Function reset_xystart_size

src/sp_lev.c:205–212

#define TYP_CANNOT_MATCH(typ) ((typ) == MAX_TYPE || (typ) == INVALID_TYPE)

void
reset_xystart_size(void)
{
    gx.xstart = 1; /* column [0] is off limits */
    gy.ystart = 0;
    gx.xsize = COLNO - 1; /* 1..COLNO-1 */
    gy.ysize = ROWNO; /* 0..ROWNO-1 */
}

/* Does typ match with levl[][].typ, considering special types
   MATCH_WALL and MAX_TYPE (aka transparency)? */