OPC_HybridModel.h

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/*
 *  OPCODE - Optimized Collision Detection
 *  Copyright (C) 2001 Pierre Terdiman
 *  Homepage: http://www.codercorner.com/Opcode.htm
 */



// Include Guard
#ifndef __OPC_HYBRIDMODEL_H__
#define __OPC_HYBRIDMODEL_H__

    struct LeafTriangles
    {
        udword          Data;       


        inline_ udword  GetNbTriangles()                const   { return (Data & 15)+1;                                         }


        inline_ udword  GetTriangleIndex()              const   { return Data>>4;                                               }
        inline_ void    SetData(udword nb, udword index)        { OPASSERT(nb>0 && nb<=16); nb--;   Data = (index<<4)|(nb&15);  }
    };

    class OPCODE_API HybridModel : public BaseModel
    {
        public:
        // Constructor/Destructor
                                                    HybridModel();
        virtual                                     ~HybridModel();


        override(BaseModel) bool                    Build(const OPCODECREATE& create);


        override(BaseModel) udword                  GetUsedBytes()      const;


        override(BaseModel) bool                    Refit();


        inline_             const LeafTriangles*    GetLeafTriangles()  const   { return mTriangles;    }


        inline_             const udword*           GetIndices()        const   { return mIndices;      }

        private:
                            udword                  mNbLeaves;      
                            LeafTriangles*          mTriangles;     
                            udword                  mNbPrimitives;  
                            udword*                 mIndices;       

        // Internal methods
                            void                    Release();
    };

#endif // __OPC_HYBRIDMODEL_H__