// this is more precise: check if laser would go through the center
if ((ELX * TILEX + 14 - LX) * YS != (ELY * TILEY + 14 - LY) * XS)
{
+ int skip_count = 0;
+
// prevent cutting through laser emitter with laser beam
if (IS_LASER(element))
return TRUE;
{
LX += XS;
LY += YS;
+
+ skip_count++;
}
while (ELX == LX/TILEX && ELY == LY/TILEY && LX > 0 && LY > 0);
- if (LX/TILEX > ELX || LY/TILEY > ELY)
+ if ((LX/TILEX > ELX || LY/TILEY > ELY) && skip_count > 1)
{
/* skipping scan positions to the right and down skips one scan
position too much, because this is only the top left scan position
of totally four scan positions (plus one to the right, one to the
bottom and one to the bottom right) */
+ /* ... but only roll back scan position if more than one step done */
LX -= XS;
LY -= YS;