#ifndef _ASE_H
#define _ASE_H

#include "Main.h"

// Below are a all the important tag defines for reading in a .Ase file.
// I added the normal ones just in case you want to you read them in instead
// of calculate them yourself.

#define OBJECT				"*GEOMOBJECT"			// An object tag for new objects
#define NUM_VERTEX			"*MESH_NUMVERTEX"		// The number of vertices tag
#define NUM_FACES			"*MESH_NUMFACES"		// The number of faces tag
#define NUM_TVERTEX			"*MESH_NUMTVERTEX"		// The number of texture coordinates
#define VERTEX				"*MESH_VERTEX"			// The list of vertices tag
#define FACE				"*MESH_FACE"			// The list of faces tag
#define NORMALS				"*MESH_NORMALS"			// The list of normals tag (If you want)
#define FACE_NORMAL			"*MESH_FACENORMAL"		// The face normal for the current index
#define NVERTEX				"*MESH_VERTEXNORMAL"	// The list of vertex normals
#define TVERTEX				"*MESH_TVERT"			// The texture coordinate index tag
#define TFACE				"*MESH_TFACE"			// The vertex index tag
#define TEXTURE				"*BITMAP"				// The file name for the object's texture map
#define UTILE				"*UVW_U_TILING"			// The U tiling ratio tag
#define VTILE				"*UVW_V_TILING"			// The V tiling ratio tag
#define UOFFSET				"*UVW_U_OFFSET"			// The U tile offset tag
#define VOFFSET				"*UVW_V_OFFSET"			// The V tile offset tag
#define MATERIAL_ID			"*MATERIAL_REF"			// The material ID tag
#define MATERIAL_COUNT      "*MATERIAL_COUNT"		// The material count tag
#define MATERIAL			"*MATERIAL"				// The material tag
#define MATERIAL_NAME		"*MATERIAL_NAME"		// The material name tag
#define MATERIAL_COLOR		"*MATERIAL_DIFFUSE"		// The material color tag


// This class holds all the data and function for loading in a .Ase file.
class CLoadASE 
{

public:

	// This is the only function the client needs to call to load the .ase file
	bool ImportASE(t3DModel *pModel, char *strFileName);

	// This is the main loop that parses the .ase file
	void ReadAseFile(t3DModel *pModel);

	// This returns the number of objects in the .ase file
	int GetObjectCount();

	// This returns the number of materials in the .ase file
	int GetMaterialCount();

	// This fills in the texture information for a desired texture
	void GetTextureInfo (tMaterialInfo *pTexture, int desiredMaterial);

	// This moves our file pointer to the desired object
	void MoveToObject (int desiredObject);

	// This reads in a float from the file
	float ReadFloat();

	// This reads a desired object's information (face, vertex and texture coord counts)
	void ReadObjectInfo(t3DObject *pObject, int desiredObject);

	// This gets the name of the texture
	void GetTextureName (tMaterialInfo  *pTexture);

	// This gets the name of the material
	void GetMaterialName(tMaterialInfo *pTexture);

	// This loads all the data for the desired object
	void ReadObjectData(t3DModel *pModel, t3DObject *pObject, int desiredObject);

	// This is the main load loop inside of ReadObjectData() that calls smaller load functions
	void GetData(t3DModel *pModel, t3DObject *pObject, char *strDesiredData, int desiredObject);

	// This reads in a vertice from the file
	void ReadVertex(t3DObject *pObject);

	// This reads in a texture coordinate from the file
	void ReadTextureVertex(t3DObject *pObject, tMaterialInfo texture);

	// This reads in the vertex indices for a face
	void ReadFace(t3DObject *pObject);

	// This reads in texture coordinate indices for a face
	void ReadTextureFace(t3DObject *pObject);

	// This computes the vertex normals for our objects
	void ComputeNormals(t3DModel *pModel);

private:
	
	// This is our file pointer to load the .ase file
	FILE *m_FilePointer;
};

#endif