void eat(Tank tk)
	{
		if(!tk.isNPC)
		{
			
			switch(r2.nextInt(13)){
			case 0:
			tc.itemList.add(new HitPointItem(x,y,10,tc)); break;//TankѪ
			case 1:
				tc.itemList.add(new ShotsItem(x,y,0,tc)); break;//
			case 2:
				tc.itemList.add(new ShotsItem(x,y,1,tc)); break;//
			case 3:
				tc.itemList.add(new moneyItem(x,y,50,tc)); break;//
			case 4:
				tc.itemList.add(new freezeItem(x,y,4000,tc)); break;
			case 5:
				RobotTank.add(1,false,RobotTank.RTANKTYPE.SPE,tc,x,y);break;//
			case 6:
				RobotTank.add(1,false,RobotTank.RTANKTYPE.BOSS,tc,x,y);break;//
			case 7:
				RobotTank.add(1,false,RobotTank.RTANKTYPE.NOR,tc,x,y);break;//
			case 8:
				RobotTank.add(1,true,RobotTank.RTANKTYPE.SPE,tc,x,y);break;//
			case 9:
				RobotTank.add(1,true,RobotTank.RTANKTYPE.NOR,tc,x,y);break;//
			default:
				break;
			}
			
			
		}
	}