public void renderLights(){
		for(LightSource source : lightSources){
			calculateShadows(source);
		}
		
		for(Player e : players){
			if(e.light != null) calculateShadows(e.light);
		}
		
		for(Mob e : mobs){
			if(e.light != null) calculateShadows(e.light);
		}
	}