Unity - 分屏触摸输入在游戏中途随机停止工作

Question

我有一个简单的 3D 篮球游戏，我正在使用具有分屏多人模式的 Unity（v 2017.3.1f1 64 位）...基本上，如果你在屏幕的任一侧向上滑动，那一侧就会射一个球，我检查以确保无论你用多少手指滑动，每边只有一个球被射出，使用 Unity 触摸输入类中的手指 ID……一切似乎都工作正常，包括同时射击在两侧，但是它会随机停止在一侧工作，然后停止接受该侧的输入......有时它会在几秒钟后恢复，有时它只是在游戏的其余部分不起作用......我可以'似乎并没有一致地复制它，但它会经常发生......当我同时在每一侧使用多个手指时，它似乎也更频繁地发生，但是在每一侧使用一个手指时发生了，或者有时当只在一侧滑动......我确信代码可以写得更好，但我们希望让它保持简单尽可能明确...我在这里遗漏了什么吗？...是否有可能使 Touch 数组过载或类似的东西？..构建目标是 PC，并且在 Unity 编辑器和完整构建中都可以看到问题，在多个不同的触摸屏上，包括红外和电容屏...提前感谢您的帮助...这里是相关代码：

int screenMidPoint
int finId1 = -1;
int finId2 = -1;

 void Start()
{
    Input.multiTouchEnabled = true;
    screenMidPoint = Screen.width / 2;
}

void Update()
{

    if (Input.touchCount > 0)
    {
        foreach (var touch in Input.touches)
        {
            if (touch.phase == TouchPhase.Began)
            {
                //For left half screen
                if (touch.position.x <= screenMidPoint && finId1 == -1)
                {
                    p1StartPos = touch.position;
                    p1StartTime = Time.time;
                    finId1 = touch.fingerId;
                }
                //For right half screen
                else if (touch.position.x > screenMidPoint && finId2 == -1)
                {
                    p2StartPos = touch.position;
                    p2StartTime = Time.time;
                    finId2 = touch.fingerId;
                }
            }
            else if (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled)

            {
                if (touch.fingerId == finId1 && Time.time > p1NextFire)
                {
                    p1NextFire = Time.time + fireRate;
                    p1EndTime = Time.time;
                    p1EndPos = touch.position;
                    p1DeltaSwipe = p1EndPos - p1StartPos;

                    if (p1DeltaSwipe.y > 0)
                    {
                        // p1 Shoot code is here

                    }

                    finId1 = -1;

                }
                else if (touch.fingerId == finId2 && Time.time > p2NextFire)
                {
                    p2NextFire = Time.time + fireRate;
                    p2EndTime = Time.time;
                    p2EndPos = touch.position;
                    p2DeltaSwipe = p2EndPos - p2StartPos;

                    if (p2DeltaSwipe.y > 0)
                    {
                        // p2 Shoot code is here

                    }

                    finId2 = -1;

                }
            }
        }
    }

}

Answer 1

无论射速条件如何，当适当的触摸结束或取消时，您都应该重置 finId1 和 finId2。试试这个：

void Update()
{
    if (Input.touchCount > 0)
    {
        foreach (var touch in Input.touches)
        {
            if (touch.phase == TouchPhase.Began)
            {
                //For left half screen
                if (touch.position.x <= screenMidPoint && finId1 == -1)
                {
                    p1StartPos = touch.position;
                    p1StartTime = Time.time;
                    finId1 = touch.fingerId;
                }
                //For right half screen
                else if (touch.position.x > screenMidPoint && finId2 == -1)
                {
                    p2StartPos = touch.position;
                    p2StartTime = Time.time;
                    finId2 = touch.fingerId;
                }
            }
            else if (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled)
            {
                if (touch.fingerId == finId1)
                {
                    finId1 = -1;

                    p1EndTime = Time.time;
                    p1EndPos = touch.position;
                    p1DeltaSwipe = p1EndPos - p1StartPos;

                    if (p1DeltaSwipe.y > 0 && Time.time > p1NextFire)
                    {
                        p1NextFire = Time.time + fireRate;

                        // p1 Shoot code is here
                    }
                }
                else if (touch.fingerId == finId2)
                {
                    finId2 = -1;

                    p2EndTime = Time.time;
                    p2EndPos = touch.position;
                    p2DeltaSwipe = p2EndPos - p2StartPos;

                    if (p2DeltaSwipe.y > 0 && Time.time > p2NextFire)
                    {
                        p2NextFire = Time.time + fireRate;

                        // p2 Shoot code is here
                    }
                }
            }
        }
    }
}