--- a/openttd.h	Thu May 11 21:44:09 2006 +0000
+++ b/openttd.h	Fri May 12 00:27:12 2006 +0000
@@ -67,6 +67,7 @@
 typedef byte PlayerID;
 typedef byte OrderID;
 typedef byte CargoID;
+typedef byte LandscapeID;
 typedef uint16 StringID;
 typedef uint32 SpriteID;    ///< The number of a sprite, without mapping bits and colortables
 typedef uint32 PalSpriteID; ///< The number of a sprite plus all the mapping bits and colortables