fixed ondestroy callback for shoots
camera angle following ship
refactor "think" for objects
refactor: moved 3d objects to separated js file
removed camara controls
enclosed different sections on IIFE
enclosed camera and scene on IIFE
enclosed creation of game state object
enclosed creation of renderer on IIFE
implemented cooldown and rate logic for shooting
added asteriods (spawn with intro key, no collisions yet)
fixed camera movement