/*
	A demo of opening files for writing rib
		invoking another exe
	M. Kesson
	4.8.03
*/

#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>

float randBetween(float min, float max);

int main(void)
{
FILE 	*fp;
float 	xyz[3];
int		n;

/* one character at a time */
fp = fopen("disk_archive.rib", "w");

if(fp == NULL)
	return 1;
  
/* generate random points */
for(n = 0; n < 1000; n++)
    {
    xyz[0] = randBetween(-1, 1); /* x */
    xyz[1] = 0;                  /* y */
    xyz[2] = randBetween(-1, 1); /* z */
    fprintf(fp, "TransformBegin\n");
    fprintf(fp, "Translate %f %f %f\n", xyz[0], xyz[1], xyz[2]);
    
    xyz[0] = randBetween(0, 1); /* r */
    xyz[1] = randBetween(0, 1); /* g */
    xyz[2] = randBetween(0, 1); /* b */
    fprintf(fp, "Color %f %f %f\n", xyz[0], xyz[1], xyz[2]);
   
    
	fprintf(fp, "Sphere 0.02 -0.02 0.02 360\n");
    fprintf(fp, "TransformEnd\n");
    }
fclose(fp);
return 0;
}

float randBetween(float min, float max)
{
return ((float)rand()/RAND_MAX) * (max - min) + min;
}