Unity Swipe功能问题

Question

我在为游戏创建滑动控件时遇到了一些麻烦。我正在尝试重新创建地铁冲浪者游戏的控件，其中在Touch.Moved阶段而不是Touch.End阶段检测到滑动。现在，它在大多数情况下都可以工作，但有时(通常)垂直滑动会被处理为水平滑动。我已经提交了下面的代码，提前感谢您的帮助。

       int swipeIndex = -1; //index of first detected swipe to prevent multiple swipes
       Vector2 startPos = Vector.zero; //starting position of touch
       //minSwipeDist is the distance in inches the player must swipe for a correct swipe
       for (int i = 0; i < Input.touchCount; i++) {
            Touch touch = Input.touches[i];
            switch (touch.phase) {
                case TouchPhase.Began:
                    if (swipeIndex == -1) {
                        swipeIndex = i;
                        startPos = touch.position;
                    }
                    break;
                case TouchPhase.Moved:
                    if(i != swipeIndex)
                        break;
                    Vector2 direction = touch.position - startPos;
                    //vertical swipe
                    if (Mathf.Abs(direction.x) < Mathf.Abs(direction.y)) {
                        //swipe up
                        if ((touch.position.y - startPos.y) > minSwipeDist) {
                            //Process Up swipe
                            swipeIndex = -1;
                        }
                        //swipe down
                        else if ((touch.position.y - startPos.y) < -minSwipeDist) {
                            //Process down swipe
                            swipeIndex = -1;
                        }
                    }
                    //horizontal swipe
                    else {
                        //swipe left
                        if ((touch.position.x - startPos.x) < -minSwipeDist) {
                            //process left swipe
                            swipeIndex = -1;
                        }
                        //swipe right
                        else if ((touch.position.x - startPos.x) > minSwipeDist) {
                            //process right swipe
                            swipeIndex = -1;
                        }
                    }
                    break;
            }
        }

Answer 1

我认为你应该把你的代码从TouchPhase.Moved转移到TouchPhase.Ended。基本上，当使用TouchPhase.Began时，你会得到接触点，然后在TouchPhase.Moved中不断更新你的第二个点，然后在TouchPhase.Ended中处理这两个点。