constraints/constraintextraction/orconstraintextraction.h

#ifndef __ORCONSTRAINT_EXTRACTION_H__
#define __ORCONSTRAINT_EXTRACTION_H__
/***************************************************************************************
 Autodesk(R) Open Reality(R) Samples
 
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***************************************************************************************/

//--- SDK include
#include <fbsdk/fbsdk.h>

#define ORCONSTRAINTEXTRACTION__CLASSNAME       ORConstraintExtraction
#define ORCONSTRAINTEXTRACTION__CLASSSTR        "ORConstraintExtraction"

class ORConstraintExtraction : public FBConstraint
{
    //--- declaration
    FBConstraintDeclare( ORConstraintExtraction, FBConstraint );

public:
    //--- Creation & Destruction
    virtual bool            FBCreate() override;                        
    virtual void            FBDestroy() override;                       

    //--- Animation node management
    virtual void            RemoveAllAnimationNodes() override;         
    virtual void            SetupAllAnimationNodes() override;          

    virtual bool            AnimationNodeNotify     ( FBAnimationNode* pAnimationNode, FBEvaluateInfo* pEvaluateInfo, FBConstraintInfo* pConstraintInfo ) override;

    //--- FBX Interface
    virtual bool            FbxStore    ( FBFbxObject* pFbxObject, kFbxObjectStore pStoreWhat );    
    virtual bool            FbxRetrieve ( FBFbxObject* pFbxObject, kFbxObjectStore pStoreWhat );    

    virtual bool            PlugNotify(FBConnectionAction pAction,FBPlug* pThis,int pIndex,FBPlug* pPlug = NULL,FBConnectionType pConnectionType=kFBConnectionTypeNone,FBPlug* pNewPlug=NULL) override;

    FBPropertyListObject    Character;

private:
    struct Node
    {
        FBBodyNodeId        mStartNode;
        FBBodyNodeId        mEndNode;
        
        FBAnimationNode*    mReadT;
        FBAnimationNode*    mWriteT;
        double              mLength;
        
        Node(FBBodyNodeId pNodeA, FBBodyNodeId pNodeB)
        {
            mStartNode = pNodeA;
            mEndNode = pNodeB;
            Clear();
        }

        ~Node()
        {
            Clear();
        }

        void ReferenceAdd(FBCharacter* pCharacter, FBConstraint* pConstraint, int pGroup);

        void Setup(FBCharacter* pCharacter, FBConstraint* pConstraint, int pIndex);

        void Clear()
        {
            mReadT = NULL;
            mWriteT = NULL;
            mLength = 1e10;
        }

        void Solve(FBCharacter* pCharacter, FBConstraint* pConstraint, FBEvaluateInfo* pEvaluateInfo);
    };

    FBArrayTemplate<Node*>  mNodes;
    int                     mReferenceGroup;
};

#endif  /* __ORCONSTRAINT_EXTRACTION_H__ */