Unity场景导出XML并加载场景
发表于2018-10-17
为了尽可能加快从网络加载场景，我们通常可以把场景先导出成 XML，在使用时候在根据xml的配置进行加载完成场景的构建。把现有的场景导出xml需要使用到Unity的编辑类需要引入命名空间，unityEditor，直接把导出xml做成一个工具。
具体代码如下：
using UnityEngine;
using System.Collections;
using UnityEditor;
using System.Collections.Generic;
using System.Xml;
using System.IO;
using System.Text;
using LitJson;
using UnityEngine.SceneManagement;
public class MyEditor : Editor
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//将所有游戏场景导出为XML格式
[MenuItem ("GameObject/ExportXML")]
static void ExportXML ()
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string LevelName = SceneManager.GetActiveScene().name;
if (LevelName == "")
Debug.LogError("请保存你的场景");
string filepath = Application.dataPath + @"/StreamingAssets/"+LevelName+".xml";
//string filepath = Application.dataPath + @"/StreamingAssets/lv01.xml";
if (!File.Exists (filepath))
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File.Delete(filepath);
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XmlDocument xmlDoc = new XmlDocument();
XmlElement root = xmlDoc.CreateElement("gameObjects");
Debug.Log(UnityEditor.EditorBuildSettings.scenes[0]);
//遍历所有的游戏场景
foreach (UnityEditor.EditorBuildSettingsScene S in UnityEditor.EditorBuildSettings.scenes)
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Debug.Log("123");
//当关卡启用
if (S.enabled)
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//得到关卡的名称
string name = S.path;
//打开这个关卡
EditorApplication.OpenScene(name);
XmlElement scenes = xmlDoc.CreateElement("scenes");
scenes.SetAttribute("name",name);
foreach (GameObject obj in Object.FindObjectsOfType(typeof(GameObject)))
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if (obj.transform.parent == null)
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XmlElement gameObject = xmlDoc.CreateElement("gameObjects");
gameObject.SetAttribute("name",obj.name);
gameObject.SetAttribute("asset",obj.name + ".prefab");
XmlElement transform = xmlDoc.CreateElement("transform");
XmlElement position = xmlDoc.CreateElement("position");
XmlElement position_x = xmlDoc.CreateElement("x");
position_x.InnerText = obj.transform.position.x+"";
XmlElement position_y = xmlDoc.CreateElement("y");
position_y.InnerText = obj.transform.position.y+"";
XmlElement position_z = xmlDoc.CreateElement("z");
position_z.InnerText = obj.transform.position.z+"";
position.AppendChild(position_x);
position.AppendChild(position_y);
position.AppendChild(position_z);
XmlElement rotation = xmlDoc.CreateElement("rotation");
XmlElement rotation_x = xmlDoc.CreateElement("x");
rotation_x.InnerText = obj.transform.rotation.eulerAngles.x+"";
XmlElement rotation_y = xmlDoc.CreateElement("y");
rotation_y.InnerText = obj.transform.rotation.eulerAngles.y+"";
XmlElement rotation_z = xmlDoc.CreateElement("z");
rotation_z.InnerText = obj.transform.rotation.eulerAngles.z+"";
rotation.AppendChild(rotation_x);
rotation.AppendChild(rotation_y);
rotation.AppendChild(rotation_z);
XmlElement scale = xmlDoc.CreateElement("scale");
XmlElement scale_x = xmlDoc.CreateElement("x");
scale_x.InnerText = obj.transform.localScale.x+"";
XmlElement scale_y = xmlDoc.CreateElement("y");
scale_y.InnerText = obj.transform.localScale.y+"";
XmlElement scale_z = xmlDoc.CreateElement("z");
scale_z.InnerText = obj.transform.localScale.z+"";
scale.AppendChild(scale_x);
scale.AppendChild(scale_y);
scale.AppendChild(scale_z);
transform.AppendChild(position);
transform.AppendChild(rotation);
transform.AppendChild(scale);
gameObject.AppendChild(transform);
scenes.AppendChild(gameObject);
root.AppendChild(scenes);
xmlDoc.AppendChild(root);
xmlDoc.Save(filepath);
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//刷新Project视图， 不然需要手动刷新哦
AssetDatabase.Refresh();
Debug.LogError("场景保存完成！！");
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这里需要注意，代码会根据你场景的名字进行打包，需要注意的是需要把场景添加到
下面就是加载代码：
using UnityEngine;
using System.Collections;
using System.Xml;
using System.IO;
public class XML : MonoBehaviour ｛
// Use this for initialization
public string LeveName = "my";
public string FileName = "";
void Start ()
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//电脑和iphong上的路径是不一样的，这里用标签判断一下。
#if UNITY_EDITOR
string filepath = Application.dataPath +"/StreamingAssets"+"/"+LeveName+".xml";
#elif UNITY_IPHONE
string filepath = Application.dataPath +"/Raw"+"/my.xml";
#endif
//如果文件存在话开始解析。
if(File.Exists (filepath))
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XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(filepath);
XmlNodeList nodeList=xmlDoc.SelectSingleNode("gameObjects").ChildNodes;
foreach(XmlElement scene in nodeList)
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//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"))
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continue;
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foreach(XmlElement gameObjects in scene.ChildNodes)
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//string asset = "Prefab/" + gameObjects.GetAttribute("name");
if (FileName == "")
return;
string asset = FileName + "/" + gameObjects.GetAttribute("name");
Vector3 pos = Vector3.zero;
Vector3 rot = Vector3.zero;
Vector3 sca = Vector3.zero;
foreach(XmlElement transform in gameObjects.ChildNodes)
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foreach(XmlElement prs in transform.ChildNodes)
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if(prs.Name == "position")
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foreach(XmlElement position in prs.ChildNodes)
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switch(position.Name)
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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;
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｝else if(prs.Name == "rotation")
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foreach(XmlElement rotation in prs.ChildNodes)
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switch(rotation.Name)
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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;
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｝else if(prs.Name == "scale")
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foreach(XmlElement scale in prs.ChildNodes)
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switch(scale.Name)
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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;
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//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;
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这样就可以了，实现场景导出xml，在利用代码进行加载整个场景。
来自：https://blog.csdn.net/liang_704959721/article/details/78215901