public Tank(int x,int y,boolean camp,TankClient tc)  //Tankʼ
	{
		this.x=x;
		this.y=y;
		this.oldx=x;
		this.oldy=y;
		this.tc=tc;
		this.camp=camp;
		
		int i=rn.nextInt(4);
		if(0==i) { this.tankDir=TANK_DIR.U; }
		else if(1==i) { this.tankDir=TANK_DIR.D; }
		else if(2==i) { this.tankDir=TANK_DIR.L; }
		else if(3==i) { this.tankDir=TANK_DIR.R; }
		this.moveDir=TANK_DIR.STOP;
		this.setTurretDir(tankDir);
	}