Unity之C#代码自动更新原理总结

步骤：

1.创建C# dll 空工程TestCoreDll

2.添加库引用(该unity3d所需要用到dll,unity3d工程目录下Library\ScriptAssemblies中的库)

3.拷贝unity客户端代码至TestCoreDll工程目录下

4.点击菜单栏生成按钮下重新生成TestCoreDll，即生成TestCoreDll.dll文件

5.将TestCoreDll.dll备份至unity3d工程目录下，并修改器后缀名为TestCoreDll.bytes

6.使用BuildPipeline.BuildAssetBundle将TestCoreDll.bytes编译成对应的assetbundle，即TestCoreDll.assetbundle

7.使用程序集Assembly加载使用TestCoreDll.assetbundle中代码，至此C#代码自动更新原理结束

代码片段：如下

生成dll文件：

msbuild "%targetProjectName%.csproj" /p:Configuration=Release /p:DefineConstants="TRACE;UNITY_5;USE_ANIMEVENT_INT_PARAMETER;UNITY_ANDROID;LOAD_DLL" /m /nologo /clp:ErrorsOnly /flp1:logfile=errors.txt;errorsonly

生成assetBundle文件

BuildPipeline.BuildAssetBundle(obj, null, "Assets/StreamingAssets/ClientCore.assetbundle", BuildAssetBundleOptions.CollectDependencies, target);

使用程序集加载引用代码：

WWW www = new WWW(path);

AssetBundle bundle = www.assetBundle;

TextAsset asset = bundle.LoadAsset("TestCoreDll", typeof(TextAsset)) as TextAsset;

System.Reflection.Assembly assembly = System.Reflection.Assembly.Load(asset.bytes);
Type script = assembly.GetType("TestScript");

if (script != null)
{
gameObject.AddComponent(script);
}