Allow to set the biome with the autostart command

[Langbart]

issue

The -autostart-seed=SEED flag allows a specific random map to be loaded, this is great for testing. The changes made with commit [26584] now also load different biomes. This forces you to load the same map multiple times to get the specific seed/ biome you want to test.

to reproduce

• Choose a random map that has several biomes, e.g., Mainland.
• Start this map with the -autostart-seed flag from the command line, e.g.

  binaries/system/pyrogenesis -conf=mod.enabledmods:"public" -autostart="random/mainland" -autostart-seed=100
  

• Close 0 A.D. and run the same command again, usually a different biome will appear.

possible solution

Add a -autostart-biome flag to the command line.

• code snippet from ​Phab:D4117

source/ps/GameSetup/GameSetup.cpp

@@ -965 +965 @@
             CStr num = args.Get("autostart-players");
             numPlayers = num.ToUInt();
         }
+        // Set biome if wanted
+        if (args.Has("autostart-biome"))
+        {
+            CStr biome = args.Get("autostart-biome");
+            Script::SetProperty(rq, settings, "Biome", biome);
+        }
         // Set up player data
         for (size_t i = 0; i < numPlayers; ++i)
         {

• tested with the following command

  binaries/system/pyrogenesis -conf=mod.enabledmods:"public" -autostart="random/mainland" -autostart-seed=100 -autostart-biome="generic/nubia"
  

related ticket

• #6471 (21/Mar/22)

[Langbart]

link to related ticket

[Langbart]

• much needed for comparing different Alpha versions on the same map

[Langbart]

• Adding a code snippet for a possible solution from ​Phab:D4117 to fix the problem

[Freagarach]

In 27692:

Allow to set the biome with the autostart command.

Basically a patch by: @wraitii
Differential revision: ​https://code.wildfiregames.com/D4976
Comments by: @bb, @sera
Accepted by: @Langbart
Fixes #6521