团结 |带有 phics2D Collider 的多点触控

Question

我在我的场景中创建了带有图像的 sprite，并使它们像按钮一样工作。我想要的只是所有按钮都像多点触摸屏一样同时工作。下面的代码是我从现在开始所做的。我使用具有游戏对象的 TouchList。我认为 TouchList.Count 会增加。但是，TouchList.Counts 始终显示 (number)1。我绝对不能同时触摸两个游戏对象，因为第一个触摸的游戏对象的状态更改为 "Exit"。如何在 TouchList 中添加触摸的游戏对象？

请告诉我如何修复此代码。

void Update () {

    if (Input.GetMouseButton(0) || Input.GetMouseButtonDown(0) || Input.GetMouseButtonUp(0)) {

        touchesOld = new GameObject[touchList.Count];
        touchList.CopyTo(touchesOld);
        touchList.Clear();

        Vector2 pos = Camera.main.ScreenToWorldPoint (Input.mousePosition);
        RaycastHit2D hit1 = Physics2D.Raycast(pos, Vector2.zero);

        //foreach (Touch touch in Input.touches) {
        if (hit1.collider != null) {
            GameObject recipient = hit1.transform.gameObject;
            touchList.Add(recipient);
            //Debug.Log ("recipient : " + hit1.transform.gameObject);
            Debug.Log ("I'm hitting "+hit1.collider.name);
            Debug.Log ("touchList.Count : " + touchList.Count);
            //recipient.SendMessage("OnColliderHit",hit1.point,SendMessageOptions.DontRequireReceiver);

            if (Input.GetMouseButtonDown(0)) {
                recipient.SendMessage("OnTouchDown",hit1.point,SendMessageOptions.DontRequireReceiver);
            }
            if (Input.GetMouseButtonUp(0)) {
                recipient.SendMessage("OnTouchUp",hit1.point,SendMessageOptions.DontRequireReceiver);
            }
            if (Input.GetMouseButton(0)) {
                recipient.SendMessage("OnTouchStay",hit1.point,SendMessageOptions.DontRequireReceiver);
            }

        }                                                   
        //}
        foreach (GameObject g in touchesOld) {
            if (!touchList.Contains(g)) {
                g.SendMessage("OnTouchExit",hit1.point,SendMessageOptions.DontRequireReceiver);
            }
        }
    }
}

Answer 1

这是我修改后的代码。它运行良好。:-)

void Update () {

    if (Input.GetMouseButton(0) || Input.GetMouseButtonDown(0) || Input.GetMouseButtonUp(0)) {

        touchesOld = new GameObject[touchList.Count];
        touchList.CopyTo(touchesOld);
        touchList.Clear();

        foreach (Touch touch in Input.touches) {
            Debug.Log ("touch.position : " + touch.position.ToString());
            Vector2 pos = Camera.main.ScreenToWorldPoint(touch.position);
            RaycastHit2D hit1 = Physics2D.Raycast(pos, Vector2.zero);
            if (hit1.collider != null) {
                GameObject recipient = hit1.transform.gameObject;
                touchList.Add(recipient);
                //Debug.Log ("recipient : " + hit1.transform.gameObject);
                Debug.Log ("I'm hitting "+hit1.collider.name);
                Debug.Log ("touchList.Count : " + touchList.Count);
                //recipient.SendMessage("OnColliderHit",hit1.point,SendMessageOptions.DontRequireReceiver);

                if (Input.GetMouseButtonDown(0)) {
                    recipient.SendMessage("OnTouchDown",hit1.point,SendMessageOptions.DontRequireReceiver);                 
                }
                if (Input.GetMouseButtonUp(0)) {
                    recipient.SendMessage("OnTouchUp",hit1.point,SendMessageOptions.DontRequireReceiver);                   
                }
                if (Input.GetMouseButton(0)) {
                    recipient.SendMessage("OnTouchStay",hit1.point,SendMessageOptions.DontRequireReceiver);
                }

            }                                                   
        }
        foreach (GameObject g in touchesOld) {
            if (!touchList.Contains(g)) {
                g.SendMessage("OnTouchExit",SendMessageOptions.DontRequireReceiver);
            }
        }
    }
}

团结 |带有 phics2D Collider 的多点触控

Unity | Multitouch with phics2D Collider

unity3d

touch

multi-touch