basic/geometry/IGS/IGS_MeshTri.h

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#ifndef _MESHTRI_H_
#define _MESHTRI_H_

#include "IGS_MeshBase.h"

class IGS_Mesh;

class IGS_MeshTri
:
        public IGS_MeshBase
{
public:
        class Triangle
        {
        public:
                int v0;                 //IAN IMPROVE: do these need to be ints?
                int v1;
                int v2;
                int n;                  //the normal pointer for the entire triangle
        };

        IGS_MeshTri();
        IGS_MeshTri( const IGS_MeshTri& right );
        IGS_MeshTri( const IGS_Mesh& right );

        void AddFacet( const MeshFacet& f );
        void AddTriangle( const int v0, const int v1, const int v2 );
        Vector4 ComputeNormalForTriangle( const int triangleNumber );
        int GetNumTriangles() const;
        const Triangle& GetTriangle( const int i ) const;
        virtual void Prepare( const IGS_Controller& controller );
        virtual void Render( const IGS_Controller& controller ) const;

protected:
        
        std::vector< Triangle > m_Triangles;
};

//=============================================================================
#endif

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