参考：http://www.xuanyusong.com/archives/1919
http://www.omuying.com/article/48.aspx
主要功能：
1.导出场景的配置文件
2.导出当前场景中资源的AssetBundle
3.客户端从服务器获取配置文件
4.解析配置文件，并根据配置文件下载AssetBundle
5.实例化并还原场景
1.场景设置：将需要导出的场景资源设置为预设
2.将场景配置导出为XML文件
[code]csharpcode：
using UnityEngine;
using UnityEditor;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.IO;
using System.Text;
public class ExportSceneToXml : Editor
{
[MenuItem("Assets/Export Scene To XML From Selection")]
static void ExportXML()
{
string path = EditorUtility.SaveFilePanel ("Save Resource", "", "New Resource", "xml");
if (path.Length != 0)
{
Object[] selectedAssetList = Selection.GetFiltered (typeof(Object), SelectionMode.DeepAssets);
//遍历所有的游戏对象
foreach (Object selectObject in selectedAssetList)
{
// 场景名称
string sceneName = selectObject.name;
// 场景路径
string scenePath = AssetDatabase.GetAssetPath(selectObject);
// 场景文件
//string xmlPath = path; //Application.dataPath + "/AssetBundles/Prefab/Scenes/" + sceneName + ".xml";
// 如果存在场景文件，删除
if(File.Exists(path)) File.Delete(path);
// 打开这个关卡
EditorApplication.OpenScene(scenePath);
XmlDocument xmlDocument = new XmlDocument();
// 创建XML属性
XmlDeclaration xmlDeclaration = xmlDocument.CreateXmlDeclaration("1.0", "utf-8", null);
xmlDocument.AppendChild(xmlDeclaration);
// 创建XML根标志
XmlElement rootXmlElement = xmlDocument.CreateElement("root");
// 创建场景标志
XmlElement sceneXmlElement = xmlDocument.CreateElement("scene");
sceneXmlElement.SetAttribute("sceneName", sceneName);
foreach (GameObject sceneObject in Object.FindObjectsOfType(typeof(GameObject)))
{
// 如果对象是激活状态
if (sceneObject.transform.parent == null && sceneObject.activeSelf)
{
// 判断是否是预设
if(PrefabUtility.GetPrefabType(sceneObject) == PrefabType.PrefabInstance)
{
// 获取引用预设对象
Object prefabObject = EditorUtility.GetPrefabParent(sceneObject);
if(prefabObject != null)
{
XmlElement gameObjectXmlElement = xmlDocument.CreateElement("gameObject");
gameObjectXmlElement.SetAttribute("objectName", sceneObject.name);
gameObjectXmlElement.SetAttribute("objectAssetURL", prefabObject.name);
XmlElement transformXmlElement = xmlDocument.CreateElement("transform");
// 位置信息
XmlElement positionXmlElement = xmlDocument.CreateElement("position");
positionXmlElement.SetAttribute("x", sceneObject.transform.position.x.ToString());
positionXmlElement.SetAttribute("y", sceneObject.transform.position.y.ToString());
positionXmlElement.SetAttribute("z", sceneObject.transform.position.z.ToString());
// 旋转信息
XmlElement rotationXmlElement = xmlDocument.CreateElement("rotation");
rotationXmlElement.SetAttribute("x", sceneObject.transform.rotation.eulerAngles.x.ToString());
rotationXmlElement.SetAttribute("y", sceneObject.transform.rotation.eulerAngles.y.ToString());
rotationXmlElement.SetAttribute("z", sceneObject.transform.rotation.eulerAngles.z.ToString());
// 缩放信息
XmlElement scaleXmlElement = xmlDocument.CreateElement("scale");
scaleXmlElement.SetAttribute("x", sceneObject.transform.localScale.x.ToString());
scaleXmlElement.SetAttribute("y", sceneObject.transform.localScale.y.ToString());
scaleXmlElement.SetAttribute("z", sceneObject.transform.localScale.z.ToString());
transformXmlElement.AppendChild(positionXmlElement);
transformXmlElement.AppendChild(rotationXmlElement);
transformXmlElement.AppendChild(scaleXmlElement);
gameObjectXmlElement.AppendChild(transformXmlElement);
sceneXmlElement.AppendChild(gameObjectXmlElement);
}
}
}
}
rootXmlElement.AppendChild(sceneXmlElement);
xmlDocument.AppendChild(rootXmlElement);
// 保存场景数据
xmlDocument.Save(path);
// 刷新Project视图
AssetDatabase.Refresh();
}
}
}
}
导出结果参考：
[code]xmlcode：
<?xml version="1.0" encoding="utf-8"?>
<root>
<scene sceneName="DongTaiJiaZaiTest">
<gameObject objectName="Box" objectAssetURL="Box">
<transform>
<position x="-1.293883" y="-0.07" z="1.41" />
<rotation x="270" y="0" z="0" />
<scale x="1" y="1" z="1" />
</transform>
</gameObject>
<gameObject objectName="meinv" objectAssetURL="meinv">
<transform>
<position x="-1.75" y="1.36" z="11.28" />
<rotation x="0" y="97.43578" z="0" />
<scale x="1.09" y="1.09" z="1.09" />
</transform>
</gameObject>
<gameObject objectName="Envirment" objectAssetURL="Envirment">
<transform>
<position x="0" y="0" z="0" />
<rotation x="0" y="0" z="0" />
<scale x="1" y="1" z="1" />
</transform>
</gameObject>
<gameObject objectName="RigidBodyFPSController" objectAssetURL="RigidBodyFPSController">
<transform>
<position x="4.89" y="1.46" z="0.87" />
<rotation x="0" y="253.2478" z="0" />
<scale x="1" y="1" z="1" />
</transform>
</gameObject>
<gameObject objectName="Sphere" objectAssetURL="Sphere">
<transform>
<position x="-2.63" y="3.28" z="-3.95" />
<rotation x="270" y="0" z="0" />
<scale x="1" y="1" z="1" />
</transform>
</gameObject>
</scene>
</root>
3.将预设打包为AssetBundle，并上传到服务器
打包Assetbundle编辑器脚本：
[code]csharpcode：
using UnityEngine;
using System.Collections;
using UnityEditor;
public class Test : Editor
{
[MenuItem("Custom Editor/Create AssetBunldes Main For Android")]
static void CreateAssetBunldesMainForAndroid()
{
//获取在Project视图中选择的所有游戏对象
Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);
//遍历所有的游戏对象
foreach (Object obj in SelectedAsset)
{
//本地测试：建议最后将Assetbundle放在StreamingAssets文件夹下，如果没有就创建一个，因为移动平台下只能读取这个路径
//StreamingAssets是只读路径，不能写入
//服务器下载：就不需要放在这里，服务器上客户端用www类进行下载。
string targetPath = Application.dataPath + "/StreamingAssets/" + obj.name + "Android" + ".assetbundle";
if (BuildPipeline.BuildAssetBundle(obj, null, targetPath, BuildAssetBundleOptions.CollectDependencies, BuildTarget.Android))
{
Debug.Log(obj.name + "资源打包成功");
}
else
{
Debug.Log(obj.name + "资源打包失败");
}
}
//刷新编辑器
AssetDatabase.Refresh();
}
[MenuItem("Custom Editor/Create AssetBunldes Main For iPhone")]
static void CreateAssetBunldesMainForiPhone()
{
//获取在Project视图中选择的所有游戏对象
Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);
//遍历所有的游戏对象
foreach (Object obj in SelectedAsset)
{
string targetPath = Application.dataPath + "/StreamingAssets/" + obj.name + "iPhone" + ".assetbundle";
if (BuildPipeline.BuildAssetBundle(obj, null, targetPath, BuildAssetBundleOptions.CollectDependencies, BuildTarget.iPhone))
{
Debug.Log(obj.name + "资源打包成功");
}
else
{
Debug.Log(obj.name + "资源打包失败");
}
}
//刷新编辑器
AssetDatabase.Refresh();
}
[MenuItem("Custom Editor/Create AssetBunldes ALL For Android")]
static void CreateAssetBunldesALLForAndroid()
{
Caching.CleanCache();
string Path = Application.dataPath + "/StreamingAssets/ALLAndroid.assetbundle";
Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);
foreach (Object obj in SelectedAsset)
{
Debug.Log("Create AssetBunldes name :" + obj);
}
//这里注意第二个参数就行
if (BuildPipeline.BuildAssetBundle(null, SelectedAsset, Path, BuildAssetBundleOptions.CollectDependencies, BuildTarget.Android))
{
AssetDatabase.Refresh();
}
else
{
}
}
[MenuItem("Custom Editor/Create AssetBunldes ALL For iPhone")]
static void CreateAssetBunldesALLForiPhone()
{
Caching.CleanCache();
string Path = Application.dataPath + "/StreamingAssets/ALLiPhone.assetbundle";
Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);
foreach (Object obj in SelectedAsset)
{
Debug.Log("Create AssetBunldes name :" + obj);
}
//这里注意第二个参数就行
if (BuildPipeline.BuildAssetBundle(null, SelectedAsset, Path, BuildAssetBundleOptions.CollectDependencies, BuildTarget.iPhone))
{
AssetDatabase.Refresh();
}
else
{
}
}
[MenuItem("Custom Editor/Create Scene For Android")]
static void CreateSceneALLForAndroid()
{
Caching.CleanCache();
Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);
foreach (Object obj in SelectedAsset)
{
string Path = Application.dataPath + "/StreamingAssets/" + obj.name + "Android" + ".unity3d";
string[] levels = { @"Assets/Scenes/ExportedScene/" + obj.name + ".unity" };
BuildPipeline.BuildPlayer(levels, Path, BuildTarget.Android, BuildOptions.BuildAdditionalStreamedScenes);
Debug.Log("Craete Scene" + Path + "Complete!!");
}
AssetDatabase.Refresh();
}
[MenuItem("Custom Editor/Create Scene For iPhone")]
static void CreateSceneALLForiPhone()
{
Caching.CleanCache();
Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);
foreach (Object obj in SelectedAsset)
{
string Path = Application.dataPath + "/StreamingAssets/" + obj.name + "iPhone" + ".unity3d";
string[] levels = { @"Assets/Scenes/ExportedScene/" + obj.name + ".unity" };
BuildPipeline.BuildPlayer(levels, Path, BuildTarget.iPhone, BuildOptions.BuildAdditionalStreamedScenes);
Debug.Log("Craete Scene" + Path + "Complete!!");
}
AssetDatabase.Refresh();
}
}
4.将服务器的路径修改到XML配置文件中，并将XML上传到服务器
5.在Unity客户端下载XML并解析，下载并实例化对应的资源
[code]csharpcode：
using UnityEngine;
using System.Collections;
using System.IO;
using System.Collections.Generic;
using System.Xml;
public class GetXMLDoc : MonoBehaviour
{
string filePath;
public string XMLDocURL = "http://************.xml";
void Awake ()
{
filePath = Application.persistentDataPath + "/XMLDoc1028.xml";
if (File.Exists (filePath)) {
File.Delete (filePath);
}
WWW www = new WWW (XMLDocURL);
StartCoroutine (DownloadXMLDoc (www));
}
IEnumerator DownloadXMLDoc (WWW www)
{
yield return www;
if (www.isDone) {
Debug.Log ("WWW is done");
byte[] bts = www.bytes;
int length = bts.Length;
CreateXMLDoc (filePath, bts, length);
}
}
void CreateXMLDoc (string path, byte[] info, int lenth)
{
Debug.Log ("Start to create XML");
Stream sw;
FileInfo t = new FileInfo (path);
if (!t.Exists) {
sw = t.Create ();
} else {
return;
}
sw.Write (info, 0, lenth);
sw.Close ();
sw.Dispose ();
Debug.Log ("XML create sucess");
LoadScene ();
// 下载完毕之后可以读取并进行实例化了
}
void LoadScene ()
{
Debug.Log ("开始加载");
if (File.Exists (filePath)) {
XmlDocument xmlDoc = new XmlDocument ();
xmlDoc.Load (filePath);
XmlNodeList nodeList = xmlDoc.SelectSingleNode ("root").ChildNodes;
foreach (XmlElement scene in nodeList) {
//因为我的XML是把所有游戏对象全部导出， 所以这里判断一下只解析需要的场景中的游戏对象
//JSON和它的原理类似
// if (!scene.GetAttribute("name").Equals("Assets/StarTrooper.unity"))
// {
// continue;
// }
foreach (XmlElement gameObjects in scene.ChildNodes) {
// 取得资源地址
string assetRUL = gameObjects.GetAttribute ("objectAssetURL");
string assetName = gameObjects.GetAttribute ("objectName");
Vector3 pos = Vector3.zero;
Vector3 rot = Vector3.zero;
Vector3 sca = Vector3.zero;
foreach (XmlElement transform in gameObjects.ChildNodes) {
foreach (XmlElement prs in transform.ChildNodes) {
if (prs.Name == "position") {
pos.x = float.Parse(prs.GetAttribute("x"));
pos.y = float.Parse(prs.GetAttribute("y"));
pos.z = float.Parse(prs.GetAttribute("z"));
// foreach (XmlElement position in prs.ChildNodes) {
// switch (position.Name) {
// case "x":
// pos.x = float.Parse (position.InnerText);
// break;
// case "y":
// pos.y = float.Parse (position.InnerText);
// break;
// case "z":
// pos.z = float.Parse (position.InnerText);
// break;
// }
// }
} else if (prs.Name == "rotation") {
rot.x = float.Parse (prs.GetAttribute("x"));
rot.y = float.Parse(prs.GetAttribute("y"));
rot.z = float.Parse(prs.GetAttribute("z"));
// foreach (XmlElement rotation in prs.ChildNodes) {
// switch (rotation.Name) {
// case "x":
// rot.x = float.Parse (rotation.InnerText);
// break;
// case "y":
// rot.y = float.Parse (rotation.InnerText);
// break;
// case "z":
// rot.z = float.Parse (rotation.InnerText);
// break;
// }
// }
} else if (prs.Name == "scale") {
sca.x = float.Parse (prs.GetAttribute("x"));
sca.y = float.Parse(prs.GetAttribute("y"));
sca.z = float.Parse(prs.GetAttribute("z"));
// foreach (XmlElement scale in prs.ChildNodes) {
// switch (scale.Name) {
// case "x":
// sca.x = float.Parse (scale.InnerText);
// break;
// case "y":
// sca.y = float.Parse (scale.InnerText);
// break;
// case "z":
// sca.z = float.Parse (scale.InnerText);
// break;
// }
// }
}
}
Debug.Log ("准备下载：" + assetRUL);
// 开始下载并实例化对象
Debug.Log (assetName + ":pos=" + pos);
Debug.Log (assetName + ":rot=" + pos);
Debug.Log (assetName + ":sca=" + pos);
StartCoroutine (DownloadAsset (new WWW (assetRUL), pos, rot, sca));
//拿到 旋转 缩放 平移 以后克隆新游戏对象
// GameObject ob = (GameObject)Instantiate(Resources.Load(asset), pos, Quaternion.Euler(rot));
// ob.transform.localScale = sca;
}
}
}
}
}
IEnumerator DownloadAsset (WWW www, Vector3 pos, Vector3 rot, Vector3 sca)
{
yield return www;
if (www.isDone) {
// yield return Instantiate(www.assetBundle.mainAsset,pos,pos,Quaternion.Euler(rot));
GameObject ob = (GameObject)Instantiate (www.assetBundle.mainAsset, pos, Quaternion.Euler (rot));
ob.transform.localScale = sca;
www.assetBundle.Unload (false);
}
}
}