TriangleMesh.h

#ifndef MIRO_TRIANGLE_MESH_H_INCLUDED
#define MIRO_TRIANGLE_MESH_H_INCLUDED

#include "Matrix4x4.h"

class TriangleMesh
{
public:
	TriangleMesh();
	~TriangleMesh();

	// load from an OBJ file
	bool load(char* file, const Matrix4x4& ctm = Matrix4x4());

	// for single triangles
	void createSingleTriangle();
	inline void setV1(const Vector3& v) {m_vertices[0] = v;}
	inline void setV2(const Vector3& v) {m_vertices[1] = v;}
	inline void setV3(const Vector3& v) {m_vertices[2] = v;}
	inline void setN1(const Vector3& n) {m_normals[0] = n;}
	inline void setN2(const Vector3& n) {m_normals[1] = n;}
	inline void setN3(const Vector3& n) {m_normals[2] = n;}

	struct TupleI3
	{
		unsigned int x, y, z;
	};

	struct VectorR2
	{
		float x, y;
	};

	Vector3* vertices() {return m_vertices;}
	Vector3* normals()  {return m_normals;}
	TupleI3* vIndices() {return m_vertexIndices;}
	TupleI3* nIndices() {return m_normalIndices;}
	int numTris()       {return m_numTris;}

protected:
	void loadObj(FILE* fp, const Matrix4x4& ctm);

	Vector3* m_normals;
	Vector3* m_vertices;
	VectorR2* m_texCoords;

	TupleI3* m_normalIndices;
	TupleI3* m_vertexIndices;
	TupleI3* m_texCoordIndices;
	unsigned int m_numTris;
};


#endif // MIRO_TRIANGLE_MESH_H_INCLUDED