/*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: OpenGL utils header
 *
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once
#include <unistd.h>
#include <stdbool.h>
#include <GL/glu.h>

void check_space_data_and_user_preferences(int x, int y, int z,
                                           int grid, int diagonal);

// void do_alloc_buffers(){};  //  ?!? Pourquoi ne dois-je pas déclarer cette fonction ici ?

void compute_buffers_sizes(int model_space_size_x,
                           int model_space_size_y,
                           int model_space_size_z,
                           long central_stars_nb,
                           long arrows_nb,
                           int pref_test_diagonal);

long compute_space_vertex_nb(int x, int y, int z);

long compute_space_lines_nb(int x, int y, int z, int pref_show_grid);

// bool alloc_space_vertex (long x, long y, long z,
//                          GLfloat *vertex_origin, GLfloat *colors_origin,
//                          int vertex_index, int colors_index);
bool alloc_space_vertex_and_colors (long x, long y, long z);

void draw_a_cube_at(long u, long v, long w,
                    long size_x, long size_y, long size_z, bool diagonals);

void draw_ridges_3D (long x, long y, long z,
                            long step_x, long step_y, long step_z);

bool draw_grids_3D  (long x, long y, long z,
                        long step_x, long step_y, long step_z,
                        int pref_show_grid);

void diagonal_test(long x, long y, long z,
                          long step_x, long step_y, long step_z);