Unity3D中二维自上而下的点和点击移动和旋转

Question

我正在研究指向并点击汽车的移动，但我只能按住点击汽车才能移动。我想在单击任意点时移动汽车。我写了这段代码。也可以顺利旋转吗？因为车有打滑，转弯的时候突然转了，你能帮帮我吗？

void Update()
{
    mousePosition = Input.mousePosition;
    mousePosition = Camera.main.ScreenToWorldPoint(mousePosition);
    marker.position = mousePosition;
    if (Input.GetMouseButton(0))
    {
        moveToPosition = true;
    }
    else if (Input.GetMouseButtonUp(0))
    {
        moveToPosition = false;
        SoundManagerScript.stopCarAudioSource.Play();
        SoundManagerScript.loopEngineAudioSource.Stop();
    }

    if (moveToPosition)
    {
        direction = new Vector2(mousePosition.x - transform.position.x, mousePosition.y - transform.position.y);
        transform.position = Vector2.Lerp(transform.position, mousePosition, moveSpeed);
        if (Vector3.Distance(transform.position, mousePosition) < 100f)
        {
            moveToPosition = false;
        }
        transform.up = direction * moveSpeed;
    }
}

Answer 1

目前您只有进入 OnMouseDrag 函数的代码，您使用的 Vector.Lerp 不正确。看起来 here 但长话短说，lerp 需要通过 Update 或 IEnumerable.

不断更新

举一个非常简单的例子，我建议尝试这样的事情；

//get your click to register to this function
void OnMouseClick()
{
    moveToPosition = true;
    mousePosition = Input.mousePosition;
    mousePosition = Camera.main.ScreenToWorldPoint(mousePosition);
}

void Update()
{
    if(moveToPosition)
    {
        increase += Time.deltaTime;
        direction = new Vector2(mousePosition.x - transform.position.x, mousePosition.y - transform.position.y);
        transform.position = Vector2.Lerp(transform.position, mousePosition, moveSpeed);
        Vector3 newDir = Vector3.RotateTowards(transform.forward, direction, step, 0.0F);
        transform.rotation = Quaternion.LookRotation(newDir);
        if(Vector3.Distance(transform.position, mousePosition) < 5f)
        {
            moveToPosition = false;
        }

    }
}

它未经测试，但足够基本，可以让您继续看到移动的东西。

Unity3D中二维自上而下的点和点击移动和旋转

2D top-down point and click movement and rotation in Unity3D

unity3d

animation

controls

2d

mouseevent