Unity WebGL MoonSharp崩溃问题

当前Unity的代码更新方案基本都选择的ULua，而我们项目还需要考虑Web平台，ULua不支持WebGL，所以决定选择MoonSharp。MoonSharp(http://www.moonsharp.org/)是一个纯C#实现的Lua解释器，支持多种平台。

测试环境：Unity5.4 + WebGL + MoonSharp 1.6.0.0

测试代码：

double MoonSharpFactorial()
{
    string script = @"    
        -- defines a factorial function
        function fact (n)
            if (n == 0) then
                return 1
            else
                return n*fact(n - 1)
            end
        end

        return fact(5)";

    DynValue res = Script.RunString(script);
    return res.Number;
}

在Web浏览器中却崩溃了，后经过定位发现是MoonSharp.Interpreter.Loaders.UnityAssetsScriptLoader.LoadResourcesWithReflection出错，Bug和我的修改已经在GitHub提交给作者了，预计很快会合并到主干代码中。

void LoadResourcesWithReflection(string assetsPath)
{
    try
    {
        Type resourcesType = Type.GetType("UnityEngine.Resources, UnityEngine");
        Type textAssetType = Type.GetType("UnityEngine.TextAsset, UnityEngine");

        MethodInfo textAssetNameGet = textAssetType.GetProperty("name").GetGetMethod();
        MethodInfo textAssetTextGet = textAssetType.GetProperty("text").GetGetMethod();

        MethodInfo loadAll = resourcesType.GetMethod("LoadAll",
            new Type[] { typeof(string), typeof(Type) });

        Array array = (Array)loadAll.Invoke(null, new object[] { assetsPath, textAssetType });//此处崩溃，估计是Unity导出代码有Bug

        for (int i = 0; i < array.Length; i++)
        {
            object o = array.GetValue(i);

            string name = textAssetNameGet.Invoke(o, null) as string;
            string text = textAssetTextGet.Invoke(o, null) as string;

            m_Resources.Add(name, text);
        }
    }
    catch (Exception ex)
    {
#if !PCL
        Console.WriteLine("Error initializing UnityScriptLoader : {0}", ex);
#endif
    }
}

可以改为

void LoadResourcesWithReflection(string assetsPath)
{
    try
    {
#if UNITY_WEBGL
        UnityEngine.TextAsset[] arrayTextAsset = UnityEngine.Resources.LoadAll<UnityEngine.TextAsset>(assetsPath);
        for (int i = 0; i < arrayTextAsset.Length; i++)
        {
            UnityEngine.TextAsset text = arrayTextAsset[i];
            m_Resources.Add(text.name, text.text);
        }
        return;
#endif

        Type resourcesType = Type.GetType("UnityEngine.Resources, UnityEngine");
        Type textAssetType = Type.GetType("UnityEngine.TextAsset, UnityEngine");

        MethodInfo textAssetNameGet = textAssetType.GetProperty("name").GetGetMethod();
        MethodInfo textAssetTextGet = textAssetType.GetProperty("text").GetGetMethod();

        MethodInfo loadAll = resourcesType.GetMethod("LoadAll",
            new Type[] { typeof(string), typeof(Type) });

        Array array = (Array)loadAll.Invoke(null, new object[] { assetsPath, textAssetType });

        for (int i = 0; i < array.Length; i++)
        {
            object o = array.GetValue(i);

            string name = textAssetNameGet.Invoke(o, null) as string;
            string text = textAssetTextGet.Invoke(o, null) as string;

            m_Resources.Add(name, text);
        }
    }
    catch (Exception ex)
    {
#if !PCL
        Console.WriteLine("Error initializing UnityScriptLoader : {0}", ex);
#endif
    }
}