#include "object.h"
#include <GL/glext.h>
#include <glh/glh_extensions.h>


Object::Object()
{
	
}

Object::~Object()
{

}

void Object::Load(ifstream *file)
{	
	fprintf(stderr, "Loading Object: \n");
	
	char* tempchar=new char[500];
	file->getline(tempchar,500,'\n');
	sscanf(tempchar,"translate: %lf %lf %lf",&Translate.x,&Translate.y,&Translate.z);
	
	file->getline(tempchar,500,'\n');
	sscanf(tempchar,"rotate: %lf %lf %lf",&Rotate.x,&Rotate.y,&Rotate.z);
	
	file->getline(tempchar,500,'\n');
	sscanf(tempchar,"scale: %lf %lf %lf",&Scale.x,&Scale.y,&Scale.z);

	file->getline(tempchar,500,'\n');
	sscanf(tempchar,"Vertexcount %ui",&vertexcount);
	
	Vertices=new float[vertexcount*3];
	fprintf(stderr, "vertexcount: %i ",vertexcount);
	for(unsigned int i=0;i<vertexcount;i++)
	{
		//unsigned int v;
		file->getline(tempchar,500,'\n');
		//sscanf(tempchar,"vertex %ui %lf %lf %lf",&v);
		file->getline(tempchar,500,'\n');
		sscanf(tempchar,"%f %f %f",&Vertices[3*i],&Vertices[3*i+1],&Vertices[3*i+2]);
		
	}

	file->getline(tempchar,500,'\n');
	sscanf(tempchar,"Facecount %ui",&facecount);
	
	fprintf(stderr, "Facecount: %i\n",facecount);
	
	Normals=new float[9*facecount];
	Indexes=new unsigned int[3*facecount];
	TexCoords=new float[6*facecount];
	AllVertices=new float[9*facecount];

	unsigned int f;

	for(int i=0;i<facecount;i++)
	{
		file->getline(tempchar,500,':');
		//eatwhitespace??
		bool more=true;
		while (more)
		{
			file->getline(tempchar,500,' ');
			if(tempchar[0]!=0)
				more=false;
		}
		sscanf(tempchar,"%ui",&Indexes[3*i]);
		more=true;
		while (more)
		{
			file->getline(tempchar,500,' ');
			if(tempchar[0]!=0)
				more=false;
		}
		sscanf(tempchar,"%ui",&Indexes[3*i+1]);
		more=true;
		while (more)
		{
			file->getline(tempchar,500,' ');
			if(tempchar[0]!=0)
				more=false;
		}
		sscanf(tempchar,"%ui",&Indexes[3*i+2]);
		
		file->getline(tempchar,500,'\n');
		file->getline(tempchar,500,'\n');//uvs
		file->getline(tempchar,500,'\n');//normals
		
		file->getline(tempchar,500,'\n');
		sscanf(tempchar,"%f %f",&TexCoords[6*i],&TexCoords[6*i+1]);
		file->getline(tempchar,500,'\n');
		sscanf(tempchar,"%f %f",&TexCoords[6*i+2],&TexCoords[6*i+3]);
		file->getline(tempchar,500,'\n');
		sscanf(tempchar,"%f %f",&TexCoords[6*i+4],&TexCoords[6*i+5]);
			
		file->getline(tempchar,500,'\n');
		sscanf(tempchar,"%f %f %f",&Normals[9*i],&Normals[9*i+1],&Normals[9*i+2]);
		file->getline(tempchar,500,'\n');
		sscanf(tempchar,"%f %f %f",&Normals[9*i+3],&Normals[9*i+4],&Normals[9*i+5]);
		file->getline(tempchar,500,'\n');
		sscanf(tempchar,"%f %f %f",&Normals[9*i+6],&Normals[9*i+7],&Normals[9*i+8]);
	}
	fprintf(stderr, "Building vertex buffer...\n");
	
	for(int i=0;i<facecount;i++)
	{
		unsigned int index1=Indexes[i*3];
		unsigned int index2=Indexes[i*3+1];
		unsigned int index3=Indexes[i*3+2];
		
		AllVertices[i*9]=Vertices[3*index1];
		AllVertices[i*9+1]=Vertices[3*index1+1];
		AllVertices[i*9+2]=Vertices[3*index1+2];
		AllVertices[i*9+3]=Vertices[3*index2];
		AllVertices[i*9+4]=Vertices[3*index2+1];
		AllVertices[i*9+5]=Vertices[3*index2+2];
		AllVertices[i*9+6]=Vertices[3*index3];
		AllVertices[i*9+7]=Vertices[3*index3+1];
		AllVertices[i*9+8]=Vertices[3*index3+2];
	}
	delete []Vertices;
/*
	glGenBuffersARB( 1, &VertexbufferID );					
	glBindBufferARB( GL_ARRAY_BUFFER_ARB, VertexbufferID );			
	glBufferDataARB( GL_ARRAY_BUFFER_ARB, vertexcount*sizeof(float), Vertices, GL_STATIC_DRAW_ARB );

	glGenBuffersARB( 1, &IndexBufferID );					
	glBindBufferARB( GL_ARRAY_BUFFER_ARB, IndexBufferID );	
	glBufferDataARB( GL_ARRAY_BUFFER_ARB, facecount*3*sizeof(float), Indexes, GL_STATIC_DRAW_ARB );

	glGenBuffersARB( 1, &NormalBufferID );					
	glBindBufferARB( GL_ARRAY_BUFFER_ARB, NormalBufferID );	
	glBufferDataARB( GL_ARRAY_BUFFER_ARB, facecount*9*sizeof(float), Normals, GL_STATIC_DRAW_ARB );

	glGenBuffersARB( 1, &TexCoordBufferID );					
	glBindBufferARB( GL_ARRAY_BUFFER_ARB, TexCoordBufferID );	
	glBufferDataARB( GL_ARRAY_BUFFER_ARB, facecount*6*sizeof(float), TexCoords, GL_STATIC_DRAW_ARB );
*/
}

void Object::Rendermodel()
{
	//glShadeModel(GL_FLAT);
	glEnableClientState(GL_VERTEX_ARRAY);
	glEnableClientState(GL_NORMAL_ARRAY);
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
			
	glVertexPointer (3, GL_FLOAT, 0, AllVertices);
	glNormalPointer(GL_FLOAT,0,Normals);
	glTexCoordPointer(2, GL_FLOAT, 0, TexCoords);
	
	glDrawArrays(GL_TRIANGLES,0, 3*facecount);

	glDisableClientState( GL_VERTEX_ARRAY );	
	glDisableClientState( GL_NORMAL_ARRAY );
	glDisableClientState(GL_TEXTURE_COORD_ARRAY);

	//glutSolidTeapot(1.5);
}