X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fgameboard.h;h=9f59480e961c7a42a632552f4aee66b01fbd1813;hb=af4549443047a8b46809a541674d04745f7b5037;hp=4452e2595d2d0bd8476822a16dd38e70ad87c92c;hpb=39aecbb4b0703dcc20f2062fb9cb0e520ca78176;p=warehouse-man-deluxe

diff --git a/src/gameboard.h b/src/gameboard.h
index 4452e25..9f59480 100644
--- a/src/gameboard.h
+++ b/src/gameboard.h
@@ -4,6 +4,11 @@
 enum { GTSpace=0x00, GTWall=0x01, GTBox=0x02, GTBoxSpot=0x04 };
 enum { PMInvalid, PMWalk, PMPush };
 
+struct UndoMove
+{
+	int dx, dy, type;
+};
+
 class GameBoard
 {
 	public:
@@ -23,9 +28,10 @@ class GameBoard
 		bool IsBoxSOfPlayer(void);
 		bool IsBoxEOfPlayer(void);
 		bool IsBoxWOfPlayer(void);
+		bool UndoLastMove(int &, int &, int &);
 
 	private:
-		int Move(int & var, int direction, char, char);
+		int Move(int dx, int dy, char, char);
 
 	public:
 		int playerX, playerY;		// Player X/Y are zero-based
@@ -36,6 +42,8 @@ class GameBoard
 		char * initialBoard;
 		int initialX, initialY;
 		int boardLength;
+		int numMoves;
+		UndoMove undo[8192];		// 8K moves ought to be enough for anybody
 };
 
 #endif	// __GAMEBOARD_H__