#define MAX_BUF_XSIZE (2 + SCR_FIELDX + 2)
#define MAX_BUF_YSIZE (2 + SCR_FIELDY + 2)
/* often used screen positions */
#define MAX_BUF_XSIZE (2 + SCR_FIELDX + 2)
#define MAX_BUF_YSIZE (2 + SCR_FIELDY + 2)
/* often used screen positions */
#define SXSIZE (SCR_FIELDX * TILEX_VAR)
#define SYSIZE (SCR_FIELDY * TILEY_VAR)
#define FXSIZE (MAX_BUF_XSIZE * TILEX_VAR)
#define FYSIZE (MAX_BUF_YSIZE * TILEY_VAR)
#define SXSIZE (SCR_FIELDX * TILEX_VAR)
#define SYSIZE (SCR_FIELDY * TILEY_VAR)
#define FXSIZE (MAX_BUF_XSIZE * TILEX_VAR)
#define FYSIZE (MAX_BUF_YSIZE * TILEY_VAR)