Objective c 多点触控和CCtouch移动，动作迟缓

我有一个乒乓球游戏，我用手指移动球拍。 只要有一个手指，一切都会顺利进行。但当我想控制两名球员时，两个桨，一个桨动作很好，但另一个桨动作很慢，如果有的话。当第二个桨开始移动时，我的第一个桨冻结了。我如何让这两个动作都感觉平滑和灵敏

我在我的控制器中启用了多点触摸

以下是我的触摸代码：

- (void) ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *myTouch = [touches anyObject];
    CGPoint location = [myTouch locationInView:[myTouch view]];
    location = [[CCDirector sharedDirector] convertToGL:location];
    CGRect leftTouchZone = CGRectMake(0, 0, 50, 320);
    CGRect rightTouchZone = CGRectMake(430, 0, 50, 320);

    if (CGRectContainsPoint(leftTouchZone, location))
    {
        CGPoint tempLoc = location;
        tempLoc.x = paddle1.position.x;
        paddle1.position = tempLoc;
    }

    if (CGRectContainsPoint(rightTouchZone, location))
    {
        CGPoint tempLoc = location;
        tempLoc.x = paddle2.position.x;
        paddle2.position = tempLoc;
    }

---

难道你不应该看你所有的触摸对象而不是抓住任何对象吗？如果您同时移动两个触摸，则只有一个触摸会被移动

- (void) ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    for (UITouch* myTouch in touches)
    {
        CGPoint location = [myTouch locationInView:[myTouch view]];
        location = [[CCDirector sharedDirector] convertToGL:location];
        CGRect leftTouchZone = CGRectMake(0, 0, 50, 320);
        CGRect rightTouchZone = CGRectMake(430, 0, 50, 320);

        if (CGRectContainsPoint(leftTouchZone, location))
        {
            CGPoint tempLoc = location;
            tempLoc.x = paddle1.position.x;
            paddle1.position = tempLoc;
        }

        if (CGRectContainsPoint(rightTouchZone, location))
        {
            CGPoint tempLoc = location;
            tempLoc.x = paddle2.position.x;
            paddle2.position = tempLoc;
        }
    }