/*
*	Pen colors for different objects.
*/
#define BG_PEN		0
#define BLACKPIECE_PEN	1
#define WHITEPIECE_PEN	2
#define OUTLINE_PEN	3
#define BLACKSQUARE_PEN	4
#define WHITESQUARE_PEN	5
#define TEXT_PEN	6
#define INPUT_PEN	7
#define HILITE_PEN	7

#define LEFT_OFFSET	12
#define TOP_OFFSET	 8
/* outer-dimensions */
#define SQUARE_WIDTH	40
#define SQUARE_HEIGHT	20
/* inner-dimensions */
#define SQUARE_IWIDTH	39
#define SQUARE_IHEIGHT	19

/* row 0..7, col 0..7 */
/* inner corners */
#define SQUARE_LHS(row,col)	(LEFT_OFFSET+col*SQUARE_WIDTH+1)	
#define SQUARE_TOP(row,col)	(TOP_OFFSET+row*SQUARE_HEIGHT+1)	

#define SQUARE_RHS(row,col)	(SQUARE_LHS(row,col)+SQUARE_IWIDTH-1)
#define SQUARE_BOTTOM(row,col)	(SQUARE_TOP(row,col)+SQUARE_IHEIGHT-1)

/* piece colors */
#define BLACK 0
#define WHITE 1

/* prototypes */
void AmiDrawCoords(int off, int reverse);
void AmiDrawGrid(void);
void AmiToggleSquare(UWORD row, UWORD col);
void AmiFlashSquare(UWORD row, UWORD col);
void AmiDrawSquare(UWORD row, UWORD col);
void AmiDrawSquares(void);
void AmiDrawPiece(UWORD piece, UWORD pccolor, UWORD row, UWORD col);
void AmiDrawBoard(void);