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#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_ */
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