Lines Matching defs:ydiff
480 int xdiff, ydiff;
489 ydiff = sp->beacon[bn].y - p.ypos;
490 ydiff = SGN(ydiff);
491 if (xdiff != displacement[p.dir].dx || ydiff != displacement[p.dir].dy)
500 ydiff = sp->beacon[dest_no].y - sp->beacon[bn].y;
504 ydiff = sp->exit[dest_no].y - sp->beacon[bn].y;
508 ydiff = sp->airport[dest_no].y - sp->beacon[bn].y;
513 if (xdiff == 0 && ydiff == 0)
515 p.new_dir = DIR_FROM_DXDY(xdiff, ydiff);