c# - 无法将类型对象隐式转换为 unityengine.Vector3

Question

我想在场景中放置六个物体(球)。我认为代码看起来可行，但我收到一条控制台消息。消息:

"Assets/GameScripts/Instance.cs(26,40): error CS0266: Cannot implicitly convert type object' toUnityEngine.Vector3'. An explicit conversion exists (are you missing a cast?)"

使用UnityEngine； 使用 System.Collections；

公共(public)类实例:MonoBehaviour { 公共(public)游戏对象球；

public ArrayList coordinateContainer = new ArrayList();



// Use this for initialization
void Start () {

    coordinateContainer.Add(new Vector3(1f,1f,1f));
    coordinateContainer.Add(new Vector3(2f,1f,1f));
    coordinateContainer.Add(new Vector3(3f,1f,1f));
    coordinateContainer.Add(new Vector3(4f,1f,1f));
    coordinateContainer.Add(new Vector3(5f,1f,1f));
    coordinateContainer.Add(new Vector3(6f,1f,1f));


    //ball.transform.position = new Vector3(1f,1f,1f);
    ball.transform.rotation = Quaternion.identity;

    for (int i = 0; i <  6; i++) {
        ball.transform.position = coordinateContainer[i];
        Instantiate(ball,ball.transform.position,ball.transform.rotation);
    }
}

// Update is called once per frame
void Update () {

}

}

Answer 1

由于您使用的是 ArrayList向量被存储为 objects 。试试这个

ball.transform.position = (Vector3)coordinateContainer[i];

List<Vector3> 可能会更好而不是 ArrayList ，这样您就可以避免强制转换(因为 List<T> 只能保存 T 类型的对象)。