多個對象池的使用

對於多個對象池的使用，我提供了以下方式：

1，首先寫個管理類，記錄對象的生成方式：

我取名叫：MoreObjectPoolManager

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

public class MoreObjectPoolManager {
    private GameObject objPre;
    private int listSize;
    private bool isAutoGrow;
    private GameObject parentPoint;
    private List<GameObject> listObj;

    public MoreObjectPoolManager(GameObject _parentPoint,GameObject _obj,int _listSize,bool _isAutoGrow)
    {
        parentPoint = _parentPoint;
        objPre = _obj;
        listSize = _listSize;
        isAutoGrow = _isAutoGrow;
        listObj = new List<GameObject>();
        for (int i = 0; i < listSize; i++)
        {
            GameObject obj = GameObject.Instantiate(objPre);
            obj.transform.parent = parentPoint.transform;
            obj.SetActive(false);
            listObj.Add(obj);
        }
    }

    public GameObject GetGameObject()
    {
        for (int i = 0; i < listObj.Count; i++)
        {
            if (!listObj[i].activeSelf)
            {
                listObj[i].SetActive(true);
                return listObj[i];
            }
        }

        if (isAutoGrow)
        {
            GameObject obj = GameObject.Instantiate(objPre);
            obj.SetActive(true);
            obj.transform.parent = parentPoint.transform;
            listObj.Add(obj);
            return obj;
        }

        Debug.LogError("GetGameObject is null.");
        return null;
    }
	
}

這個類不用集成MonoBehaviour。

其次，寫個類用於控制它的多個對象池的管理，我命名爲：MoreObjectPool

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

[System.Serializable]
public struct ObjectPoolInfo
{
    public GameObject objPre;
    public int objPoolSize;
    public bool isAutoGrow;
}

public class MoreObjectPool: MonoBehaviour {
    public static MoreObjectPool instance;
    public ObjectPoolInfo[] objectPoolInfos;

    public Dictionary<string, MoreObjectPool> objectPools;
    void Awake () {
        instance = this;
        objectPools = new Dictionary<string, MoreObjectPool>();
        OnInit();
    }

    public void OnInit()
    {
        for (int i = 0; i < objectPoolInfos.Length; i++)
        {
            if (objectPools.ContainsKey(objectPoolInfos[i].objPre.name))
            {
                Debug.Log("對象已存在");
            }
            else
            {
                MoreObjectPoolManager morePool = new MoreObjectPoolManager (this.gameObject, objectPoolInfos[i].objPre, objectPoolInfos[i].objPoolSize, objectPoolInfos[i].isAutoGrow);
                objectPools.Add(objectPoolInfos[i].objPre.name, morePool);
            }
        }
    }

    public GameObject GetGameObjectPool(string objName)
    {
        return objectPools[objName].GetGameObject();
    }
}

把這個腳本綁定在場景中的一個對象身上。如圖：

圖中我綁定的腳本是錯誤的，但是內容是正確的。

最後應該在Camera上綁定一個點擊事件。我命名爲：GetMoreObjectPool

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

public class GetMoreObjectPool : MonoBehaviour {
	
	void Update () {
        if (Input.GetMouseButtonDown(0))
        {
            MoreObjectPoolManager.instance.GetGameObjectPool("Cube");
        }

        if (Input.GetMouseButtonDown(1))
        {
            MoreObjectPoolManager.instance.GetGameObjectPool("Sphere");
        }
    }
}

綁定在Camera上即可。

。這樣的話就可以了...