Well the first idea was mainly going to be used to test if it was possible to do with my skill set (which it is). Now I was wondering would it be better to not go pixel by pixel, but instead make the dots go by the size of the bullet (mainly just the height, the width would equal the height)? This way I could clearly if the player could be hit or not by placing the player in that area.
Also,the way you described it on post #10, are saying that where ever the bullet is located set that pixel value zero? Then the higher the pixel value the colder that area is?