added: better rendering implementation, easier to use, object updating and ye wasd and arrow keys to move the lights
original instructions: Can handle multiple light but for the demo I have only one so that I can FAKE the illusion that the light emits an orb/circle of light. That is just a costume. The Engine is the shadows on cast behind the 4 objects. The objects also light up when the lights get closer but that part isn't mathematically accurate. (Off by default)
