如何在单击鼠标时禁用对象控制？

Question

当用户移动鼠标指针然后单击时，它是x轴对象。 物体以相同的鼠标指针位置落在地面上。 但是当物体掉落时，如果用户移动指针的位置，也会影响物体掉落的位置。 我只希望物体落在用户单击的位置上，而当物体落在地面上时不控制物体。 码：

public class Ball : MonoBehaviour {

    Rigidbody2D body;
    float mousePosInBlocks;

    void Start () {
        body = GetComponent<Rigidbody2D> ();
        body.isKinematic = true;

    }

    void Update () {

        if (Input.GetMouseButtonDown (0)) {

            body.isKinematic = false;
        }

        Vector3 ballPos = new Vector3 (0f, this.transform.position.y, 0f);
        mousePosInBlocks = Camera.main.ScreenToWorldPoint(Input.mousePosition).x;


        //not go outside from border
        ballPos.x = Mathf.Clamp (mousePosInBlocks, -2.40f, 2.40f);

        body.position = ballPos;
    }
}

Answer 1

我的评论如下。 出现鼠标单击后，退出该功能即可。 确实没有什么比这更多的了。

public class Ball : MonoBehaviour {

    Rigidbody2D body;
    float mousePosInBlocks;
    bool wasDropped = false;

    void Start () {
        body = GetComponent<Rigidbody2D> ();
        body.isKinematic = true;
    }

    void Update () {
        //Don't do anything after the ball is dropped.
        if(wasDropped)
            return;

        if (Input.GetMouseButtonDown (0)) {
            body.isKinematic = false;
            wasDropped = true;
        }

        Vector3 ballPos = new Vector3 (0f, this.transform.position.y, 0f);
        mousePosInBlocks = Camera.main.ScreenToWorldPoint(Input.mousePosition).x;
        //not go outside from border
        ballPos.x = Mathf.Clamp (mousePosInBlocks, -2.40f, 2.40f);

        body.position = ballPos;
    }
}