Object3D_GL.h

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// 3DObject_GL.h
// OpenGL Screen implmentation
//
 
#ifndef _OBJECT3D_GL
#define _OBJECT3D_GL
 
#define DEBUG
 
#include "framework\Frm_Mesh.h" //based on the correct Mesh element
#include "GL\Screen_GL.h"
 
class ObjectBone{
        public:
        ObjectBone(void): _Bone(0){_TransformMatrix.Identity(); _CombinedMatrix.Identity(); _FinalMatrix.Identity();};
        ~ObjectBone(void);
 
   inline void CalcAttitude(ObjectBone* &pParentBone); //compute the Final Matrix
   void CalcBindSpace(void){_TransformMatrix = _Bone->_MatrixPos;}; //Sets up the original Matrix position as transformation matrix
 
   Frm::Bone* _Bone;
   Frm::glMatrix _TransformMatrix, _CombinedMatrix, _FinalMatrix;
   std::string _BoneName;
   std::list<ObjectBone*> _Bones;
};
 
class Object3D
{
   public:
                Object3D(void):_Skeletton(0), _SkinnedVertices(0), _Model(0){};
      ~Object3D(void){if (_SkinnedVertices!=0) delete[] _SkinnedVertices; /*if (_Skeletton!=0) delete _Skeletton;/**/}
      void SetupModel(Frm::Model3D* &pModel){
        _Model = pModel;
         _Mesh = _Model->_Meshes.front();
         _SkinnedVertices = new Frm::Vertex[_Mesh->_nVertices];
         _Skeletton = ReplicateSkeletton(_Model->_Skeletton);
         Update();
         ComputeBoundingBoxSphere();
         };
 
      //Vertices to render
      void ClearSkinnedVertices(void){memset(_SkinnedVertices, 0, _Mesh->_nVertices * sizeof(Frm::Vertex));};
 
      //Animation Based
      void UpdateBindSpace(void){CalcBindSpace(_Skeletton);CalcAttitude(_Skeletton,(ObjectBone*)0);SkinMesh(_Skeletton);};
      inline void CalcBindSpace(void){CalcBindSpace(_Skeletton);};
      inline void Update(void){CalcAttitude(_Skeletton,0);SkinMesh(_Skeletton);};
      void Draw(Screen_GL* pScreen);
 
      void ComputeBoundingBoxSphere(void);
      //Elements for the AABB (_Low & _High)
      //and bounding sphere (_Center & _Radius)
      Frm::Vertex _Low, _High, _Center;
      float _Radius;
 
   private:
      ObjectBone* _Skeletton;
      Frm::Mesh* _Mesh; //pointer to Model Mesh
      Frm::Vertex* _SkinnedVertices;
                Frm::Model3D* _Model;
 
      ObjectBone* ReplicateSkeletton(Frm::Bone* &pBone);
      void CalcAttitude(ObjectBone* pBone, ObjectBone* pParentBone);
      void CalcBindSpace(ObjectBone* pBone);
      void SkinMesh(ObjectBone* &pParentBone);
};
 
#endif