hi guys. i'm making a space shooter w/minib3d (irrelevant to my issue). i have two types of objects: enemies and bullets. ideas how i would go about doing collision detection? i have the following code but on the school macs (which is what i have to work with), well, it really sucks. i know it's not efficient too ( O(n^2) ), which is why i'm asking if anyone has any better ideas? enemies and bullets are TLists storing...enemies and bullets. thanks in advance!