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)                { ASSERT(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__