ -82 +82 @@
     var civInfo = g_CivData[code];
     
     if(!civInfo)
-        error("Error loading civ data for \""+code+"\"");
+        error(sprintf(translateWithContext("civinfo", "Error loading civ data for \"%(code)s\""), { code: code }));
 
     // Update civ gameplay display
-    getGUIObjectByName("civGameplayHeading").caption = heading(civInfo.Name+" Gameplay", 16);
-
+    getGUIObjectByName("civGameplayHeading").caption = heading(sprintf(translateWithContext("civinfo", "%(civilization)s Gameplay"), { civilization: civInfo.Name }), 16);
 
     // Bonuses
-    var bonusCaption = heading("Civilization Bonus"+(civInfo.CivBonuses.length == 1 ? "" : "es"), 12) + '\n';
+    var bonusCaption = heading(translatePluralWithContext("civinfo", "Civilization Bonus", "Civilization Bonuses", civInfo.CivBonuses.length), 12) + '\n';
     
     for(var i = 0; i < civInfo.CivBonuses.length; ++i)
     {
@@ -97 +96 @@
                     + civInfo.CivBonuses[i].History + '" tooltip_style="civInfoTooltip"]\n     ' + civInfo.CivBonuses[i].Description + '\n[/color]';
     }
 
-    bonusCaption += heading("Team Bonus"+(civInfo.TeamBonuses.length == 1 ? "" : "es"), 12) + '\n';
+    bonusCaption += heading(translatePluralWithContext("civinfo", "Team Bonus", "Team Bonuses", civInfo.TeamBonuses.length), 12) + '\n';
     
     for(var i = 0; i < civInfo.TeamBonuses.length; ++i)
     {
@@ -109 +108 @@
 
 
     // Special techs / buildings
-    var techCaption = heading("Special Technologies", 12) + '\n';
+    var techCaption = heading(translate("Special Technologies"), 12) + '\n';
     
     for(var i = 0; i < civInfo.Factions.length; ++i)
     {
@@ -121 +120 @@
         }
     }
 
-    techCaption += heading("Special Building"+(civInfo.Structures.length == 1 ? "" : "s"), 12) + '\n';
+    techCaption += heading(translatePluralWithContext("civinfo", "Special Building", "Special Buildings", civInfo.Structures.length), 12) + '\n';
     
     for(var i = 0; i < civInfo.Structures.length; ++i)
     {
@@ -133 +132 @@
 
 
     // Heroes
-    var heroCaption = heading("Heroes", 12) + '\n';
+    var heroCaption = heading(translateWithContext("civinfo", "Heroes"), 12) + '\n';
     
     for(var i = 0; i < civInfo.Factions.length; ++i)
     {
@@ -150 +149 @@
 
 
     // Update civ history display
-    getGUIObjectByName("civHistoryHeading").caption = heading("History of the " + civInfo.Name, 16);
+    getGUIObjectByName("civHistoryHeading").caption = heading(sprintf(translateWithContext("civinfo", "History of the %(civilization)s"), { civilization: civInfo.Name }), 16);
     getGUIObjectByName("civHistoryText").caption = civInfo.History;
 }

binaries/data/mods/public/gui/civinfo/civinfo.xml

@@ -12 +12 @@
 
     <object type="image" style="StoneDialog" size="50%-466 50%-316 50%+466 50%+316">
 
-        <object style="TitleText" type="text" size="50%-128 -16 50%+128 16">Civilizations</object>
+        <object style="TitleText" type="text" size="50%-128 -16 50%+128 16">
+            <translatableAttribute id="caption">Civilizations</translatableAttribute>
+        </object>
 
         <!-- Civ selection -->
         <object size="25 10 100% 30">
@@ -23 +25 @@
                                 textcolor="white"
                 text_align="left"
                 size="50%-320 10 50%-96 48">
-                Civilization Selection
+                <translatableAttribute id="caption">Civilization Selection</translatableAttribute>
             </object>
 
             <object name="civSelection" type="dropdown" style="StoneDropDown" size="50%-96 10 50%+96 40">
@@ -112 +114 @@
             type="button"
             style="StoneButton"
             size="100%-164 100%-52 100%-24 100%-24"
-        >Close
+        >
+            <translatableAttribute id="caption">Close</translatableAttribute>
             <action on="Press">
                 <![CDATA[
                     Engine.PopGuiPage();
@@ -122 +125 @@
 
     </object>
 
-</objects>
- No newline at end of file
+</objects>

binaries/data/mods/public/gui/common/functions_civinfo.js

@@ -14 +14 @@
     for each (var filename in civFiles)
     {   // Parse data if valid file
         var data = parseJSONData(filename);
+        translateObjectKeys(data, ["Name", "Description", "History", "Special"]);
         civData[data.Code] = data;
     }
     
     return civData;
 }
 
-// ====================================================================
- No newline at end of file
+// ====================================================================

binaries/data/mods/public/gui/common/functions_global_object.js

@@ -29 +29 @@
 
 function updateFPS()
 {   
-    getGUIObjectByName("fpsCounter").caption = "FPS: " + getFPS();
+    getGUIObjectByName("fpsCounter").caption = sprintf(translate("FPS: %(fps)s"), { fps: getFPS() });
 }

binaries/data/mods/public/gui/common/functions_utility.js

@@ -60 +60 @@
 function parseJSONData(pathname)
 {
     var data = {};
-        
+
     var rawData = readFile(pathname);
     if (!rawData)
     {
-        error("Failed to read file: "+pathname);
+        error(sprintf(translate("Failed to read file: %(path)s"), { path: pathname }));
     }
     else
     {
@@ -73 +73 @@
             // TODO: Need more info from the parser on why it failed: line number, position, etc!
             data = JSON.parse(rawData);
             if (!data)
-                error("Failed to parse JSON data in: "+pathname+" (check for valid JSON data)");
-            
-            
+                error(sprintf(translate("Failed to parse JSON data in: %(path)s (check for valid JSON data)"), { path: pathname }));
+
+
         }
         catch(err)
         {
-            error(err.toString()+": parsing JSON data in "+pathname);
+            error(sprintf(translate("%(error)s: parsing JSON data in %(path)s"), { error: err.toString(), path: pathname }));
         }
     }
-    
+
     return data;
 }
 
@@ -141 +141 @@
     var path = "simulation/data/"+filename;
     var rawData = readFile(path);
     if (!rawData)
-        error("Failed to read file: "+path);
+        error(sprintf(translate("Failed to read file: %(path)s"), { path: path }));
 
     try
     {
@@ -152 +152 @@
     }
     catch(err)
     {
-        error(err.toString()+": parsing JSON data in "+path);
+        error(sprintf(translate("%(error)s: parsing JSON data in %(path)s"), { error: err.toString(), path: path }));
     }
 
     return undefined;
@@ -167 +167 @@
 
     var data = parseJSONFromDataFile("player_defaults.json");
     if (!data || !data.PlayerData)
-        error("Failed to parse player defaults in player_defaults.json (check for valid JSON data)");
+        error(translate("Failed to parse player defaults in player_defaults.json (check for valid JSON data)"));
     else
+    {
+        translateObjectKeys(data.PlayerData, ["Name"])
         defaults = data.PlayerData;
+    }
 
     return defaults;
 }
@@ -187 +190 @@
 
     var data = parseJSONFromDataFile("map_sizes.json");
     if (!data || !data.Sizes)
-        error("Failed to parse map sizes in map_sizes.json (check for valid JSON data)");
+        error(translate("Failed to parse map sizes in map_sizes.json (check for valid JSON data)"));
     else
     {
+        translateObjectKeys(data, ["Name", "LongName"]);
         for (var i = 0; i < data.Sizes.length; ++i)
         {
             sizes.names.push(data.Sizes[i].LongName);
@@ -216 +220 @@
 
     var data = parseJSONFromDataFile("game_speeds.json");
     if (!data || !data.Speeds)
-        error("Failed to parse game speeds in game_speeds.json (check for valid JSON data)");
+        error(translate("Failed to parse game speeds in game_speeds.json (check for valid JSON data)"));
     else
     {
+        translateObjectKeys(data, ["Name"]);
         for (var i = 0; i < data.Speeds.length; ++i)
         {
             gameSpeeds.names.push(data.Speeds[i].Name);
@@ -254 +259 @@
  */
 function timeToString(time)
 {
-    var hours   = Math.floor(time / 1000 / 60 / 60);
-    var minutes = Math.floor(time / 1000 / 60) % 60;
-    var seconds = Math.floor(time / 1000) % 60;
-    return hours + ':' + (minutes < 10 ? '0' + minutes : minutes) + ':' + (seconds < 10 ? '0' + seconds : seconds);
+    return Engine.formatMillisecondsIntoDateString(time, translate("HH:mm:ss"));
 }
 
 // ====================================================================
@@ -289 +291 @@
         result[j] = source[i];
     }
     return result;
-}
- No newline at end of file
+}

binaries/data/mods/public/gui/common/functions_utility_error.js

@@ -19 +19 @@
             width: 500,
             height: 200,
             message: '[font="serif-bold-18"]' + msg + '[/font]',
-            title: "Loading Aborted",
+            title: translate("Loading Aborted"),
             mode: 2
         });
     }

binaries/data/mods/public/gui/common/functions_utility_list.js

@@ -11 +11 @@
 function removeItem (objectName, pos)
 {
     if (getGUIObjectByName (objectName) == null)
-        Engine.Console_Write ("removeItem(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "removeItem()", object: objectName }));
 
     var list = getGUIObjectByName (objectName).list;
     var selected = getGUIObjectByName (objectName).selected;
@@ -41 +41 @@
 function addItem (objectName, pos, value)
 {
     if (getGUIObjectByName (objectName) == null)
-        Engine.Console_Write ("addItem(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "addItem()", object: objectName }));
 
     var list = getGUIObjectByName (objectName).list;
     var selected = getGUIObjectByName (objectName).selected;
@@ -66 +66 @@
 function pushItem (objectName, value)
 {
     if (getGUIObjectByName (objectName) == null)
-        Engine.Console_Write ("pushItem(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "pushItem()", object: objectName }));
 
     var list = getGUIObjectByName (objectName).list;
     list.push (value);
@@ -81 +81 @@
 function popItem (objectName)
 {
     if (getGUIObjectByName (objectName) == null)
-        Engine.Console_Write ("popItem(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "popItem()", object: objectName }));
 
     var selected = getGUIObjectByName (objectName).selected;
     removeItem(objectName, getNumItems(objectName)-1);
@@ -98 +98 @@
 function getNumItems (objectName)
 {
     if (getGUIObjectByName (objectName) == null)
-        Engine.Console_Write ("getNumItems(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "getNumItems()", object: objectName }));
 
     var list = getGUIObjectByName(objectName).list;
     return list.length;
@@ -110 +110 @@
 function getItemValue (objectName, pos)
 {
     if (getGUIObjectByName (objectName) == null)
-        Engine.Console_Write ("getItemValue(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "getItemValue()", object: objectName }));
 
     var list = getGUIObjectByName(objectName).list;
     return list[pos];
@@ -122 +122 @@
 function getCurrItemValue (objectName)
 {
     if (getGUIObjectByName (objectName) == null)
-        Engine.Console_Write ("getCurrItemValue(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "getCurrItemValue()", object: objectName }));
 
     if (getGUIObjectByName(objectName).selected == -1)
         return "";
@@ -137 +137 @@
 function setCurrItemValue (objectName, string)
 {
     if (getGUIObjectByName(objectName) == null) {
-        Engine.Console_Write ("setCurrItemValue(): " + objectName + " not found.");
+        Engine.Console_Write (sprintf(translate("%(functionName)s: %(object)s not found."), { functionName: "setCurrItemValue()", object: objectName }));
         return -1;
     }
 
@@ -157 +157 @@
     }
 
     // Return -2 if failed to find value in list.
-    Engine.Console_Write ("Requested string '" + string + "' not found in " + objectName + "'s list.");
+    Engine.Console_Write (sprintf(translate("Requested string '%(string)s' not found in %(object)s's list."), { string: string, object: objectName }));
     return -2;
 }
 

binaries/data/mods/public/gui/common/functions_utility_loadsave.js

@@ -3 +3 @@
     return b.metadata.time - a.metadata.time;
 }
 
-function twoDigits(n)
-{
-    return n < 10 ? "0" + n : n;
-}
-
 function generateLabel(metadata)
 {
-    var t = new Date(metadata.time*1000);
-
-    var date = t.getFullYear()+"-"+twoDigits(1+t.getMonth())+"-"+twoDigits(t.getDate());
-    var time = twoDigits(t.getHours())+":"+twoDigits(t.getMinutes())+":"+twoDigits(t.getSeconds());
-    return "["+date+" "+time+"] "+metadata.initAttributes.map+(metadata.description ? " - "+metadata.description : "");
+    var dateTimeString = Engine.formatMillisecondsIntoDateString(metadata.time, translate("yyyy-MM-dd HH:mm:ss"));
+    if (metadata.description)
+    {
+        return sprintf(translate("[%(date)s] %(map)s - %(description)s"), { date: dateTimeString, map: metadata.initAttributes.map, description: metadata.description });
+    }
+    else
+    {
+        return sprintf(translate("[%(date)s] %(map)s"), { date: dateTimeString, map: metadata.initAttributes.map });
+    }
 }

binaries/data/mods/public/gui/common/functions_utility_music.js

@@ -53 +53 @@
     var soundArray = buildDirEntList(randomSoundPath, "*" + soundSubType + "*", false);
     if (soundArray.length == 0)
     {
-        Engine.Console_Write ("Failed to find sounds matching '*"+soundSubType+"*'");
+        Engine.Console_Write (sprintf(translate("Failed to find sounds matching '*%(subtype)s*'"), { soundSubType: subtype }));
         return undefined;
     }
     // Get a random number within the sound's range.
@@ -75 +75 @@
             return new AmbientSound(randomSoundPath);
         break;
         case "effect":
-            Engine.Console_Write("am loading effect '*"+randomSoundPath+"*'");
+            Engine.Console_Write(sprintf(translate("am loading effect '*%(path)s*'"), { path: randomSoundPath }));
         break;
         default:
         break;

binaries/data/mods/public/gui/common/music.js

@@ -108 +108 @@
             break;
 
         default:
-            warn("Music.updateState(): Unknown music state: " + this.currentState);
+            warn(sprintf(translate("%(functionName)s: Unknown music state: %(state)s"), { functionName: "Music.updateState()", state: this.currentState }));
             break;
         }
     }
@@ -131 +131 @@
 
         if (type === undefined)
         {
-            warn("Music.storeTracks(): Unrecognized music type: " + music.Type);
+            warn(sprintf(translate("%(functionName)s: Unrecognized music type: %(musicType)s"), { functionName: "Music.storeTracks()", musicType: music.Type }));
             continue;
         }
 

binaries/data/mods/public/gui/common/network.js

@@ -3 +3 @@
     // Must be kept in sync with source/network/NetHost.h
     switch (id)
     {
-    case 0: return "Unknown reason";
-    case 1: return "Unexpected shutdown";
-    case 2: return "Incorrect network protocol version";
-    case 3: return "Game has already started";
-    default: return "[Invalid value "+id+"]";
+    case 0: return translate("Unknown reason");
+    case 1: return translate("Unexpected shutdown");
+    case 2: return translate("Incorrect network protocol version");
+    case 3: return translate("Game has already started");
+    default: return sprintf(translate("[Invalid value %(id)s]"), { id: id });
     }
 }
 
@@ -16 +16 @@
     var reasontext = getDisconnectReason(reason);
 
     messageBox(400, 200,
-        "Lost connection to the server.\n\nReason: " + reasontext + ".",
-        "Disconnected", 2);
+        translate("Lost connection to the server.") + "\n\n" + sprintf(translate("Reason: %(reason)s."), { reason: reasontext }),
+        translate("Disconnected"), 2);
 }

binaries/data/mods/public/gui/common/timer.js

@@ -45 +45 @@
             t[1]();
         } catch (e) {
             var stack = e.stack.trimRight().replace(/^/mg, '  '); // indent the stack trace
-            error("Error in timer: "+e+"\n"+stack+"\n");
+            error(sprintf(translate("Error in timer: %(error)s"), { error: e })+"\n"+stack+"\n");
         }
         delete g_Timers[id];
     }

binaries/data/mods/public/gui/gamesetup/gamesetup.js

@@ -4 +4 @@
 const DEFAULT_OFFLINE_MAP = "Acropolis 01";
 
 // TODO: Move these somewhere like simulation\data\game_types.json, Atlas needs them too
-const VICTORY_TEXT = ["Conquest", "None"];
+const VICTORY_TEXT = [translate("Conquest"), translateWithContext("victory", "None")];
 const VICTORY_DATA = ["conquest", "endless"];
 const VICTORY_DEFAULTIDX = 0;
-const POPULATION_CAP = ["50", "100", "150", "200", "250", "300", "Unlimited"];
+const POPULATION_CAP = ["50", "100", "150", "200", "250", "300", translate("Unlimited")];
 const POPULATION_CAP_DATA = [50, 100, 150, 200, 250, 300, 10000];
 const POPULATION_CAP_DEFAULTIDX = 5;
-const STARTING_RESOURCES = ["Very Low", "Low", "Medium", "High", "Very High", "Deathmatch"];
+const STARTING_RESOURCES = [translate("Very Low"), translate("Low"), translate("Medium"), translate("High"), translate("Very High"), translate("Deathmatch")];
 const STARTING_RESOURCES_DATA = [100, 300, 500, 1000, 3000, 50000];
 const STARTING_RESOURCES_DEFAULTIDX = 1;
 // Max number of players for any map
@@ -50 +50 @@
 var g_MapFilters = [];
 
 // Warn about the AI's nonexistent naval map support.
-var g_NavalWarning = "\n\n[font=\"serif-bold-12\"][color=\"orange\"]Warning:[/color][/font] \
-The AI does not support naval maps and may cause severe performance issues. \
-Naval maps are recommended to be played with human opponents only.";
+var g_NavalWarning = "\n\n" + sprintf(
+    translate("%(warning)s The AI does not support naval maps and may cause severe performance issues. Naval maps are recommended to be played with human opponents only."),
+    { warning: "[font=\"serif-bold-12\"][color=\"orange\"]" + translate("Warning:") + "[/color][/font]" }
+);
 
 // To prevent the display locking up while we load the map metadata,
 // we'll start with a 'loading' message and switch to the main screen in the
@@ -78 +79 @@
         g_IsController = false;
         break;
     default:
-        error("Unexpected 'type' in gamesetup init: "+attribs.type);
+        error(sprintf(translate("Unexpected 'type' in gamesetup init: %(unexpectedType)s"), { unexpectedType: attribs.type }));
     }
 }
 
@@ -107 +108 @@
 
     // Init map types
     var mapTypes = getGUIObjectByName("mapTypeSelection");
-    mapTypes.list = ["Scenario","Skirmish","Random"];
+    mapTypes.list = [translate("Scenario"), translateWithContext("map", "Skirmish"), translateWithContext("map", "Random")];
     mapTypes.list_data = ["scenario","skirmish","random"];
 
     // Setup map filters - will appear in order they are added
-    addFilter("Default", function(settings) { return settings && !keywordTestOR(settings.Keywords, ["naval", "demo", "hidden"]); });
-    addFilter("Naval Maps", function(settings) { return settings && keywordTestAND(settings.Keywords, ["naval"]); });
-    addFilter("Demo Maps", function(settings) { return settings && keywordTestAND(settings.Keywords, ["demo"]); });
-    addFilter("All Maps", function(settings) { return true; });
+    addFilter("default", translate("Default"), function(settings) { return settings && !keywordTestOR(settings.Keywords, ["naval", "demo", "hidden"]); });
+    addFilter("naval", translate("Naval Maps"), function(settings) { return settings && keywordTestAND(settings.Keywords, ["naval"]); });
+    addFilter("demo", translate("Demo Maps"), function(settings) { return settings && keywordTestAND(settings.Keywords, ["demo"]); });
+    addFilter("all", translate("All Maps"), function(settings) { return true; });
 
     // Populate map filters dropdown
     var mapFilters = getGUIObjectByName("mapFilterSelection");
-    mapFilters.list = getFilters();
-    g_GameAttributes.mapFilter = "Default";
+    mapFilters.list = getFilterNames();
+    mapFilters.list_data = getFilterIds();
+    g_GameAttributes.mapFilter = "default";
 
     // Setup controls for host only
     if (g_IsController)
@@ -287 +289 @@
 
         // Populate team dropdowns
         var team = getGUIObjectByName("playerTeam["+i+"]");
-        team.list = ["None", "1", "2", "3", "4"];
+        team.list = [translateWithContext("team", "None"), "1", "2", "3", "4"];
         team.list_data = [-1, 0, 1, 2, 3];
         team.selected = 0;
 
@@ -447 +449 @@
     var civListCodes = [ civ.code for each (civ in civList) ];
 
     //  Add random civ to beginning of list 
-    civListNames.unshift("[color=\"orange\"]Random"); 
+    civListNames.unshift("[color=\"orange\"]" + translateWithContext("civilization", "Random"));
     civListCodes.unshift("random"); 
 
     // Update the dropdowns
@@ -480 +482 @@
         break;
 
     default:
-        error("initMapNameList: Unexpected map type '"+g_GameAttributes.mapType+"'");
+        error(sprintf(translate("initMapNameList: Unexpected map type '%(mapType)s'"), { mapType: g_GameAttributes.mapType }));
         return;
     }
 
@@ -498 +500 @@
     // Alphabetically sort the list, ignoring case
     mapList.sort(sortNameIgnoreCase);
     if (g_GameAttributes.mapType == "random")
-        mapList.unshift({ "name": "[color=\"orange\"]Random[/color]", "file": "random" });
+        mapList.unshift({ "name": "[color=\"orange\"]" + translateWithContext("map", "Random") + "[/color]", "file": "random" });
 
     var mapListNames = [ map.name for each (map in mapList) ];
     var mapListFiles = [ map.file for each (map in mapList) ];
@@ -529 +531 @@
         case "scenario":
         case "skirmish":
             g_MapData[name] = Engine.LoadMapSettings(name);
+            translateObjectKeys(g_MapData[name], ["Name", "Description"]);
             break;
 
         case "random":
             if (name == "random")
-                g_MapData[name] = {settings : {"Name" : "Random", "Description" : "Randomly selects a map from the list"}};
+                g_MapData[name] = { settings: { "Name": translateWithContext("map", "Random"), "Description": translate("Randomly selects a map from the list") } };
             else
+            {
                 g_MapData[name] = parseJSONData(name+".json");
+                translateObjectKeys(g_MapData[name], ["Name", "Description"]);
+            }
             break;
 
         default:
-            error("loadMapData: Unexpected map type '"+g_GameAttributes.mapType+"'");
+            error(sprintf(translate("loadMapData: Unexpected map type '%(mapType)s'"), { mapType: g_GameAttributes.mapType }));
             return undefined;
         }
     }
@@ -620 +626 @@
             if (g_IsNetworked)
                 Engine.AssignNetworkPlayer(player, "");
             else
-                g_PlayerAssignments = { "local": { "name": "You", "player": 1, "civ": "", "team": -1} };
+                g_PlayerAssignments = { "local": { "name": translate("You"), "player": 1, "civ": "", "team": -1} };
         }
     }
 
@@ -674 +680 @@
         break;
 
     default:
-        error("selectMapType: Unexpected map type '"+g_GameAttributes.mapType+"'");
+        error(sprintf(translate("selectMapType: Unexpected map type '%(mapType)s'"), { mapType: g_GameAttributes.mapType }));
         return;
     }
 
@@ -683 +689 @@
     updateGameAttributes();
 }
 
-function selectMapFilter(filterName)
+function selectMapFilter(id)
 {
     // Avoid recursion
     if (g_IsInGuiUpdate)
@@ -693 +699 @@
     if (g_IsNetworked && !g_IsController)
         return;
 
-    g_GameAttributes.mapFilter = filterName;
+    g_GameAttributes.mapFilter = id;
 
     initMapNameList();
 
@@ -721 +727 @@
     // Copy any new settings
     g_GameAttributes.map = name;
     g_GameAttributes.script = mapSettings.Script;
-    if (mapData !== "Random")
+    if (g_GameAttributes.map !== "random")
         for (var prop in mapSettings)
             g_GameAttributes.settings[prop] = mapSettings[prop];
 
@@ -737 +743 @@
     // Reset player assignments on map change
     if (!g_IsNetworked)
     {   // Slot 1
-        g_PlayerAssignments = { "local": { "name": "You", "player": 1, "civ": "", "team": -1} };
+        g_PlayerAssignments = { "local": { "name": translate("You"), "player": 1, "civ": "", "team": -1} };
     }
     else
     {
@@ -759 +765 @@
 {
     if (g_IsNetworked && !g_IsController)
     {
-        error("Only host can start game");
+        error(translate("Only host can start game"));
         return;
     }
 
@@ -812 +818 @@
                     usedName++;
             
             // Assign civ specific names to AI players
+            chosenName = translate(chosenName);
             if (usedName)
-                g_GameAttributes.settings.PlayerData[i].Name = chosenName + " " + romanNumbers[usedName+1];
+                g_GameAttributes.settings.PlayerData[i].Name = sprintf(translate("%(playerName)s %(romanNumber)s"), { playerName: chosenName, romanNumber: romanNumbers[usedName+1]});
             else
                 g_GameAttributes.settings.PlayerData[i].Name = chosenName;
         }
@@ -862 +869 @@
     // Update some controls for clients
     if (!g_IsController)
     {
-        getGUIObjectByName("mapFilterText").caption = g_GameAttributes.mapFilter;
+        var mapFilderSelection = getGUIObjectByName("mapFilterText");
+        var mapFilterId = mapFilderSelection.list_data.indexOf(g_GameAttributes.mapFilter);
+        getGUIObjectByName("mapFilterText").caption = mapFilderSelection.list[mapFilterId];
         var mapTypeSelection = getGUIObjectByName("mapTypeSelection");
         var idx = mapTypeSelection.list_data.indexOf(g_GameAttributes.mapType);
         getGUIObjectByName("mapTypeText").caption = mapTypeSelection.list[idx];
@@ -900 +909 @@
     var speedIdx = (g_GameAttributes.gameSpeed !== undefined && g_GameSpeeds.speeds.indexOf(g_GameAttributes.gameSpeed) != -1) ? g_GameSpeeds.speeds.indexOf(g_GameAttributes.gameSpeed) : g_GameSpeeds["default"];
     var victoryIdx = (VICTORY_DATA.indexOf(mapSettings.GameType) != -1 ? VICTORY_DATA.indexOf(mapSettings.GameType) : VICTORY_DEFAULTIDX);
     enableCheats.checked = (g_GameAttributes.settings.CheatsEnabled === undefined || !g_GameAttributes.settings.CheatsEnabled ? false : true)
-    enableCheatsText.caption = (enableCheats.checked ? "Yes" : "No");
+    enableCheatsText.caption = (enableCheats.checked ? translate("Yes") : translate("No"));
     gameSpeedText.caption = g_GameSpeeds.names[speedIdx];
     populationCap.selected = (POPULATION_CAP_DATA.indexOf(mapSettings.PopulationCap) != -1 ? POPULATION_CAP_DATA.indexOf(mapSettings.PopulationCap) : POPULATION_CAP_DEFAULTIDX);
     populationCapText.caption = POPULATION_CAP[populationCap.selected];
@@ -934 +943 @@
             populationCapText.hidden = true;
             startingResourcesText.hidden = true;
             
-            mapSizeText.caption = "Map size:";
+            mapSizeText.caption = translate("Map size:");
             mapSize.selected = sizeIdx;
-            revealMapText.caption = "Reveal map:";
+            revealMapText.caption = translate("Reveal map:");
             revealMap.checked = (mapSettings.RevealMap ? true : false);
 
-            victoryConditionText.caption = "Victory condition:";
+            victoryConditionText.caption = translate("Victory condition:");
             victoryCondition.selected = victoryIdx;
-            lockTeamsText.caption = "Teams locked:";
+            lockTeamsText.caption = translate("Teams locked:");
             lockTeams.checked = (mapSettings.LockTeams ? true : false);
         }
         else
@@ -959 +968 @@
 
             numPlayersText.caption = numPlayers;
             mapSizeText.caption = g_MapSizes.names[sizeIdx];
-            revealMapText.caption = (mapSettings.RevealMap ? "Yes" : "No");
+            revealMapText.caption = (mapSettings.RevealMap ? translate("Yes") : translate("No"));
             victoryConditionText.caption = VICTORY_TEXT[victoryIdx];
-            lockTeamsText.caption = (mapSettings.LockTeams ? "Yes" : "No");
+            lockTeamsText.caption = (mapSettings.LockTeams ? translate("Yes") : translate("No"));
         }
 
         break;
@@ -1035 +1044 @@
         startingResourcesText.hidden = false;
 
         numPlayersText.caption = numPlayers;
-        mapSizeText.caption = "Default";
-        revealMapText.caption = (mapSettings.RevealMap ? "Yes" : "No");
+        mapSizeText.caption = translate("Default");
+        revealMapText.caption = (mapSettings.RevealMap ? translate("Yes") : translate("No"));
         victoryConditionText.caption = VICTORY_TEXT[victoryIdx];
-        lockTeamsText.caption = (mapSettings.LockTeams ? "Yes" : "No");
+        lockTeamsText.caption = (mapSettings.LockTeams ? translate("Yes") : translate("No"));
         getGUIObjectByName("populationCap").selected = POPULATION_CAP_DEFAULTIDX;
 
         break;
 
     default:
-        error("onGameAttributesChange: Unexpected map type '"+g_GameAttributes.mapType+"'");
+        error(sprintf(translate("onGameAttributesChange: Unexpected map type '%(mapType)s'"), { mapType: g_GameAttributes.mapType }));
         return;
     }
 
@@ -1052 +1061 @@
     getGUIObjectByName("mapInfoName").caption = getMapDisplayName(mapName);
     
     // Load the description from the map file, if there is one
-    var description = mapSettings.Description || "Sorry, no description available.";
+    var description = mapSettings.Description || translate("Sorry, no description available.");
 
-    if (g_GameAttributes.mapFilter == "Naval Maps")
+    if (g_GameAttributes.mapFilter == "naval")
         description += g_NavalWarning;
 
     // Describe the number of players
-    var playerString = numPlayers + " " + (numPlayers == 1 ? "player" : "players") + ". ";
+    var playerString = sprintf(translatePlural("%(number)s player. %(description)s", "%(number)s players. %(description)s", numPlayers), { number: numPlayers, description: description });
 
     for (var i = 0; i < MAX_PLAYERS; ++i)
     {
@@ -1097 +1106 @@
             pTeam.hidden = true;
             // Set text values
             if (civ == "random")
-                pCivText.caption = "[color=\"orange\"]Random";
+                pCivText.caption = "[color=\"orange\"]" + translateWithContext("civilization", "Random");
             else
                 pCivText.caption = g_CivData[civ].Name;
             pTeamText.caption = (team !== undefined && team >= 0) ? team+1 : "-";
@@ -1114 +1123 @@
         }
     }
 
-    getGUIObjectByName("mapInfoDescription").caption = playerString + description;
+    getGUIObjectByName("mapInfoDescription").caption = playerString;
 
     g_IsInGuiUpdate = false;
 
@@ -1178 +1187 @@
         }
         // Give AI a different color so it stands out
         aiAssignments[ai.id] = hostNameList.length;
-        hostNameList.push("[color=\"70 150 70 255\"]AI: " + ai.data.name);
+        hostNameList.push("[color=\"70 150 70 255\"]" + sprintf(translate("AI: %(ai)s"), { ai: translate(ai.data.name) }));
         hostGuidList.push("ai:" + ai.id);
     }
 
     noAssignment = hostNameList.length;
-    hostNameList.push("[color=\"140 140 140 255\"]Unassigned");
+    hostNameList.push("[color=\"140 140 140 255\"]" + translate("Unassigned"));
     hostGuidList.push("");
 
     for (var i = 0; i < MAX_PLAYERS; ++i)
@@ -1210 +1219 @@
                 if (aiId in aiAssignments)
                     selection = aiAssignments[aiId];
                 else
-                    warn("AI \""+aiId+"\" not present. Defaulting to unassigned.");
+                    warn(sprintf(translate("AI \"%(id)s\" not present. Defaulting to unassigned."), { id: aiId }));
             }
 
             if (!selection)
@@ -1385 +1394 @@
     switch (msg.type)
     {
     case "connect":
-        formatted = '[font="serif-bold-13"][color="'+ color +'"]' + username + '[/color][/font] [color="gold"]has joined[/color]';
+        var formattedUsername = '[font="serif-bold-13"][color="'+ color +'"]' + username + '[/color][/font][color="gold"]'
+        formatted = '[color="gold"]' + sprintf(translate("%(username)s has joined"), { username: formattedUsername });
         break;
 
     case "disconnect":
-        formatted = '[font="serif-bold-13"][color="'+ color +'"]' + username + '[/color][/font] [color="gold"]has left[/color]';
+        var formattedUsername = '[font="serif-bold-13"][color="'+ color +'"]' + username + '[/color][/font][color="gold"]'
+        formatted = '[color="gold"]' + sprintf(translate("%(username)s has left"), { username: formattedUsername });
         break;
 
     case "message":
-        formatted = '[font="serif-bold-13"]<[color="'+ color +'"]' + username + '[/color]>[/font] ' + message;
+        var formattedUsername = '[color="'+ color +'"]' + username + '[/color]'
+        var formattedUsernamePrefix = '[font="serif-bold-13"]' + sprintf(translate("<%(username)s>"), { username: formattedUsername }) + '[/font]'
+        formatted = sprintf(translate("%(username)s %(message)s"), { username: formattedUsernamePrefix, message: message });
         break;
 
     default:
-        error("Invalid chat message '" + uneval(msg) + "'");
+        error(sprintf(translate("Invalid chat message '%(message)s'"), { message: uneval(msg) }));
         return;
     }
 
@@ -1415 +1428 @@
 // Basic map filters API
 
 // Add a new map list filter
-function addFilter(name, filterFunc)
+function addFilter(id, name, filterFunc)
 {
     if (filterFunc instanceof Object)
     {   // Basic validity test
         var newFilter = {};
+        newFilter.id = id;
         newFilter.name = name;
         newFilter.filter = filterFunc;
 
@@ -1427 +1441 @@
     }
     else
     {
-        error("Invalid map filter: "+name);
+        error(sprintf(translate("Invalid map filter: %(name)s"), { name: name }));
     }
 }
 
+// Get array of map filter IDs
+function getFilterIds()
+{
+    var filters = [];
+    for (var i = 0; i < g_MapFilters.length; ++i)
+        filters.push(g_MapFilters[i].id);
+
+    return filters;
+}
+
 // Get array of map filter names
-function getFilters()
+function getFilterNames()
 {
     var filters = [];
     for (var i = 0; i < g_MapFilters.length; ++i)
@@ -1442 +1466 @@
 }
 
 // Test map filter on given map settings object
-function testFilter(name, mapSettings)
+function testFilter(id, mapSettings)
 {
     for (var i = 0; i < g_MapFilters.length; ++i)
-        if (g_MapFilters[i].name == name)
+        if (g_MapFilters[i].id == id)
             return g_MapFilters[i].filter(mapSettings);
 
-    error("Invalid map filter: "+name);
+    error(sprintf(translate("Invalid map filter: %(id)s"), { id: id }));
     return false;
 }
 

binaries/data/mods/public/gui/gamesetup/gamesetup.xml

@@ -12 +12 @@
     <object type="image" style="StoneWindow" size="0 0 100% 100%">
 
         <object style="TitleText" type="text" size="50%-128 4 50%+128 36">
-            Match Setup
+            <translatableAttribute id="caption">Match Setup</translatableAttribute>
         </object>
     
         <object type="image" style="StoneDialog" size="50%-190 50%-80 50%+190 50%+80" name="loadingWindow">
 
             <object type="text" style="TitleText" size="50%-128 0%-16 50%+128 16">
-                Loading
+                <translatableAttribute id="caption">Loading</translatableAttribute>
             </object>
 
             <object type="text" style="CenteredLabelText">
-                Loading map data. Please wait...
+                <translatableAttribute id="caption">Loading map data. Please wait...</translatableAttribute>
             </object>
 
         </object>
@@ -38 +38 @@
 
                 <!-- Number of Players-->
                 <object size="0 0 150 28">
-                    <object size="0 0 100% 100%" type="text" style="RightLabelText">Number of players:</object>
+                    <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                        <translatableAttribute id="caption">Number of players:</translatableAttribute>
+                    </object>
                 </object>
                     
                 <!-- Number of Players-->
@@ -48 +50 @@
                             type="dropdown"
                             style="StoneDropDown"
                             size="0 0 100% 28"
-                            tooltip_style="onscreenToolTip"
-                            tooltip="Select number of players.">
+                            tooltip_style="onscreenToolTip">
+                        <translatableAttribute id="tooltip">Select number of players.</translatableAttribute>
                         <action on="SelectionChange">selectNumPlayers(this.list_data[this.selected]);</action>
                     </object>
                 </object>
@@ -59 +61 @@
             <!-- Player assignments -->
             <object size="24 59 100%-440 358" type="image" sprite="BackgroundIndentFillDark" name="playerAssignmentsPannel">
                 <object size="0 6 100% 30">
-                    <object name="playerNameHeading" type="text" style="CenteredLabelText" size="0 0 25% 100%">Player Name</object>
-                    <object name="playerPlacementHeading" type="text" style="CenteredLabelText" size="25%+5 0 55% 100%">Player Placement</object>
-                    <object name="playerCivHeading" type="text" style="CenteredLabelText" size="55%+65 0 85% 100%">Civilization</object>
+                    <object name="playerNameHeading" type="text" style="CenteredLabelText" size="0 0 25% 100%">
+                        <translatableAttribute id="caption">Player Name</translatableAttribute>
+                    </object>
+                    <object name="playerPlacementHeading" type="text" style="CenteredLabelText" size="25%+5 0 55% 100%">
+                        <translatableAttribute id="caption">Player Placement</translatableAttribute>
+                    </object>
+                    <object name="playerCivHeading" type="text" style="CenteredLabelText" size="55%+65 0 85% 100%">
+                        <translatableAttribute id="caption">Civilization</translatableAttribute>
+                    </object>
                     <object name="civInfoButton"
                         type="button"
                         sprite="iconInfoGold"
                         sprite_over="iconInfoWhite"
                         size="85%-8 0 85%+8 16"
                         tooltip_style="onscreenToolTip"
-                        tooltip="View civilization info"
                     >
+                        <translatableAttribute id="tooltip">View civilization info</translatableAttribute>
                         <action on="Press"><![CDATA[
                             Engine.PushGuiPage("page_civinfo.xml");
                         ]]></action>
                     </object>
-                    <object name="playerTeamHeading" type="text" style="CenteredLabelText" size="85%+5 0 100%-5 100%">Team</object>
+                    <object name="playerTeamHeading" type="text" style="CenteredLabelText" size="85%+5 0 100%-5 100%">
+                        <translatableAttribute id="caption">Team</translatableAttribute>
+                    </object>
                 </object>
                 <object size="1 36 100%-1 100%">
                     <repeat count="8">
                         <object name="playerBox[n]" size="0 0 100% 32" hidden="true">
                             <object name="playerColour[n]" type="image" size="0 0 100% 100%"/>
                             <object name="playerName[n]" type="text" style="CenteredLabelText" size="0 2 25% 30"/>
-                            <object name="playerAssignment[n]" type="dropdown" style="StoneDropDown" size="25%+5 2 55% 30" tooltip_style="onscreenToolTip" tooltip="Select player."/>
+                            <object name="playerAssignment[n]" type="dropdown" style="StoneDropDown" size="25%+5 2 55% 30" tooltip_style="onscreenToolTip">
+                                <translatableAttribute id="tooltip">Select player.</translatableAttribute>
+                            </object>
                             <object name="playerConfig[n]" type="button" style="StoneButton" size="55%+5 6 55%+60 26"
                                 tooltip_style="onscreenToolTip"
-                                tooltip="Configure AI settings."
                                 font="serif-bold-stroke-12"
-                            >Settings</object>
-                            <object name="playerCiv[n]" type="dropdown" style="StoneDropDown" size="55%+65 2 85% 30" tooltip_style="onscreenToolTip" tooltip="Select player's civilization."/>
+                            >
+                                <translatableAttribute id="caption">Settings</translatableAttribute>
+                                <translatableAttribute id="tooltip">Configure AI settings.</translatableAttribute>
+                            </object>
+                            <object name="playerCiv[n]" type="dropdown" style="StoneDropDown" size="55%+65 2 85% 30" tooltip_style="onscreenToolTip">
+                                <translatableAttribute id="tooltip">Select player's civilization.</translatableAttribute>
+                            </object>
                             <object name="playerCivText[n]" type="text" style="CenteredLabelText" size="55%+65 0 85% 30"/>
-                            <object name="playerTeam[n]" type="dropdown" style="StoneDropDown" size="85%+5 2 100%-5 30" tooltip_style="onscreenToolTip" tooltip="Select player's team."/>
+                            <object name="playerTeam[n]" type="dropdown" style="StoneDropDown" size="85%+5 2 100%-5 30" tooltip_style="onscreenToolTip">
+                                <translatableAttribute id="tooltip">Select player's team.</translatableAttribute>
+                            </object>
                             <object name="playerTeamText[n]" type="text" style="CenteredLabelText" size="85%+5 0 100%-5 100%"/>
                         </object>
                     </repeat>
@@ -100 +118 @@
             
             
             <object size="100%-425 363 100%-325 455" name="mapTypeSelectionTooltip">
-                <object type="text" style="RightLabelText" size="0 0 100% 30">Match Type:</object>
-                <object type="text" style="RightLabelText" size="0 32 100% 62">Map Filter:</object>
-                <object type="text" style="RightLabelText" size="0 64 100% 94">Select Map:</object>
-                <object type="text" style="RightLabelText" size="0 96 100% 126">Map Size:</object>
+                <object type="text" style="RightLabelText" size="0 0 100% 30">
+                    <translatableAttribute id="caption">Match Type:</translatableAttribute>
+                </object>
+                <object type="text" style="RightLabelText" size="0 32 100% 62">
+                    <translatableAttribute id="caption">Map Filter:</translatableAttribute>
+                </object>
+                <object type="text" style="RightLabelText" size="0 64 100% 94">
+                    <translatableAttribute id="caption">Select Map:</translatableAttribute>
+                </object>
+                <object type="text" style="RightLabelText" size="0 96 100% 126">
+                    <translatableAttribute id="caption">Map Size:</translatableAttribute>
+                </object>
             </object>
 
             <object size="100%-327 363 100%-25 423" name="mapFilterSelectionTooltip">
@@ -117 +143 @@
                 type="dropdown"
                 style="StoneDropDown"
                 size="100%-325 363 100%-25 391"
-                tooltip_style="onscreenToolTip"
-                tooltip="Select a map type.">
+                tooltip_style="onscreenToolTip">
+                <translatableAttribute id="tooltip">Select a map type.</translatableAttribute>
                 <action on="SelectionChange">selectMapType(this.list_data[this.selected]);</action>
             </object>
 
@@ -126 +152 @@
                 type="dropdown"
                 style="StoneDropDown"
                 size="100%-325 395 100%-25 423"
-                tooltip_style="onscreenToolTip"
-                tooltip="Select a map filter.">
-                <action on="SelectionChange">selectMapFilter(this.list[this.selected]);</action>
+                tooltip_style="onscreenToolTip">
+                <translatableAttribute id="tooltip">Select a map filter.</translatableAttribute>
+                <action on="SelectionChange">selectMapFilter(this.list_data[this.selected]);</action>
             </object>
             
             <object size="100%-325 427 100%-25 455" name="mapSelectionPannel" z="55">
@@ -137 +163 @@
                     style="StoneDropDown"
                     type="dropdown"
                     size="0 0 100% 100%"
-                    tooltip_style="onscreenToolTip"
-                    tooltip="Select a map to play on.">
+                    tooltip_style="onscreenToolTip">
+                    <translatableAttribute id="tooltip">Select a map to play on.</translatableAttribute>
                     <action on="SelectionChange">selectMap(this.list_data[this.selected]);</action>
                 </object>
 
             </object>
             
-            <object name="mapSize" size="100%-325 459 100%-25 487" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip" tooltip="Select map size. (Larger sizes may reduce performance.)"/>      
+            <object name="mapSize" size="100%-325 459 100%-25 487" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip">
+                <translatableAttribute id="tooltip">Select map size. (Larger sizes may reduce performance.)</translatableAttribute>
+            </object>
             
             <!-- Map Preview -->
             <object  type="image" sprite="BackgroundIndentFillDark" name="gamePreviewBox" size="100%-426 57 100%-24 359">
@@ -168 +196 @@
                     style="StoneButton"
                     size="100%-120 0 100% 28"
                     tooltip_style="onscreenToolTip"
-                    tooltip="See more game options"
                 >
-                    More Options
+                    <translatableAttribute id="caption">More Options</translatableAttribute>
+                    <translatableAttribute id="tooltip">See more game options</translatableAttribute>
                     <action on="Press">toggleMoreOptions();</action>
                 </object>
                 
@@ -180 +208 @@
             <!-- More Options -->
             <object name="moreOptions" type="image" sprite="StoneWindow" size="50%-200 50%-150 50%+200 50%+155" z="70" hidden="true">
                 <object style="TitleText" type="text" size="50%-128 11 50%+128 27">
-                    More Options
+                    <translatableAttribute id="caption">More Options</translatableAttribute>
                 </object>
                 
                 <object size="14 38 94% 66">
                     <object size="0 0 40% 28">
-                        <object size="0 0 100% 100%" type="text" style="RightLabelText">Game Speed:</object>
+                        <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                            <translatableAttribute id="caption">Game Speed:</translatableAttribute>
+                        </object>
                     </object>
                     <object name="gameSpeedText" size="40% 0 100% 100%" type="text" style="LeftLabelText"/>
-                    <object name="gameSpeed" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip" tooltip="Select game speed."/>
+                    <object name="gameSpeed" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip">
+                        <translatableAttribute id="tooltip">Select game speed.</translatableAttribute>
+                    </object>
                 </object>
 
                 <object size="14 68 94% 96">
                     <object size="0 0 40% 28">
-                        <object size="0 0 100% 100%" type="text" style="RightLabelText">Victory Condition:</object>
+                        <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                            <translatableAttribute id="caption">Victory Condition:</translatableAttribute>
+                        </object>
                     </object>
                     <object name="victoryConditionText" size="40% 0 100% 100%" type="text" style="LeftLabelText"/>
-                    <object name="victoryCondition" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip" tooltip="Select victory condition."/>
+                    <object name="victoryCondition" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip">
+                        <translatableAttribute id="tooltip">Select victory condition.</translatableAttribute>
+                    </object>
                 </object>
                 
                 <object size="14 98 94% 126">
                     <object size="0 0 40% 28">
-                        <object size="0 0 100% 100%" type="text" style="RightLabelText">Population Cap:</object>
+                        <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                            <translatableAttribute id="caption">Population Cap:</translatableAttribute>
+                        </object>
                     </object>
                     <object name="populationCapText" size="40% 0 100% 100%" type="text" style="LeftLabelText"/>
-                    <object name="populationCap" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip" tooltip="Select population cap."/>
+                    <object name="populationCap" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip">
+                        <translatableAttribute id="tooltip">Select population cap.</translatableAttribute>
+                    </object>
                 </object>
                 
                 <object size="14 128 94% 156">
                     <object size="0 0 40% 28">
-                        <object size="0 0 100% 100%" type="text" style="RightLabelText">Starting Resources:</object>
+                        <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                            <translatableAttribute id="caption">Starting Resources:</translatableAttribute>
+                        </object>
                     </object>
                     <object name="startingResourcesText" size="40% 0 100% 100%" type="text" style="LeftLabelText"/>
-                    <object name="startingResources" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip" tooltip="Select the game's starting resources."/>
+                    <object name="startingResources" size="40% 0 100% 28" type="dropdown" style="StoneDropDown" hidden="true" tooltip_style="onscreenToolTip">
+                        <translatableAttribute id="tooltip">Select the game's starting resources.</translatableAttribute>
+                    </object>
                 </object>
                 
                 <object size="14 158 94% 246">
                     <object size="0 0 40% 28">
-                        <object size="0 0 100% 100%" type="text" style="RightLabelText">Reveal Map:</object>
+                        <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                            <translatableAttribute id="caption">Reveal Map:</translatableAttribute>
+                        </object>
                     </object>
                     <object size="0 30 40% 58">
-                        <object size="0 0 100% 100%" type="text" style="RightLabelText">Teams Locked:</object>
+                        <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                            <translatableAttribute id="caption">Teams Locked:</translatableAttribute>
+                        </object>
                     </object>
                     <object size="0 60 40% 88" name="enableCheatsDesc" hidden="true">
-                        <object size="0 0 100% 100%" type="text" style="RightLabelText">Cheats:</object>
+                        <object size="0 0 100% 100%" type="text" style="RightLabelText">
+                            <translatableAttribute id="caption">Cheats:</translatableAttribute>
+                        </object>
                     </object>
                     
                     <object size="40% 0 100% 28">
                         <object name="revealMapText" size="0 0 100% 100%" type="text" style="LeftLabelText"/>
-                        <object name="revealMap" size="4 50%-8 20 50%+8" type="checkbox" style="StoneCrossBox" hidden="true" tooltip_style="onscreenToolTip" tooltip="Toggle reveal map."/>
+                        <object name="revealMap" size="4 50%-8 20 50%+8" type="checkbox" style="StoneCrossBox" hidden="true" tooltip_style="onscreenToolTip">
+                            <translatableAttribute id="tooltip">Toggle reveal map.</translatableAttribute>
+                        </object>
                     </object>
                     <object size="40% 30 100% 58">
                         <object name="lockTeamsText" size="0 0 100% 100%" type="text" style="LeftLabelText"/>
-                        <object name="lockTeams" size="4 50%-8 20 50%+8" type="checkbox" style="StoneCrossBox" hidden="true" tooltip_style="onscreenToolTip" tooltip="Toggle locked teams."/>
+                        <object name="lockTeams" size="4 50%-8 20 50%+8" type="checkbox" style="StoneCrossBox" hidden="true" tooltip_style="onscreenToolTip">
+                            <translatableAttribute id="tooltip">Toggle locked teams.</translatableAttribute>
+                        </object>
                     </object>
                     <object size="40% 60 100% 88">
                         <object name="enableCheatsText" size="0 0 100% 100%" type="text" style="LeftLabelText" hidden="true"/>
-                        <object name="enableCheats" size="4 50%-8 20 50%+8" type="checkbox" style="StoneCrossBox" hidden="true" tooltip_style="onscreenToolTip" tooltip="Toggle the usability of cheats."/>
+                        <object name="enableCheats" size="4 50%-8 20 50%+8" type="checkbox" style="StoneCrossBox" hidden="true" tooltip_style="onscreenToolTip">
+                            <translatableAttribute id="tooltip">Toggle the usability of cheats.</translatableAttribute>
+                        </object>
                     </object>
                 </object>
 
@@ -247 +303 @@
                     style="StoneButton"
                     size="50%-70 248 50%+70 274"
                     tooltip_style="onscreenToolTip"
-                    tooltip="Close more game options window"
                 >
-                    OK
+                    <translatableAttribute id="caption">OK</translatableAttribute>
+                    <translatableAttribute id="tooltip">Close more game options window</translatableAttribute>
                     <action on="Press">toggleMoreOptions();</action>
                 </object>
             <!-- End More Options -->
@@ -279 +335 @@
                 sprite="BackgroundTranslucent"
                 hidden="true"
                 size="100%-700 100%-56 100%-312 100%-24"
-            >[Tooltip text]</object>
+            >
+                <translatableAttribute id="caption">[Tooltip text]</translatableAttribute>
+            </object>
             
             <!-- Start Button -->
             <object
@@ -288 +346 @@
                 style="StoneButton"
                 size="100%-308 100%-52 100%-168 100%-24"
                 tooltip_style="onscreenToolTip"
-                tooltip="Start a new game with the current settings."
                 enabled="false"
             >
-                Start game!
+                <translatableAttribute id="caption">Start game!</translatableAttribute>
+                <translatableAttribute id="tooltip">Start a new game with the current settings.</translatableAttribute>
                 <action on="Press">launchGame();</action>
             </object>
 
@@ -302 +360 @@
                 style="StoneButton"
                 size="100%-164 100%-52 100%-24 100%-24"
                 tooltip_style="onscreenToolTip"
-                tooltip="Return to the main menu."
             >
-                Main menu
+                <translatableAttribute id="caption">Main menu</translatableAttribute>
+                <translatableAttribute id="tooltip">Return to the main menu.</translatableAttribute>
                 <action on="Press">
                     <![CDATA[
                         cancelSetup();
@@ -314 +372 @@
             </object>
 
         </object>
-            
+
     </object>
 
 </objects>

binaries/data/mods/public/gui/gamesetup/gamesetup_mp.js

@@ -18 +18 @@
         getGUIObjectByName("pageHost").hidden = false;
         break;
     default:
-        error("Unrecognised multiplayer game type : " + multiplayerGameType);
+        error(sprintf(translate("Unrecognised multiplayer game type: %(gameType)s"), { gameType: multiplayerGameType }));
         break;
     }
 }
@@ -35 +35 @@
     g_GameType = type;
     g_IsConnecting = true;
     g_IsRejoining = false;
-    getGUIObjectByName("connectionStatus").caption = "Connecting to server...";
+    getGUIObjectByName("connectionStatus").caption = translate("Connecting to server...");
 }
 
 function onTick()
@@ -49 +49 @@
         if (!message)
             break;
 
-        log("Net message: "+uneval(message));
+        log(sprintf(translate("Net message: %(message)s"), { message: uneval(message) }));
 
         // If we're rejoining an active game, we don't want to actually display
         // the game setup screen, so perform similar processing to gamesetup.js
@@ -67 +67 @@
                     return;
 
                 default:
-                    error("Unrecognised netstatus type "+message.status);
+                    error(sprintf(translate("Unrecognised netstatus type %(netType)s"), { netType: message.status }));
                     break;
                 }
                 break;
@@ -93 +93 @@
                 break;
 
             default:
-                error("Unrecognised net message type "+message.type);
+                error(sprintf(translate("Unrecognised net message type %(messageType)s"), { messageType: message.type }));
             }
         }
         else
@@ -106 +106 @@
                 switch (message.status)
                 {
                 case "connected":
-                    getGUIObjectByName("connectionStatus").caption = "Registering with server...";
+                    getGUIObjectByName("connectionStatus").caption = translate("Registering with server...");
                     break;
 
                 case "authenticated":
                     if (message.rejoining)
                     {
-                        getGUIObjectByName("connectionStatus").caption = "Game has already started - rejoining...";
+                        getGUIObjectByName("connectionStatus").caption = translate("Game has already started, rejoining...");
                         g_IsRejoining = true;
                         return; // we'll process the game setup messages in the next tick
                     }
@@ -128 +128 @@
                     return;
 
                 default:
-                    error("Unrecognised netstatus type "+message.status);
+                    error(sprintf(translate("Unrecognised netstatus type %(netType)s"), { netType: message.status }));
                     break;
                 }
                 break;
             default:
-                error("Unrecognised net message type "+message.type);
+                error(sprintf(translate("Unrecognised net message type %(messageType)s"), { messageType: message.type }));
                 break;
             }
         }
@@ -156 +156 @@
     {
         cancelSetup();
         messageBox(400, 200,
-            "Cannot host game: " + e.message + ".",
-            "Error", 2);
+            sprintf(translate("Cannot host game: %(message)s."), { message: e.message }),
+            translate("Error"), 2);
         return false;
     }
 
@@ -177 +177 @@
     {
         cancelSetup();
         messageBox(400, 200,
-            "Cannot join game: " + e.message + ".",
-            "Error", 2);
+            sprintf(translate("Cannot join game: %(message)s."), { message: e.message }),
+            translate("Error"), 2);
         return false;
     }
 

binaries/data/mods/public/gui/gamesetup/gamesetup_mp.xml

@@ -16 +16 @@
         </action>
 
         <object style="TitleText" type="text" size="50%-128 0%-16 50%+128 16">
-            Multiplayer
+            <translatableAttribute id="caption">Multiplayer</translatableAttribute>
         </object>
 
         <object name="pageJoin" size="0 32 100% 100%" hidden="true">
 
             <object type="text" style="CenteredLabelText" size="0 0 400 30">
-                Joining an existing game.
+                <translatableAttribute id="caption">Joining an existing game.</translatableAttribute>
             </object>
 
             <object type="text" size="0 40 200 70" style="RightLabelText">
-                Player name:
+                <translatableAttribute id="caption">Player name:</translatableAttribute>
             </object>
 
             <object name="joinPlayerName" type="input" size="210 40 100%-32 64" style="StoneInput">
@@ -36 +36 @@
             </object>
 
             <object type="text" size="0 80 200 110" style="RightLabelText">
-                Server Hostname or IP:
+                <translatableAttribute id="caption">Server Hostname or IP:</translatableAttribute>
             </object>
 
             <object name="joinServer" type="input" size="210 80 100%-32 104" style="StoneInput">
@@ -46 +46 @@
             </object>3 100%-33 103 100%-3
 
             <object hotkey="confirm" type="button" size="50%-144 100%-60 50%-16 100%-32" style="StoneButton">
-                Continue
+                <translatableAttribute id="caption">Continue</translatableAttribute>
                 <action on="Press">
                     var joinPlayerName = getGUIObjectByName("joinPlayerName").caption;
                     var joinServer = getGUIObjectByName("joinServer").caption;
@@ -62 +62 @@
         <object name="pageHost" size="0 32 100% 100%" hidden="true">
 
             <object type="text" style="CenteredLabelText" size="0 0 400 30">
-                Set up your server to host.
+                <translatableAttribute id="caption">Set up your server to host.</translatableAttribute>
             </object>
 
             <object type="text" size="0 40 200 70" style="RightLabelText">
-                Player name:
+                <translatableAttribute id="caption">Player name:</translatableAttribute>
             </object>
 
             <object name="hostPlayerName" type="input" size="210 40 100%-32 64" style="StoneInput">
@@ -77 +77 @@
 
             <object hidden="true"> <!-- TODO: restore this when the server name is actually used -->
             <object type="text" size="0 80 200 110" style="RightLabelText">
-                Server name:
+                <translatableAttribute id="caption">Server name:</translatableAttribute>
             </object>
 
             <object name="hostServerName" type="input" size="210 80 100%-32 104" style="StoneInput">
@@ -88 +88 @@
             </object>
 
             <object type="button" size="50%-144 100%-60 50%-16 100%-32" style="StoneButton">
-                Continue
+                <translatableAttribute id="caption">Continue</translatableAttribute>
                 <action on="Press">
                     var hostPlayerName = getGUIObjectByName("hostPlayerName").caption;
                     Engine.SaveMPConfig(hostPlayerName, Engine.GetDefaultMPServer());
@@ -103 +103 @@
         </object>
 
         <object type="button" style="StoneButton" size="50%+16 100%-60 50%+144 100%-32">
-            Cancel
+            <translatableAttribute id="caption">Cancel</translatableAttribute>
             <action on="Press">cancelSetup();</action>
         </object>
 
         <object name="pageConnecting" hidden="true">
             <object name="connectionStatus" type="text" style="CenteredLabelText" size="0 100 100% 120">
-                [Connection status]
+                <translatableAttribute id="caption">[Connection status]</translatableAttribute>
             </object>
         </object>
 

binaries/data/mods/public/gui/loading/loading.js

@@ -15 +15 @@
     {
         // Set tip text
         var tipTextFilePath = tipTextLoadingArray[getRandom (0, tipTextLoadingArray.length-1)];
-        var tipText = readFile(tipTextFilePath);
+        var tipText = Engine.translateLines(readFile(tipTextFilePath));
 
         if (tipText)
         {
@@ -34 +34 @@
     }
     else
     {
-        error("Failed to find any matching tips for the loading screen.")
+        error(translate("Failed to find any matching tips for the loading screen."))
     }
 
     // janwas: main loop now sets progress / description, but that won't
@@ -48 +48 @@
         {
         case "skirmish":
         case "scenario":
-            loadingMapName.caption = "Loading \"" + mapName + "\"";
+            loadingMapName.caption = sprintf(translate("Loading \"%(map)s\""), {map: mapName});
             break;
 
         case "random":
-            loadingMapName.caption = "Generating \"" + mapName + "\"";
+            loadingMapName.caption = sprintf(translate("Generating \"%(map)s\""), {map: mapName});
             break;
 
         default:
-            error("Unknown map type: " + data.attribs.mapType);
+            error(sprintf(translate("Unknown map type: %(mapType)s"), { mapType: data.attribs.mapType }));
         }
     }
 
@@ -65 +65 @@
 
     // Pick a random quote of the day (each line is a separate tip).
     var quoteArray = readFileLines("gui/text/quotes.txt");
-    getGUIObjectByName("quoteText").caption = quoteArray[getRandom(0, quoteArray.length-1)];
+    getGUIObjectByName("quoteText").caption = translate(quoteArray[getRandom(0, quoteArray.length-1)]);
 }
 
 // ====================================================================

binaries/data/mods/public/gui/loading/loading.xml

@@ -44 +44 @@
 
         <!-- LOADING SCREEN QUOTE (needs increased z value to overcome the transparent area of the tip image above it -->
         <object size="50%-448 50%+230 50%+448 100%-16" z="20">
-            <object name="quoteTitleText" size="0 0 100% 30" type="text" style="LoadingTitleText">Quote of the Day:</object>
+            <object name="quoteTitleText" size="0 0 100% 30" type="text" style="LoadingTitleText">
+                <translatableAttribute id="caption">Quote of the Day:</translatableAttribute>
+            </object>
             <object name="quoteText" size="0 30 100% 100%" type="text" style="LoadingText"></object>
         </object>
     </object>

new file inaries/data/mods/public/gui/locale/locale.js

@@ +1 @@
+function init()
+{
+    var languageList = getGUIObjectByName("languageList");
+    languageList.list = Engine.GetSupportedLocaleDisplayNames();
+    languageList.list_data = Engine.GetSupportedLocaleCodes();
+    languageList.selected = Engine.GetCurrentLocaleIndex();
+}
+
+function cancelSetup()
+{
+    Engine.PopGuiPage();
+}
+
+function applySelectedLocale()
+{
+    var languageList = getGUIObjectByName("languageList");
+    Engine.SetLocale(languageList.list_data[languageList.selected]);
+    Engine.SwitchGuiPage("page_pregame.xml");
+}

new file inaries/data/mods/public/gui/locale/locale.xml

@@ +1 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<objects>
+
+    <script file="gui/common/functions_global_object.js"/>
+    <script file="gui/locale/locale.js"/>
+
+    <!-- Add a translucent black background to fade out the menu page -->
+    <object type="image" z="0" sprite="bkTranslucent"/>
+
+    <object type="image" style="StoneDialog" size="50%-190 50%-100 50%+190 50%+100">
+
+        <object style="TitleText" type="text" size="50%-128 0%-16 50%+128 16">
+            <translatableAttribute id="caption">Language</translatableAttribute>
+        </object>
+
+        <object size="0 32 100% 100%">
+            <object type="text" size="0 0 140 30" style="RightLabelText">
+                <translatableAttribute id="caption">Language:</translatableAttribute>
+            </object>
+
+            <object name="languageList"
+                    type="dropdown"
+                    style="StoneDropDown"
+                    size="150 0 100%-32 28">
+            </object>
+
+            <object type="text" size="30 40 100%-30 100" style="LeftLabelText">
+                <translatableAttribute id="caption">Note: Restart the game for these changes to take effect.</translatableAttribute>
+            </object>
+
+            <object type="button" size="50%-154 100%-60 50%+10 100%-32" style="StoneButton">
+                <translatableAttribute id="caption">Accept</translatableAttribute>
+                <action on="Press">applySelectedLocale();</action>
+            </object>
+        </object>
+
+        <object type="button" style="StoneButton" size="50%+26 100%-60 50%+154 100%-32">
+            <translatableAttribute id="caption">Cancel</translatableAttribute>
+            <action on="Press">cancelSetup();</action>
+        </object>
+
+    </object>
+
+</objects>

binaries/data/mods/public/gui/manual/manual.js

@@ -2 +2 @@
 
 function init(data)
 {
-    getGUIObjectByName("mainText").caption = readFile("gui/manual/" + data.page + ".txt");
+    getGUIObjectByName("mainText").caption = Engine.translateLines(readFile("gui/manual/" + data.page + ".txt"));
     closeCallback = data.closeCallback;
 }
 

binaries/data/mods/public/gui/manual/manual.xml

@@ -8 +8 @@
     <object type="image" z="0" style="TranslucentPanel"/>
 
     <object type="image" style="StoneDialog" size="50%-466 50%-316 50%+466 50%+316">
-    <object type="text" style="TitleText" size="50%-128 0%-16 50%+128 16">Manual</object>
+        <object type="text" style="TitleText" size="50%-128 0%-16 50%+128 16">
+            <translatableAttribute id="caption">Manual</translatableAttribute>
+        </object>
 
         <object type="image" sprite="BackgroundTranslucent" size="20 20 100%-20 100%-58">
             <object name="mainText" type="text" style="textPanel"/>
         </object>
-    <object type="button" style="StoneButton" size="100%-308 100%-52 100%-168 100%-24">
-            Online Manual
+
+        <object type="button" style="StoneButton" size="100%-308 100%-52 100%-168 100%-24">
+            <translatableAttribute id="caption">Online Manual</translatableAttribute>
             <action on="Press"><![CDATA[
                 var url = "http://trac.wildfiregames.com/wiki/0adManual";
                 Engine.OpenURL(url);
                 messageBox(450, 200, "Opening "+url+"\n in default web browser. Please wait...", "Opening page", 2);
-                ]]></action>
+            ]]></action>
         </object>
         <object type="button" style="StoneButton" tooltip_style="snToolTip" size="100%-164 100%-52 100%-24 100%-24">
-            Close
+            <translatableAttribute id="caption">Close</translatableAttribute>
             <action on="Press"><![CDATA[closeManual();]]></action>
         </object>
     </object>

new file inaries/data/mods/public/gui/msgbox/msgbox.js

@@ +1 @@
+function init(data)
+{
+    var mbMainObj = getGUIObjectByName("mbMain");
+    var mbTitleObj = getGUIObjectByName("mbTitleBar");
+    var mbTextObj = getGUIObjectByName("mbText");
+
+    var mbButton1Obj = getGUIObjectByName("mbButton1");
+    var mbButton2Obj = getGUIObjectByName("mbButton2");
+    var mbButton3Obj = getGUIObjectByName("mbButton3");
+
+    // Calculate size
+    var mbLRDiff = data.width / 2;     // Message box left/right difference from 50% of screen
+    var mbUDDiff = data.height / 2;    // Message box up/down difference from 50% of screen
+
+    var mbSizeString = "50%-" + mbLRDiff + " 50%-" + mbUDDiff + " 50%+" + mbLRDiff + " 50%+" + mbUDDiff;
+
+    mbMainObj.size = mbSizeString;
+
+    // Texts
+    mbTitleObj.caption  = data.title;
+    mbTextObj.caption   = data.message;
+
+    if (data.font)
+        mbTextObj.font = data.font;
+
+    // Message box modes
+    // There is a number of standard modes, and if none of these is used (mbMode == 0), the button captions will be
+    // taken from the array mbButtonCaptions; there currently is a maximum of three buttons.
+    switch (data.mode)
+    {
+    case 1:
+        // Simple Yes/No question box
+        data.buttonCaptions = [translate("Yes"), translate("No")];
+        break;
+    case 2:
+        // Okay-only box
+        data.buttonCaptions = [translate("OK")];
+        break;
+    case 3:
+        // Retry/Abort/Ignore box (will we ever need this?!)
+        data.buttonCaptions = [translate("Retry"), translate("Ignore"), translate("Abort")];
+    default:
+        break;
+    }
+
+    // Buttons
+    var codes = data.buttonCode;
+    if (data.buttonCaptions.length >= 1)
+    {
+        mbButton1Obj.caption = data.buttonCaptions[0];
+        mbButton1Obj.onPress = function () { Engine.PopGuiPage(); if (codes && codes[0]) codes[0](); }
+        mbButton1Obj.hidden = false;
+    }
+    if (data.buttonCaptions.length >= 2)
+    {
+        mbButton2Obj.caption = data.buttonCaptions[1];
+        mbButton2Obj.onPress = function () { Engine.PopGuiPage(); if (codes && codes[1]) codes[1](); }
+        mbButton2Obj.hidden = false;
+    }
+    if (data.buttonCaptions.length >= 3)
+    {
+        mbButton3Obj.caption = data.buttonCaptions[2];
+        mbButton3Obj.onPress = function () { Engine.PopGuiPage(); if (codes && codes[2]) codes[2](); }
+        mbButton3Obj.hidden = false;
+    }
+
+    switch (data.buttonCaptions.length)
+    {
+    case 1:
+        mbButton1Obj.size = "50%-64 100%-76 50%+64 100%-48";
+        break;
+    case 2:
+        mbButton1Obj.size = "50%-144 100%-76 50%-16 100%-48";
+        mbButton2Obj.size = "50%+16 100%-76 50%+144 100%-48";
+        break;
+    case 3:
+        mbButton1Obj.size = "10% 100%-76 30% 100%-48";
+        mbButton2Obj.size = "40% 100%-76 60% 100%-48";
+        mbButton3Obj.size = "70% 100%-76 90% 100%-48";
+        break;
+    }
+}

binaries/data/mods/public/gui/msgbox/msgbox.xml

@@ -1 +1 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <objects>
-    <script><![CDATA[
-    function init(data)
-    {
-        var mbMainObj = getGUIObjectByName("mbMain");
-        var mbTitleObj = getGUIObjectByName("mbTitleBar");
-        var mbTextObj = getGUIObjectByName("mbText");
-
-        var mbButton1Obj = getGUIObjectByName("mbButton1");
-        var mbButton2Obj = getGUIObjectByName("mbButton2");
-        var mbButton3Obj = getGUIObjectByName("mbButton3");
-
-        // Calculate size
-        var mbLRDiff = data.width / 2;     // Message box left/right difference from 50% of screen
-        var mbUDDiff = data.height / 2;    // Message box up/down difference from 50% of screen
-
-        var mbSizeString = "50%-" + mbLRDiff + " 50%-" + mbUDDiff + " 50%+" + mbLRDiff + " 50%+" + mbUDDiff;
-
-        mbMainObj.size = mbSizeString;
-
-        // Texts
-        mbTitleObj.caption  = data.title;
-        mbTextObj.caption   = data.message;
-
-        if (data.font)
-            mbTextObj.font = data.font;
-
-        // Message box modes
-        // There is a number of standard modes, and if none of these is used (mbMode == 0), the button captions will be
-        // taken from the array mbButtonCaptions; there currently is a maximum of three buttons.
-        switch (data.mode)
-        {
-        case 1:
-            // Simple Yes/No question box
-            data.buttonCaptions = ["Yes", "No"];
-            break;
-        case 2:
-            // Okay-only box
-            data.buttonCaptions = ["OK"];
-            break;
-        case 3:
-            // Retry/Abort/Ignore box (will we ever need this?!)
-            data.buttonCaptions = ["Retry", "Ignore", "Abort"];
-        default:
-            break;
-        }
-
-        // Buttons
-        var codes = data.buttonCode;
-        if (data.buttonCaptions.length >= 1)
-        {
-            mbButton1Obj.caption = data.buttonCaptions[0];
-            mbButton1Obj.onPress = function () { Engine.PopGuiPage(); if (codes && codes[0]) codes[0](); }
-            mbButton1Obj.hidden = false;
-        }
-        if (data.buttonCaptions.length >= 2)
-        {
-            mbButton2Obj.caption = data.buttonCaptions[1];
-            mbButton2Obj.onPress = function () { Engine.PopGuiPage(); if (codes && codes[1]) codes[1](); }
-            mbButton2Obj.hidden = false;
-        }
-        if (data.buttonCaptions.length >= 3)
-        {
-            mbButton3Obj.caption = data.buttonCaptions[2];
-            mbButton3Obj.onPress = function () { Engine.PopGuiPage(); if (codes && codes[2]) codes[2](); }
-            mbButton3Obj.hidden = false;
-        }
-
-        switch (data.buttonCaptions.length)
-        {
-        case 1:
-            mbButton1Obj.size = "50%-64 100%-76 50%+64 100%-48";
-            break;
-        case 2:
-            mbButton1Obj.size = "50%-144 100%-76 50%-16 100%-48";
-            mbButton2Obj.size = "50%+16 100%-76 50%+144 100%-48";
-            break;
-        case 3:
-            mbButton1Obj.size = "10% 100%-76 30% 100%-48";
-            mbButton2Obj.size = "40% 100%-76 60% 100%-48";
-            mbButton3Obj.size = "70% 100%-76 90% 100%-48";
-            break;
-        }
-    }
-    ]]></script>
+    <script file="gui/msgbox/msgbox.js"/>
 
     <object hotkey="leave">
         <action on="Press">Engine.PopGuiPage();</action>

binaries/data/mods/public/gui/options/options.xml

@@ -13 +13 @@
     <script file="gui/session/music.js"/>
     <script file="gui/options/options.js"/>
     
-        <!-- Add a translucent black background to fade out the menu page -->
+    <!-- Add a translucent black background to fade out the menu page -->
     <object type="image" z="0" style="TranslucentPanel"/>
-        
-        <!-- Settings Window -->
+
+    <!-- Settings Window -->
     <object name="options" type="image" style="StonePanelLight" size="50%-190 50%-120 50%+190 50%+120">
 
-                <object style="StoneDialogTitleBar" type="text" size="50%-128 0%-16 50%+128 16">
-            Game Options
+        <object style="StoneDialogTitleBar" type="text" size="50%-128 0%-16 50%+128 16">
+            <translatableAttribute id="caption">Game Options</translatableAttribute>
         </object>
 
-                <object size="50%-190 50%-80 50%+140 50%+95">
-        
-                        <!-- Settings / shadows -->
-                        <object size="0 10 100%-80 35" type="text" style="RightLabelText" ghost="true">Enable Shadows</object>
-                        <object name="shadowsCheckbox" size="100%-56 15 100%-30 40" type="checkbox" style="StoneCrossBox" checked="true">
-                                <action on="Load">this.checked = Engine.Renderer_GetShadowsEnabled();</action>
-                                <action on="Press">Engine.Renderer_SetShadowsEnabled(this.checked);</action>
-                        </object>   
+        <object size="50%-190 50%-80 50%+140 50%+95">
+
+            <!-- Settings / shadows -->
+            <object size="0 10 100%-80 35" type="text" style="RightLabelText" ghost="true">
+                <translatableAttribute id="caption">Enable Shadows</translatableAttribute>
+            </object>
+            <object name="shadowsCheckbox" size="100%-56 15 100%-30 40" type="checkbox" style="StoneCrossBox" checked="true">
+                <action on="Load">this.checked = Engine.Renderer_GetShadowsEnabled();</action>
+                <action on="Press">Engine.Renderer_SetShadowsEnabled(this.checked);</action>
+            </object>
 
-                        <!-- Settings / Shadow PCF -->
-                        <object size="0 35 100%-80 60" type="text" style="RightLabelText" ghost="true">Enable Shadow Filtering</object>
-                        <object name="shadowPCFCheckbox" size="100%-56 40 100%-30 65" type="checkbox" style="StoneCrossBox" checked="true">
-                                <action on="Load">this.checked = Engine.Renderer_GetShadowPCFEnabled();</action>
-                                <action on="Press">Engine.Renderer_SetShadowPCFEnabled(this.checked);</action>
-                        </object>
+            <!-- Settings / Shadow PCF -->
+            <object size="0 35 100%-80 60" type="text" style="RightLabelText" ghost="true">
+                <translatableAttribute id="caption">Enable Shadow Filtering</translatableAttribute>
+            </object>
+            <object name="shadowPCFCheckbox" size="100%-56 40 100%-30 65" type="checkbox" style="StoneCrossBox" checked="true">
+                <action on="Load">this.checked = Engine.Renderer_GetShadowPCFEnabled();</action>
+                <action on="Press">Engine.Renderer_SetShadowPCFEnabled(this.checked);</action>
+            </object>
 
                         <!-- Settings / Water -->
 <!--                        <object size="0 60 100%-80 85" type="text" style="RightLabelText" ghost="true">Enable Water Reflections</object>
@@ -46 +50 @@
                                 <action on="Press">Engine.Renderer_SetWaterNormalEnabled(this.checked);</action>
                         </object>-->
 
-                        <!-- Settings / Music-->
-                        <object size="0 60 100%-80 85" type="text" style="RightLabelText" ghost="true">Enable Music</object>
-                        <object size="100%-56 65 100%-30 90" type="checkbox" style="StoneCrossBox" checked="true">
-                                <action on="Press">if (this.checked) startMusic(); else stopMusic();</action>
-                        </object>
+            <!-- Settings / Music-->
+            <object size="0 60 100%-80 85" type="text" style="RightLabelText" ghost="true">
+                <translatableAttribute id="caption">Enable Music</translatableAttribute>
+            </object>
+            <object size="100%-56 65 100%-30 90" type="checkbox" style="StoneCrossBox" checked="true">
+                <action on="Press">if (this.checked) startMusic(); else stopMusic();</action>
+            </object>
 
                         <!-- Settings / Dev Overlay -->
 <!--                        <object size="0 110 100%-80 135" type="text" style="RightLabelText" ghost="true">Developer Overlay</object>
                                 <object size="100%-56 115 100%-30 140" type="checkbox" style="StoneCrossBox" checked="false">
                                 <action on="Press">toggleDeveloperOverlay();</action>
                         </object>-->
-                </object>
-                
-                <object type="button" style="StoneButton" size="50%-64 100%-64 50%+64 100%-32">
-            Cancel
+        </object>
+
+        <object type="button" style="StoneButton" size="50%-64 100%-64 50%+64 100%-32">
+            <translatableAttribute id="caption">Cancel</translatableAttribute>
             <action on="Press"><![CDATA[Engine.PopGuiPage();]]></action>
         </object>
 
-        </object>
+    </object>
 </objects>

new file inaries/data/mods/public/gui/page_locale.xml

@@ +1 @@
+<?xml version="1.0" encoding="utf-8"?>
+<page>
+    <include>common/setup.xml</include>
+    <include>common/styles.xml</include>
+    <include>common/sprite1.xml</include>
+    <include>common/common_sprites.xml</include>
+    <include>common/common_styles.xml</include>
+
+    <include>locale/locale.xml</include>
+
+    <include>common/global.xml</include>
+</page>

binaries/data/mods/public/gui/pregame/mainmenu.js

@@ -103 +103 @@
     var d = status.split(/:/, 3);
 
     if (d[0] == "disabled")
-        return "disabled";
+        return translate("disabled");
 
     if (d[0] == "connecting")
-        return "connecting to server";
+        return translate("connecting to server");
 
     if (d[0] == "sending")
     {
         var done = d[1];
-        return "uploading (" + Math.floor(100*done) + "%)";
+        return sprintf(translate("uploading (%f%%)"), Math.floor(100*done));
     }
 
     if (d[0] == "completed")
     {
         var httpCode = d[1];
         if (httpCode == 200)
-            return "upload succeeded";
+            return translate("upload succeeded");
         else
-            return "upload failed (" + httpCode + ")";
+            return sprintf(translate("upload failed (%{errorCode}s)"), { errorCode: httpCode });
     }
 
     if (d[0] == "failed")
     {
         var errCode = d[1];
         var errMessage = d[2];
-        return "upload failed (" + errMessage + ")";
+        return sprintf(translate("upload failed (%{errorMessage}s)"), { errorMessage: errMessage });
     }
 
-    return "unknown";
+    return translate("unknown");
 }
 
 var lastTickTime = new Date;
@@ -166 +166 @@
             messageBox(
                 600,
                 300,
-                "[font=\"serif-bold-16\"][color=\"200 20 20\"]Warning:[/color] You appear to be using non-shader (fixed function) graphics. This option will be removed in a future 0 A.D. release, to allow for more advanced graphics features. We advise upgrading your graphics card to a more recent, shader-compatible model.\n\nPlease press \"Read More\" for more information or \"Ok\" to continue.",
-                "WARNING!",
+                "[font=\"serif-bold-16\"]" +
+                sprintf(translate("%{startWarning}sWarning:%{endWarning}s You appear to be using non-shader (fixed function) graphics. This option will be removed in a future 0 A.D. release, to allow for more advanced graphics features. We advise upgrading your graphics card to a more recent, shader-compatible model."), { startWarning: "[color=\"200 20 20\"]", endWarning: "[/color]"}) +
+                "\n\n" +
+                translate("Please press \"Read More\" for more information or \"OK\" to continue."),
+                translate("WARNING!"),
                 0,
-                ["Ok", "Read More"],
+                [translate("OK"), translate("Read More")],
                 [null, function() { Engine.OpenURL("http://www.wildfiregames.com/forum/index.php?showtopic=16734"); }]
             );
     }
@@ -264 +267 @@
     bottomSprite.size = "100%-2 " + (bottomPosition) + " 100% 100%";
 }
 
+function getBuildString()
+{
+    return sprintf(translate("Build: %(buildDate)s (%(revision)s)"), { buildDate: Engine.GetBuildTimestamp(0), revision: Engine.GetBuildTimestamp(2) });
+}
+
 /*
  * FUNCTIONS BELOW DO NOT WORK YET
  */
@@ -319 +327 @@
 //      guiUnHide ("pg");
 //  }
 //}
+
+function exitGamePressed()
+{
+    closeMenu();
+    var btCaptions = [translate("Yes"), translate("No")];
+    var btCode = [exit, null];
+    messageBox(400, 200, translate("Are you sure you want to quit 0 A.D.?"), translate("Confirmation"), 0, btCaptions, btCode);
+}
+
+function pressedScenarioEditorButton()
+{
+    closeMenu();
+    // Start Atlas
+    if (Engine.AtlasIsAvailable())
+        Engine.RestartInAtlas();
+    else
+        messageBox(400, 200, translate("The scenario editor is not available or failed to load."), translate("Error"), 2);
+}

binaries/data/mods/public/gui/pregame/mainmenu.xml

@@ -91 +91 @@
             <object
                 type="text"
                 style="userReportText"
->[font="serif-bold-16"]Help improve 0 A.D.![/font]
-
-You can automatically send us anonymous feedback that will help us fix bugs, and improve performance and compatibility.
+            >
+                <attribute id="caption">
+                    <keep>[font="serif-bold-16"]</keep>
+                    <translate>Help improve 0 A.D.!</translate>
+                    <keep>[/font]\n\n</keep>
+                    <translate>You can automatically send us anonymous feedback that will help us fix bugs, and improve performance and compatibility.</translate>
+                </attribute>
             </object>
             <object type="button" style="StoneButton" size="8 100%-36 146 100%-8">
-                Enable feedback
+                <translatableAttribute id="caption">Enable feedback</translatableAttribute>
                 <action on="Press">EnableUserReport(true);</action>
             </object>
             <object type="button" style="StoneButton" size="100%-146 100%-36 100%-8 100%-8">
-                Technical details
+                <translatableAttribute id="caption">Technical details</translatableAttribute>
                 <action on="Press">Engine.PushGuiPage("page_manual.xml", { "page": "userreport" });</action>
             </object>
         </object>
@@ -115 +119 @@
                 name="userReportEnabledText"
                 type="text"
                 style="userReportText"
->[font="serif-bold-16"]Thank you for helping improve 0 A.D.![/font]
-
-Anonymous feedback is currently enabled.
-Status: $status.
-                        </object>
+            >
+                <attribute id="caption">
+                    <keep>[font="serif-bold-16"]</keep>
+                    <translate>Thank you for helping improve 0 A.D.!</translate>
+                    <keep>[/font]\n\n</keep>
+                    <translate>Anonymous feedback is currently enabled.</translate>
+                    <keep>\n</keep>
+                    <translate>Status: $status.</translate>
+                </attribute>
+            </object>
 
             <object type="button" style="StoneButton" size="8 100%-36 146 100%-8">
-                Disable feedback
+                <translatableAttribute id="caption">Disable feedback</translatableAttribute>
                 <action on="Press">EnableUserReport(false);</action>
             </object>
             <object type="button" style="StoneButton" size="100%-146 100%-36 100%-8 100%-8">
-                Technical details
+                <translatableAttribute id="caption">Technical details</translatableAttribute>
                 <action on="Press">Engine.PushGuiPage("page_manual.xml", { "page": "userreport" });</action>
             </object>
         </object>
@@ -157 +166 @@
                 type="image"
                 size="0 4 100%-4 100%-4"
                 tooltip_style="pgToolTip"
-                tooltip="The 0 A.D. Game Manual."
                 hidden="true"
             >
                 <object name="subMenuSinglePlayerButton"
@@ -165 +173 @@
                     style="StoneButtonFancy"
                     size="0 0 100% 28"
                     tooltip_style="pgToolTip"
-                    tooltip="Click here to start a new single player game."
                 >
-                    Matches
+                    <translatableAttribute id="caption">Matches</translatableAttribute>
+                    <translatableAttribute id="tooltip">Click here to start a new single player game.</translatableAttribute>
                     <action on="Press">
                         Engine.SwitchGuiPage("page_gamesetup.xml", { type: "offline" });
                     </action>
@@ -178 +186 @@
                     style="StoneButtonFancy"
                     size="0 32 100% 60"
                     tooltip_style="pgToolTip"
-                    tooltip="Relive history through historical military campaigns. [NOT YET IMPLEMENTED]"
                     enabled="false"
                 >
-                    Campaigns
+                    <translatableAttribute id="caption">Campaigns</translatableAttribute>
+                    <translatableAttribute id="tooltip">Relive history through historical military campaigns. [NOT YET IMPLEMENTED]</translatableAttribute>
                     <action on="Press">
                     closeMenu();
                         <![CDATA[
@@ -196 +204 @@
                     style="StoneButtonFancy"
                     size="0 64 100% 92"
                     tooltip_style="pgToolTip"
-                    tooltip="Click here to load a saved game."
                 >
-                    Load Game
+                    <translatableAttribute id="caption">Load Game</translatableAttribute>
+                    <translatableAttribute id="tooltip">Click here to load a saved game.</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         Engine.PushGuiPage("page_loadgame.xml", { type: "offline" });
@@ -212 +220 @@
                 type="image"
                 size="0 4 100%-4 100%-4"
                 tooltip_style="pgToolTip"
-                tooltip="The 0 A.D. Game Manual"
                 hidden="true"
             >
                 <object name="subMenuMultiplayerJoinButton"
@@ -220 +227 @@
                     style="StoneButtonFancy"
                     size="0 0 100% 28"
                     tooltip_style="pgToolTip"
-                    tooltip="Joining an existing multiplayer game."
                 >
-                    Join Game
+                    <translatableAttribute id="caption">Join Game</translatableAttribute>
+                    <translatableAttribute id="tooltip">Joining an existing multiplayer game.</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         // Open Multiplayer connection window with join option.
@@ -235 +242 @@
                     style="StoneButtonFancy"
                     size="0 32 100% 60"
                     tooltip_style="pgToolTip"
-                    tooltip="Host a multiplayer game.\n\nRequires UDP port 20595 to be open."
                 >
-                    Host Game
+                    <translatableAttribute id="caption">Host Game</translatableAttribute>
+                    <translatableAttribute id="tooltip">Host a multiplayer game.\n\nRequires UDP port 20595 to be open.</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         // Open Multiplayer connection window with host option.
@@ -251 +258 @@
                 type="image"
                 size="0 4 100%-4 100%-4"
                 tooltip_style="pgToolTip"
-                tooltip="The 0 A.D. Game Manual"
                 hidden="true"
             >
                 <object name="submenuOptionsButton"
@@ -259 +265 @@
                     type="button"
                     size="0 0 100% 28"
                     tooltip_style="pgToolTip"
-                    tooltip="Adjust game settings. [NOT YET IMPLEMENTED]"
                     enabled="false"
                 >
-                    Options
+                    <translatableAttribute id="caption">Options</translatableAttribute>
+                    <translatableAttribute id="tooltip">Adjust game settings. [NOT YET IMPLEMENTED]</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         <![CDATA[
@@ -272 +278 @@
                     </action>
                 </object>
 
-                <object name="submenuEditorButton"
+                <object name="submenuLocaleButton"
                     style="StoneButtonFancy"
                     type="button"
                     size="0 32 100% 60"
                     tooltip_style="pgToolTip"
-                    tooltip="Open the Atlas Scenario Editor in a new window. You can run this more reliably by starting the game with the command-line argument &quot;-editor&quot;."
                 >
-                    Scenario Editor
+                    <translatableAttribute id="caption">Language</translatableAttribute>
+                    <translatableAttribute id="tooltip">Choose the language of the game.</translatableAttribute>
                     <action on="Press">
-                        closeMenu();
                         <![CDATA[
-                            // Start Atlas
-                            if (Engine.AtlasIsAvailable())
-                            Engine.RestartInAtlas();
-                            else
-                            messageBox(400, 200, "The scenario editor is not available or failed to load.", "Error", 2);
+                        closeMenu();
+                        Engine.PushGuiPage("page_locale.xml");
                         ]]>
                     </action>
                 </object>
+
+                <object name="submenuEditorButton"
+                    style="StoneButtonFancy"
+                    type="button"
+                    size="0 64 100% 92"
+                    tooltip_style="pgToolTip"
+                >
+                    <translatableAttribute id="caption">Scenario Editor</translatableAttribute>
+                    <translatableAttribute id="tooltip">Open the Atlas Scenario Editor in a new window. You can run this more reliably by starting the game with the command-line argument &quot;-editor&quot;.</translatableAttribute>
+                    <action on="Press">
+                        pressedScenarioEditorButton();
+                    </action>
+                </object>
             </object>
         </object><!-- end of submenu -->
 
@@ -338 +353 @@
                     style="StoneButtonFancy"
                     size="4 4 100%-4 32"
                     tooltip_style="pgToolTip"
-                    tooltip="The 0 A.D. Game Manual"
                 >
-                    Learn To Play
+                    <translatableAttribute id="caption">Learn To Play</translatableAttribute>
+                    <translatableAttribute id="tooltip">The 0 A.D. Game Manual</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         <![CDATA[
@@ -355 +370 @@
                     type="button"
                     size="4 36 100%-4 64"
                     tooltip_style="pgToolTip"
-                    tooltip="Challenge the computer player to a single player match."
                 >
-                    Single Player
+                    <translatableAttribute id="caption">Single Player</translatableAttribute>
+                    <translatableAttribute id="tooltip">Challenge the computer player to a single player match.</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         openMenu("submenuSinglePlayer", (this.parent.size.top+this.size.top), (this.size.bottom-this.size.top), 3);
@@ -370 +385 @@
                     type="button"
                     size="4 68 100%-4 96"
                     tooltip_style="pgToolTip"
-                    tooltip="Fight against one or more human players in a multiplayer game."
                 >
-                    Multiplayer
+                    <translatableAttribute id="caption">Multiplayer</translatableAttribute>
+                    <translatableAttribute id="tooltip">Fight against one or more human players in a multiplayer game.</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         openMenu("submenuMultiplayer", (this.parent.size.top+this.size.top), (this.size.bottom-this.size.top), 2);
@@ -385 +400 @@
                     type="button"
                     size="4 100 100%-4 128"
                     tooltip_style="pgToolTip"
-                    tooltip="Game options and scenario design tools."
                 >
-                    Tools <![CDATA[&]]> Options
+                    <translatableAttribute id="caption">Tools &amp; Options</translatableAttribute>
+                    <translatableAttribute id="tooltip">Game options and scenario design tools.</translatableAttribute>
                     <action on="Press">
                         closeMenu();
-                        openMenu("submenuToolsAndOptions", (this.parent.size.top+this.size.top), (this.size.bottom-this.size.top), 2);
+                        openMenu("submenuToolsAndOptions", (this.parent.size.top+this.size.top), (this.size.bottom-this.size.top), 3);
                     </action>
                 </object>
 
@@ -400 +415 @@
                     type="button"
                     size="4 132 100%-4 160"
                     tooltip_style="pgToolTip"
-                    tooltip="Learn about the many civilizations featured in 0 A.D."
                 >
-                    History
+                    <translatableAttribute id="caption">History</translatableAttribute>
+                    <translatableAttribute id="tooltip">Learn about the many civilizations featured in 0 A.D.</translatableAttribute>
                     <action on="Press">
                         closeMenu();
                         <![CDATA[
@@ -417 +432 @@
                     style="StoneButtonFancy"
                     size="4 164 100%-4 192"
                     tooltip_style="pgToolTip"
-                    tooltip="Exit Game"
                 >
-                    Exit
-                    <action on="Press">
-                        closeMenu();
-                        <![CDATA[
-                            var btCaptions = ["Yes", "No"];
-                            var btCode = [exit, null];
-                            messageBox(400, 200, "Are you sure you want to quit 0 A.D.?", "Confirmation", 0, btCaptions, btCode);
-                        ]]>
-                    </action>
+                    <translatableAttribute id="caption">Exit</translatableAttribute>
+                    <translatableAttribute id="tooltip">Exit Game</translatableAttribute>
+                    <action on="Press">exitGamePressed();</action>
                 </object>
             </object>
 
@@ -445 +453 @@
                     size="8 8 100%-8 100%-36"
                                         ghost="true"
                 >
-[font="serif-bold-16"]Alpha XIV: Naukratis<!-- IMPORTANT: remember to update session/session.xml in sync with this -->[/font]
-
-WARNING: This is an early development version of the game. Many features have not been added yet.
-
-Get involved at: play0ad.com
+                    <!-- IMPORTANT: remember to update session/session.xml in sync with this: -->
+                    <attribute id="caption">
+                        <keep>[font="serif-bold-16"]</keep>
+                        <translate>Alpha XIV: Naukratis</translate>
+                        <keep>[/font]\n\n</keep>
+                        <translate>WARNING: This is an early development version of the game. Many features have not been added yet.</translate>
+                        <keep>\n\n</keep>
+                        <translate>Get involved at: play0ad.com</translate>
+                    </attribute>
                 </object>
 
                 <!-- FUNDRAISER -->
                 <object type="button"
                     style="StoneButton"
                     tooltip_style="pgToolTip"
-                    tooltip="Click to view fundraiser information."
                     size="8 100%-108 100%-8 100%-80"
                 >
-                    Fundraiser
+                    <translatableAttribute id="caption">Fundraiser</translatableAttribute>
+                    <translatableAttribute id="tooltip">Click to view fundraiser information.</translatableAttribute>
                     <action on="Press"><![CDATA[
                         closeMenu();
                         Engine.PushGuiPage("page_splashscreen.xml", { "page": "splashscreen" });
@@ -470 +482 @@
                 <object type="button"
                     style="StoneButton"
                     tooltip_style="pgToolTip"
-                    tooltip="Click to open play0ad.com in your web browser."
                     size="8 100%-72 50%-4 100%-44"
                 >
-                    Website
+                    <translatableAttribute id="caption">Website</translatableAttribute>
+                    <translatableAttribute id="tooltip">Click to open play0ad.com in your web browser.</translatableAttribute>
                     <action on="Press"><![CDATA[
                         var url = "http://play0ad.com/";
                         Engine.OpenURL(url);
@@ -484 +496 @@
                 <object type="button"
                     style="StoneButton"
                     tooltip_style="pgToolTip"
-                    tooltip="Click to open the 0 A.D. IRC chat in your browser. (#0ad on webchat.quakenet.org)"
                     size="50%+4 100%-72 100%-8 100%-44"
                 >
-                    Chat
+                    <translatableAttribute id="caption">Chat</translatableAttribute>
+                    <translatableAttribute id="tooltip">Click to open the 0 A.D. IRC chat in your browser. (#0ad on webchat.quakenet.org)</translatableAttribute>
                     <action on="Press"><![CDATA[
                         var url = "http://webchat.quakenet.org/?channels=0ad";
                         Engine.OpenURL(url);
@@ -498 +510 @@
                 <object type="button"
                     style="StoneButton"
                     tooltip_style="pgToolTip"
-                    tooltip="Click to visit 0 A.D. Trac to report a bug, crash, or error"
                     size="8 100%-36 100%-8 100%-8"
                 >
-                    Report a Bug
+                    <translatableAttribute id="caption">Report a Bug</translatableAttribute>
+                    <translatableAttribute id="tooltip">Click to visit 0 A.D. Trac to report a bug, crash, or error</translatableAttribute>
                     <action on="Press"><![CDATA[
                         var url = "http://trac.wildfiregames.com/wiki/ReportingErrors/";
                         Engine.OpenURL(url);
@@ -530 +542 @@
                         style="MediumTitleText"
                     ghost="true"
                     size="50%-128 32 50%+128 48"
-                >WILDFIRE GAMES</object>
+                >
+                    <translatableAttribute id="caption">WILDFIRE GAMES</translatableAttribute>
+                </object>
             </object>
 
             <!-- VERSION -->
@@ -540 +554 @@
                 ghost="true"
                 size="50%-128 100%-36 50%+128 100%"
             >
-                <action on="Load"><![CDATA[
-                    this.caption = "Build: " + buildTime(0) + " - " + buildTime(2);
-                ]]></action>
+                <action on="Load">
+                    this.caption = getBuildString();
+                </action>
             </object>
         </object>
     </object>

binaries/data/mods/public/gui/savedgames/load.js

@@ -5 +5 @@
     var savedGames = Engine.GetSavedGames();
     if (savedGames.length == 0)
     {
-        gameSelection.list = [ "No saved games found" ];
+        gameSelection.list = [translate("No saved games found")];
         gameSelection.selected = 0;
         getGUIObjectByName("loadGameButton").enabled = false;
         getGUIObjectByName("deleteGameButton").enabled = false;
@@ -32 +32 @@
     {
         // Probably the file wasn't found
         // Show error and refresh saved game list
-        error("Could not load saved game '"+gameID+"'");
+        error(sprintf(translate("Could not load saved game '%(id)s'"), { id: gameID }));
         init();
     }
     else
@@ -53 +53 @@
     var gameID = gameSelection.list_data[gameSelection.selected];
 
     // Ask for confirmation
-    var btCaptions = ["Yes", "No"];
+    var btCaptions = [translate("Yes"), translate("No")];
     var btCode = [function(){ reallyDeleteGame(gameID); }, null];
-    messageBox(500, 200, "\""+gameLabel+"\"\nSaved game will be permanently deleted, are you sure?", "DELETE", 0, btCaptions, btCode);
+    messageBox(500, 200, sprintf(translate("\"%(label)s\""), { label: gameLabel }) + "\n" + translate("Saved game will be permanently deleted, are you sure?"), translate("DELETE"), 0, btCaptions, btCode);
 }
 
 function reallyDeleteGame(gameID)
 {
     if (!Engine.DeleteSavedGame(gameID))
-        error("Could not delete saved game '"+gameID+"'");
+        error(sprintf(translate("Could not delete saved game '%(id)s'"), { id: gameID }));
 
     // Run init again to refresh saved game list
     init();

binaries/data/mods/public/gui/savedgames/load.xml

@@ -12 +12 @@
     <object type="image" style="StoneDialog" size="50%-300 50%-200 50%+300 50%+200">
 
         <object type="text" style="TitleText" size="50%-128 0%-16 50%+128 16">
-            Load Game
+            <translatableAttribute id="caption">Load Game</translatableAttribute>
         </object>
 
         <object name="gameSelection"
@@ -22 +22 @@
         </object>
 
         <object name="loadGameButton" type="button" size="0%+25 100%-60 33%+10 100%-32" style="StoneButton">
-            Load
+            <translatableAttribute id="caption">Load</translatableAttribute>
             <action on="Press">loadGame();</action>
         </object>
 
         <object name="deleteGameButton" type="button" size="33%+20 100%-60 66%-15 100%-32" style="StoneButton">
-            Delete
+            <translatableAttribute id="caption">Delete</translatableAttribute>
             <action on="Press">deleteGame();</action>
         </object>
 
         <object type="button" style="StoneButton" size="66%-5 100%-60 100%-25 100%-32">
-            Cancel
+            <translatableAttribute id="caption">Cancel</translatableAttribute>
             <action on="Press">Engine.PopGuiPage();</action>
         </object>
 

binaries/data/mods/public/gui/savedgames/save.js

@@ -30 +30 @@
     var savedGames = Engine.GetSavedGames();
     if (savedGames.length == 0)
     {
-        gameSelection.list = [ "No saved games found" ];
+        gameSelection.list = [translate("No saved games found")];
         gameSelection.selected = -1;
         return;
     }
@@ -59 +59 @@
     if (gameSelection.selected != -1)
     {
         // Ask for confirmation
-        var btCaptions = ["Yes", "No"];
+        var btCaptions = [translate("Yes"), translate("No")];
         var btCode = [function(){ reallySaveGame(name, desc, false); }, null];
-        messageBox(500, 200, "\""+gameLabel+"\"\nSaved game will be permanently overwritten, are you sure?", "OVERWRITE SAVE", 0, btCaptions, btCode);
+        messageBox(500, 200, sprintf(translate("\"%(label)s\""), { label: gameLabel }) + "\n" + translate("Saved game will be permanently overwritten, are you sure?"), translate("OVERWRITE SAVE"), 0, btCaptions, btCode);
     }
     else
         reallySaveGame(name, desc, true);
@@ -91 +91 @@
     var gameID = gameSelection.list_data[gameSelection.selected];
 
     // Ask for confirmation
-    var btCaptions = ["Yes", "No"];
+    var btCaptions = [translate("Yes"), translate("No")];
     var btCode = [function(){ reallyDeleteGame(gameID); }, null];
-    messageBox(500, 200, "\""+gameLabel+"\"\nSaved game will be permanently deleted, are you sure?", "DELETE", 0, btCaptions, btCode);
+    messageBox(500, 200, sprintf(translate("\"%(label)s\""), { label: gameLabel }) + "\n" + translate("Saved game will be permanently deleted, are you sure?"), translate("DELETE"), 0, btCaptions, btCode);
 }
 
 function reallyDeleteGame(gameID)
 {
     if (!Engine.DeleteSavedGame(gameID))
-        error("Could not delete saved game '"+gameID+"'");
+        error(sprintf(translate("Could not delete saved game '%(id)s'"), { id: gameID }));
 
     // Run init again to refresh saved game list
     init();

binaries/data/mods/public/gui/savedgames/save.xml

@@ -12 +12 @@
     <object type="image" style="StoneDialog" size="50%-300 50%-200 50%+300 50%+200">
         <object type="image" z="0" sprite="BackgroundTranslucent"/>
         <object type="text" style="TitleText" size="50%-128 0%-16 50%+128 16">
-            Save Game
+            <translatableAttribute id="caption">Save Game</translatableAttribute>
         </object>
 
         <object name="gameSelection"
@@ -25 +25 @@
             </action>
         </object>
 
-        <object size="24 100%-124 100%-24 100%-100" name="descLabel" type="text" style="LeftLabelText">Description:</object>
+        <object size="24 100%-124 100%-24 100%-100" name="descLabel" type="text" style="LeftLabelText">
+            <translatableAttribute id="caption">Description:</translatableAttribute>
+        </object>
 
         <object name="saveGameDesc" size="24 100%-96 100%-24 100%-72" type="input" style="StoneInput"/>
 
         <object name="saveButton" type="button" size="0%+25 100%-60 33%+10 100%-32" style="StoneButton">
-            Save
+            <translatableAttribute id="caption">Save</translatableAttribute>
             <action on="Press">saveGame();</action>
         </object>
 
         <object name="deleteGameButton" type="button" size="33%+20 100%-60 66%-15 100%-32" style="StoneButton">
-            Delete
+            <translatableAttribute id="caption">Delete</translatableAttribute>
             <action on="Press">deleteGame();</action>
         </object>
 
         <object type="button" style="StoneButton" size="66%-5 100%-60 100%-25 100%-32">
-            Cancel
+            <translatableAttribute id="caption">Cancel</translatableAttribute>
             <action on="Press">closeSave(true);</action>
         </object>
 

binaries/data/mods/public/gui/session/input.js

@@ -135 +135 @@
                     elevationBonus: placementSupport.attack.elevationBonus,
                 };
                 var averageRange = Engine.GuiInterfaceCall("GetAverageRangeForBuildings",cmd);
-                placementSupport.tooltipMessage = "Basic range: "+Math.round(cmd.range/4)+"\nAverage bonus range: "+Math.round((averageRange - cmd.range)/4);
+                placementSupport.tooltipMessage = sprintf(translate("Basic range: %(range)s"), { range: Math.round(cmd.range/4) }) + "\n" + sprintf(translate("Average bonus range: %(range)s"), { range: Math.round((averageRange - cmd.range)/4) });
             }
             return true;
         }
@@ -241 +241 @@
             data.command = "garrison";
             data.target = target;
             cursor = "action-garrison";
-            tooltip = "Current garrison: " + targetState.garrisonHolder.entities.length
-                + "/" + targetState.garrisonHolder.capacity;
+            tooltip = sprintf(translate("Current garrison: %(garrisoned)s/%(capacity)s"), {
+                garrisoned: targetState.garrisonHolder.entities.length,
+                capacity: targetState.garrisonHolder.capacity
+            });
             if (targetState.garrisonHolder.entities.length >= targetState.garrisonHolder.capacity)
                 tooltip = "[color=\"orange\"]" + tooltip + "[/color]";
         }
@@ -287 +289 @@
                 data.target = traderData.secondMarket;
                 data.source = traderData.firstMarket;
                 cursor = "action-setup-trade-route";
-                tooltip = "Right-click to establish a default route for new traders.";
+                tooltip = translate("Right-click to establish a default route for new traders.");
                 if (trader)
-                    tooltip += "\nGain (metal): " + getTradingTooltip(gain);
+                    tooltip += "\n" + sprintf(translate("Gain (metal): %(gain)s"), { gain: getTradingTooltip(gain) });
                 else // Foundation or cannot produce traders
-                    tooltip += "\nExpected gain (metal): " + getTradingTooltip(gain);
+                    tooltip += "\n" + sprintf(translate("Expected gain (metal): %(gain)s"), { gain: getTradingTooltip(gain) });
             }
         }
 
@@ -328 +330 @@
         case "garrison":
             if (hasClass(entState, "Unit") && targetState.garrisonHolder && (playerOwned || mutualAllyOwned))
             {
-                var tooltip = "Current garrison: " + targetState.garrisonHolder.entities.length
-                    + "/" + targetState.garrisonHolder.capacity;
+                var tooltip = sprintf(translate("Current garrison: %(garrisoned)s/%(capacity)s"), {
+                    garrisoned: targetState.garrisonHolder.entities.length,
+                    capacity: targetState.garrisonHolder.capacity
+                });
                 if (targetState.garrisonHolder.entities.length >= targetState.garrisonHolder.capacity)
                     tooltip = "[color=\"orange\"]" + tooltip + "[/color]";
                 var allowedClasses = targetState.garrisonHolder.allowedClasses;
@@ -353 +357 @@
                 switch (tradingDetails.type)
                 {
                 case "is first":
-                    tooltip = "Origin trade market.";
+                    tooltip = translate("Origin trade market.");
                     if (tradingDetails.hasBothMarkets)
-                        tooltip += "\nGain (" + tradingDetails.goods + "): " + getTradingTooltip(tradingDetails.gain);
+                        tooltip += "\n" + sprintf(translate("Gain (%(goods)s): %(gain)s"), {
+                            goods: tradingDetails.goods,
+                            gain: getTradingTooltip(tradingDetails.gain)
+                        });
                     else
-                        tooltip += "\nRight-click on another market to set it as a destination trade market."
+                        tooltip += "\n" + translate("Right-click on another market to set it as a destination trade market.")
                     break;
                 case "is second":
-                    tooltip = "Destination trade market.\nGain (" + tradingDetails.goods + "): " + getTradingTooltip(tradingDetails.gain);
+                    tooltip = translate("Destination trade market.") + "\n" + sprintf(translate("Gain (%(goods)s): %(gain)s"), {
+                        goods: tradingDetails.goods,
+                        gain: getTradingTooltip(tradingDetails.gain)
+                    });
                     break;
                 case "set first":
-                    tooltip = "Right-click to set as origin trade market";
+                    tooltip = translate("Right-click to set as origin trade market");
                     break;
                 case "set second":
-                    tooltip = "Right-click to set as destination trade market.\nGain (" + tradingDetails.goods + "): " + getTradingTooltip(tradingDetails.gain);
+                    tooltip = translate("Right-click to set as destination trade market.") + "\n" + sprintf(translate("Gain (%(goods)s): %(gain)s"), {
+                        goods: tradingDetails.goods,
+                        gain: getTradingTooltip(tradingDetails.gain)
+                    });
                     break;
                 }
                 return {"possible": true, "tooltip": tooltip};
@@ -542 +555 @@
 {
     if (placementSupport.mode !== "building")
     {
-        error("[tryPlaceBuilding] Called while in '"+placementSupport.mode+"' placement mode instead of 'building'");
+        error(sprintf(translate("[%(functionName)s] Called while in '%(mode)s' placement mode instead of 'building'"), {
+            functionName: "tryPlaceBuilding",
+            mode: placementSupport.mode
+        }));
         return false;
     }
 
@@ -583 +599 @@
 {
     if (placementSupport.mode !== "wall")
     {
-        error("[tryPlaceWall] Called while in '" + placementSupport.mode + "' placement mode; expected 'wall' mode");
+        error(sprintf(translate("[%(functionName)s] Called while in '%(mode)s' placement mode; expected 'wall' mode"), {
+            functionName: "tryPlaceWall",
+            mode: placementSupport.mode
+        }));
         return false;
     }
     
     var wallPlacementInfo = updateBuildingPlacementPreview(); // entities making up the wall (wall segments, towers, ...)
     if (!(wallPlacementInfo === false || typeof(wallPlacementInfo) === "object"))
     {
-        error("[tryPlaceWall] Unexpected return value from updateBuildingPlacementPreview: '" + uneval(placementInfo) + "'; expected either 'false' or 'object'");
+        error(sprintf(translate("[%(functionName)s] Unexpected return value from %(function2Name)s: '%(value)s'; expected either 'false' or 'object'"), {
+            functionName: "tryPlaceWall",
+            function2Name: "updateBuildingPlacementPreview",
+            value: uneval(placementInfo)
+        }));
         return false;
     }
     
@@ -922 +945 @@
                     }
                     else
                     {
-                        placementSupport.tooltipMessage = "Cannot build wall here!";
+                        placementSupport.tooltipMessage = translate("Cannot build wall here!");
                     }
                     
                     updateBuildingPlacementPreview();

binaries/data/mods/public/gui/session/menu.js

@@ -133 +133 @@
     closeMenu();
     closeOpenDialogs();
     pauseGame();
-    var btCaptions = ["Yes", "No"];
+    var btCaptions = [translate("Yes"), translate("No")];
     var btCode = [resignGame, resumeGame];
-    messageBox(400, 200, "Are you sure you want to resign?", "Confirmation", 0, btCaptions, btCode);
+    messageBox(400, 200, translate("Are you sure you want to resign?"), translate("Confirmation"), 0, btCaptions, btCode);
 }
 
 function exitMenuButton()
@@ -143 +143 @@
     closeMenu();
     closeOpenDialogs();
     pauseGame();
-    var btCaptions = ["Yes", "No"];
+    var btCaptions = [translate("Yes"), translate("No")];
     var btCode = [leaveGame, resumeGame];
-    messageBox(400, 200, "Are you sure you want to quit?", "Confirmation", 0, btCaptions, btCode);
+    messageBox(400, 200, translate("Are you sure you want to quit?"), translate("Confirmation"), 0, btCaptions, btCode);
 }
 
 function openDeleteDialog(selection)
@@ -158 +158 @@
         Engine.PostNetworkCommand({"type": "delete-entities", "entities": selection});
     };
 
-    var btCaptions = ["Yes", "No"];
+    var btCaptions = [translate("Yes"), translate("No")];
     var btCode = [deleteSelectedEntities, resumeGame];
 
-    messageBox(400, 200, "Destroy everything currently selected?", "Delete", 0, btCaptions, btCode);
+    messageBox(400, 200, translate("Destroy everything currently selected?"), translate("Delete"), 0, btCaptions, btCode);
 }
 
 // Menu functions
@@ -264 +264 @@
         getGUIObjectByName("diplomacyPlayerName["+(i-1)+"]").caption = "[color=\"" + playerColor + "\"]" + players[i].name + "[/color]";
         getGUIObjectByName("diplomacyPlayerCiv["+(i-1)+"]").caption = g_CivData[players[i].civ].Name;
 
-        getGUIObjectByName("diplomacyPlayerTeam["+(i-1)+"]").caption = (players[i].team < 0) ? "None" : players[i].team+1;
+        getGUIObjectByName("diplomacyPlayerTeam["+(i-1)+"]").caption = (players[i].team < 0) ? translateWithContext("team", "None") : players[i].team+1;
 
         if (i != we)
-            getGUIObjectByName("diplomacyPlayerTheirs["+(i-1)+"]").caption = (players[i].isAlly[we] ? "Ally" : (players[i].isNeutral[we] ? "Neutral" : "Enemy"));
+            getGUIObjectByName("diplomacyPlayerTheirs["+(i-1)+"]").caption = (players[i].isAlly[we] ? translate("Ally") : (players[i].isNeutral[we] ? translate("Neutral") : translate("Enemy")));
 
         // Don't display the options for ourself, or if we or the other player aren't active anymore
         if (i == we || players[we].state != "active" || players[i].state != "active")
@@ -328 +328 @@
             if (setting == "ally")
             {
                 if (players[we].isAlly[i])
-                    button.caption = "x";
+                    button.caption = translate("x");
                 else
                     button.caption = "";
             }
             else if (setting == "neutral")
             {
                 if (players[we].isNeutral[i])
-                    button.caption = "x";
+                    button.caption = translate("x");
                 else
                     button.caption = "";
             }
             else // "enemy"
             {
                 if (players[we].isEnemy[i])
-                    button.caption = "x";
+                    button.caption = translate("x");
                 else
                     button.caption = "";
             }
-            
             button.onpress = (function(e){ return function() { setDiplomacy(e) } })({"player": i, "to": setting});
             button.hidden = false;
         }
@@ -421 +420 @@
 function toggleDeveloperOverlay()
 {
     var devCommands = getGUIObjectByName("devCommands");
-    var text = devCommands.hidden ? "opened." : "closed.";
-    submitChatDirectly("The Developer Overlay was " + text);
+    if (devCommands.hidden)
+        submitChatDirectly(translate("The Developer Overlay was opened."));
+    else
+        submitChatDirectly(translate("The Developer Overlay was closed."));
     // Update the options dialog
     getGUIObjectByName("developerOverlayCheckbox").checked = devCommands.hidden;
     devCommands.hidden = !devCommands.hidden;
@@ -439 +440 @@
 function formatTributeTooltip(player, resource, amount)
 {
     var playerColor = player.color.r + " " + player.color.g + " " + player.color.b;
-    return "Tribute " + amount + " " + resource + " to [color=\"" + playerColor + "\"]" + player.name +
-        "[/color]. Shift-click to tribute " + (amount < 500 ? 500 : amount + 500) + ".";
+    return sprintf(translate("Tribute %(resourceAmount)s %(resourceType)s to %(playerName)s. Shift-click to tribute %(greaterAmount)s."), {
+        resourceAmount: amount,
+        resourceType: resource,
+        playerName: "[color=\"" + playerColor + "\"]" + player.name + "[/color]",
+        greaterAmount: (amount < 500 ? 500 : amount + 500)
+    });
 }

binaries/data/mods/public/gui/session/messages.js

@@ -19 +19 @@
     {
         var currentCheat = parseJSONData("simulation/data/cheats/"+fileName+".json");
         if (Object.keys(cheats).indexOf(currentCheat.Name) !== -1)
-            warn("Cheat name '"+currentCheat.Name+"' is already present");
+            warn(sprintf(translate("Cheat name '%(name)s' is already present"), { name: currentCheat.Name }));
         else
             cheats[currentCheat.Name] = currentCheat.Data;
     }
@@ -153 +153 @@
 // Messages
 function handleNetMessage(message)
 {
-    log("Net message: " + uneval(message));
+    log(sprintf(translate("Net message: %(message)s"), { message: uneval(message) }));
 
     switch (message.type)
     {
@@ -166 +166 @@
         switch (message.status)
         {
         case "waiting_for_players":
-            obj.caption = "Waiting for other players to connect...";
+            obj.caption = translate("Waiting for other players to connect...");
             obj.hidden = false;
             break;
         case "join_syncing":
-            obj.caption = "Synchronising gameplay with other players...";
+            obj.caption = translate("Synchronising gameplay with other players...");
             obj.hidden = false;
             break;
         case "active":
@@ -178 +178 @@
             obj.hidden = true;
             break;
         case "connected":
-            obj.caption = "Connected to the server.";
+            obj.caption = translate("Connected to the server.");
             obj.hidden = false;
             break;
         case "authenticated":
-            obj.caption = "Connection to the server has been authenticated.";
+            obj.caption = translate("Connection to the server has been authenticated.");
             obj.hidden = false;
             break;
         case "disconnected":
             g_Disconnected = true;
-            obj.caption = "Connection to the server has been lost.\n\nThe game has ended.";
+            obj.caption = translate("Connection to the server has been lost.") + "\n\n" + translate("The game has ended.");
             obj.hidden = false;
             break;
         default:
-            error("Unrecognised netstatus type "+message.status);
+            error(sprintf(translate("Unrecognised netstatus type %(netType)s"), { netType: message.status }));
             break;
         }
         break;
@@ -237 +237 @@
         break;
 
     default:
-        error("Unrecognised net message type "+message.type);
+        error(sprintf(translate("Unrecognised net message type %(messageType)s"), { messageType: message.type }));
     }
 }
 
@@ -319 +319 @@
 
     var playerColor, username;
 
-    // No prefix by default. May be set by parseChatCommands().
-    msg.prefix = "";
+    // No context by default. May be set by parseChatCommands().
+    msg.context = "";
 
     if (playerAssignments[msg.guid])
     {
@@ -344 +344 @@
     else
     {
         playerColor = "255 255 255";
-        username = "Unknown player";
+        username = translate("Unknown player");
     }
 
     var message = escapeText(msg.text);
@@ -354 +354 @@
     switch (msg.type)
     {
     case "connect":
-        formatted = "[color=\"" + playerColor + "\"]" + username + "[/color] has joined the game.";
+        formatted = sprintf(translate("%(player)s has joined the game."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
         break;
     case "disconnect":
-        formatted = "[color=\"" + playerColor + "\"]" + username + "[/color] has left the game.";
+        formatted = sprintf(translate("%(player)s has left the game."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
         break;
     case "defeat":
         // In singleplayer, the local player is "You". "You has" is incorrect.
-        var verb = (!g_IsNetworked && msg.player == Engine.GetPlayerID()) ? "have" : "has";
-        formatted = "[color=\"" + playerColor + "\"]" + username + "[/color] " + verb + " been defeated.";
+        if (!g_IsNetworked && msg.player == Engine.GetPlayerID())
+            formatted = translate("You have been defeated.");
+        else
+            formatted = sprintf(translate("%(player)s has been defeated."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
         break;
     case "diplomacy":
         var status = (msg.status == "ally" ? "allied" : (msg.status == "enemy" ? "at war" : "neutral"));
         if (msg.player == Engine.GetPlayerID())
         {
             [username, playerColor] = getUsernameAndColor(msg.player1);
-            formatted = "You are now "+status+" with [color=\"" + playerColor + "\"]"+username + "[/color].";
+            if (msg.status == "ally")
+                formatted = sprintf(translate("You are now allied with %(player)s."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
+            else if (msg.status == "enemy")
+                formatted = sprintf(translate("You are now at war with %(player)s."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
+            else // (msg.status == "neutral")
+                formatted = sprintf(translate("You are now neutral with %(player)s."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
         }
         else if (msg.player1 == Engine.GetPlayerID())
         {
-            [username, playerColor] = getUsernameAndColor(msg.player);
-            formatted = "[color=\"" + playerColor + "\"]" + username + "[/color] is now " + status + " with you."
+            [username, playerColor] = getUsernameAndColor(msg.player1);
+            if (msg.status == "ally")
+                formatted = sprintf(translate("%(player)s is now allied with you."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
+            else if (msg.status == "enemy")
+                formatted = sprintf(translate("%(player)s is now at war with you."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
+            else // (msg.status == "neutral")
+                formatted = sprintf(translate("%(player)s is now neutral with you."), { player: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
         }
         else // No need for other players to know of this.
             return;
@@ -393 +405 @@
         if (amounts.length > 1)
         {
             var lastAmount = amounts.pop();
-            amounts = amounts.join(", ") + " and " + lastAmount;
+            amounts = sprintf(translate("%(previousAmounts)s and %(lastAmount)s"), {
+                previousAmounts: amounts.join(translate(", ")),
+                lastAmount: lastAmount
+            });
         }
 
-        formatted = "[color=\"" + playerColor + "\"]" + username + "[/color] has sent you " + amounts + ".";
+        formatted = sprintf(translate("%(player)s has sent you %(amounts)s."), {
+            player: "[color=\"" + playerColor + "\"]" + username + "[/color]",
+            amounts: amounts
+        });
         break;
     case "attack":
         if (msg.player != Engine.GetPlayerID()) 
             return;
 
         [username, playerColor] = getUsernameAndColor(msg.attacker);
-        formatted = "You have been attacked by [color=\"" + playerColor + "\"]" + username + "[/color]!";
+        formatted = sprintf("You have been attacked by %(attacker)s!", { attacker: "[color=\"" + playerColor + "\"]" + username + "[/color]" });
         break;
     case "message":
         // May have been hidden by the 'team' command.
@@ -412 +430 @@
 
         if (msg.action)
         {
-            Engine.Console_Write(msg.prefix + "* " + username + " " + message);
-            formatted = msg.prefix + "* [color=\"" + playerColor + "\"]" + username + "[/color] " + message;
+            if (msg.context !== "")
+            {
+                Engine.Console_Write(sprintf(translate("(%(context)s) * %(user)s %(message)s"), {
+                    context: msg.context,
+                    user: username,
+                    message: message
+                }));
+                formatted = sprintf(translate("(%(context)s) * %(user)s %(message)s"), {
+                    context: msg.context,
+                    user: "[color=\"" + playerColor + "\"]" + username + "[/color]",
+                    message: message
+                });
+            }
+            else
+            {
+                Engine.Console_Write(sprintf(translate("* %(user)s %(message)s"), {
+                    user: username,
+                    message: message
+                }));
+                formatted = sprintf(translate("* %(user)s %(message)s"), {
+                    user: "[color=\"" + playerColor + "\"]" + username + "[/color]",
+                    message: message
+                });
+            }
         }
         else
         {
-            Engine.Console_Write(msg.prefix + "<" + username + "> " + message);
-            formatted = msg.prefix + "<[color=\"" + playerColor + "\"]" + username + "[/color]> " + message;
+            var userTag = sprintf(translate("<%(user)s>"), { user: username })
+            var formattedUserTag = sprintf(translate("<%(user)s>"), { user: "[color=\"" + playerColor + "\"]" + username + "[/color]" })
+            if (msg.context !== "")
+            {
+                Engine.Console_Write(sprintf(translate("(%(context)s) %(userTag)s %(message)s"), {
+                    context: msg.context,
+                    userTag: userTag,
+                    message: message
+                }));
+                formatted = sprintf(translate("(%(context)s) %(userTag)s %(message)s"), {
+                    context: msg.context,
+                    userTag: formattedUserTag,
+                    message: message
+                });
+            }
+            else
+            {
+                Engine.Console_Write(sprintf(translate("%(userTag)s %(message)s"), { userTag: userTag, message: message}));
+                formatted = sprintf(translate("%(userTag)s %(message)s"), { userTag: formattedUserTag, message: message});
+            }
         }
         break;
     default:
-        error("Invalid chat message '" + uneval(msg) + "'");
+        error(sprintf(translate("Invalid chat message '%(message)s'"), { message: uneval(msg) }));
         return;
     }
 
@@ -464 +522 @@
     {
     case "/all":
         // Resets values that 'team' or 'enemy' may have set.
-        msg.prefix = "";
+        msg.context = "";
         msg.hide = false;
         recurse = true;
         break;
@@ -475 +533 @@
             if (g_Players[Engine.GetPlayerID()].team != g_Players[sender].team)
                 msg.hide = true;
             else
-                msg.prefix = "(Team) ";
+                msg.context = translate("Team");
         }
         else
             msg.hide = true;
@@ -488 +546 @@
             if (g_Players[Engine.GetPlayerID()].team == g_Players[sender].team && sender != Engine.GetPlayerID())
                 msg.hide = true;
             else
-                msg.prefix = "(Enemy) ";
+                msg.context = translate("Enemy");
         }
         recurse = true;
         break;
@@ -508 +566 @@
         var playerName = g_Players[Engine.GetPlayerID()].name;
         if (matched.length && (matched == playerName || sender == Engine.GetPlayerID()))
         {
-            msg.prefix = "(Private) ";
+            msg.context = translate("Private");
             msg.text = trimmed.substr(matched.length + 1);
             msg.hide = false; // Might override team message hiding.
             return;

binaries/data/mods/public/gui/session/selection_details.js

@@ -10 +10 @@
     getGUIObjectByName("detailsAreaSingle").hidden = true;
 }
 
+function getLocalizedResourceName(resourceCode)
+{
+    switch(resourceCode)
+    {
+        case "food": return translate("Food");
+        case "meat": return translate("Meat");
+        case "metal": return translate("Metal");
+        case "ore": return translate("Ore");
+        case "rock": return translate("Rock");
+        case "ruins": return translate("Ruins");
+        case "stone": return translate("Stone");
+        case "treasure": return translate("Treasure");
+        case "tree": return translate("Tree");
+        case "wood": return translate("Wood");
+        case "fruit": return translate("Fruit");
+        case "grain": return translate("Grain");
+        case "fish": return translate("Fish");
+        default:
+            warn(sprintf(translate("Internationalization: Unexpected resource type found with code ‘%(resource)s’. This resource type must be internationalized."), { resource: resourceCode }));
+            return resourceCode; // It should never get here.
+    }
+}
+
+function getResourceTypeDisplayName(resourceType)
+{
+    var resourceCode = resourceType["generic"];
+    var displayName = "";
+    if (resourceCode == "treasure")
+        displayName = getLocalizedResourceName(resourceType["specific"]);
+    else
+        displayName = getLocalizedResourceName(resourceCode);
+    return displayName;
+}
+
 // Fills out information that most entities have
 function displaySingle(entState, template)
 {
@@ -18 +52 @@
     var genericName = template.name.generic != template.name.specific? template.name.generic : "";
     // If packed, add that to the generic name (reduces template clutter)
     if (genericName && template.pack && template.pack.state == "packed")
-        genericName += " -- Packed";
+        genericName = sprintf(translate("%(genericName)s — Packed"), { genericName: genericName });
     var playerState = g_Players[entState.player];
 
     var civName = g_CivData[playerState.civ].Name;
@@ -30 +64 @@
     // Indicate disconnected players by prefixing their name
     if (g_Players[entState.player].offline)
     {
-        playerName = "[OFFLINE] " + playerName;
+        playerName = sprintf(translate("[OFFLINE] %(player)s"), { player: playerName });
     }
 
     // Rank
     if (entState.identity && entState.identity.rank && entState.identity.classes)
-    {
-        getGUIObjectByName("rankIcon").tooltip = entState.identity.rank + " Rank";
-        getGUIObjectByName("rankIcon").sprite = getRankIconSprite(entState);                    
-        getGUIObjectByName("rankIcon").hidden = false;
-    }
+    {
+        getGUIObjectByName("rankIcon").tooltip = sprintf(translate("%(rank)s Rank"), { rank: entState.identity.rank });
+        getGUIObjectByName("rankIcon").sprite = getRankIconSprite(entState);
+        getGUIObjectByName("rankIcon").hidden = false;
+    }
     else
     {
         getGUIObjectByName("rankIcon").hidden = true;
-        getGUIObjectByName("rankIcon").tooltip = "";
-    }
-                                
-    // Hitpoints
-    if (entState.hitpoints)
+        getGUIObjectByName("rankIcon").tooltip = "";
+    }
+                                
+    // Hitpoints
+    if (entState.hitpoints)
     {
         var unitHealthBar = getGUIObjectByName("healthBar");
         var healthSize = unitHealthBar.size;
         healthSize.rright = 100*Math.max(0, Math.min(1, entState.hitpoints / entState.maxHitpoints));
         unitHealthBar.size = healthSize;
 
-        var hitpoints = Math.ceil(entState.hitpoints) + " / " + entState.maxHitpoints;
-        getGUIObjectByName("healthStats").caption = hitpoints;
+        getGUIObjectByName("healthStats").caption = sprintf(translate("%(hitpoints)s / %(maxHitpoints)s"), {
+            hitpoints: Math.ceil(entState.hitpoints),
+            maxHitpoints: entState.maxHitpoints
+        });
         getGUIObjectByName("healthSection").hidden = false;
     }
     else
     {
-        getGUIObjectByName("healthSection").hidden = true;
-    }
-    
-    // TODO: Stamina
-    var player = Engine.GetPlayerID();
+        getGUIObjectByName("healthSection").hidden = true;
+    }
+    
+    // TODO: Stamina
+    var player = Engine.GetPlayerID();
     if (entState.stamina && (entState.player == player || g_DevSettings.controlAll))
-    {
         getGUIObjectByName("staminaSection").hidden = false;
-    }
     else
-    {
         getGUIObjectByName("staminaSection").hidden = true;
-    }
 
     // Experience
     if (entState.promotion)
     {
         var experienceBar = getGUIObjectByName("experienceBar");
         var experienceSize = experienceBar.size;
-        experienceSize.rtop = 100 - (100 * Math.max(0, Math.min(1, 1.0 * +entState.promotion.curr / +entState.promotion.req)));
-        experienceBar.size = experienceSize;
- 
-        var experience = "[font=\"serif-bold-13\"]Experience: [/font]" + Math.floor(entState.promotion.curr);
-        if (entState.promotion.curr < entState.promotion.req)
-            experience += " / " + entState.promotion.req;
-        getGUIObjectByName("experience").tooltip = experience;
+        experienceSize.rtop = 100 - (100 * Math.max(0, Math.min(1, 1.0 * +entState.promotion.curr / +entState.promotion.req)));
+        experienceBar.size = experienceSize;
+ 
+        var experience = "[font=\"serif-bold-13\"]Experience: [/font]" + Math.floor(entState.promotion.curr);
+        if (entState.promotion.curr < entState.promotion.req)
+            getGUIObjectByName("experience").tooltip = sprintf(translate("%(experience)s %(current)s / %(required)s"), {
+                experience: "[font=\"serif-bold-13\"]" + translate("Experience:") + "[/font]",
+                current: Math.floor(entState.promotion.curr),
+                required: entState.promotion.req
+            });
+        else
+            getGUIObjectByName("experience").tooltip = sprintf(translate("%(experience)s %(current)s"), {
+                experience: "[font=\"serif-bold-13\"]" + translate("Experience:") + "[/font]",
+                current: Math.floor(entState.promotion.curr)
+            });
         getGUIObjectByName("experience").hidden = false;
     }
     else
@@ -96 +136 @@
     // Resource stats
     if (entState.resourceSupply)
     {
-        var resources = entState.resourceSupply.isInfinite ? "\u221E" :  // Infinity symbol
-                        Math.ceil(+entState.resourceSupply.amount) + " / " + entState.resourceSupply.max;
-        var resourceType = entState.resourceSupply.type["generic"];
-        if (resourceType == "treasure")
-            resourceType = entState.resourceSupply.type["specific"];
+        var resources = entState.resourceSupply.isInfinite ? translate("∞") :  // Infinity symbol
+                        sprintf(translate("%(amount)s / %(max)s"), { amount: Math.ceil(+entState.resourceSupply.amount), max: entState.resourceSupply.max });
+        var resourceType = getResourceTypeDisplayName(entState.resourceSupply.type);
 
         var unitResourceBar = getGUIObjectByName("resourceBar");
         var resourceSize = unitResourceBar.size;
@@ -108 +146 @@
         resourceSize.rright = entState.resourceSupply.isInfinite ? 100 :
                         100 * Math.max(0, Math.min(1, +entState.resourceSupply.amount / +entState.resourceSupply.max));
         unitResourceBar.size = resourceSize;
-        getGUIObjectByName("resourceLabel").caption = toTitleCase(resourceType) + ":";
+        getGUIObjectByName("resourceLabel").caption = sprintf(translate("%(resource)s:"), { resource: resourceType });
         getGUIObjectByName("resourceStats").caption = resources;
 
         if (entState.hitpoints)
@@ -120 +158 @@
     }
     else
     {
-        getGUIObjectByName("resourceSection").hidden = true;
-    }
-
-    // Resource carrying
+        getGUIObjectByName("resourceSection").hidden = true;
+    }
+
+    // Resource carrying
     if (entState.resourceCarrying && entState.resourceCarrying.length)
     {
         // We should only be carrying one resource type at once, so just display the first
@@ -132 +170 @@
         getGUIObjectByName("resourceCarryingIcon").hidden = false;
         getGUIObjectByName("resourceCarryingText").hidden = false;
         getGUIObjectByName("resourceCarryingIcon").sprite = "stretched:session/icons/resources/"+carried.type+".png";
-        getGUIObjectByName("resourceCarryingText").caption = carried.amount + " / " + carried.max;
+        getGUIObjectByName("resourceCarryingText").caption = sprintf(translate("%(amount)s / %(max)s"), { amount: carried.amount, max: carried.max });
         getGUIObjectByName("resourceCarryingIcon").tooltip = "";
     }
     // Use the same indicators for traders
@@ -147 +185 @@
         if (entState.trader.goods.amount.market2Gain)
             totalGain += entState.trader.goods.amount.market2Gain;
         getGUIObjectByName("resourceCarryingText").caption = totalGain;
-        getGUIObjectByName("resourceCarryingIcon").tooltip = "Gain: " + getTradingTooltip(entState.trader.goods.amount);
-    }
-    // And for number of workers
-    else if (entState.foundation)
-    {
-        getGUIObjectByName("resourceCarryingIcon").hidden = false;
-        getGUIObjectByName("resourceCarryingText").hidden = false;
+        getGUIObjectByName("resourceCarryingIcon").tooltip = sprintf(translate("Gain: %(amount)s"), { amount: getTradingTooltip(entState.trader.goods.amount) });
+    }
+    // And for number of workers
+    else if (entState.foundation)
+    {
+        getGUIObjectByName("resourceCarryingIcon").hidden = false;
+        getGUIObjectByName("resourceCarryingText").hidden = false;
         getGUIObjectByName("resourceCarryingIcon").sprite = "stretched:session/icons/repair.png";
         getGUIObjectByName("resourceCarryingText").caption = entState.foundation.numBuilders + "    ";
-        getGUIObjectByName("resourceCarryingIcon").tooltip = "Number of builders";
-    }
-    else if (entState.resourceSupply && (!entState.resourceSupply.killBeforeGather || !entState.hitpoints))
-    {
-        getGUIObjectByName("resourceCarryingIcon").hidden = false;
-        getGUIObjectByName("resourceCarryingText").hidden = false;
+        getGUIObjectByName("resourceCarryingIcon").tooltip = translate("Number of builders");
+    }
+    else if (entState.resourceSupply && (!entState.resourceSupply.killBeforeGather || !entState.hitpoints))
+    {
+        getGUIObjectByName("resourceCarryingIcon").hidden = false;
+        getGUIObjectByName("resourceCarryingText").hidden = false;
         getGUIObjectByName("resourceCarryingIcon").sprite = "stretched:session/icons/repair.png";
-        getGUIObjectByName("resourceCarryingText").caption = entState.resourceSupply.gatherers.length + " / " + entState.resourceSupply.maxGatherers + "    ";
-        getGUIObjectByName("resourceCarryingIcon").tooltip = "Current/max gatherers";
-    }
-    else
+        getGUIObjectByName("resourceCarryingText").caption = sprintf(translate("%(amount)s / %(max)s"), { amount: entState.resourceSupply.gatherers.length, max: entState.resourceSupply.maxGatherers }) + "    ";
+        getGUIObjectByName("resourceCarryingIcon").tooltip = translate("Current/max gatherers");
+    }
+    else
     {
         getGUIObjectByName("resourceCarryingIcon").hidden = true;
         getGUIObjectByName("resourceCarryingText").hidden = true;
@@ -174 +212 @@
 
     // Set Player details
     getGUIObjectByName("specific").caption = specificName;
-    getGUIObjectByName("player").caption = playerName;
-    getGUIObjectByName("playerColorBackground").sprite = "colour: " + playerColor;
-    
-    if (genericName)
-    {
-        getGUIObjectByName("generic").caption = "(" + genericName + ")";
+    getGUIObjectByName("player").caption = playerName;
+    getGUIObjectByName("playerColorBackground").sprite = "colour: " + playerColor;
+    
+    if (genericName)
+    {
+        getGUIObjectByName("generic").caption = sprintf(translate("(%(genericName)s)"), { genericName: genericName });
     }
     else
     {
@@ -209 +247 @@
         getGUIObjectByName("icon").sprite = "bkFillBlack";
     }
 
+    var armorLabel = "[font=\"serif-bold-13\"]" + translate("Armor:") + "[/font]"
+    var armorString = sprintf(translate("%(label)s %(details)s"), { label: armorLabel, details: armorTypeDetails(entState.armour) });
+
     // Attack and Armor
-    var type = "";
-    var attack = "[font=\"serif-bold-13\"]"+type+"Attack:[/font] " + damageTypeDetails(entState.attack);
     if (entState.attack)
     {
-        type = entState.attack.type + " ";
-
-        // Show max attack range if ranged attack, also convert to tiles (4m per tile)
+        var attack;
+        var label = "[font=\"serif-bold-13\"]" + getAttackTypeLabel(entState.attack.type) + "[/font]"
         if (entState.attack.type == "Ranged")
         {
-            var realRange = entState.attack.elevationAdaptedRange;
-            var range =  entState.attack.maxRange;
-            attack += ", [font=\"serif-bold-13\"]Range:[/font] " + 
-                Math.round(range/4);
-
-            if (Math.round((realRange - range)/4) > 0)
-            { 
-                attack += " (+" + Math.round((realRange - range)/4) + ")";
-            }
-            else if (Math.round((realRange - range)/4) < 0)
-            {
-                attack += " (" + Math.round((realRange - range)/4) + ")";
-            } // don't show when it's 0
-
-        }
-    }
-    
-    getGUIObjectByName("attackAndArmorStats").tooltip = attack + "\n[font=\"serif-bold-13\"]Armor:[/font] " + armorTypeDetails(entState.armour);
-
+            // Show max attack range if ranged attack, also convert to tiles (4m per tile)
+            var realRange = entState.attack.elevationAdaptedRange;
+            var range =  entState.attack.maxRange;
+            var rangeLabel = "[font=\"serif-bold-13\"]" + translate("Range:") + "[/font]"
+            var relativeRange = Math.round((realRange - range)/4);
+
+            if (relativeRange > 0)
+                attack = sprintf(translate("%(label)s %(details)s, %(rangeLabel)s %(range)s (%(relative)s)"), {
+                    label: label,
+                    details: damageTypeDetails(entState.attack),
+                    rangeLabel: rangeLabel,
+                    range: Math.round(range/4),
+                    relative: "+" + relativeRange
+                });
+            else if (relativeRange < 0)
+                attack = sprintf(translate("%(label)s %(details)s, %(rangeLabel)s %(range)s"), {
+                    label: label,
+                    details: damageTypeDetails(entState.attack),
+                    rangeLabel: rangeLabel,
+                    range: Math.round(range/4),
+                    relative: relativeRange
+                });
+            else // don't show when it's 0
+                attack = sprintf(translate("%(label)s %(details)s, %(rangeLabel)s %(range)s"), {
+                    label: label,
+                    details: damageTypeDetails(entState.attack),
+                    rangeLabel: rangeLabel,
+                    range: Math.round(range/4)
+                });
+        }
+        else
+        {
+            attack = sprintf(translate("%(label)s %(details)s"), {
+                label: label,
+                details: damageTypeDetails(entState.attack)
+            });
+        }
+        getGUIObjectByName("attackAndArmorStats").tooltip = attack + "\n" + armorString;
+    }
+    else
+    {
+        getGUIObjectByName("attackAndArmorStats").tooltip = armorString;
+    }
+
     // Icon Tooltip
     var iconTooltip = "";
 
@@ -274 +337 @@
     }
 
     if (averageHealth > 0)
-    {
-        var unitHealthBar = getGUIObjectByName("healthBarMultiple");
-        var healthSize = unitHealthBar.size;    
-        healthSize.rtop = 100-100*Math.max(0, Math.min(1, averageHealth / maxHealth));
-        unitHealthBar.size = healthSize;
+    {
+        var unitHealthBar = getGUIObjectByName("healthBarMultiple");
+        var healthSize = unitHealthBar.size;    
+        healthSize.rtop = 100-100*Math.max(0, Math.min(1, averageHealth / maxHealth));
+        unitHealthBar.size = healthSize;
 
-        var hitpoints = "[font=\"serif-bold-13\"]Hitpoints [/font]" + averageHealth + " / " + maxHealth;
+        var hitpointsLabel = "[font=\"serif-bold-13\"]" + translate("Hitpoints:") + "[/font]"
+        var hitpoints = sprintf(translate("%(label)s %(current)s / %(max)s"), { label: hitpointsLabel, current: averageHealth, max: maxHealth });
         var healthMultiple = getGUIObjectByName("healthMultiple");
         healthMultiple.tooltip = hitpoints;
         healthMultiple.hidden = false;
     }
     else
     {
-        getGUIObjectByName("healthMultiple").hidden = true;
-    }
-    
-    // TODO: Stamina
-    // getGUIObjectByName("staminaBarMultiple");
+        getGUIObjectByName("healthMultiple").hidden = true;
+    }
+    
+    // TODO: Stamina
+    // getGUIObjectByName("staminaBarMultiple");
 
     getGUIObjectByName("numberOfUnits").caption = selection.length;
 
@@ -307 +371 @@
     var detailsPanel = getGUIObjectByName("selectionDetails");
     var commandsPanel = getGUIObjectByName("unitCommands");
 
-    g_Selection.update();
-    var selection = g_Selection.toList();
-    
-    if (selection.length == 0)
-    {
+    g_Selection.update();
+    var selection = g_Selection.toList();
+    
+    if (selection.length == 0)
+    {
         getGUIObjectByName("detailsAreaMultiple").hidden = true;
-        getGUIObjectByName("detailsAreaSingle").hidden = true;
-        hideUnitCommands();
-    
-        supplementalDetailsPanel.hidden = true;
-        detailsPanel.hidden = true;
+        getGUIObjectByName("detailsAreaSingle").hidden = true;
+        hideUnitCommands();
+    
+        supplementalDetailsPanel.hidden = true;
+        detailsPanel.hidden = true;
         commandsPanel.hidden = true;
         return;
     }

binaries/data/mods/public/gui/session/session.js

@@ -9 +9 @@
 var g_GameSpeeds = {};
 var g_CurrentSpeed;
 
-var g_PlayerAssignments = { "local": { "name": "You", "player": 1 } };
+var g_PlayerAssignments = { "local": { "name": translate("You"), "player": 1 } };
 
 // Cache dev-mode settings that are frequently or widely used
 var g_DevSettings = {
@@ -61 +61 @@
 
 // Cache TemplateData
 var g_TemplateData = {}; // {id:template}
+var g_TemplateDataWithoutLocalization = {};
 
 
 function GetTemplateData(templateName)
@@ -68 +69 @@
     if (!(templateName in g_TemplateData))
     {
         var template = Engine.GuiInterfaceCall("GetTemplateData", templateName);
+        translateObjectKeys(template, ["specific", "generic", "tooltip"]);
         g_TemplateData[templateName] = template;
     }
 
     return g_TemplateData[templateName];
 }
 
+function GetTemplateDataWithoutLocalization(templateName)
+{
+    if (!(templateName in g_TemplateDataWithoutLocalization))
+    {
+        var template = Engine.GuiInterfaceCall("GetTemplateData", templateName);
+        g_TemplateDataWithoutLocalization[templateName] = template;
+    }
+
+    return g_TemplateDataWithoutLocalization[templateName];
+}
+
 // Cache TechnologyData
 var g_TechnologyData = {}; // {id:template}
 
@@ -82 +95 @@
     if (!(technologyName in g_TechnologyData))
     {
         var template = Engine.GuiInterfaceCall("GetTechnologyData", technologyName);
+        translateObjectKeys(template, ["specific", "generic", "description", "tooltip", "requirementsTooltip"]);
         g_TechnologyData[technologyName] = template;
     }
 
@@ -112 +126 @@
 
     // Cache civ data
     g_CivData = loadCivData();
-    g_CivData["gaia"] = { "Code": "gaia", "Name": "Gaia" };
+    g_CivData["gaia"] = { "Code": "gaia", "Name": translate("Gaia") };
 
     g_GameSpeeds = initGameSpeeds();
     g_CurrentSpeed = Engine.GetSimRate();
@@ -218 +232 @@
     var gameResult;
     if (g_Disconnected)
     {
-        gameResult = "You have been disconnected."
+        gameResult = translate("You have been disconnected.");
     }
     else if (playerState.state == "won")
     {
-        gameResult = "You have won the battle!";
+        gameResult = translate("You have won the battle!");
     }
     else if (playerState.state == "defeated")
     {
-        gameResult = "You have been defeated...";
+        gameResult = translate("You have been defeated...");
     }
     else // "active"
     {
-        gameResult = "You have abandoned the game.";
+        gameResult = translate("You have abandoned the game.");
 
         // Tell other players that we have given up and been defeated
         Engine.PostNetworkCommand({
@@ -359 +373 @@
             if (Engine.IsAtlasRunning())
             {
                 // If we're in Atlas, we can't leave the game
-                var btCaptions = ["OK"];
+                var btCaptions = [translate("OK")];
                 var btCode = [null];
-                var message = "Press OK to continue";
+                var message = translate("Press OK to continue");
             }
             else
             {
-                var btCaptions = ["Yes", "No"];
+                var btCaptions = [translate("Yes"), translate("No")];
                 var btCode = [leaveGame, null];
-                var message = "Do you want to quit?";
+                var message = translate("Do you want to quit?");
             }
-            messageBox(400, 200, message, "DEFEATED!", 0, btCaptions, btCode);
+            messageBox(400, 200, message, translate("DEFEATED!"), 0, btCaptions, btCode);
         }
         else if (playerState.state == "won")
         {
@@ -385 +399 @@
             if (Engine.IsAtlasRunning())
             {
                 // If we're in Atlas, we can't leave the game
-                var btCaptions = ["OK"];
+                var btCaptions = [translate("OK")];
                 var btCode = [null];
-                var message = "Press OK to continue";
+                var message = translate("Press OK to continue");
             }
             else
             {
-                var btCaptions = ["Yes", "No"];
+                var btCaptions = [translate("Yes"), translate("No")];
                 var btCode = [leaveGame, null];
-                var message = "Do you want to quit?";
+                var message = translate("Do you want to quit?");
             }
-            messageBox(400, 200, message, "VICTORIOUS!", 0, btCaptions, btCode);
+            messageBox(400, 200, message, translate("VICTORIOUS!"), 0, btCaptions, btCode);
         }
     }
 }
@@ -476 +490 @@
 
     // Setup tooltip
     var tooltip = "[font=\"serif-bold-16\"]" + template.name.specific + "[/font]";
-    tooltip += "\n[font=\"serif-bold-13\"]Health:[/font] " + heroState.hitpoints + "/" + heroState.maxHitpoints;
-    tooltip += "\n[font=\"serif-bold-13\"]" + (heroState.attack ? heroState.attack.type + " " : "")
-               + "Attack:[/font] " + damageTypeDetails(heroState.attack);
-    // Show max attack range if ranged attack, also convert to tiles (4m per tile)
+    var healthLabel = "[font=\"serif-bold-13\"]" + translate("Health:") + "[/font]";
+    tooltip += "\n" + sprintf(translate("%(label)s %(current)s / %(max)s"), { label: healthLabel, current: heroState.hitpoints, max: heroState.maxHitpoints });
+    var attackLabel = "[font=\"serif-bold-13\"]" + getAttackTypeLabel(heroState.attack.type) + "[/font]";
     if (heroState.attack && heroState.attack.type == "Ranged")
-        tooltip += ", [font=\"serif-bold-13\"]Range:[/font] " + Math.round(heroState.attack.maxRange/4);
+        // Show max attack range if ranged attack, also convert to tiles (4m per tile)
+        tooltip += "\n" + sprintf(
+            translate("%(attackLabel)s %(details)s, %(rangeLabel)s %(range)s"),
+            {
+                attackLabel: attackLabel,
+                details: damageTypeDetails(heroState.attack),
+                rangeLabel: "[font=\"serif-bold-13\"]" + translate("Range:") + "[/font]",
+                range: Math.round(heroState.attack.maxRange/4)
+            }
+        );
+    else
+        tooltip += "\n" + sprintf(translate("%(label)s %(details)s"), { label: attackLabel, details: damageTypeDetails(heroState.armour) });
 
-    tooltip += "\n[font=\"serif-bold-13\"]Armor:[/font] " + damageTypeDetails(heroState.armour);
+    var armorLabel = "[font=\"serif-bold-13\"]" + translate("Armor:") + "[/font]";
+    tooltip += "\n" + sprintf(translate("%(label)s %(details)s"), { label: armorLabel, details: damageTypeDetails(heroState.attack) });
     tooltip += "\n" + template.tooltip;
 
     heroButton.tooltip = tooltip;
@@ -629 +654 @@
 function updateTimeElapsedCounter()
 {
     var simState = GetSimState();
-    var speed = g_CurrentSpeed != 1.0 ? " (" + g_CurrentSpeed + "x)" : "";
     var timeElapsedCounter = getGUIObjectByName("timeElapsedCounter");
-    timeElapsedCounter.caption = timeToString(simState.timeElapsed) + speed;
+    if (g_CurrentSpeed != 1.0)
+        timeElapsedCounter.caption = sprintf(translate("%(time)s (%(speed)sx)"), { time: timeToString(simState.timeElapsed), speed: Engine.formatDecimalNumberIntoString(g_CurrentSpeed) });
+    else
+        timeElapsedCounter.caption = timeToString(simState.timeElapsed);
 }
 
 // Toggles the display of status bars for all of the player's entities.
@@ -671 +698 @@
             break;
 
         default:
-            Engine.Console_Write("Unrecognized ambient type: " + type);
+            Engine.Console_Write(sprintf(translate("Unrecognized ambient type: %(ambientType)s"), { ambientType: type }));
             break;
     }
 }
@@ -685 +712 @@
         currentAmbient = null;
     }
 }
+
+function getBuildString()
+{
+    return sprintf(translate("Build: %(buildDate)s (%(revision)s)"), { buildDate: Engine.GetBuildTimestamp(0), revision: Engine.GetBuildTimestamp(2) });
+}
+
+function showTimeWarpMessageBox()
+{
+    messageBox(500, 250, translate("Note: time warp mode is a developer option, and not intended for use over long periods of time. Using it incorrectly may cause the game to run out of memory or crash."), translate("Time warp mode"), 2);
+}

binaries/data/mods/public/gui/session/session.xml

@@ -251 +251 @@
         toggleDeveloperOverlay();
         </action>
 
-        <object size="0 0 100%-18 16" type="text" style="devCommandsText">Control all units</object>
+        <object size="0 0 100%-18 16" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Control all units</translatableAttribute>
+        </object>
         <object size="100%-16 0 100% 16" type="checkbox" name="devControlAll" style="StoneCrossBox">
         <action on="Press">
             g_DevSettings.controlAll = this.checked;
@@ -259 +261 @@
         </action>
         </object>
 
-        <object size="0 16 100%-18 32" type="text" style="devCommandsText">Change perspective</object>
+        <object size="0 16 100%-18 32" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Change perspective</translatableAttribute>
+        </object>
         <object size="100%-16 16 100% 32" type="checkbox" style="StoneCrossBox">
         <action on="Press">getGUIObjectByName("viewPlayer").hidden = !this.checked;</action>
         </object>
 
-        <object size="0 32 100%-18 48" type="text" style="devCommandsText">Display selection state</object>
+        <object size="0 32 100%-18 48" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Display selection state</translatableAttribute>
+        </object>
         <object size="100%-16 32 100% 48" type="checkbox" name="devDisplayState" style="StoneCrossBox"/>
 
-        <object size="0 48 100%-18 64" type="text" style="devCommandsText">Pathfinder overlay</object>
+        <object size="0 48 100%-18 64" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Pathfinder overlay</translatableAttribute>
+        </object>
         <object size="100%-16 48 100% 64" type="checkbox" style="StoneCrossBox">
         <action on="Press">Engine.GuiInterfaceCall("SetPathfinderDebugOverlay", this.checked);</action>
         </object>
 
-        <object size="0 64 100%-18 80" type="text" style="devCommandsText">Obstruction overlay</object>
+        <object size="0 64 100%-18 80" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Obstruction overlay</translatableAttribute>
+        </object>
         <object size="100%-16 64 100% 80" type="checkbox" style="StoneCrossBox">
         <action on="Press">Engine.GuiInterfaceCall("SetObstructionDebugOverlay", this.checked);</action>
         </object>
 
-        <object size="0 80 100%-18 96" type="text" style="devCommandsText">Unit motion overlay</object>
+        <object size="0 80 100%-18 96" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Unit motion overlay</translatableAttribute>
+        </object>
         <object size="100%-16 80 100% 96" type="checkbox" style="StoneCrossBox">
         <action on="Press">g_Selection.SetMotionDebugOverlay(this.checked);</action>
         </object>
 
-        <object size="0 96 100%-18 112" type="text" style="devCommandsText">Range overlay</object>
+        <object size="0 96 100%-18 112" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Range overlay</translatableAttribute>
+        </object>
         <object size="100%-16 96 100% 112" type="checkbox" style="StoneCrossBox">
         <action on="Press">Engine.GuiInterfaceCall("SetRangeDebugOverlay", this.checked);</action>
         </object>
 
-        <object size="0 112 100%-18 128" type="text" style="devCommandsText">Bounding box overlay</object>
+        <object size="0 112 100%-18 128" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Bounding box overlay</translatableAttribute>
+        </object>
         <object size="100%-16 112 100% 128" type="checkbox" style="StoneCrossBox">
         <action on="Press">Engine.SetBoundingBoxDebugOverlay(this.checked);</action>
         </object>
 
-        <object size="0 128 100%-18 144" type="text" style="devCommandsText">Restrict camera</object>
+        <object size="0 128 100%-18 144" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Restrict camera</translatableAttribute>
+        </object>
         <object size="100%-16 128 100% 144" type="checkbox" style="StoneCrossBox" checked="true">
         <action on="Press">Engine.GameView_SetConstrainCameraEnabled(this.checked);</action>
         </object>
 
-        <object size="0 144 100%-18 160" type="text" style="devCommandsText">Reveal map</object>
+        <object size="0 144 100%-18 160" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Reveal map</translatableAttribute>
+        </object>
         <object size="100%-16 144 100% 160" type="checkbox" name="devCommandsRevealMap" style="StoneCrossBox">
         <action on="Press">Engine.PostNetworkCommand({"type": "reveal-map", "enable": this.checked});</action>
         </object>
 
-        <object size="0 160 100%-18 176" type="text" style="devCommandsText">Enable time warp</object>
+        <object size="0 160 100%-18 176" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Enable time warp</translatableAttribute>
+        </object>
         <object size="100%-16 160 100% 176" type="checkbox" name="devTimeWarp" style="StoneCrossBox">
         <action on="Press">
         if (this.checked)
-          messageBox(500, 250, "Note: time warp mode is a developer option, and not intended\nfor use over long periods of time. Using it incorrectly may\ncause the game to run out of memory or crash.", "Time warp mode", 2);
+          showTimeWarpMessageBox();
         Engine.EnableTimeWarpRecording(this.checked ? 10 : 0);</action>
         </object>
 
-        <object size="0 176 100%-18 192" type="text" style="devCommandsText">Promote selected units</object>
+        <object size="0 176 100%-18 192" type="text" style="devCommandsText">
+            <translatableAttribute id="caption">Promote selected units</translatableAttribute>
+        </object>
         <object size="100%-16 176 100% 192" type="button" style="StoneCrossBox">
         <action on="Press">Engine.PostNetworkCommand({"type": "promote", "entities": g_Selection.toList()});</action>
         </object>
@@ -335 +359 @@
         z="0"
     >
         <object size="0 0 100% 100%" type="image" sprite="devCommandsBackground" ghost="true" z="0"/>
-        <object size="50%-128 50%-20 50%+128 50%+20" type="text" style="PauseText" ghost="true" z="0">Game Paused</object>
-        <object size="50%-128 50%+20 50%+128 50%+30" type="text" style="PauseMessageText" ghost="true" z="0">Click to Resume Game</object>
+        <object size="50%-128 50%-20 50%+128 50%+20" type="text" style="PauseText" ghost="true" z="0">
+            <translatableAttribute id="caption">Game Paused</translatableAttribute>
+        </object>
+        <object size="50%-128 50%+20 50%+128 50%+30" type="text" style="PauseMessageText" ghost="true" z="0">
+            <translatableAttribute id="caption">Click to Resume Game</translatableAttribute>
+        </object>
         <action on="Press">togglePause();</action>
     </object>
 
@@ -363 +391 @@
         </object>
 
         <object size="16 100%-40 30%+16 100%-12" type="button" style="StoneButton">
-        Send
-        <action on="Press">submitChatInput();</action>
+            <translatableAttribute id="caption">Send</translatableAttribute>
+            <action on="Press">submitChatInput();</action>
         </object>
 
         <object size="30%+24 100%-40 60%+24 100%-12" type="button" style="StoneButton">
-        Cancel
-        <action on="Press">closeChat();</action>
+            <translatableAttribute id="caption">Cancel</translatableAttribute>
+            <action on="Press">closeChat();</action>
         </object>
         <object name="toggleTeamChat" size="60%+32 100%-34 60%+48 100%-6" type="checkbox" style="StoneCrossBox"/>
         <object size="60%+48 100%-40 100% 100%-12" type="text"  style="LeftLabelText">
@@ -386 +414 @@
         hidden="true"
         sprite="StoneDialog"
     >
-        <object type="text" style="TitleText" size="50%-96 -16 50%+96 16">Diplomacy</object>
+        <object type="text" style="TitleText" size="50%-96 -16 50%+96 16">
+            <translatableAttribute id="caption">Diplomacy</translatableAttribute>
+        </object>
 
         <object name="diplomacyHeader" size="32 32 100%-32 64">
-            <object name="diplomacyHeaderName" size="0 0 150 100%" type="text" style="chatPanel" ghost="true" caption="Name"/>
-            <object name="diplomacyHeaderCiv" size="150 0 250 100%" type="text" style="chatPanel" ghost="true" caption="Civilization"/>
-            <object name="diplomacyHeaderTeam" size="250 0 300 100%" type="text" style="chatPanel" ghost="true" caption="Team"/>
-            <object name="diplomacyHeaderTheirs" size="300 0 360 100%" type="text" style="chatPanel" ghost="true" caption="Theirs"/>
-            <object name="diplomacyHeaderAlly" size="100%-180 0 100%-160 100%" type="text" style="chatPanel" caption="A" tooltip="Ally" tooltip_style="sessionToolTipBold"/>
-            <object name="diplomacyHeaderNeutral" size="100%-160 0 100%-140 100%" type="text" style="chatPanel" caption="N" tooltip="Neutral" tooltip_style="sessionToolTipBold"/>
-            <object name="diplomacyHeaderEnemy" size="100%-140 0 100%-120 100%" type="text" style="chatPanel" caption="E" tooltip="Enemy" tooltip_style="sessionToolTipBold"/>
-            <object name="diplomacyHeaderTribute" size="100%-110 0 100% 100%" type="text" style="chatPanel" caption="Tribute"/>
+            <object name="diplomacyHeaderName" size="0 0 150 100%" type="text" style="chatPanel" ghost="true">
+                <translatableAttribute id="caption">Name</translatableAttribute>
+            </object>
+            <object name="diplomacyHeaderCiv" size="150 0 250 100%" type="text" style="chatPanel" ghost="true">
+                <translatableAttribute id="caption">Civilization</translatableAttribute>
+            </object>
+            <object name="diplomacyHeaderTeam" size="250 0 300 100%" type="text" style="chatPanel" ghost="true">
+                <translatableAttribute id="caption">Team</translatableAttribute>
+            </object>
+            <object name="diplomacyHeaderTheirs" size="300 0 360 100%" type="text" style="chatPanel" ghost="true">
+                <translatableAttribute id="caption">Theirs</translatableAttribute>
+            </object>
+            <object name="diplomacyHeaderAlly" size="100%-180 0 100%-160 100%" type="text" style="chatPanel" tooltip_style="sessionToolTipBold">
+                <translatableAttribute id="caption">A</translatableAttribute>
+                <translatableAttribute id="tooltip">Ally</translatableAttribute>
+            </object>
+            <object name="diplomacyHeaderNeutral" size="100%-160 0 100%-140 100%" type="text" style="chatPanel" tooltip_style="sessionToolTipBold">
+                <translatableAttribute id="caption">N</translatableAttribute>
+                <translatableAttribute id="tooltip">Neutral</translatableAttribute>
+            </object>
+            <object name="diplomacyHeaderEnemy" size="100%-140 0 100%-120 100%" type="text" style="chatPanel" tooltip_style="sessionToolTipBold">
+                <translatableAttribute id="caption">E</translatableAttribute>
+                <translatableAttribute id="tooltip">Enemy</translatableAttribute>
+            </object>
+            <object name="diplomacyHeaderTribute" size="100%-110 0 100% 100%" type="text" style="chatPanel">
+                <translatableAttribute id="caption">Tribute</translatableAttribute>
+            </object>
         </object>
 
         <object size="32 64 100%-32 384">
@@ -445 +494 @@
             hidden="true"
             z="200"
             >
-            <object type="text" style="TitleText" size="50%-96 -16 50%+96 16">Settings</object>
+            <object type="text" style="TitleText" size="50%-96 -16 50%+96 16">
+                <translatableAttribute id="caption">Settings</translatableAttribute>
+            </object>
             
             <object style="TranslucentPanelThinBorder"
                 type="image"
                 size="32 32 100%-32 100%-70"
                 >
                 <!-- Settings / shadows -->
-                <object size="0 10 100%-80 35" type="text" style="RightLabelText" ghost="true">Enable Shadows</object>
+                <object size="0 10 100%-80 35" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Enable Shadows</translatableAttribute>
+                </object>
                 <object name="shadowsCheckbox" size="100%-56 15 100%-30 40" type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetShadowsEnabled();</action>
                     <action on="Press">Engine.Renderer_SetShadowsEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Shadow PCF -->
-                <object size="0 35 100%-80 60" type="text" style="RightLabelText" ghost="true">Enable Shadow Filtering</object>
+                <object size="0 35 100%-80 60" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Enable Shadow Filtering</translatableAttribute>
+                </object>
                 <object name="shadowPCFCheckbox" size="100%-56 40 100%-30 65" type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetShadowPCFEnabled();</action>
                     <action on="Press">Engine.Renderer_SetShadowPCFEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Water Normals -->
-                <object size="0 60 100%-80 85" type="text" style="RightLabelText" ghost="true">Water - HQ Waviness</object>
+                <object size="0 60 100%-80 85" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Water - HQ Waviness</translatableAttribute>
+                </object>
                 <object name="waterNormalCheckox" size="100%-56 65 100%-30 90"  type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetWaterNormalEnabled();</action>
                     <action on="Press">Engine.Renderer_SetWaterNormalEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Real Depth -->
-                <object size="0 85 100%-80 110" type="text" style="RightLabelText" ghost="true">Water - Use Actual Depth</object>
+                <object size="0 85 100%-80 110" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Water - Use Actual Depth</translatableAttribute>
+                </object>
                 <object name="waterRealDepthCheckbox" size="100%-56 90 100%-30 115"  type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetWaterRealDepthEnabled();</action>
                     <action on="Press">Engine.Renderer_SetWaterRealDepthEnabled(this.checked);</action>
                 </object>
 
                 <!-- Settings / Reflection -->
-                <object size="0 110 100%-80 135" type="text" style="RightLabelText" ghost="true">Water - Enable Reflections</object>
+                <object size="0 110 100%-80 135" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Water - Enable Reflections</translatableAttribute>
+                </object>
                 <object name="waterReflectionCheckbox" size="100%-56 115 100%-30 140"  type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetWaterReflectionEnabled();</action>
                     <action on="Press">Engine.Renderer_SetWaterReflectionEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Refraction -->
-                <object size="0 135 100%-80 160" type="text" style="RightLabelText" ghost="true">Water - Enable Refraction</object>
+                <object size="0 135 100%-80 160" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Water - Enable Refraction</translatableAttribute>
+                </object>
                 <object name="waterRefractionCheckbox" size="100%-56 140 100%-30 165"  type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetWaterRefractionEnabled();</action>
                     <action on="Press">Engine.Renderer_SetWaterRefractionEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Foam -->
-                <object size="0 160 100%-80 185" type="text" style="RightLabelText" ghost="true">Water - Enable Shore Foam</object>
+                <object size="0 160 100%-80 185" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Water - Enable Shore Foam</translatableAttribute>
+                </object>
                 <object name="waterFoamCheckbox" size="100%-56 165 100%-30 190"  type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetWaterFoamEnabled();</action>
                     <action on="Press">Engine.Renderer_SetWaterFoamEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Waves -->
-                <object size="0 185 100%-80 210" type="text" style="RightLabelText" ghost="true">Water - Enable Shore Waves</object>
+                <object size="0 185 100%-80 210" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Water - Enable Shore Waves</translatableAttribute>
+                </object>
                 <object name="waterCoastalWavesCheckbox" size="100%-56 190 100%-30 215"  type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetWaterCoastalWavesEnabled();</action>
                     <action on="Press">Engine.Renderer_SetWaterCoastalWavesEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Shadows -->
-                <object size="0 210 100%-80 235" type="text" style="RightLabelText" ghost="true">Water - Use Surface Shadows</object>
+                <object size="0 210 100%-80 235" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Water - Use Surface Shadows</translatableAttribute>
+                </object>
                 <object name="waterShadowsCheckbox" size="100%-56 215 100%-30 240"  type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">if (Engine.Renderer_GetWaterShadowEnabled()) this.checked = true; else this.checked = false;</action>
                     <action on="Press">Engine.Renderer_SetWaterShadowEnabled(this.checked);</action>
                 </object>
 
                 <!-- Settings / Particles -->
-                <object size="0 235 100%-80 260" type="text" style="RightLabelText" ghost="true">Enable Particles</object>
+                <object size="0 235 100%-80 260" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Enable Particles</translatableAttribute>
+                </object>
                 <object name="particlesCheckbox" size="100%-56 240 100%-30 265" type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetParticlesEnabled();</action>
                     <action on="Press">Engine.Renderer_SetParticlesEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Unit Silhouettes -->
-                <object size="0 260 100%-80 285" type="text" style="RightLabelText" ghost="true">Enable Unit Silhouettes</object>
+                <object size="0 260 100%-80 285" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Enable Unit Silhouettes</translatableAttribute>
+                </object>
                 <object name="silhouettesCheckbox" size="100%-56 265 100%-30 290" type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Load">this.checked = Engine.Renderer_GetSilhouettesEnabled();</action>
                     <action on="Press">Engine.Renderer_SetSilhouettesEnabled(this.checked);</action>
                 </object>
                 
                 <!-- Settings / Music-->
-                <object size="0 285 100%-80 310" type="text" style="RightLabelText" ghost="true">Enable Music</object>
+                <object size="0 285 100%-80 310" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Enable Music</translatableAttribute>
+                </object>
                 <object name="musicCheckbox" size="100%-56 290 100%-30 315" type="checkbox" style="StoneCrossBox" checked="true">
                     <action on="Press">if (this.checked) global.music.start(); else global.music.stop();</action>
                 </object>
                 
                 <!-- Settings / Dev Overlay -->
-                <object size="0 310 100%-80 335" type="text" style="RightLabelText" ghost="true">Developer Overlay</object>
+                <object size="0 310 100%-80 335" type="text" style="RightLabelText" ghost="true">
+                    <translatableAttribute id="caption">Developer Overlay</translatableAttribute>
+                </object>
                 <object name="developerOverlayCheckbox" size="100%-56 315 100%-30 340" type="checkbox" style="StoneCrossBox" checked="false">
                     <action on="Press">toggleDeveloperOverlay();</action>
                 </object>
@@ -567 +644 @@
         size="10 0 45% 100%"
         >
         <!-- Food -->
-        <object size="0 0 90 100%" type="image" style="resourceCounter" tooltip="Food" tooltip_style="sessionToolTipBold">
+        <object size="0 0 90 100%" type="image" style="resourceCounter" tooltip_style="sessionToolTipBold">
+            <translatableAttribute id="tooltip">Food</translatableAttribute>
             <object size="0 -4 40 36" type="image" sprite="stretched:session/icons/resources/food.png" ghost="true"/>
             <object size="32 0 100% 100%-2" type="text" style="resourceText" name="resourceFood"/>
         </object>
 
         <!-- Wood -->
-        <object size="90 0 180 100%" type="image" style="resourceCounter" tooltip="Wood" tooltip_style="sessionToolTipBold">
+        <object size="90 0 180 100%" type="image" style="resourceCounter" tooltip_style="sessionToolTipBold">
+            <translatableAttribute id="tooltip">Wood</translatableAttribute>
             <object size="0 -4 40 36" type="image" sprite="stretched:session/icons/resources/wood.png" ghost="true"/>
             <object size="32 0 100% 100%-2" type="text" style="resourceText" name="resourceWood"/>
         </object>
 
         <!-- Stone -->
-        <object size="180 0 270 100%" type="image" style="resourceCounter" tooltip="Stone" tooltip_style="sessionToolTipBold">
+        <object size="180 0 270 100%" type="image" style="resourceCounter" tooltip_style="sessionToolTipBold">
+            <translatableAttribute id="tooltip">Stone</translatableAttribute>
             <object size="0 -4 40 36" type="image" sprite="stretched:session/icons/resources/stone.png" ghost="true"/>
             <object size="32 0 100% 100%-2" type="text" style="resourceText" name="resourceStone"/>
         </object>
 
         <!-- Metal -->
-        <object size="270 0 360 100%"  type="image" style="resourceCounter" tooltip="Metal" tooltip_style="sessionToolTipBold">
+        <object size="270 0 360 100%"  type="image" style="resourceCounter" tooltip_style="sessionToolTipBold">
+            <translatableAttribute id="tooltip">Metal</translatableAttribute>
             <object size="0 -4 40 36" type="image" sprite="stretched:session/icons/resources/metal.png" ghost="true"/>
             <object size="32 0 100% 100%-2" type="text" style="resourceText" name="resourceMetal"/>
         </object>
 
         <!-- Population -->
-        <object size="360 0 450 100%" type="image" style="resourceCounter" tooltip="Population (current / limit)" tooltip_style="sessionToolTipBold">
+        <object size="360 0 450 100%" type="image" style="resourceCounter" tooltip_style="sessionToolTipBold">
+            <translatableAttribute id="tooltip">Population (current / limit)</translatableAttribute>
             <object size="0 -4 40 34" type="image" sprite="stretched:session/icons/resources/population.png" ghost="true"/>
             <object size="32 0 100% 100%-2" type="text" style="resourceText" name="resourcePop"/>
         </object>
@@ -603 +685 @@
         <object size="50%-48 -26 50%+48 70" name="civIcon" type="image" tooltip_style="sessionToolTipBold"/>
 
         <!-- Switch the view perspective to another player's (largely for AI development) -->
-        <object size="50%+50 5 50%+150 100%-5" name="viewPlayer" type="dropdown" hidden="true" style="StoneDropDown" tooltip_style="sessionToolTipBold" tooltip="Choose player to view">
-        <action on="SelectionChange">selectViewPlayer(this.selected);</action>
+        <object size="50%+50 5 50%+150 100%-5" name="viewPlayer" type="dropdown" hidden="true" style="StoneDropDown" tooltip_style="sessionToolTipBold">
+            <translatableAttribute id="tooltip">Choose player to view</translatableAttribute>
+            <action on="SelectionChange">selectViewPlayer(this.selected);</action>
         </object>
 
         <!-- ================================  ================================ -->
@@ -619 +702 @@
 
         <!-- Displays Alpha name and number -->
         <object size="50%+48 0 100%-226 100%" name="alphaLabel" type="text" style="CenteredLabelText" text_valign="top" ghost="true">
-        ALPHA XIV : Naukratis<!-- IMPORTANT: remember to update pregame/mainmenu.xml in sync with this -->
+            <!-- IMPORTANT: remember to update pregame/mainmenu.xml in sync with this: -->
+            <translatableAttribute id="caption">ALPHA XIV : Naukratis</translatableAttribute>
 
         <!-- Displays build date and revision number-->
         <object size="50%-128 0 50%+128 100%-2" name="buildTimeLabel" type="text" style="BuildNameText" ghost="true">
-            <action on="Load">this.caption = buildTime(0) + " (" + buildTime(2) + ")"</action>
+            <action on="Load">this.caption = getBuildString()</action>
         </object>
         </object>
 
@@ -635 +719 @@
         size="100%-226 4 100%-198 32"
         style="iconButton"
         tooltip_style="sessionToolTip"
-        tooltip="Game speed"
-        >
+        >
+            <translatableAttribute id="tooltip">Game speed</translatableAttribute>
             <object size="5 5 100%-5 100%-5" type="image" sprite="stretched:session/icons/resources/time_small.png" ghost="true"/>
             <action on="Press">
                 toggleGameSpeed();
             </action>
         </object>
 
-        <object size="100%-348 40 100%-198 65" name="gameSpeed" type="dropdown" buffer_zone="5" style="StoneDropDown" hidden="true" tooltip="Choose game speed" tooltip_style="sessionToolTip"/>
+        <object size="100%-348 40 100%-198 65" name="gameSpeed" type="dropdown" buffer_zone="5" style="StoneDropDown" hidden="true" tooltip_style="sessionToolTip">
+            <translatableAttribute id="tooltip">Choose game speed</translatableAttribute>
+        </object>
+
         
         <!-- ================================  ================================ -->
         <!-- Diplomacy Button -->
@@ -653 +740 @@
         size="100%-194 4 100%-166 32"
         style="iconButton"
         tooltip_style="sessionToolTip"
-        tooltip="Diplomacy"
-        >
+        >
+            <translatableAttribute id="tooltip">Diplomacy</translatableAttribute>
         <!-- TODO make the button less ugly -->
         <object size="0 0 100% 100%" name="diplomacyButtonImage" type="image" sprite="stretched:session/icons/diplomacy.png" ghost="true"/>
         <action on="Press">
@@ -677 +764 @@
         them on top of the main menu button -->
         <object size="0 -4 100% 0" type="image" sprite="horizontalThinBorder" ghost="true"/>
 
-        <object size="50%-32 50%-16 50%+32 50%+16" type="image" sprite="menuButton" ghost="true">MENU</object>
+        <object size="50%-32 50%-16 50%+32 50%+16" type="image" sprite="menuButton" ghost="true">
+            <translatableAttribute id="caption">MENU</translatableAttribute>
+        </object>
         <action on="Press">
             toggleMenu();
         </action>
@@ -702 +791 @@
             size="0 0 100% 28"
             tooltip_style="sessionToolTip"
         >
-            Settings
+            <translatableAttribute id="caption">Settings</translatableAttribute>
             <action on="Press">settingsMenuButton();</action>
         </object>
 
@@ -714 +803 @@
             size="0 32 100% 60"
             tooltip_style="sessionToolTip"
         >
-            Save
+            <translatableAttribute id="caption">Save</translatableAttribute>
             <action on="Press">
             openSave();
             </action>
@@ -727 +816 @@
             size="0 64 100% 92"
             tooltip_style="sessionToolTip"
         >
-            Chat
+            <translatableAttribute id="caption">Chat</translatableAttribute>
             <action on="Press">chatMenuButton();</action>
         </object>
 
@@ -738 +827 @@
             size="0 96 100% 124"
             tooltip_style="sessionToolTip"
         >
-            Resign
+            <translatableAttribute id="caption">Resign</translatableAttribute>
             <action on="Press">resignMenuButton();</action>
         </object>
 
@@ -749 +838 @@
             size="0 128 100% 156"
             tooltip_style="sessionToolTip"
         >
-            Exit
+            <translatableAttribute id="caption">Exit</translatableAttribute>
             <action on="Press">exitMenuButton();</action>
         </object>
 
@@ -760 +849 @@
             size="0 160 100% 188"
             tooltip_style="sessionToolTip"
         >
-            <object name="pauseButtonText" type="text" style="CenteredButtonText" ghost="true">Pause</object>
+            <object name="pauseButtonText" type="text" style="CenteredButtonText" ghost="true">
+                <translatableAttribute id="caption">Pause</translatableAttribute>
+            </object>
             <action on="Press">togglePause();</action>
         </object>
 
@@ -771 +862 @@
             size="0 192 100% 220"
             tooltip_style="sessionToolTip"
         >
-            Manual
+            <translatableAttribute id="caption">Manual</translatableAttribute>
             <action on="Press">openManual();</action>
         </object>
         </object>
@@ -795 +886 @@
         size="0 36 50 86"
     >
         <object name="unitHeroButton" size="0 0 50 50" type="button" hidden="false" style="iconButton" 
-            tooltip_style="sessionToolTip" tooltip="Attack and Armor">
+            tooltip_style="sessionToolTip">
+            <translatableAttribute id="tooltip">Attack and Armor</translatableAttribute>
             <object name="unitHeroImage" size="5 5 100%-5 100%-5" type="image" ghost="true"/>
         </object>
     </object>
@@ -808 +900 @@
         size="0% 50%-216 0%+36 50%+144"
     >
         <repeat count="10">
-        <object name="unitGroupButton[n]" size="0 0 36 36" type="button" hidden="false" style="iconButton" tooltip_style="sessionToolTipBottomBold"
-            tooltip="Click to select grouped units.">
+        <object name="unitGroupButton[n]" size="0 0 36 36" type="button" hidden="false" style="iconButton" tooltip_style="sessionToolTipBottomBold">
+            <translatableAttribute id="tooltip">Click to select grouped units.</translatableAttribute>
             <object name="unitGroupIcon[n]" size="3 3 33 33" type="image" sprite="groupsIcon" ghost="true"/>
             <object name="unitGroupLabel[n]" type="text" style="largeCenteredOutlinedText" ghost="true"/>
         </object>
@@ -859 +951 @@
             <object type="button"
                 style="iconButton"
                 tooltip_style="sessionToolTip"
-                tooltip="Find idle worker"
                 hotkey="selection.idleworker"
             >
+                <translatableAttribute id="tooltip">Find idle worker</translatableAttribute>
             <!-- TODO: should highlight the button if there's non-zero idle workers -->
             <object size="0 0 100% 100%" type="image" sprite="idleWorker" ghost="true" />
             <action on="Press">findIdleUnit(["Female", "Trade", "FishingBoat", "CitizenSoldier", "Healer"]);</action>
@@ -904 +996 @@
             size="6 36 100% 100%"
             hidden="true"
         >
-            <object ghost="true" style="resourceText" type="text" size="0 0 100% 20">Exchange resources:</object>
+            <object ghost="true" style="resourceText" type="text" size="0 0 100% 20">
+                <translatableAttribute id="tooltip">Exchange resources:</translatableAttribute>
+            </object>
             <object size="0 32 100% 78">
             <repeat count="4">
                 <object name="unitBarterSellButton[n]" style="iconButton" type="button" size="0 0 46 46" tooltip_style="sessionToolTipBottomBold">
@@ -961 +1055 @@
             <object size="0 8 100% 60" type="image" sprite="edgedPanelShader">
                 <!-- Health bar -->
                 <object size="88 0 100% 24" name="healthSection">
-                <object size="0 0 100% 16" name="healthLabel" type="text" style="StatsTextLeft" ghost="true">Health:</object>
+                <object size="0 0 100% 16" name="healthLabel" type="text" style="StatsTextLeft" ghost="true">
+                    <translatableAttribute id="tooltip">Health:</translatableAttribute>
+                </object>
                 <object size="0 0 100% 16" name="healthStats" type="text" style="StatsTextRight" ghost="true"/>
                 <object size="1 16 100% 23" name="health" type="image">
                     <object type="image" sprite="barBorder" ghost="true" size="-1 -1 100%+1 100%+1"/>
@@ -973 +1069 @@
 
                 <!-- Stamina bar -->
                 <object size="88 28 100% 52" name="staminaSection">
-                <object size="0 0 100% 16" name="staminaLabel" type="text" style="StatsTextLeft" ghost="true">Stamina:</object>
+                <object size="0 0 100% 16" name="staminaLabel" type="text" style="StatsTextLeft" ghost="true">
+                    <translatableAttribute id="tooltip">Stamina:</translatableAttribute>
+                </object>
                 <object size="0 0 100% 16" name="staminaStats" type="text" style="StatsTextRight" ghost="true"/>
                 <object size="1 16 100% 23" name="stamina" type="image">
                     <object type="image" sprite="barBorder" ghost="true" size="-1 -1 100%+1 100%+1"/>
@@ -998 +1096 @@
             
             <object size="0 60 100% 96" type="image" sprite="edgedPanelShader">
                 <!-- Attack and Armor -->
-                <object size="90 -2 126 34" name="attackAndArmorStats" type="image" sprite="stretched:session/icons/stances/defensive.png" tooltip="Attack and Armor" tooltip_style="sessionToolTip"/>
+                <object size="90 -2 126 34" name="attackAndArmorStats" type="image" sprite="stretched:session/icons/stances/defensive.png" tooltip_style="sessionToolTip">
+                    <translatableAttribute id="tooltip">Attack and Armor</translatableAttribute>
+                </object>
 
                 <!-- Resource carrying icon/counter -->
                 <!-- Used also for number of gatherers/builders -->
@@ -1011 +1111 @@
                 <object size="1 1 100%-1 100%-1" type="image" name="icon" ghost="true"/>
             
                 <!-- Experience bar -->
-                <object size="2 2 6 100%-2" type="image" name="experience" tooltip="Experience" tooltip_style="sessionToolTip">
-                <object type="image" sprite="barBorder" ghost="true" size="-1 -1 100%+1 100%+1"/>
-                <object type="image" sprite="experienceBackground" ghost="true"/>
-                <object type="image" sprite="experienceForeground" ghost="true" name="experienceBar"/>
-                <object type="image" sprite="statsBarShaderVertical" ghost="true"/>
+                <object size="2 2 6 100%-2" type="image" name="experience" tooltip_style="sessionToolTip">
+                    <translatableAttribute id="tooltip">Experience</translatableAttribute>
+                    <object type="image" sprite="barBorder" ghost="true" size="-1 -1 100%+1 100%+1"/>
+                    <object type="image" sprite="experienceBackground" ghost="true"/>
+                    <object type="image" sprite="experienceForeground" ghost="true" name="experienceBar"/>
+                    <object type="image" sprite="statsBarShaderVertical" ghost="true"/>
                 </object>
             
-                <object z="20" size="4 4 20 20" name="rankIcon" type="image" tooltip="Rank" tooltip_style="sessionToolTip"/>
+                <object z="20" size="4 4 20 20" name="rankIcon" type="image" tooltip_style="sessionToolTip">
+                    <translatableAttribute id="tooltip">Rank</translatableAttribute>
+                </object>
             </object>
             </object>
             
@@ -1076 +1179 @@
             <!-- Stats Bars -->
             <object size= "100%-38 50 100%-18 100%-44" type="image" tooltip_style="sessionToolTip">
             <!-- Health bar -->
-            <object size="4 0 11 100%" type="image" name="healthMultiple" tooltip="Hitpoints" tooltip_style="sessionToolTip">
+            <object size="4 0 11 100%" type="image" name="healthMultiple" tooltip_style="sessionToolTip">
+                <translatableAttribute id="tooltip">Hitpoints</translatableAttribute>
                 <object type="image" sprite="barBorder" ghost="true" size="-1 -1 100%+1 100%+1"/>
                 <object type="image" sprite="healthBackground" ghost="true"/>
                 <object type="image" sprite="healthForeground" ghost="true" name="healthBarMultiple"/>
@@ -1084 +1188 @@
             </object>
 
             <!-- Stamina bar -->
-            <object size="15 0 22 100%" type="image" name="staminaMultiple" tooltip="Stamina" tooltip_style="sessionToolTipBold">
+            <object size="15 0 22 100%" type="image" name="staminaMultiple" tooltip_style="sessionToolTipBold">
+                <translatableAttribute id="tooltip">Stamina</translatableAttribute>
                 <object type="image" sprite="barBorder" ghost="true" size="-1 -1 100%+1 100%+1"/>
                 <object type="image" sprite="staminaBackground" ghost="true"/>
                 <object type="image" sprite="staminaForeground" ghost="true" name="staminaBarMultiple"/>
@@ -1250 +1355 @@
         size="50%-84 50%+128 50%+84 50%+160"
         tooltip_style="sessionToolTip"
     >
-        <object size="0 0 100% 100%" type="text" style="CenteredButtonText" name="disconnectedExitButtonText" ghost="true">Return to Main Menu</object>
+        <object size="0 0 100% 100%" type="text" style="CenteredButtonText" name="disconnectedExitButtonText" ghost="true">
+            <translatableAttribute id="caption">Return to Main Menu</translatableAttribute>
+        </object>
         <action on="Press">leaveGame()</action>
     </object>
 

binaries/data/mods/public/gui/session/unit_commands.js

@@ -27 +27 @@
 const BARTER_ACTIONS = ["Sell", "Buy"];
 
 // Gate constants
-const GATE_ACTIONS = ["Lock", "Unlock"];
+const GATE_ACTIONS = ["lock", "unlock"];
 
 // The number of currently visible buttons (used to optimise showing/hiding)
 var g_unitPanelButtons = {"Selection": 0, "Queue": 0, "Formation": 0, "Garrison": 0, "Training": 0, "Research": 0, "Barter": 0, "Trading": 0, "Construction": 0, "Command": 0, "Stance": 0, "Gate": 0, "Pack": 0};
@@ -146 +146 @@
 {
     if (trainEntLimit == undefined)
         return "";
-    var text = "\n\nCurrent Count: " + trainEntCount + ", Limit: " + trainEntLimit + ".";
+    var text = "\n\n" + sprintf(translate("Current Count: %(count)s, Limit: %(limit)s."), { count: trainEntCount, limit: trainEntLimit });
     if (trainEntCount >= trainEntLimit)
         text = "[color=\"red\"]" + text + "[/color]";
     return text;
@@ -174 +174 @@
     if (buildingsCountToTrainFullBatch > 0)
     {
         if (buildingsCountToTrainFullBatch > 1)
-            fullBatchesString += buildingsCountToTrainFullBatch + "*";
-        fullBatchesString += fullBatchSize;
+            fullBatchesString = sprintf(translate("%(buildings)s*%(batchSize)s"), {
+                buildings: buildingsCountToTrainFullBatch,
+                batchSize: fullBatchSize
+            });
+        else
+            fullBatchesString = fullBatchSize;
     }
     var remainderBatchString = remainderBatch > 0 ? remainderBatch : "";
     var batchDetailsString = "";
+    var action = "[font=\"serif-bold-13\"]" + translate("Shift-click") + "[/font][font=\"serif-13\"]"
+
     // We need to display the batch details part if there is either more than
     // one building with full batch or one building with the full batch and
     // another with a partial batch
     if (buildingsCountToTrainFullBatch > 1 ||
         (buildingsCountToTrainFullBatch == 1 && remainderBatch > 0))
     {
-        batchDetailsString += " (" + fullBatchesString;
-        if (remainderBatchString != "")
-            batchDetailsString += " + " + remainderBatchString;
-        batchDetailsString += ")";
+        if (remainderBatch > 0)
+            return "\n[font=\"serif-13\"]" + sprintf(translate("%(action)s to train %(number)s (%(fullBatch)s + %(remainderBatch)s)."), {
+                action: action,
+                number: totalBatchTrainingCount,
+                fullBatch: fullBatchesString,
+                remainderBatch: remainderBatch
+            }) + "[/font]";
+
+        return "\n[font=\"serif-13\"]" + sprintf(translate("%(action)s to train %(number)s (%(fullBatch)s)."), {
+            action: action,
+            number: totalBatchTrainingCount,
+            fullBatch: fullBatchesString
+        }) + "[/font]";
     }
 
-    return "\n[font=\"serif-bold-13\"]Shift-click[/font][font=\"serif-13\"] to train "
-        + totalBatchTrainingCount + batchDetailsString + ".[/font]";
+    return "\n[font=\"serif-13\"]" + sprintf(translate("%(action)s to train %(number)s."), {
+        action: action,
+        number: totalBatchTrainingCount
+    }) + "[/font]";
+}
+
+function getStanceDisplayName(name)
+{
+    var displayName;
+    switch(name)
+    {
+        case "violent":
+            displayName = translate("Violent");
+            break;
+        case "aggressive":
+            displayName = translate("Aggressive");
+            break;
+        case "passive":
+            displayName = translate("Passive");
+            break;
+        case "defensive":
+            displayName = translate("Defensive");
+            break;
+        case "standground":
+            displayName = translate("Standground");
+            break;
+        default:
+            warn(sprintf(translate("Internationalization: Unexpected stance found with code ‘%(stance)s’. This stance must be internationalized."), { stance: name }));
+            displayName = name;
+            break;
+    }
+    return displayName;
 }
 
 /**
@@ -374 +419 @@
                 break;
         }
 
+
         switch (guiName)
         {
             case SELECTION:
@@ -386 +432 @@
             case QUEUE:
                 var tooltip = getEntityNames(template);
                 if (item.neededSlots)
-                    tooltip += "\n[color=\"red\"]Insufficient population capacity:\n[/color]"+getCostComponentDisplayName("population")+" "+item.neededSlots;
+                    tooltip += "\n[color=\"red\"]" + translate("Insufficient population capacity:") + "\n[/color]" + sprintf(translate("%(population)s %(neededSlots)s"), { population: getCostComponentDisplayName("population"), neededSlots: item.neededSlots });
 
                 var progress = Math.round(item.progress*100) + "%";
                 getGUIObjectByName("unit"+guiName+"Count["+i+"]").caption = (item.count > 1 ? item.count : "");
@@ -404 +450 @@
 
             case GARRISON:
                 var name = getEntityNames(template);
-                var tooltip = "Unload " + name + "\nSingle-click to unload 1. Shift-click to unload all of this type.";
+                var tooltip = sprintf(translate("Unload %(name)s"), { name: name })+ "\n" + translate("Single-click to unload 1. Shift-click to unload all of this type.");
                 var count = garrisonGroups.getCount(item);
                 getGUIObjectByName("unit"+guiName+"Count["+i+"]").caption = (count > 1 ? count : "");
                 break;
@@ -440 +486 @@
                 break;
 
             case STANCE:
+                var tooltip = getStanceDisplayName(item);
+                break;
+
             case FORMATION:
-                var tooltip = toTitleCase(item);
+                var tooltip = translate(item);
                 break;
 
             case TRAINING:
@@ -517 +566 @@
                 break;
         }
 
+
         // Button
         var button = getGUIObjectByName("unit"+guiName+"Button["+i+"]");
         var button1 = getGUIObjectByName("unit"+guiName+"Button["+(i+rowLength)+"]");
@@ -588 +638 @@
                     "formationName": item
                 });
 
-                button.tooltip += " (disabled)";
+                button.tooltip = sprintf(translate("%(formation)s (disabled)"), { formation: button.tooltip });
                 if (requirements.count > 1)
-                    button.tooltip += "\n" + requirements.count + " units required";
+                    button.tooltip += "\n" + sprintf(translate("%(number)s units required"), { number: requirements.count });
                 if (requirements.classesRequired)
                 {
-                    button.tooltip += "\nOnly units of type";
-                    for each (var classRequired in requirements.classesRequired)
-                    {
-                        button.tooltip += " " + classRequired;
-                    }
-                    button.tooltip += " allowed.";
+                    button.tooltip += "\n" + sprintf(translate("Only units of type %(unitType)s allowed."), { unitType: Engine.translateArray(requirements.classesRequired).join(translateWithContext("classSeparator", " ")) });
                 }
             }
 
@@ -631 +676 @@
             // If already a gate, show locking actions
             if (item.gate)
             {
-                gateIcon = "icons/lock_" + GATE_ACTIONS[item.locked ? 0 : 1].toLowerCase() + "ed.png";
+                gateIcon = "icons/lock_" + GATE_ACTIONS[item.locked ? 0 : 1] + "ed.png";
                 guiSelection.hidden = item.gate.locked === undefined ? false : item.gate.locked != item.locked;
             }
             // otherwise show gate upgrade icon
@@ -670 +715 @@
             {
                 button.enabled = false;
                 var techName = getEntityNames(GetTechnologyData(template.requiredTechnology));
-                button.tooltip += "\nRequires " + techName;
+                button.tooltip += "\n" + sprintf(translate("Requires %(technology)s"), { technology: techName });
                 grayscale = "grayscale:";
                 affordableMask.hidden = false;
                 affordableMask.sprite = "colour: 0 0 0 127";
@@ -911 +956 @@
         var selectTradingPreferredGoodsData = { "entities": selection, "preferredGoods": resource };
         button.onpress = (function(e){ return function() { selectTradingPreferredGoods(e); } })(selectTradingPreferredGoodsData);
         button.enabled = true;
-        button.tooltip = "Set " + resource + " as trading goods";
+        button.tooltip = sprintf(translate("Set %(resource)s as trading goods"), { resource: resource });
         var icon = getGUIObjectByName("unitTradingIcon["+i+"]");
         var preferredGoods = unitEntState.trader.preferredGoods;
         var selected = getGUIObjectByName("unitTradingSelection["+i+"]");
@@ -1098 +1143 @@
                     var gateTemplate = getWallGateTemplate(state.id);
                     if (gateTemplate)
                     {
-                        var wallName = GetTemplateData(state.template).name.generic;
-                        var gateName = GetTemplateData(gateTemplate).name.generic;
+                        var wallName = GetTemplateDataWithoutLocalization(state.template).name.generic;
+                        var gateName = GetTemplateDataWithoutLocalization(gateTemplate).name.generic;
+                        var tooltipString;
+
+                        // For internationalization purposes, when possible, available combinations should be provided
+                        // as placeholder-free strings as below.
+                        //
+                        // The placeholder implementation is provided only so that undetected new combinations of wall
+                        // and gate names are not simply printed in English, but as close to a perfect translation as
+                        // possible.
+
+                        if (wallName === "Wooden Wall" && gateName === "Wooden Gate")
+                        {
+                            tooltipString = translate("Convert Wooden Wall into Wooden Gate");
+                        }
+                        else if (wallName === "Stone Wall" && gateName === "City Gate")
+                        {
+                            tooltipString = translate("Convert Store Wall into City Gate");
+                        }
+                        else if (wallName === "Siege Wall" && gateName === "Siege Wall Gate")
+                        {
+                            tooltipString = translate("Convert Siege Wall into Siege Wall Gate");
+                        }
+                        else
+                        {
+                            warn(sprintf(translate("Internationalization: Unexpected combination of ‘%(localizedWall)s’ (%(englishWall)s) and ‘%(localizedGate)s’ (%(englishGate)s). This combination of wall and gate types must be internationalized."), { localizedWall: translate(wallName), englishWall: wallName, localizedGate: translate(gateName), englishGate: gateName }));
+                            tooltipString = sprintf(translate("Convert %(wall)s into %(gate)s"), { wall: translate(wallName), gate: translate(gateName) });
+                        }
 
                         walls.push({
-                            "tooltip": "Convert " + wallName + " to " + gateName,
+                            "tooltip": tooltipString,
                             "template": gateTemplate,
                             "callback": function (item) { transformWallToGate(item.template); }
                         });
@@ -1112 +1183 @@
                     longWallTypes[state.template] = true;
                 }
                 else if (state.gate && !gates.length)
-                    for (var j = 0; j < GATE_ACTIONS.length; ++j)
-                        gates.push({
-                            "gate": state.gate,
-                            "tooltip": GATE_ACTIONS[j] + " gate",
-                            "locked": j == 0,
-                            "callback": function (item) { lockGate(item.locked); }
-                        });
+                {
+                    gates.push({
+                        "gate": state.gate,
+                        "tooltip": translate("Lock Gate"),
+                        "locked": true,
+                        "callback": function (item) { lockGate(item.locked); }
+                    });
+                    gates.push({
+                        "gate": state.gate,
+                        "tooltip": translate("Unlock Gate"),
+                        "locked": false,
+                        "callback": function (item) { lockGate(item.locked); }
+                    });
+                }
                 // Show both 'locked' and 'unlocked' as active if the selected gates have both lock states.
                 else if (state.gate && state.gate.locked != gates[0].gate.locked)
                     for (var j = 0; j < gates.length; ++j)
@@ -1163 +1241 @@
                 }
             }
             if (packButton)
-                items.push({ "packing": false, "packed": false, "tooltip": "Pack", "callback": function() { packUnit(true); } });
+                items.push({ "packing": false, "packed": false, "tooltip": translate("Pack"), "callback": function() { packUnit(true); } });
             if (unpackButton)
-                items.push({ "packing": false, "packed": true, "tooltip": "Unpack", "callback": function() { packUnit(false); } });
+                items.push({ "packing": false, "packed": true, "tooltip": translate("Unpack"), "callback": function() { packUnit(false); } });
             if (packCancelButton)
-                items.push({ "packing": true, "packed": false, "tooltip": "Cancel packing", "callback": function() { cancelPackUnit(true); } });
+                items.push({ "packing": true, "packed": false, "tooltip": translate("Cancel Packing"), "callback": function() { cancelPackUnit(true); } });
             if (unpackCancelButton)
-                items.push({ "packing": true, "packed": true, "tooltip": "Cancel unpacking", "callback": function() { cancelPackUnit(false); } });
+                items.push({ "packing": true, "packed": true, "tooltip": translate("Cancel Unpacking"), "callback": function() { cancelPackUnit(false); } });
 
             if (items.length)
                 setupUnitPanel(PACK, usedPanels, entState, playerState, items);

binaries/data/mods/public/gui/session/utility_functions.js

@@ -151 +151 @@
 // For the unit details panel
 function damageTypeDetails(dmg)
 {
-    if (dmg)
-    {
-        var dmgArray = [];
-        if (dmg.hack) dmgArray.push(dmg.hack + "[font=\"sans-10\"][color=\"orange\"] Hack[/color][/font]");
-        if (dmg.pierce) dmgArray.push(dmg.pierce + "[font=\"sans-10\"][color=\"orange\"] Pierce[/color][/font]");
-        if (dmg.crush) dmgArray.push(dmg.crush + "[font=\"sans-10\"][color=\"orange\"] Crush[/color][/font]");
+    if (!dmg)
+        return "[font=\"serif-12\"]" + translate("(None)") + "[/font]";
 
-        return dmgArray.join(", ");
-    }
-    else
-    {
-        return "[font=\"serif-12\"](None)[/font]";
-    }
+    var dmgArray = [];
+    if (dmg.hack)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s"), {
+            damage: dmg.hack,
+            damageType: "[font=\"sans-10\"][color=\"orange\"]" + translate("Hack") + "[/color][/font]"
+        }));
+    if (dmg.pierce)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s"), {
+            damage: dmg.pierce,
+            damageType: "[font=\"sans-10\"][color=\"orange\"]" + translate("Pierce") + "[/color][/font]"
+        }));
+    if (dmg.crush)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s"), {
+            damage: dmg.crush,
+            damageType: "[font=\"sans-10\"][color=\"orange\"]" + translate("Crush") + "[/color][/font]"
+        }));
+
+    return dmgArray.join(translate(", "));
 }
 
 // Converts an armor level into the actual reduction percentage
-function armorLevelToPercentage(level)
+function armorLevelToPercentageString(level)
 {
-    return 100 - Math.round(Math.pow(0.9, level) * 100);
+    return (100 - Math.round(Math.pow(0.9, level) * 100)) + "%";
+    //  return sprintf(translate("%(armorPercentage)s%"), { armorPercentage: (100 - Math.round(Math.pow(0.9, level) * 100)) }); // Not supported by our sprintf implementation.
 }
 
 // Also for the unit details panel
 function armorTypeDetails(dmg)
 {
-    if (dmg)
-    {
-        var dmgArray = [];
-        if (dmg.hack)
-        {
-            dmgArray.push(dmg.hack + "[font=\"sans-10\"][color=\"orange\"] Hack[/color][/font] " +
-                " [font=\"sans-10\"](" + armorLevelToPercentage(dmg.hack) + "%)[/font]");
-        }
-        if (dmg.pierce)
-        {
-            dmgArray.push(dmg.pierce + "[font=\"sans-10\"][color=\"orange\"] Pierce[/color][/font] " +
-                " [font=\"sans-10\"](" + armorLevelToPercentage(dmg.pierce) + "%)[/font]");
-        }
-        if (dmg.crush)
-        {
-            dmgArray.push(dmg.crush + "[font=\"sans-10\"][color=\"orange\"] Crush[/color][/font] " +
-                " [font=\"sans-10\"](" + armorLevelToPercentage(dmg.crush) + "%)[/font]");
-        }
+    if (!dmg)
+        return "[font=\"serif-12\"]" + translate("(None)") + "[/font]";
 
-        return dmgArray.join(", ");
-    }
-    else
-    {
-        return "[font=\"serif-12\"](None)[/font]";
-    }
+    var dmgArray = [];
+    if (dmg.hack)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s %(armorPercentage)s"), {
+            damage: dmg.hack,
+            damageType: "[font=\"sans-10\"][color=\"orange\"]" + translate("Hack") + "[/color][/font]",
+            armorPercentage: "[font=\"sans-10\"]" + sprintf(translate("(%(armorPercentage)s)"), { armorPercentage: armorLevelToPercentageString(dmg.hack) }) + "[/font]"
+        }));
+    if (dmg.pierce)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s %(armorPercentage)s"), {
+            damage: dmg.pierce,
+            damageType: "[font=\"sans-10\"][color=\"orange\"]" + translate("Pierce") + "[/color][/font]",
+            armorPercentage: "[font=\"sans-10\"]" + sprintf(translate("(%(armorPercentage)s)"), { armorPercentage: armorLevelToPercentageString(dmg.pierce) }) + "[/font]"
+        }));
+    if (dmg.crush)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s %(armorPercentage)s"), {
+            damage: dmg.crush,
+            damageType: "[font=\"sans-10\"][color=\"orange\"]" + translate("Crush") + "[/color][/font]",
+            armorPercentage: "[font=\"sans-10\"]" + sprintf(translate("(%(armorPercentage)s)"), { armorPercentage: armorLevelToPercentageString(dmg.crush) }) + "[/font]"
+        }));
+
+    return dmgArray.join(translate(", "));
 }
 
 // For the training tooltip
 function damageTypesToText(dmg)
 {
     if (!dmg)
-        return "[font=\"serif-12\"](None)[/font]";
-
-    var hackLabel = "[font=\"serif-12\"] Hack[/font]";
-    var pierceLabel = "[font=\"serif-12\"] Pierce[/font]";
-    var crushLabel = "[font=\"serif-12\"] Crush[/font]";
-    var hackDamage = dmg.hack;
-    var pierceDamage = dmg.pierce;
-    var crushDamage = dmg.crush;
+        return "[font=\"serif-12\"]" + translate("(None)") + "[/font]";
 
     var dmgArray = [];
-    if (hackDamage) dmgArray.push(Math.round(hackDamage) + hackLabel);
-    if (pierceDamage) dmgArray.push(Math.round(pierceDamage) + pierceLabel);
-    if (crushDamage) dmgArray.push(Math.round(crushDamage) + crushLabel);
-
-    return dmgArray.join("[font=\"serif-12\"], [/font]");
+    if (dmg.hack)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s"), {
+            damage: dmg.hack,
+            damageType: "[font=\"serif-12\"]" + translate("Hack") + "[/font]"
+        }));
+    if (dmg.pierce)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s"), {
+            damage: dmg.pierce,
+            damageType: "[font=\"serif-12\"]" + translate("Pierce") + "[/font]"
+        }));
+    if (dmg.crush)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s"), {
+            damage: dmg.crush,
+            damageType: "[font=\"serif-12\"]" + translate("Crush") + "[/font]"
+        }));
+
+    return dmgArray.join("[font=\"serif-12\"]" + translate(", ") + "[/font]");
 }
 
 // Also for the training tooltip
 function armorTypesToText(dmg)
 {
     if (!dmg)
-        return "[font=\"serif-12\"](None)[/font]";
-
-    var hackDamage = dmg.hack;
-    var pierceDamage = dmg.pierce;
-    var crushDamage = dmg.crush;
-    var hackLabel = "[font=\"serif-12\"] Hack (" + armorLevelToPercentage(hackDamage) + "%)[/font]";
-    var pierceLabel = "[font=\"serif-12\"] Pierce (" + armorLevelToPercentage(pierceDamage) + "%)[/font]";
-    var crushLabel = "[font=\"serif-12\"] Crush (" + armorLevelToPercentage(crushDamage) + "%)[/font]";
+        return "[font=\"serif-12\"]" + translate("(None)") + "[/font]";
 
     var dmgArray = [];
-    if (hackDamage) dmgArray.push(hackDamage + hackLabel);
-    if (pierceDamage) dmgArray.push(pierceDamage + pierceLabel);
-    if (crushDamage) dmgArray.push(crushDamage + crushLabel);
-
-    return dmgArray.join("[font=\"serif-12\"], [/font]");
+    if (dmg.hack)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s %(armorPercentage)s"), {
+            damage: dmg.hack,
+            damageType: "[font=\"serif-12\"]" + translate("Hack") + "[/font]",
+            armorPercentage: "[font=\"sans-10\"]" + sprintf(translate("(%(armorPercentage)s)"), { armorPercentage: armorLevelToPercentageString(dmg.hack) }) + "[/font]"
+        }));
+    if (dmg.pierce)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s %(armorPercentage)s"), {
+            damage: dmg.pierce,
+            damageType: "[font=\"serif-12\"]" + translate("Pierce") + "[/font]",
+            armorPercentage: "[font=\"sans-10\"]" + sprintf(translate("(%(armorPercentage)s)"), { armorPercentage: armorLevelToPercentageString(dmg.pierce) }) + "[/font]"
+        }));
+    if (dmg.crush)
+        dmgArray.push(sprintf(translate("%(damage)s %(damageType)s %(armorPercentage)s"), {
+            damage: dmg.crush,
+            damageType: "[font=\"serif-12\"]" + translate("Crush") + "[/font]",
+            armorPercentage: "[font=\"sans-10\"]" + sprintf(translate("(%(armorPercentage)s)"), { armorPercentage: armorLevelToPercentageString(dmg.crush) }) + "[/font]"
+        }));
+
+    return dmgArray.join("[font=\"serif-12\"]" + translate(", ") + "[/font]");
 }
 
 function getEntityCommandsList(entState)
@@ -251 +272 @@
     {
         commands.push({
             "name": "unload-all",
-            "tooltip": "Unload All",
+            "tooltip": translate("Unload All"),
             "icon": "garrison-out.png"
         });
     }
 
     commands.push({
         "name": "delete",
-        "tooltip": "Delete",
+        "tooltip": translate("Delete"),
         "icon": "kill_small.png"
     });
 
@@ -266 +287 @@
     {
         commands.push({
             "name": "stop",
-            "tooltip": "Stop",
+            "tooltip": translate("Stop"),
             "icon": "stop.png"
         });
         commands.push({
             "name": "garrison",
-            "tooltip": "Garrison",
+            "tooltip": translate("Garrison"),
             "icon": "garrison.png"
         });
     }
@@ -280 +301 @@
     {
         commands.push({
             "name": "repair",
-            "tooltip": "Repair",
+            "tooltip": translate("Repair"),
             "icon": "repair.png"
         });
     }
@@ -289 +310 @@
     {
         commands.push({
             "name": "focus-rally",
-            "tooltip": "Focus on Rally Point",
+            "tooltip": translate("Focus on Rally Point"),
             "icon": "focus-rally.png"
         });
     }
-    
+
     if (entState.unitAI && entState.unitAI.lastWorkOrder)
     {
         commands.push({
             "name": "back-to-work",
-            "tooltip": "Back to Work",
+            "tooltip": translate("Back to Work"),
             "icon": "production.png"
         });
     }
@@ -339 +360 @@
     totalCosts.time = Math.ceil(template.cost.time * (entity ? Engine.GuiInterfaceCall("GetBatchTime", {"entity": entity, "batchSize": trainNum}) : 1));
 
     var costs = [];
-    if (totalCosts.food) costs.push(getCostComponentDisplayName("food") + " " + totalCosts.food);
-    if (totalCosts.wood) costs.push(getCostComponentDisplayName("wood") + " " + totalCosts.wood);
-    if (totalCosts.metal) costs.push(getCostComponentDisplayName("metal") + " " + totalCosts.metal);
-    if (totalCosts.stone) costs.push(getCostComponentDisplayName("stone") + " " + totalCosts.stone);
-    if (totalCosts.population) costs.push(getCostComponentDisplayName("population") + " " + totalCosts.population);
-    if (totalCosts.time) costs.push(getCostComponentDisplayName("time") + " " + totalCosts.time);
+    if (totalCosts.food) costs.push(sprintf(translate("%(component)s %(cost)s"), { component: getCostComponentDisplayName("food"), cost: totalCosts.food }));
+    if (totalCosts.wood) costs.push(sprintf(translate("%(component)s %(cost)s"), { component: getCostComponentDisplayName("wood"), cost: totalCosts.wood }));
+    if (totalCosts.metal) costs.push(sprintf(translate("%(component)s %(cost)s"), { component: getCostComponentDisplayName("metal"), cost: totalCosts.metal }));
+    if (totalCosts.stone) costs.push(sprintf(translate("%(component)s %(cost)s"), { component: getCostComponentDisplayName("stone"), cost: totalCosts.stone }));
+    if (totalCosts.population) costs.push(sprintf(translate("%(component)s %(cost)s"), { component: getCostComponentDisplayName("population"), cost: totalCosts.population }));
+    if (totalCosts.time) costs.push(sprintf(translate("%(component)s %(cost)s"), { component: getCostComponentDisplayName("time"), cost: totalCosts.time }));
     return costs;
 }
 
@@ -360 +381 @@
 
     // Initialize the acceptable types for '$x to $y $resource' mode.
     for (var resource in wallTypes[0].cost)
+    {
         if (wallTypes[0].cost[resource])
             resourceCount[resource] = [wallTypes[0].cost[resource]];
+    }
 
     var sameTypes = true;
     for (var i = 1; i < wallTypes.length; ++i)
@@ -425 +448 @@
         var wallCosts = getWallPieceTooltip([templateShort, templateMedium, templateLong]);
         var towerCosts = getEntityCostComponentsTooltipString(templateTower);
 
-        cost += "\n";
-        cost += " Walls:  " + wallCosts.join("  ") + "\n";
-        cost += " Towers: " + towerCosts.join("  ");
+        cost += " " + sprintf(translate("Walls:  %(costs)s"), { costs: wallCosts.join(translate("  ")) }) + "\n";
+        cost += " " + sprintf(translate("Towers:  %(costs)s"), { costs: towerCosts.join(translate("  ")) });
     }
     else if (template.cost)
     {
         var costs = getEntityCostComponentsTooltipString(template, trainNum, entity);
-        cost += costs.join("  ");
+        cost = costs.join(translate("  "));
     }
     else
     {
@@ -449 +471 @@
 {
     var popBonus = "";
     if (template.cost && template.cost.populationBonus)
-        popBonus = "\n[font=\"serif-bold-13\"]Population Bonus:[/font] " + template.cost.populationBonus;
+        popBonus = "\n" + sprintf(translate("%(label)s %(populationBonus)s"), {
+            label: "[font=\"serif-bold-13\"]" + translate("Population Bonus:") + "[/font]",
+            populationBonus: template.cost.populationBonus
+        });
     return popBonus;
 }
 
@@ -460 +485 @@
 {
     var formatted = [];
     for (var resource in resources)
-        formatted.push("[font=\"serif-12\"]" + getCostComponentDisplayName(resource) + "[/font] " + resources[resource]);
+        formatted.push(sprintf(translate("%(component)s %(cost)s"), {
+            component: "[font=\"serif-12\"]" + getCostComponentDisplayName(resource) + "[/font]",
+            cost: resources[resource]
+        }));
 
-    return "\n\n[font=\"serif-bold-13\"][color=\"red\"]Insufficient resources:[/color][/font]\n" + formatted.join("  ");
+    return "\n\n[font=\"serif-bold-13\"][color=\"red\"]" + translate("Insufficient resources:") + "[/color][/font]\n" + formatted.join(translate("  "));
 }
 
 function getEntitySpeed(template)
@@ -470 +498 @@
     var speed = "";
     if (template.speed)
     {
-        speed += "[font=\"serif-bold-13\"]Speed:[/font] ";
+        var label = "[font=\"serif-bold-13\"]" + translate("Speed:") + "[/font]"
         var speeds = [];
-        if (template.speed.walk) speeds.push(template.speed.walk + " [font=\"serif-12\"]Walk[/font]");
-        if (template.speed.run) speeds.push(template.speed.run + " [font=\"serif-12\"]Run[/font]");
+        if (template.speed.walk) speeds.push(sprintf(translate("%(speed)s %(movementType)s"), { speed: template.speed.walk, movementType: "[font=\"serif-12\"]" + translate("Walk") + "[/font]"}));
+        if (template.speed.run) speeds.push(sprintf(translate("%(speed)s %(movementType)s"), { speed: template.speed.run, movementType: "[font=\"serif-12\"]" + translate("Run") + "[/font]"}));
 
-        speed += speeds.join(", ");
+        speed = sprintf(translate("%(label)s %(speeds)s"), { label: label, speeds: speeds.join(translate(", ")) })
     }
     return speed;
 }
@@ -489 +517 @@
         delete template.attack['Slaughter'];
         for (var type in template.attack)
         {
-            var attack = "[font=\"serif-bold-13\"]" + type + " Attack:[/font] " + damageTypesToText(template.attack[type]);
-            // Show max attack range if ranged attack, also convert to tiles (4m per tile)
+            var attack = "";
+            var attackLabel = "[font=\"serif-bold-13\"]" + getAttackTypeLabel(type) + "[/font]";
             if (type == "Ranged")
-                attack += ", [font=\"serif-bold-13\"]Range:[/font] "+Math.round(template.attack[type].maxRange/4);
+            {
+                // Show max attack range if ranged attack, also convert to tiles (4m per tile)
+                attack = sprintf(translate("%(attackLabel)s %(damageTypes)s, %(rangeLabel)s %(range)s"), {
+                    attackLabel: attackLabel,
+                    damageTypes: damageTypesToText(template.attack[type]),
+                    rangeLabel: "[font=\"serif-bold-13\"]" + translate("Range:") + "[/font]",
+                    range: Math.round(template.attack[type].maxRange/4)
+                });
+            }
+            else
+            {
+                attack = sprintf(translate("%(attackLabel)s %(damageTypes)s"), {
+                    attackLabel: attackLabel,
+                    damageTypes: damageTypesToText(template.attack[type])
+                });
+            }
             attacks.push(attack);
         }
     }
@@ -501 +544 @@
 
 function getEntityName(template)
 {
-    return template.name.specific || template.name.generic || "???";
+    if (template.name.specific)
+        return translate(template.name.specific);
+    if (template.name.generic)
+        return translate(template.name.generic);
+
+    warn(translate("Entity name requested on an entity without a name, specific or generic."));
+    return translate("???");
 }
 
 function getEntityNames(template)
 {
-    var names = [];
     if (template.name.specific)
-    {
-        names.push(template.name.specific);
-        if (template.name.generic && names[0] != template.name.generic)
-            names.push("(" + template.name.generic + ")");
-    }
-    else if (template.name.generic)
-        names.push(template.name.generic);
-
-    return (names.length) ? names.join(" ") : "???";
+    {
+        if (template.name.generic && template.name.specific != template.name.generic)
+            return sprintf(translate("%(specificName)s (%(genericName)s)"), {
+                specificName: translate(template.name.specific),
+                genericName: translate(template.name.generic)
+            });
+        return translate(template.name.specific);
+    }
+    if (template.name.generic)
+        return translate(template.name.generic);
+
+    warn(translate("Entity name requested on an entity without a name, specific or generic."));
+    return translate("???");
 }
 
 function getEntityNamesFormatted(template)
@@ -546 +598 @@
     var template = GetTemplateData(entState.template)
     var rank = entState.identity.rank;
     if (rank)
-        return rank + " " + template.name.specific;
+        return sprintf(translate("%(rank)s %(name)s"), { rank: rank, name: template.name.specific });
     else
         return template.name.specific;
 }
@@ -568 +620 @@
  */
 function getTradingTooltip(gain)
 {
-    var tooltip = gain.traderGain;
+    var gainString = gain.traderGain;
     if (gain.market1Gain && gain.market1Owner == gain.traderOwner)
-        tooltip += "+" + gain.market1Gain;
+        gainString += translate("+") + gain.market1Gain;
     if (gain.market2Gain && gain.market2Owner == gain.traderOwner)
-        tooltip += "+" + gain.market2Gain;
-    tooltip += " (you)";
+        gainString += translate("+") + gain.market2Gain;
+
+    var tooltip = sprintf(translate("%(gain)s (%(player)s)"), {
+        gain: gainString,
+        player: translate("you")
+    });
 
     if (gain.market1Gain && gain.market1Owner != gain.traderOwner)
-        tooltip += ", " + gain.market1Gain + " (player " + gain.market1Owner + ")";
+        tooltip += translate(", ") + sprintf(translate("%(gain)s (%(player)s)"), {
+            gain: gain.market1Gain,
+            player: sprintf(translate("player %(name)s"), { name: gain.market1Owner })
+        });
     if (gain.market2Gain && gain.market2Owner != gain.traderOwner)
-        tooltip += ", " + gain.market2Gain + " (player " + gain.market2Owner + ")";
+        tooltip += translate(", ") + sprintf(translate("%(gain)s (%(player)s)"), {
+            gain: gain.market2Gain,
+            player: sprintf(translate("player %(name)s"), { name: gain.market2Owner })
+        });
 
     return tooltip;
 }
 
+function getAttackTypeLabel(type)
+{
+    if (type === "Charge") return translate("Charge Attack:");
+    if (type === "Melee") return translate("Melee Attack:");
+    if (type === "Ranged") return translate("Ranged Attack:");
+
+    warn(sprintf(translate("Internationalization: Unexpected attack type found with code ‘%(attackType)s’. This attack type must be internationalized."), { attackType: type }));
+    return translate("Attack:");
+}
+
 /**
  * Returns the entity itself except when garrisoned where it returns its garrisonHolder
  */

binaries/data/mods/public/gui/splashscreen/splashscreen.js

@@ -1 +1 @@
 function init(data)
 {
-    getGUIObjectByName("mainText").caption = readFile("gui/splashscreen/" + data.page + ".txt");
+    getGUIObjectByName("mainText").caption = Engine.translateLines(readFile("gui/splashscreen/" + data.page + ".txt"));
 }

binaries/data/mods/public/gui/splashscreen/splashscreen.xml

@@ -8 +8 @@
     <object type="image" z="0" style="TranslucentPanel"/>
 
     <object type="image" style="StoneDialog" size="50%-300 50%-200 50%+300 50%+200">
-        <object type="text" style="TitleText" size="50%-128 0%-16 50%+128 16">Welcome to 0 A.D. !</object>
+        <object type="text" style="TitleText" size="50%-128 0%-16 50%+128 16">
+            <translatableAttribute id="caption">Welcome to 0 A.D. !</translatableAttribute>
+        </object>
 
             <object type="image" sprite="BackgroundTranslucent" size="20 20 100%-20 100%-52">
                 <object name="openFundraiserPage" type="button" style="fundraiserButton" size="5 5 100% 150">
@@ -21 +23 @@
                 </object>
             </object>
         <object name="btnOK" type="button" style="StoneButton" tooltip_style="snToolTip" size="24 100%-52 188 100%-24">
-            OK
+            <translatableAttribute id="caption">OK</translatableAttribute>
             <action on="Press"><![CDATA[
             Engine.SetSplashScreenEnabled(!getGUIObjectByName("displaySplashScreen").checked);
             Engine.PopGuiPage();
             ]]></action>
         </object>
         <object name="btnFundraiser" type="button" style="StoneButton" tooltip_style="snToolTip" size="196 100%-52 360 100%-24">
-            Visit Fundraiser
+            <translatableAttribute id="caption">Visit Fundraiser</translatableAttribute>
             <action on="Press"><![CDATA[
             Engine.OpenURL("http://play0ad.com/fundraiser");
             ]]></action>
         </object>
         <object size="368 100%-52 100%-32 100%-24">
             <object size="0 0 100% 100%">
-                <object name="displaySplashScreenText" size="0 0 100%-32 100%" type="text" style="RightLabelText">Don't show this again</object>
+                <object name="displaySplashScreenText" size="0 0 100%-32 100%" type="text" style="RightLabelText">
+                    <translatableAttribute id="caption">Don't show this again</translatableAttribute>
+                </object>
                 <object name="displaySplashScreen" checked="false" size="100%-16 50%-8 100% 50%+8" type="checkbox" style="StoneCrossBox"/>
             </object>
         </object>

binaries/data/mods/public/gui/summary/summary.js

@@ -37 +37 @@
 function init(data)
 {
     var civData = loadCivData();
-    var mapSize = "Scenario";
+    var mapDisplayType = translate("Scenario");
 
-    getGUIObjectByName("timeElapsed").caption = "Time elapsed: " + timeToString(data.timeElapsed);
+    getGUIObjectByName("timeElapsed").caption = sprintf(translate("Time elapsed: %(time)s"), { time: timeToString(data.timeElapsed) });
 
     getGUIObjectByName("summaryText").caption = data.gameResult;
 
@@ -54 +54 @@
         {
             if (mapSizes.tiles[mapSizeIndex] == data.mapSettings.Size)
             {
-                mapSize = mapSizes.names[mapSizeIndex];
+                mapDisplayType = mapSizes.names[mapSizeIndex];
                 break;
             }
         }
     }
 
-    getGUIObjectByName("mapName").caption = data.mapSettings.Name + " - " + mapSize;
+    getGUIObjectByName("mapName").caption = sprintf(translate("%(mapName)s - %(mapType)s"), { mapName: data.mapSettings.Name, mapType: mapDisplayType});
 
     // Space player boxes
     var boxSpacing = 32;

binaries/data/mods/public/gui/summary/summary.xml

@@ -20 +20 @@
         </action>
 
         <object style="TitleText" type="text" size="50%-128 4 50%+128 36">
-            Summary
+            <translatableAttribute id="caption">Summary</translatableAttribute>
         </object>
 
         <object type="image" sprite="ForegroundBody" size="20 20 100%-20 70">
@@ -59 +59 @@
 
         <object name="scorePanelButton" type="button" sprite="ForegroundTab" size="20 95 170 120">
             <action on="Press">selectPanel(0);</action>
-            <object type="text" style="TitleText" ghost="true">Score</object>
+            <object type="text" style="TitleText" ghost="true">
+                <translatableAttribute id="caption">Score</translatableAttribute>
+            </object>
         </object>
         
         <object name="unitsBuildingsPanelButton" type="button" sprite="BackgroundTab" size="176 95 326 120">
             <action on="Press">selectPanel(1);</action>
-            <object type="text" style="TitleText" ghost="true">Units/buildings</object>
+            <object type="text" style="TitleText" ghost="true">
+                <translatableAttribute id="caption">Units/buildings</translatableAttribute>
+            </object>
         </object>
 
         <object name="conquestPanelButton" type="button" sprite="BackgroundTab" size="332 95 480 120">
             <action on="Press">selectPanel(2);</action>
-            <object type="text" style="TitleText" ghost="true">Conquest</object>
+            <object type="text" style="TitleText" ghost="true">
+                <translatableAttribute id="caption">Conquest</translatableAttribute>
+            </object>
         </object>
 
         <object name="resourcesPanelButton" type="button" sprite="BackgroundTab" size="486 95 636 120">
             <action on="Press">selectPanel(3);</action>
-            <object type="text" style="TitleText" ghost="true">Resources</object>
+            <object type="text" style="TitleText" ghost="true">
+                <translatableAttribute id="caption">Resources</translatableAttribute>
+            </object>
         </object>
 
         <object name="marketPanelButton" type="button" sprite="BackgroundTab" size="642 95 792 120">
             <action on="Press">selectPanel(4);</action>
-            <object type="text" style="TitleText" ghost="true">Market</object>
+            <object type="text" style="TitleText" ghost="true">
+                <translatableAttribute id="caption">Market</translatableAttribute>
+            </object>
         </object>
 
         <object name="scorePanel" type="image" sprite="ForegroundBody" size="20 120 100%-20 100%-58">
 
             <object size="0 0 100% 100%-50">
                 <object name="playerName0Heading" type="text" style="LeftTabLabelText">
-                    Player name
+                    <translatableAttribute id="caption">Player name</translatableAttribute>
                 </object>
                 <object name="economyScoreHeading" type="text" style="CenteredTabLabelText">
-                    Economy&#10;score
+                    <translatableAttribute id="caption">Economy score</translatableAttribute>
                 </object>
                 <object name="militaryScoreHeading" type="text" style="CenteredTabLabelText">
-                    Military&#10;score
+                    <translatableAttribute id="caption">Military score</translatableAttribute>
                 </object>
                 <object name="explorationScoreHeading" type="text" style="CenteredTabLabelText">
-                    Exploration&#10;score
+                    <translatableAttribute id="caption">Exploration score</translatableAttribute>
                 </object>
                 <object name="totalScoreHeading" type="text" style="CenteredTabLabelText">
-                    Total&#10;score
+                    <translatableAttribute id="caption">Total score</translatableAttribute>
                 </object>
             </object>
 
@@ -121 +131 @@
 
             <object size="0 0 100% 100%-50">
                 <object name="playerName1Heading" type="text" style="LeftTabLabelText">
-                    Player name
+                    <translatableAttribute id="caption">Player name</translatableAttribute>
                 </object>
                 <object name="unitsTrainedHeading" type="text" style="CenteredTabLabelText">
-                    Units&#10;trained
+                    <translatableAttribute id="caption">Units trained</translatableAttribute>
                 </object>
                 <object name="unitsLostHeading" type="text" style="CenteredTabLabelText">
-                    Units&#10;lost
+                    <translatableAttribute id="caption">Units lost</translatableAttribute>
                 </object>
                 <object name="enemyUnitsKilledHeading" type="text" style="CenteredTabLabelText">
-                    Enemy units&#10;killed
+                    <translatableAttribute id="caption">Enemy units killed</translatableAttribute>
                 </object>
                 <object name="buildingsConstructedHeading" type="text" style="CenteredTabLabelText">
-                    Buildings&#10;constructed
+                    <translatableAttribute id="caption">Buildings constructed</translatableAttribute>
                 </object>
                 <object name="buildingsLostHeading" type="text" style="CenteredTabLabelText">
-                    Buildings&#10;lost
+                    <translatableAttribute id="caption">Buildings lost</translatableAttribute>
                 </object>
                 <object name="enemyBuildingsDestroyedHeading" type="text" style="CenteredTabLabelText">
-                    Enemy&#10;buildings&#10;destroyed
+                    <translatableAttribute id="caption">Enemy buildings destroyed</translatableAttribute>
                 </object>
             </object>
 
@@ -164 +174 @@
 
             <object size="0 0 100% 100%-50">
                 <object name="playerName2Heading" type="text" style="LeftTabLabelText">
-                    Player name
+                    <translatableAttribute id="caption">Player name</translatableAttribute>
                 </object>
                 <object name="civCentresBuiltHeading" type="text" style="CenteredTabLabelText">
-                    Civ centres&#10;built
+                    <translatableAttribute id="caption">Civ centres built</translatableAttribute>
                 </object>
                 <object name="enemyCivCentresDestroyedHeading" type="text" style="CenteredTabLabelText">
-                    Enemy&#10;civ centres&#10;destroyed
+                    <translatableAttribute id="caption">Enemy civ centres destroyed</translatableAttribute>
                 </object>
                 <object name="mapExplorationHeading" type="text" style="CenteredTabLabelText">
-                    Map&#10;exploration
+                    <translatableAttribute id="caption">Map exploration</translatableAttribute>
                 </object>
             </object>
 
@@ -195 +205 @@
 
             <object size="0 0 100% 100%-50">
                 <object name="playerName3Heading" type="text" style="LeftTabLabelText">
-                    Player name
+                    <translatableAttribute id="caption">Player name</translatableAttribute>
                 </object>
                 <object name="resourceHeading" type="text" style="CenteredTabLabelText">
-                    Resource Statistics (Gathered / Used)
+                    <translatableAttribute id="caption">Resource Statistics (Gathered / Used)</translatableAttribute>
                 </object>
                 <object name="foodGatheredHeading" type="text" style="CenteredTabLabelText">
-                    Food
+                    <translatableAttribute id="caption">Food</translatableAttribute>
                 </object>
                 <object name="woodGatheredHeading" type="text" style="CenteredTabLabelText">
-                    Wood
+                    <translatableAttribute id="caption">Wood</translatableAttribute>
                 </object>
                 <object name="stoneGatheredHeading" type="text" style="CenteredTabLabelText">
-                    Stone
+                    <translatableAttribute id="caption">Stone</translatableAttribute>
                 </object>
                 <object name="metalGatheredHeading" type="text" style="CenteredTabLabelText">
-                    Metal
+                    <translatableAttribute id="caption">Metal</translatableAttribute>
                 </object>
                 <object name="vegetarianRatioHeading" type="text" style="CenteredTabLabelText">
-                    Vegetarian&#10;ratio
+                    <translatableAttribute id="caption">Vegetarian ratio</translatableAttribute>
                 </object>
                 <object name="treasuresCollectedHeading" type="text" style="CenteredTabLabelText">
-                    Treasures&#10;collected
+                    <translatableAttribute id="caption">Treasures collected</translatableAttribute>
                 </object>
                 <object name="resourcesTributedHeading" type="text" style="CenteredTabLabelText">
-                    Tributes&#10;(Sent / Received)
+                    <translatableAttribute id="caption">Tributes (Sent / Received)</translatableAttribute>
                 </object>
             </object>
 
@@ -245 +255 @@
 
             <object size="0 0 100% 100%-50">
                 <object name="playerName4Heading" type="text" style="LeftTabLabelText">
-                    Player name
+                    <translatableAttribute id="caption">Player name</translatableAttribute>
                 </object>
                 <object name="exchangedFoodHeading" type="text" style="CenteredTabLabelText">
-                    Food&#10;exchanged
+                    <translatableAttribute id="caption">Food exchanged</translatableAttribute>
                 </object>
                 <object name="exchangedWoodHeading" type="text" style="CenteredTabLabelText">
-                    Wood&#10;exchanged
+                    <translatableAttribute id="caption">Wood exchanged</translatableAttribute>
                 </object>
                 <object name="exchangedStoneHeading" type="text" style="CenteredTabLabelText">
-                    Stone&#10;exchanged
+                    <translatableAttribute id="caption">Stone exchanged</translatableAttribute>
                 </object>
                 <object name="exchangedMetalHeading" type="text" style="CenteredTabLabelText">
-                    Metal&#10;exchanged
+                    <translatableAttribute id="caption">Metal exchanged</translatableAttribute>
                 </object>
                 <object name="barterEfficiencyHeading" type="text" style="CenteredTabLabelText">
-                    Barter&#10;efficiency
+                    <translatableAttribute id="caption">Barter efficiency</translatableAttribute>
                 </object>
                 <object name="tradeIncomeHeading" type="text" style="CenteredTabLabelText">
-                    Trade&#10;income
+                    <translatableAttribute id="caption">Trade income</translatableAttribute>
                 </object>
             </object>
 
@@ -286 +296 @@
         </object>
 
         <object type="button" style="StoneButton" size="100%-164 100%-52 100%-24 100%-24">
-            Continue
+            <translatableAttribute id="caption">Continue</translatableAttribute>
             <action on="Press">
                 Engine.SwitchGuiPage("page_pregame.xml");
             </action>