/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   algo.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mcolonna <mcolonna@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/01 16:24:58 by grobledo          #+#    #+#             */
/*   Updated: 2024/10/15 13:13:13 by mcolonna         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "algo.h"

void *g_mlx = NULL;
void *g_win = NULL;
t_ray g_ray;

int	worldMap[mapWidth][mapHeight] =
{
  {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1},
  {1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,1,1,0,0,1,1,1,1,1,0,0,0,0,1,0,1,0,1,0,0,0,1},
  {1,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,1,1,0,0,1,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,1},
  {1,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,1,1,0,0,1,1,0,1,1,0,0,0,0,1,0,1,0,1,0,0,0,1},
  {1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
  {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}
};

static int initalgo()
{
	// TODO from map
	g_ray.posX = 14;
	g_ray.posY = 6.5;
	g_ray.rot = 0;
	return (0);
}

void draw_screen(void) {
	int bpp;
	int size_line;
	int endian;
	
	void *img_ptr = mlx_new_image(g_mlx, SCREEN_WIDTH, SCREEN_HEIGHT);
	u_int32_t *img_data = (u_int32_t *)mlx_get_data_addr(img_ptr, &bpp, &size_line, &endian);
	if (bpp != 32 || endian != 0)
	{
		// TODO manage error better
		printf("image format error (got bpp == %i, endian == %i)\n", bpp, endian);
		exit(1);
	}
	render(img_data);
	mlx_put_image_to_window(g_mlx, g_win, img_ptr, 0, 0);
}

int main(void)
{
	// Initialisation
	g_mlx = mlx_init();  
	g_win = mlx_new_window(g_mlx, SCREEN_WIDTH, SCREEN_HEIGHT, "cub3d");

	initalgo();

	// hook keypress
	mlx_hook(g_win, 2, 1L<<0, keypress, NULL);

	// render the initial frame
	draw_screen();

	// start the mlx loop
	mlx_loop(g_mlx);

	return (0);
}




// https://github.com/iciamyplant/Cub3d-Linux

// https://lodev.org/cgtutor/raycasting.html

// https://www.youtube.com/watch?v=js7HW65MmNw&list=PL0H9-oZl_QOHM34HvD3DiGmwmj5X7GvTW