Method eatBox

Source/Engine/Animations/Graph/AnimGraph.cpp:479–525

}

VisjectExecutor::Value AnimGraphExecutor::eatBox(Node* caller, Box* box)
{
    auto& context = *Context.Get();

    // Check if graph is looped or is too deep
    if (context.StackOverFlow)
        return Value::Zero;
    if (context.CallStack.Count() >= ANIM_GRAPH_MAX_CALL_STACK)
    {
        OnError(caller, box, TEXT("Graph is looped or too deep!"));
        context.StackOverFlow = true;
        return Value::Zero;
    }
#if !BUILD_RELEASE
    if (box == nullptr)
    {
        OnError(caller, box, TEXT("Null graph box!"));
        return Value::Zero;
    }
#endif

    // Add to the calling stack
    context.CallStack.Add(caller);

#if USE_EDITOR
    Animations::DebugFlowInfo flowInfo;
    flowInfo.Asset = _graph._owner;
    flowInfo.Instance = context.Data->Object;
    flowInfo.NodeId = box->GetParent<Node>()->ID;
    flowInfo.BoxId = box->ID;
    const auto* nodePath = context.NodePath.Get();
    for (int32 i = 0; i < context.NodePath.Count(); i++)
        flowInfo.NodePath[i] = nodePath[i];
    Animations::DebugFlow(flowInfo);
#endif

    // Call per group custom processing event
    Value value;
    const auto parentNode = box->GetParent<Node>();
    const ProcessBoxHandler func = _perGroupProcessCall[parentNode->GroupID];
    (this->*func)(box, parentNode, value);

    // Remove from the calling stack
    context.CallStack.RemoveLast();

    return value;
}

VisjectExecutor::Graph* AnimGraphExecutor::GetCurrentGraph() const
{