Method load

Source/Engine/Content/Assets/VisualScript.cpp:1344–1536

#endif

Asset::LoadResult VisualScript::load()
{
    PROFILE_MEM(ScriptingVisual);

    // Build Visual Script typename that is based on asset id
    String typeName = _id.ToString();
    StringUtils::ConvertUTF162ANSI(typeName.Get(), _typenameChars, 32);
    _typenameChars[32] = 0;
    _typename = StringAnsiView(_typenameChars, 32);

    // Load metadata
    const auto metadataChunk = GetChunk(1);
    if (metadataChunk == nullptr)
        return LoadResult::MissingDataChunk;
    MemoryReadStream metadataStream(metadataChunk->Get(), metadataChunk->Size());
    int32 version;
    metadataStream.Read(version);
    switch (version)
    {
    case 1:
    {
        metadataStream.Read(Meta.BaseTypename, 31);
        metadataStream.Read((int32&)Meta.Flags);
        break;
    }
    default:
        LOG(Error, "Unknown Visual Script \'{1}\' metadata version {0}.", version, ToString());
        return LoadResult::InvalidData;
    }

    // Load graph
    const auto surfaceChunk = GetChunk(0);
    if (surfaceChunk == nullptr)
        return LoadResult::MissingDataChunk;
    MemoryReadStream surfaceStream(surfaceChunk->Get(), surfaceChunk->Size());
    if (Graph.Load(&surfaceStream, true))
    {
        LOG(Warning, "Failed to load graph \'{0}\'", ToString());
        return LoadResult::Failed;
    }

    // Find method nodes
    for (auto& node : Graph.Nodes)
    {
        switch (node.Type)
        {
        case GRAPH_NODE_MAKE_TYPE(16, 3):
        {
            // Override method
            auto& method = _methods.AddOne();
            method.Script = this;
            method.Node = &node;
            method.Name = StringAnsi((StringView)node.Values[0]);
            method.MethodFlags = (MethodFlags)((byte)MethodFlags::Virtual | (byte)MethodFlags::Override);
            method.Signature.Name = method.Name;
            method.Signature.IsStatic = false;
            method.Signature.Params.Resize(node.Values[1].AsInt);
            method.ParamNames.Resize(method.Signature.Params.Count());