u3d对象池

来源：互联网发布：mac 怎么卸载jenkins 编辑：程序博客网时间：2024/06/06 13:23
无聊，发一贴代码，对象池
using UnityEngine;using System.Collections;using System.Collections.Generic;/// <summary>/// Cache with LRU/// </summary>/// <typeparam name="T"></typeparam>public class MemoryCache<T> :IEnumerable{    protected class NodeInfo<T> {        public string key;        public T obj;    }    List<NodeInfo<T>> cacheQueue;    int cacheSize;/// <summary>    /// Cache with LRU/// </summary>/// <param name="size">cache size</param>    public MemoryCache(int size){        cacheQueue = new List<NodeInfo<T>>();        cacheSize = size;    }    /// <summary>    /// reset cache size    /// </summary>    /// <param name="size"></param>    public void SetCacheSize(int size) {        cacheSize = size;    }    /// <summary>    /// try get obj from cache    /// </summary>    /// <param name="key"></param>    /// <returns></returns>    public T GetFromCache(string key) {        var cacheObj = cacheQueue.Find(n => {            return n.key == key;        });        if (cacheObj == null) {            return default(T);        }        else {            cacheQueue.Remove(cacheObj);            cacheQueue.Insert(0, cacheObj);            return cacheObj.obj;        }    }    /// <summary>    /// add or update cache    /// </summary>    /// <param name="key"></param>    /// <param name="obj"></param>    public void Put(string key,T obj) {        var cacheObj = cacheQueue.Find(n => {            return n.key == key;        });        if (cacheObj == null) {            var newNode = new NodeInfo<T>();            newNode.key = key;            newNode.obj = obj;            cacheQueue.Insert(0, newNode);        }        else {            cacheObj.obj = obj;            cacheQueue.Remove(cacheObj);            cacheQueue.Insert(0, cacheObj);        }        Clear(cacheSize);    }    /// <summary>    /// remove node by key    /// </summary>    /// <param name="key"></param>    public void Remove(string key) {        var cacheNode = cacheQueue.Find(n => {            return n.key == key;        });        if (cacheNode!=null) {            cacheQueue.Remove(cacheNode);        }    }    /// <summary>    /// loop remove item until less than hold num    /// </summary>    /// <param name="hold"></param>    public void Clear(int hold) {        if (hold<0) {            hold = 0;        }        while (cacheQueue.Count > hold) {            cacheQueue.RemoveAt(cacheQueue.Count - 1);        }        //Resources.UnloadUnusedAssets();    }    public int GetCacheSize() {        return cacheQueue.Count;    }    public void PrintAll() {        for (int i = cacheQueue.Count-1; i >= 0; i--) {            var node = cacheQueue[i];            Debug.Log(node.key+":"+node.obj);        }    }    public IEnumerator GetEnumerator() {        return new MCEnum(this.cacheQueue);    }    protected class MCEnum : IEnumerator {        List<NodeInfo<T>> cacheQueue;        public MCEnum(List<NodeInfo<T>> cacheQueue) {            this.cacheQueue = cacheQueue;        }        int iter = -1;        public object Current {            get {                if (iter < cacheQueue.Count && iter >= 0) {                    return cacheQueue[iter].obj;                }                return null;            }        }        public bool MoveNext() {            iter++;            if (iter < cacheQueue.Count) {                return true;            }            return false;        }        public void Reset() {            iter = -1;        }    }}
0 0