I have a Doom Beam that shoots in a straight line damaging all units in the line. I have the line pretty think so I'm using a periodic search with the offsets on the Y setup similar to Raynors snipe ability. The problem I'm running into is if the unit is a fatter target, say a beefy structure, it gets hit with the damage multiple times. Let's say I want to cause 500 damage to all units that hit the beam, if the unit happens to be big enough, the search would pick it up multiple times. I've set my radius pretty low actually, but if its going in a straight line through a large structure or unit, its still going to hit it more then once.
I'm hoping there is a quick trick or flag / validator to fix this.