Lines Matching defs:xdiff
480 int xdiff, ydiff;
487 xdiff = sp->beacon[bn].x - p.xpos;
488 xdiff = SGN(xdiff);
491 if (xdiff != displacement[p.dir].dx || ydiff != displacement[p.dir].dy)
499 xdiff = sp->beacon[dest_no].x - sp->beacon[bn].x;
503 xdiff = sp->exit[dest_no].x - sp->beacon[bn].x;
507 xdiff = sp->airport[dest_no].x - sp->beacon[bn].x;
513 if (xdiff == 0 && ydiff == 0)
515 p.new_dir = DIR_FROM_DXDY(xdiff, ydiff);