有时onmousedown事件（）在Unity方法执行，有时不 [英] Sometimes OnMouseDown() method in Unity executes, sometimes it does not

问题描述

所以我必须连接到四这段代码

So I have this code attached to a Quad.

public class ShapeGrid : MonoBehaviour {

public GameObject[] shapes;

void Start(){
    GameObject[,] shapeGrid = new GameObject[3,3];
    StartCoroutine(UpdateGrid());
}

IEnumerator UpdateGrid(){
    while (true) {
        SetGrid ();
        yield return new WaitForSeconds(2);
    }
}

void SetGrid(){
    int col = 3, row = 3;
    for (int y = 0; y < row; y++) {
        for (int x = 0; x < col; x++) {
            int shapeId = (int)Random.Range (0, 4.9999f);
            GameObject shape = Instantiate (shapes[shapeId]);
            shape.AddComponent<ShapeBehavior>();
            Vector3 pos = shapes [shapeId].transform.position;
            pos.x = (float)x*3;
            pos.y = (float)y*3;
            shapes [shapeId].transform.position = pos;
        }
    }
}

上面的脚本生成的游戏对象在运行时，到我指定的另一个脚本：

The script above generates Game Objects at run time, to which I assigned another script:

public class ShapeBehavior : MonoBehaviour {

    void OnMouseDown(){
        Debug.Log ("Destroy");
        Destroy (gameObject);
    }
}

的问题是，有时onmousedown事件（）执行，有时没有。我想不通为什么，以及如何解决它。

The problem is, sometimes the OnMouseDown() executes, sometimes it does not. I cannot figure out why , and how to fix it.

推荐答案

也许你不得不对撞机添加到所有的对象，因为OnMouse事件基于碰撞。以下是详细信息：统一文档 - onmousedown事件

Probably you have to add colliders to all of objects because OnMouse events are based on collisions. Here is detailed info: Unity Docs - OnMouseDown

编辑：一些会谈，我们发现，这个问题被实例化法后引起。

after some talks we find out that the problem was caused by Instantiate method.

这是百达更好的方式来填补所有的实例化方法参数如：

It's allways a better way to fill all of parameters in Instantiate method e.g

实例（预制，Vector3.zero，Quaternion.Identity）

如果你愿意，你可以实例化对象后更改这些参数。

if you want, you could change any of these parameters after instantiating object.

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