从脚本 Unity3d C# 中销毁脚本创建的对象

Question

破败好的，伙计们需要一点帮助。基本上，我是在一个开放位置的预制件中实例化一个 healthPack。经过一段时间后，如果没有拾取 HealthPack，我会尝试销毁它，将 bool healthPackExist 设置回 false，并在空闲位置实例化另一个 healthPack。

问题： 当我尝试访问正在实例化的游戏对象时，我最终要么破坏了整个父层次结构，要么只是擦掉了脚本。

解决方案 我试过销毁根对象，搜索创建对象的名称，向对象添加标签（Health Pack）并搜索它总是出错。

代码如下：

public GameObject healthPackPrefab;
public GameObject health;
private float healthTimer;
private bool healthExist;

// Use this for initialization
void Start () 
{
    //set healthExist to false to indicate no health packs exist on game start
    healthExist = false;
}

// Update is called once per frame
void Update () 
{
    //first check to see if a health pack exist, if not call method to spawn a health pack
    //otherwise check to see if one exist and if it does is it's timer created with it
    //has been passed by Time.time (returns game clock time), if yes destroy the created
    //health pack.
    if (healthExist == false) 
    {
        spawnUntilFull ();
    } 
    else if (healthExist == true && Time.time > healthTimer)
    {
        //Error occuring here when trying to destroy
        //Destroy(transform.root.gameObject)    //destroys script, object scripts on, and prefab
        Destroy(this.gameObject);   //does same as Destroy(transform.root.gameObject
        healthExist = false;
    }
}



Transform NextFreePosition()
{
    //free space
    foreach (Transform childPositionGameObject in transform) 
    {
        //if no health packs located return location of child object to spawn new health pack
        if (childPositionGameObject.childCount == 0) 
        {
            return childPositionGameObject;
        }
    }

    return null;
}

void spawnUntilFull()
{
    //returns next free position in space
    Transform freePosition = NextFreePosition ();

    //if free slot is available
    if (freePosition && healthExist == false) 
    {
        //instantiates health object and places it in scene at coordinates received from
        //freePosition
        health = Instantiate (healthPackPrefab, freePosition.position, Quaternion.identity) as GameObject;

        //spawns enemy onto a position under the Parent (Enemy Formation)
        health.transform.parent = freePosition;

        //set bool to true to stop spawning
        healthExist = true;

        //seat HealthTimer to 5 seconds after creation for use in Update method
        healthTimer = Time.time + 5.0f;
    }
}

Answer 1

当您调用 Destroy() 时，您实际上在做的是销毁脚本。要实现你想要的（销毁医疗包），你只需调用 Destroy 即可：

Destroy(health);

附带说明一下，为了避免使用 Time.time 的混乱代码，Destroy() 有一个使用两个参数的重载：

Destroy(GameObject object, float delay);

这应该有助于简化您的代码并使其更具可读性。

Answer 2

您可以在预制件上添加一个单独的脚本，其中包含您自定义的 DestroyObject 方法。

对象创建后立即在该脚本上启动计时器。

现在，如果在一定时间内没有收集到，您可以轻松销毁该对象。

从脚本 Unity3d C# 中销毁脚本创建的对象

Destroying an object created by a script from within the script Unity3d C#

c#

unity3d

unity5