Some example producers: -Overlap/Hit collision event generates TargetData about who was hit in a melee attack -A mouse input causes a hit trace and the actor infront of the crosshair is turned into TargetData -A mouse input causes TargetData to be generated from the owner's crosshair view origin/direction -An AOE/aura pulses and all actors in a radius around the instigator are added to TargetData -Panzer Dragoon style 'painting' targeting mode -MMORPG style ground AOE targeting style (potentially both a location on the ground and actors that were targeted)