public void drawEnemies(Graphics g, Enemy enemy){
		if( enemy.getDirection() == Tank.direction_up){
			g.drawImage(enemy1Up, enemy.getLocation_x(), enemy.getLocation_y(), enemy.getWidth(), enemy.getHeight(), this);
		}else if(enemy.getDirection() == Tank.direction_down){
			g.drawImage(enemy1Down, enemy.getLocation_x(), enemy.getLocation_y(), enemy.getWidth(), enemy.getHeight(), this);
		}else if(enemy.getDirection() == Tank.direction_left){
			g.drawImage(enemy1Left, enemy.getLocation_x(), enemy.getLocation_y(), enemy.getHeight(), enemy.getWidth(), this);
		}else if(enemy.getDirection() == Tank.direction_right){
			g.drawImage(enemy1Right, enemy.getLocation_x(), enemy.getLocation_y(), enemy.getHeight(), enemy.getWidth(), this);
		}
	}