Bullet stuff

added hitSomething(something) to bullets so they can react accordingly
some things need to be tested (damage seems to have gone up)
havent implemented the layer checks that were taking place in the
collidables since taking it out of there yet either
getting some error with images that needs to be checked out with
flamethrower (maybe its with hearts when out of hearts so could be
nothing to worry about cause will be fixed when we implement game end)