2011-Dec-31
Redcool007: Created page with "<p>The problem is when use WWW,if cached AssetBundle is exist, and you want load twice,unity will throw error. then can use this solution, if you like. </p> <b>AssetBundleDictio..."
<p>The problem is when use WWW,if cached AssetBundle is exist, and you want load twice,unity will throw error.
then can use this solution, if you like.
</p>
<b>AssetBundleDictionary</b> manage the cache resource.<br/>
<pre>
#pragma strict
import System.Collections.Generic;
//////////////////////////////////////////////////////
///工程,下载的资源管理
///AssetBundle字典.
///url为key,value:AssetBundle
//////////////////////////////////////////////////////
class AssetBundleDictionary{
/**资源字典.*/
private static var dict:Dictionary.<String,AssetBundle> = new Dictionary.<String,AssetBundle>();
static function Add(url:String,go:AssetBundle){
Remove(url);
dict.Add(url,go);
}
static function Remove(url:String){
if(Contains(url)){
dict[url].Unload(true);
dict.Remove(url);
}
}
static function Clear(){
dict.Clear();
}
/**
根据key获取一个AssetBundle
*/
static function Get(url:String):AssetBundle{
return dict[url];
}
/**
从 字典中获取 mainAsset
*/
static function GetMainAsset(url:String):Object{
if(Contains(url)){
return dict[url].mainAsset;
}
return null;
}
/**
字典中是否包含key
*/
static function Contains(url:String):boolean{
return dict.ContainsKey(url);
}
}
</pre>
<b>2 LoadComponent</b> , manage loading.
<pre>
#pragma strict
//////////////////////////////////////////////////////
///一个下载组件,下载时附加到GameObject
//////////////////////////////////////////////////////
/** www */
var www:WWW;
/** loading function */
var progressFun:Function;
/**
载入素材
@param url
@param version,为-1时,不从缓存载入.
@param onOk : function(prefab:Game):void
*/
function Load(url:String,version:int,onOk:Function){
if(version == -1){
www = WWW(url);
}else{
AssetBundleDictionary.Remove(url);
www = WWW.LoadFromCacheOrDownload(url,version);
}
yield WaitForLoading();
AssetBundleDictionary.Add(url, www.assetBundle);
onOk(AssetBundleDictionary.GetMainAsset(url));
}
/**载入文本.*/
function LoadText(url:String,onOk:Function){
www = WWW(url);
yield WaitForLoading();
onOk(www.text);
}
/**等待完成.*/
private function WaitForLoading(){
while(! www.isDone){
if(www.error){
Debug.Log(www.error);
break;
}
if(progressFun)
progressFun(www.progress);
yield;
}
}
</pre>
then can use this solution, if you like.
</p>
<b>AssetBundleDictionary</b> manage the cache resource.<br/>
<pre>
#pragma strict
import System.Collections.Generic;
//////////////////////////////////////////////////////
///工程,下载的资源管理
///AssetBundle字典.
///url为key,value:AssetBundle
//////////////////////////////////////////////////////
class AssetBundleDictionary{
/**资源字典.*/
private static var dict:Dictionary.<String,AssetBundle> = new Dictionary.<String,AssetBundle>();
static function Add(url:String,go:AssetBundle){
Remove(url);
dict.Add(url,go);
}
static function Remove(url:String){
if(Contains(url)){
dict[url].Unload(true);
dict.Remove(url);
}
}
static function Clear(){
dict.Clear();
}
/**
根据key获取一个AssetBundle
*/
static function Get(url:String):AssetBundle{
return dict[url];
}
/**
从 字典中获取 mainAsset
*/
static function GetMainAsset(url:String):Object{
if(Contains(url)){
return dict[url].mainAsset;
}
return null;
}
/**
字典中是否包含key
*/
static function Contains(url:String):boolean{
return dict.ContainsKey(url);
}
}
</pre>
<b>2 LoadComponent</b> , manage loading.
<pre>
#pragma strict
//////////////////////////////////////////////////////
///一个下载组件,下载时附加到GameObject
//////////////////////////////////////////////////////
/** www */
var www:WWW;
/** loading function */
var progressFun:Function;
/**
载入素材
@param url
@param version,为-1时,不从缓存载入.
@param onOk : function(prefab:Game):void
*/
function Load(url:String,version:int,onOk:Function){
if(version == -1){
www = WWW(url);
}else{
AssetBundleDictionary.Remove(url);
www = WWW.LoadFromCacheOrDownload(url,version);
}
yield WaitForLoading();
AssetBundleDictionary.Add(url, www.assetBundle);
onOk(AssetBundleDictionary.GetMainAsset(url));
}
/**载入文本.*/
function LoadText(url:String,onOk:Function){
www = WWW(url);
yield WaitForLoading();
onOk(www.text);
}
/**等待完成.*/
private function WaitForLoading(){
while(! www.isDone){
if(www.error){
Debug.Log(www.error);
break;
}
if(progressFun)
progressFun(www.progress);
yield;
}
}
</pre>
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