public void centerCamera(){
		cameraX = x + width/2 - Game.SCREEN_WIDTH/2;
		cameraY = y + height/2 - Game.SCREEN_HEIGHT/2;
		
		if(cameraX < 0){
			cameraX = 0;
		}
		
		if(cameraX > Game.WORLD_WIDTH - Game.SCREEN_WIDTH){
			cameraX = Game.WORLD_WIDTH - Game.SCREEN_WIDTH;
		}
		
		if(cameraY < 0){
			cameraY = 0;
		}
		
		if(cameraY > Game.WORLD_HEIGHT - Game.SCREEN_HEIGHT){
			cameraY = Game.WORLD_HEIGHT - Game.SCREEN_HEIGHT;
		}
	}