对象池

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


public enum ObjectType //枚举类型 放入对象池的种类
{
    Apple,
    Siw,
    Melon,
    Peach,
    Strawberry
}
public class Level1Manager : MonoBehaviour {
    static Level1Manager s_Instance;//单例
    Dictionary<ObjectType, List<GameObject>> m_ObjectPool;//我的对象池
    Dictionary<ObjectType, GameObject> m_ObjectPre;//我的所有预制体
    public static Level1Manager Instance
    {
        get
        {
            return s_Instance;
        }
    }
    void Awake()
    {
        s_Instance = this;
    }
// Use this for initialization
void Start () {
        m_ObjectPool = new Dictionary<ObjectType, List<GameObject>>();//给对象池开辟空间
        m_ObjectPre = new Dictionary<ObjectType, GameObject>();
        m_ObjectPre[ObjectType.WereWolf] = Resources.Load(GameDefine.ApplePath) as GameObject;
        m_ObjectPre[ObjectType.GoldWolf] = Resources.Load(GameDefine.PeachPath) as GameObject;
        m_ObjectPre[ObjectType.WolfBoss] = Resources.Load(GameDefine.SiwPath) as GameObject;
        m_ObjectPre[ObjectType.WolfNormal] = Resources.Load(GameDefine.MelonPath) as GameObject;
        m_ObjectPre[ObjectType.Shell] = Resources.Load(GameDefine.Strawberry) as GameObject;
    }
    /// <summary>
    /// 创建水果
    /// </summary>
    /// <param name="fruit"></param>
    /// <param name="bornPos"></param>
    /// <param name="bornRot"></param>
    public GameObject CreatObject(ObjectType objecttype,Vector3 bornPos,Vector3 bornRot)
    {
        GameObject m_Obj;
        if (!m_ObjectPool.ContainsKey(objecttype))//如果字典里没有此Key值
        {
            m_ObjectPool.Add(objecttype, new List<GameObject>());//添加此Key
        }
        if (m_ObjectPool[objecttype].Count == 0)//如果对应对象池类型里面没有元素
        {
            m_Obj = Instantiate<GameObject>(m_ObjectPre[objecttype], bornPos, Quaternion.Euler(bornRot));
        }
        else
        {
            m_Obj = m_ObjectPool[objecttype][0];
            m_ObjectPool[objecttype][0].SetActive(true);//显示敌人
            m_ObjectPool[objecttype][0].transform.position = bornPos;
            m_ObjectPool[objecttype][0].transform.rotation = Quaternion.Euler(bornRot);
            m_ObjectPool[objecttype].Remove(m_Obj);
        }
        return m_Obj;
    }
    /// <summary>
    /// 销毁水果
    /// </summary>
    public void DestroyObject(GameObject obj)
    {
        obj.SetActive(false);//隐藏敌人
        ObjectPoolType temp = obj.AddComponent<ObjectPoolType>();//获取对象池类组件
        if (!m_ObjectPool.ContainsKey(temp.m_ObjType))//如果字典里没有此Key值
        {
            m_ObjectPool.Add(temp.m_ObjType, new List<GameObject>());//添加此Key
        }
        m_ObjectPool[temp.m_ObjType].Add(obj);//按照对象类型加入对象池
    }
}