--- a/src/ai/api/ai_object.hpp	Sun Mar 18 16:02:41 2007 +0000
+++ b/src/ai/api/ai_object.hpp	Sun Mar 18 18:02:27 2007 +0000
@@ -21,6 +21,7 @@
 	struct AIDoCommandStruct {
 		AIModeProc *mode;
 		uint delay;
+		int32 costs;
 	};
 
 	/**
@@ -32,17 +33,22 @@
 	/**
 	 * Executes a raw DoCommand for the AI.
 	 */
-	int32 DoCommand(TileIndex tile, uint32 p1, uint32 p2, uint32 flags, uint procc);
+	bool DoCommand(TileIndex tile, uint32 p1, uint32 p2, uint32 flags, uint procc);
 
 	/**
-	 * Checks if the result of a DoCommand went wrong.
+	 * Sets the DoCommand costs counter to a value.
 	 */
-	bool CmdFailed(int32 res);
+	void SetDoCommandCosts(int32 value);
 
 	/**
-	 * Checks if the result of a DoCommand went okay.
+	 * Increase the current value of the DoCommand costs counter.
 	 */
-	bool CmdSucceeded(int32 res);
+	void IncreaseDoCommandCosts(int32 value);
+
+	/**
+	 * Get the current DoCommand costs counter.
+	 */
+	int32 GetDoCommandCosts();
 
 	/**
 	 * Set the current mode of your AI to this proc.