#include "windows.h"
#include "CCMesh.h"



u32	MeshReadLine(FILE *F,char *LineFeed)
{
	u32	LineL;
	u32 NotFinish;
	char PreviousType;
	PreviousType = 100;
	LineL =	0;
	do {
		NotFinish =	fread(&LineFeed[LineL],1,1,F);
		if ((LineFeed[LineL] < 32)	&& (LineFeed[LineL]	!= '\n')) LineFeed[LineL] =	32;
		if ((PreviousType == 32) &&	(LineFeed[LineL] ==	32))
			LineL --;
		PreviousType = LineFeed[LineL];
	}
	while ((LineFeed[LineL++] != '\n') && (NotFinish));
	LineFeed[LineL]	= 0;
	if (LineL && (LineFeed[LineL-1]	== '\n'))
		LineFeed[LineL-1] =	0;
	return NotFinish;
}


u32 LoadObj(Mesh *LoadMesh,FILE *F)
{
	u32 NotFinish;
	LoadMesh->Destroy();
	NotFinish = 1;
	while (NotFinish)
	{
		u32 K;
		Vector V,VT;
		u32 Indexes[12];
		char LineFeed[2048];
		u32	 IsCommented;
		NotFinish = MeshReadLine(F,LineFeed);
		switch (LineFeed[0])
		{
		case 'v':
			if (LineFeed[1] == ' ')
			{
				if (sscanf(LineFeed + 2,"%f %f %f",&V.x,&V.y,&V.z) == 3)
					LoadMesh->Vertex(V.x,V.y,-V.z);
			}
			if (LineFeed[1] == 't')
			{
				if (sscanf(LineFeed + 3,"%f %f %f",&V.x,&V.y,&V.z) == 3)
					LoadMesh->VertexUV(V.x,V.y,V.z);
			}
			if (LineFeed[1] == 'n')
			{
				if (sscanf(LineFeed + 3,"%f %f %f",&V.x,&V.y,&V.z) == 3)
					LoadMesh->VertexN(V.x,V.y,-V.z);
			}
			break;
		case 'f':
			K = sscanf(LineFeed + 2,"%d/%d/%d %d/%d/%d %d/%d/%d %d/%d/%d",&Indexes[0],&Indexes[1],&Indexes[2],&Indexes[3],&Indexes[4],&Indexes[5],&Indexes[6],&Indexes[7],&Indexes[8],&Indexes[9],&Indexes[10],&Indexes[11],&Indexes[12]);
			if (K == 9)
				LoadMesh->FaceUV(Indexes[0],Indexes[3],Indexes[6],Indexes[1],Indexes[4],Indexes[7],0);
			else
			if (K == 12)
				LoadMesh->FaceUV4(Indexes[0],Indexes[3],Indexes[6],Indexes[9],Indexes[1],Indexes[4],Indexes[7],Indexes[10]);
			break;
		default:break;
		}
	}

	fclose(F);
	return 0;
}