如何通过触摸左右移动？

Question

我想从整个屏幕向左右移动字符，如果我从任何地方向左或向右移动，它只需要移动我现在有多少= 1.5f

我有此代码，可以完美运行，但仅适用于鼠标，不适用于触摸屏：

if (!isMoving && Input.GetMouseButtonDown(0))
{
    desiredPos = transform.position + Vector3.right * 1.52f;
    isMoving = true;
}

if (!isMoving && Input.GetMouseButtonDown(1))
{
    desiredPos = transform.position - Vector3.right * 1.52f;
    isMoving = true;
}

if (isMoving)
{
    transform.position = Vector3.MoveTowards(transform.position, desiredPos, moveSpeed * Time.deltaTime);

    // this == is true if the difference between both
    // vectors is smaller than 0.00001
    if (transform.position == desiredPos)
    {
        isMoving = false;

        // So in order to eliminate any remaining difference
        // make sure to set it to the correct target position
        transform.position = desiredPos;
    }
}

我尝试实现此代码，但这不起作用

private void Update()
{
    timer += Time.deltaTime;

    int i = 0;
    //loop over every touch found
    while (i < Input.touchCount)
    {
        if (!isMoving && Input.GetTouch(i).position.x > ScreenWidth / 2)
        {
            //move right
            desiredPos = transform.position + Vector3.right * 1.52f;
            isMoving = true;
        }
        if (!isMoving && Input.GetTouch(i).position.x < ScreenWidth / 2)
        {
            //move left
            desiredPos = transform.position - Vector3.right * 1.52f;
            isMoving = true;
        }
        ++i;
    }


    if (isMoving)
    {
        transform.position = Vector3.MoveTowards(transform.position, desiredPos, moveSpeed * Time.deltaTime);

        // this == is true if the difference between both
        // vectors is smaller than 0.00001
        if (transform.position == desiredPos)
        {
            isMoving = false;

            // So in order to eliminate any remaining difference
            // make sure to set it to the correct target position
            transform.position = desiredPos;
        }
    }
}

第二个代码向左或向右移动字符太多，我需要像第一个代码中一样精确移动，但触摸向左或向右滑动。

我想要这样的东西精确地移动1.5f

Answer 1

要与GetMouseButtonDown表现相同，还需要检查一下触摸的短语：

Input.GetTouch(i).phrase == TouchPhase.Began