public void shoot(){
		if(player.ammo > 0){	
			for(int i = 0; i < lasers.length; i++){
				if(lasers[i] == null){
					lasers[i] = new Laser(this,settings.shieldLaserColor, settings.laserSpeed,
							player.getCenterPointX(), player.getCenterPointY() - 20,
							Math.PI * 3, false, false,
							settings.laserWidth, settings.laserHeight, player);
					break;
				}
			}
			player.ammo--;
		}
		
	}