AnimGraph_Stack_tobesimple2.cs

class GraphInstance : IAnimGraphInstance, IGraphLogic {
  public GraphInstance(EntityManager entityManager, Entity owner, PlayableGraph graph, Entity animStateOwner,
    AnimGraph_Stack graphAsset) {
    for (var i = 0; i < graphAsset.rootNodes.Count; i++) {
      var subGraph = graphAsset.rootNodes[i].Instatiate(entityManager, owner, graph, animStateOwner);
      subGraph.SetPlayableInput(0, m_RootPlayable, 0);

      var outputPort = 0;
      subGraph.GetPlayableOutput(0, ref m_RootPlayable, ref outputPort);

      var animStackEntry = new AnimStackEntry() {
        subGraph = subGraph,
        graphLogic = subGraph as IGraphLogic
      };
      m_subGraphs.Add(animStackEntry);
    }
  }

  public void Shutdown() {
    for (var i = 0; i < m_subGraphs.Count; i++) {
      m_subGraphs[i].subGraph.Shutdown();
    }
  }

  public void SetPlayableInput(int index, Playable playable, int playablePort) { }

  public void GetPlayableOutput(int index, ref Playable playable, ref int playablePort) {
    playable = m_RootPlayable;
    playablePort = 0;
  }

  public void UpdateGraphLogic(GameTime time, float deltaTime) {
    for (var i = 0; i < m_subGraphs.Count; i++) {
      if (m_subGraphs[i].graphLogic == null)
        continue;
      m_subGraphs[i].graphLogic.UpdateGraphLogic(time, deltaTime);
    }
  }

  public void ApplyPresentationState(GameTime time, float deltaTime) {
    for (var i = 0; i < m_subGraphs.Count; i++) {
      m_subGraphs[i].subGraph.ApplyPresentationState(time, deltaTime);
    }
  }

  struct AnimStackEntry {
    public IAnimGraphInstance subGraph;
    public IGraphLogic graphLogic;
  }

  Playable m_RootPlayable;
  List<AnimStackEntry> m_subGraphs = new List<AnimStackEntry>();
}