#include "include/primitives.h"

enum honey_mesh_result honey_mesh_new_cube(honey_mesh* mesh,
                                           float width,
                                           float height,
                                           float depth) {
  float x0 = 0;
  float y0 = 0;
  float z0 = 0;

  float x1 = width;
  float y1 = height;
  float z1 = depth;

  float vertices[] = {
    x0, y0, z0,
    x1, y0, z0,
    x0, y1, z0,
    x1, y1, z0,
    x0, y0, z1,
    x1, y0, z1,
    x0, y1, z1,
    x1, y1, z1 };

  unsigned int indices[] = { 0, 1, 2,
                             1, 2, 3,
                             4, 5, 6,
                             5, 6, 7,
                             0, 2, 4,
                             2, 4, 6,
                             1, 3, 5,
                             3, 5, 7,
                             2, 3, 6,
                             3, 6, 7,
                             0, 1, 4,
                             1, 4, 5 };

  unsigned int attrib_sizes[] = { 3 };

  enum honey_mesh_result result = honey_mesh_new(mesh,
                                                 vertices,
                                                 8, 1, attrib_sizes,
                                                 indices, 36);

  return result;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

enum honey_mesh_result honey_mesh_new_textured_cube(honey_mesh* mesh,
                                                    float width,
                                                    float height,
                                                    float depth) {
  float x0 = 0;
  float y0 = 0;
  float z0 = 0;

  float x1 = width;
  float y1 = height;
  float z1 = depth;

  float vertices[] = {
    /* position       tex coord */
    /* back face */
    x0, y0, z0,       0, 0,
    x1, y0, z0,       1, 0,
    x0, y1, z0,       0, 1,
    x1, y1, z0,       1, 1,

    /* front face */
    x0, y0, z1,       0, 0,
    x1, y0, z1,       1, 0,
    x0, y1, z1,       0, 1,
    x1, y1, z1,       1, 1,

    /* left face */
    x0, y0, z0,       0, 0,
    x0, y1, z0,       1, 0,
    x0, y0, z1,       0, 1,
    x0, y1, z1,       1, 1,

    /* right face */
    x1, y0, z0,       0, 0,
    x1, y1, z0,       1, 0,
    x1, y0, z1,       0, 1,
    x1, y1, z1,       1, 1,

    /* bottom face */
    x0, y0, z0,       0, 0,
    x1, y0, z0,       1, 0,
    x0, y0, z1,       0, 1,
    x1, y0, z1,       1, 1,
    
    /* top face */
    x0, y1, z0,       0, 0,
    x1, y1, z0,       1, 0,
    x0, y1, z1,       0, 1,
    x1, y1, z1,       1, 1 };

  unsigned int indices[] = {
    0, 1, 2,
    1, 2, 3,
    4, 5, 6,
    5, 6, 7,
    8, 9, 10,
    9, 10, 11,
    12, 13, 14,
    13, 14, 15,
    16, 17, 18,
    17, 18, 19,
    20, 21, 22,
    21, 22, 23 };

  unsigned int attrib_sizes[] = { 3, 2 };

  enum honey_mesh_result result;
  result = honey_mesh_new(mesh, vertices, 24,
                          2, attrib_sizes,
                          indices, 36);
  return result;
}