#include <math.h>
#include <stdio.h>

#define KLEIN_IMPLEMENT
#include <klein/klein.h>
#include <klein/norm.h>
#include <klein/parm.h>

#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif

unsigned char dim = 10;

void cube(float *d_surface, int *coord, unsigned char *grid)
{
	int i;

	for (i = 0; i < dim; i++)
		d_surface[i] = (2 * (float)coord[i] / grid[i]) - 1;

	if (dim == 2)
		d_surface[2] = 0;
}

int main(void)
{
	unsigned char i;
	char file_name[0xff];
	struct klein klein;
	struct parm parametrization = {
		.m = dim,
		.n = dim,
		.f = cube,
	};

	parametrization.grid = malloc(dim);
	
	for (i = 0; i < dim; ++i)
		parametrization.grid[i] = 1 + i;

	snprintf(file_name, 0xff, "cube-%03d.klein", dim);
	printf("writing %s\n", file_name);

	klein_parametrize(&klein, parametrization);
	klein_normalize(&klein);
	klein_export_file(klein, file_name);

	return 0;
}