對象池使用

之前做小遊戲整的，方便使用，存一下
代碼：

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

public class Poolmanagement : MonoBehaviour
{

    private Dictionary<string, Pool> manapool;   //字典，各種對象池的總結整理
    //public GameObject gamepool;   

    public static Poolmanagement instance; //單例


    // Use this for initialization
    public Poolmanagement()
    {
        manapool = new Dictionary<string, Pool>(); 初始化
    }

    private void Awake()
    {
        instance = this; //單例模式
    }

    void Start()
    {
    }

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

    }
    public T CreatGameObjectPool<T>(string poolName) where T : Pool, new()//這個函數用來新創建對象池。
    {
        if (manapool.ContainsKey(poolName))
        {
            return (T)manapool[poolName];
        }
      
       // GameObject obj = new GameObject(poolName);
        //obj.transform.SetParent(gamepool.transform);
        T pool = new T();
        
        manapool.Add(poolName, pool);
        return pool;

    }

    public GameObject GetGameObject(string poolName, Vector3 position ) //用來獲取對象池中對象，並判斷是否對象池存在，不存在就新建。
    {
        if (manapool.ContainsKey(poolName))
        {
            return manapool[poolName].Getprfabe(position,poolName);
        }
        else
        {
            return Poolmanagement.instance.CreatGameObjectPool<Pool>(poolName).Getprfabe(position, poolName);
        }
    }



    public void RemoveGameObject(string poolName, GameObject go) //用來移除對象，同樣進行判斷
    {
        if (manapool.ContainsKey(poolName))
        {
            manapool[poolName].Delprefab(go);
            print("in remove");
        }
        else
        {
            Poolmanagement.instance.CreatGameObjectPool<Pool>(poolName);
            manapool[poolName].Delprefab(go);
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Pool : MonoBehaviour {
    private string poolname;
    private int maxcountofprefab;//對象池裏面最大數量
    private GameObject prefab;//對象池裏面實例化對象
    public Queue<GameObject> prefabqueue;//pool隊列
    public Pool()
    {
        prefabqueue = new Queue<GameObject>();
    }
    //public void Init(Vector3 vector3)
    //{
    //    GameObject.Instantiate(gameObject, vector3, Quaternion.identity);
    //}
    public GameObject Getprfabe(Vector3 vector3,string name) //獲取對象池中prefab
    {
        
        if (prefabqueue.Count > 0)
        {
            prefab = prefabqueue.Dequeue(); //對象存在就出隊列
            prefab.transform.position = vector3;
            prefab.SetActive(true);
            return prefab;
        }
        else //不存在就按照名字加載資源，
        {
            GameObject gameObject = Resources.Load(name) as GameObject;
            prefab =GameObject.Instantiate(gameObject);
            prefab.transform.position = vector3;
            return prefab;
        }
        print(name + "   " + prefabqueue.Count);
    }
    public void Delprefab(GameObject prefab) //刪除物體，進入對象池
    {
        if (prefabqueue.Contains(prefab)) //看對象池中是否有這個prefab，有的話就隱藏
        {
           // Destroy(prefab.GetComponent<MoveForward>());
            prefab.SetActive(false);
        }
        else
        {
            //Destroy(prefab.GetComponent<MoveForward>());
            prefab.SetActive(false); //如果沒有，那就狀態設置false後，進入隊列
            prefabqueue.Enqueue(prefab);         
        }
    }
}

使用：

 GameObject bullet = Poolmanagement.instance.GetGameObject("bullet", firePos.position);

Poolmanagement.instance.RemoveGameObject("bullet", bullet);

然後再設置相關Bullet的屬性。