#include <stdio.h>
#include <gl/gl.h>

long ejes[4][3]=
{
	{ 0, 0, 0},
	{ 2, 0, 0},
	{ 0, 2, 0},
	{ 0, 0, 2}
};

int	n_vert;
float vertex[1024][3];
unsigned long colors[1024];

int	n_inst;
int inst[1024][2];
void drawEjes(void);

void init_geom(char* name)
{
	FILE *f;
	int	i,j;

	if(NULL==(f=fopen(name,"r")))
	{
		fprintf(stderr,"Error opening $s\n",name);
		exit(-1);
	}
	
	fscanf(f,"%d",&n_vert);

	for(j=0;j<n_vert;j++)
	{
		fscanf(f,"%d",&i);
		fscanf(f,"%f %f %f %x",&vertex[i][0],&vertex[i][1],&vertex[i][2],
				&colors[i]);
	}

	fscanf(f,"%d",&n_inst);

	for(i=0;i<n_inst;i++)
	{
		fscanf(f,"%d %d",&inst[i][0],&inst[i][1]);
	}

	fclose(f);
}

void draw_geom(void)
{
		int i;

/*  polymode(PYM_LINE);*/

/*		drawEjes();*/

		bgntmesh();
				for(i=0;i<n_inst;i++)
				{
						cpack(colors[inst[i][0]]);
						v3f(vertex[inst[i][0]]);
						if(inst[i][1]) swaptmesh();
				}
		endtmesh();
}

void drawEjes(void)
{
		color(RED);
		bgnline();
		v3i(ejes[0]);
		v3i(ejes[1]);
		endline();

		color(GREEN);
		bgnline();
		v3i(ejes[0]);
		v3i(ejes[2]);
		endline();

		color(BLUE);
		bgnline();
		v3i(ejes[0]);
		v3i(ejes[3]);
		endline();
}