1 files changed, 48 insertions, 0 deletions
diff --git a/ver0/ttt.h b/ver0/ttt.h
new file mode 100644
index 0000000..c20a3d1
--- /dev/null
+++ b/ver0/ttt.h
@@ -0,0 +1,48 @@
+#ifndef _TTT_H_
+#define _TTT_H_
+
+#define TRUE (1)
+#define FALSE (0)
+
+#define IN
+#define OUT
+
+typedef unsigned int BOOL;
+
+//
+// Constants for each state a board square can be in and a programmer
+// defined type for these states.
+//
+#define X_MARK (-1)
+#define EMPTY  (0)
+#define O_MARK (+1)
+#define TIE    (+2)
+
+typedef signed char SQUARE;
+#define IS_SQUARE_EMPTY(x) (x == EMPTY)
+
+//
+// A (simple) representation of a tic tac toe position
+//
+#define BOARD_SIZE (3)
+
+typedef struct _POSITION
+{
+    SQUARE sWhoseTurn;
+    SQUARE sBoard[BOARD_SIZE][BOARD_SIZE];
+    unsigned int uNumEmpty;
+} POSITION;
+
+//
+// A representation of a move in a tic tac toe game
+//
+typedef unsigned int COORD;
+
+typedef struct _MOVE
+{
+    COORD cHpos;
+    COORD cVpos;
+    SQUARE sMark;
+} MOVE;
+
+#endif /* _TTT_H_ */