Changes between Version 22 and Version 23 of Rmgen_Library

Timestamp:

Apr 20, 2012, 9:22:26 PM (12 years ago)

Author:

FeXoR

Comment:

--

Rmgen_Library

@@ -4 +4 @@
 == Map Coordinate System ==
 
-The rmgen libs use a 2D coordinate system, the standard X/Y plane despite many functions use the letter Z instead of Y (leavings of the originally used 3D behavior). Positive X is left, positive Y is top when the map is not rotated. Coordinate 0/0 is bottom left on the map. The Z coordinate is set automatically and cannot be set otherwise.
+The rmgen libs use a 2D coordinate system, the standard X/Y plane despite many functions use the letter Z instead of Y (leavings of the originally used 3D behavior). Positive X is right, positive Y is top when the map is not rotated. Coordinate 0/0 is bottom left on the map. The Z coordinate is set automatically and cannot be set otherwise.
 Angle 0 means facing positive X, raising it means counter clockwise rotation so for example PI/2 means facing top.
 To simplify terrain texture placement the axis (including height) are scaled to tiles with a tile granting the space used to place a terrain texture (One tile = 4.0 model-space units that are used in the engine). While placing a terrain texture is only allowed on a tile (defined by integer coordinates) entities for example can be placed anywhere on the map (float coordinates). Note that a terrain texture on 0/0 is placed on the square from 0/0 to 1/1 so an entity placed at 0.5/0.5 would be in the middle of that terrain texture.