#pragma once

#include "CAnimTreeDoubleChild.hpp"

namespace urde
{

class CAnimTreeTweenBase : public CAnimTreeDoubleChild
{
    static s32 sAdvancementDepth;
protected:
    int x1c_flags;
    bool x20_24_b1 : 1;
    u8 x20_25_cullSelector : 2;
public:
    CAnimTreeTweenBase(bool,
                       const std::weak_ptr<CAnimTreeNode>& a,
                       const std::weak_ptr<CAnimTreeNode>& b,
                       int, std::string_view name);

    virtual void SetBlendingWeight(float w)=0;
    virtual float VGetBlendingWeight() const=0;

    float GetBlendingWeight() const { return VGetBlendingWeight(); }

    void VGetWeightedReaders(rstl::reserved_vector<std::pair<float, std::weak_ptr<IAnimReader>>, 16>& out, float w) const;
    float VGetRightChildWeight() const { return GetBlendingWeight(); }

    void VGetSegStatementSet(const CSegIdList& list, CSegStatementSet& setOut) const;
    void VGetSegStatementSet(const CSegIdList& list, CSegStatementSet& setOut, const CCharAnimTime& time) const;
    bool VHasOffset(const CSegId& seg) const;
    zeus::CVector3f VGetOffset(const CSegId& seg) const;
    zeus::CQuaternion VGetRotation(const CSegId& seg) const;

    std::experimental::optional<std::unique_ptr<IAnimReader>> VSimplified();
    virtual std::experimental::optional<std::unique_ptr<IAnimReader>> VReverseSimplified()
    { return CAnimTreeTweenBase::VSimplified(); }

    static bool ShouldCullTree() { return 3 <= sAdvancementDepth; }
    static void IncAdvancementDepth() { sAdvancementDepth++; }
    static void DecAdvancementDepth() { sAdvancementDepth--; }
};

}