#include <stdio.h>
#include "libps2.h"
#include "light.h"

FMATRIX normal_light;
FMATRIX light_color;

void light_init(LIGHT *l)
{
  /**Three lights in all.
     The color of the light of "light0" is color0.
     The color of the light of "light1" is color1.
     The color of the light of "light2" is color2.
  **/

  l->light0[0] = 0.0;
  l->light0[1] = 0.0;
  l->light0[2] = 1.0;
  l->light0[3] = 1.0;

  l->light1[0] = 0.0;
  l->light1[1] = -1.0;
  l->light1[2] = 0.0;
  l->light1[3] = 1.0;

  l->light2[0] = 1.0;
  l->light2[1] = 1.0;
  l->light2[2] = 1.0;
  l->light2[3] = 1.0;

  l->color0[0] = 0.4;
  l->color0[1] = 0.4;
  l->color0[2] = 0.4;
  l->color0[3] = 1.0;

  l->color1[0] = 0.4;
  l->color1[1] = 0.4;
  l->color1[2] = 0.4;
  l->color1[3] = 1.0;

  l->color2[0] = 0.4;
  l->color2[1] = 0.4;
  l->color2[2] = 0.4;
  l->color2[3] = 1.0;

  /*Reflection degree of light*/ 
  l->ambient[0] = 0.4;
  l->ambient[1] = 0.4;
  l->ambient[2] = 0.4;
  l->ambient[3] = 1.0;

}

void light_set(LIGHT *l)
{
  ps2_vu0_normal_light_matrix(normal_light, l->light0, l->light1, l->light2);
  ps2_vu0_light_color_matrix(light_color, l->color0, l->color1, l->color2, l->ambient);
}