實體化產生數百個專案而不是1個

我撰寫了一個腳本來檢測什么時候與我的游戲物件發生碰撞。當有東西與它發生碰撞時，碰撞可能會持續 1 - 2 秒，但我只希望生成一個游戲物件。當我運行場景并與它發生碰撞時，數百個游戲物件立即產生，一切都崩潰了。

我曾嘗試使用 Thread.Sleep() 和 IEnumerator waitor() 但到目前為止沒有運氣。

任何想法將不勝感激，我將附上下面的代碼

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Threading;

public class ColliderHit : MonoBehaviour
{
    public GameObject topLevelMenu;
    public GameObject sublevel;
    public GameObject topMenuItem;
    public GameObject menuItemTouched;
    public GameObject itemToSpawn;
    public bool topLevelItem;

    void OnTriggerEnter(Collider col)
    {
        if (col.gameObject.name != "" || col.gameObject.name == "RightHandVisual" || col.gameObject.name == "OculusHand_R" || col.gameObject.name == "HandGrabInteractor" || col.gameObject.name == "OVRHandPrefab")
        {

            if (topLevelItem)
            {
                topLevelMenu.SetActive(false);
                sublevel.SetActive(true);
                sublevel.transform.position = topMenuItem.transform.position;
                sublevel.transform.rotation = topMenuItem.transform.rotation;
            }
            else
            {
                StartCoroutine(waiter());
                var itemsPos = menuItemTouched.transform.position;
                var itemsRot = menuItemTouched.transform.rotation;
                var itemsSca = menuItemTouched.transform.localScale;
                GameObject spawned = Instantiate(itemToSpawn);
                spawned.transform.rotation = itemsRot;
                spawned.transform.localScale = itemsSca;
                var zpos = itemsPos.z - (0.1f);
                spawned.transform.position = new Vector3(itemsPos.x, itemsPos.y, zpos);
            }
        }
    }
    IEnumerator waiter()
    {
        //Wait for 4 seconds
        yield return new WaitForSeconds(4);;
    }
}

uj5u.com熱心網友回復：

按原樣修復代碼的解決方案

這不是協同程式的作業方式。需要等待的代碼需要在協程中：

bool isOnCollideCooldown = false;

void OnTriggerEnter(Collider col)
{
    if (col.gameObject.name != "" || col.gameObject.name == "RightHandVisual" || col.gameObject.name == "OculusHand_R" || col.gameObject.name == "HandGrabInteractor" || col.gameObject.name == "OVRHandPrefab")
    {

        if (topLevelItem)
        {
            topLevelMenu.SetActive(false);
            sublevel.SetActive(true);
            sublevel.transform.position = topMenuItem.transform.position;
            sublevel.transform.rotation = topMenuItem.transform.rotation;
        }
        else
        {
            // Return if it is instantiated
            if (isOnCollideCooldown) return;
            
            // Otherwise spawn and wait
            StartCoroutine(waiter());
            
        }
    }
}
IEnumerator waiter()
{
    // Go onto cooldown
    isOnCollideCooldown = true;
    
    // Spawn the object
    var itemsPos = menuItemTouched.transform.position;
    var itemsRot = menuItemTouched.transform.rotation;
    var itemsSca = menuItemTouched.transform.localScale;
    GameObject spawned = Instantiate(itemToSpawn);
    spawned.transform.rotation = itemsRot;
    spawned.transform.localScale = itemsSca;
    var zpos = itemsPos.z - (0.1f);
    spawned.transform.position = new Vector3(itemsPos.x, itemsPos.y, zpos);
    
    //Wait for 4 seconds
    yield return new WaitForSeconds(4);
    
    // Go off cooldown
    isOnCollideCooldown = false;
}

附加解決方案

問題是，當您生成物件時，它會立即與其他物件發生碰撞。因此，在帶有生成物件的腳本上，您可以使用以下內容：

Collider col;
public float noCollisionTime = 1;

void Awake() {
    col.enabled = false;
    StartCoroutine(EnableCollider());
}


IEnumerator EnableCollider()
{
    yield return new WaitForSeconds(noCollisionTime);
    col.enabled = true;
} 

uj5u.com熱心網友回復：

你可以嘗試宣告一個

bool isInstantiated = false;

和這樣的方法：

void ResetInstantiation()
{
    isInstantiated = false;
}

然后，檢查它是否已經被實體化：

else
{
    StartCoroutine(waiter());
    var itemsPos = menuItemTouched.transform.position;
    var itemsRot = menuItemTouched.transform.rotation;
    var itemsSca = menuItemTouched.transform.localScale;

    if (isInstantiated) return;

    GameObject spawned = Instantiate(itemToSpawn);
    spawned.transform.rotation = itemsRot;
    spawned.transform.localScale = itemsSca;
    var zpos = itemsPos.z - (0.1f);
    spawned.transform.position = new Vector3(itemsPos.x, itemsPos.y, zpos);

    isInstatiated = true;
    Invoke("ResetInstantiation", 4.0f);
}

這樣，您將值設定為 true 并停止實體化并在 4 秒后重置標志。（或任何你想要的）

標籤：C＃ unity3d 碰撞检测 实例化

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