#include "cube3d.h"

static void	init_img(t_img *img, void *mlx_ptr, t_win *win)
{
	img->ptr = mlx_new_image(mlx_ptr, win->size_x, win->size_y);
	img->data = mlx_get_data_addr(img->ptr, &img->bpp, &img->szl, &img->ndn);
	img->height = win->size_y;
}

static void	init_map(t_map *map)
{
	map->size_x = 24;
	map->size_y = 24;
	map->cell = CELL;
	// map
	int	tmp[24][24] = {
		{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1},
		{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
		{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},
		{1,0,0,0,0,0,1,1,1,1,1,0,0,0,0,1,0,1,0,1,0,0,0,1},
		{1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1},
		{1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,1},
		{1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1},
		{1,0,0,0,0,0,1,1,0,1,1,0,0,0,0,1,0,1,0,1,0,0,0,1},
		{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},
		{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
		{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},
		{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
		{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},
	};
	int i = 0;
	map->content = mb_alloc(sizeof(char*) * (map->size_y + 1));
	(map->content)[map->size_y] = NULL;
	while (i < 24)
	{
		(map->content)[i] = mb_alloc(sizeof(char) * (map->size_x + 1));
		(map->content)[i][map->size_x] = '\0';
		i++;
	}
	int j;
	i = 0;
	while (i < map->size_y)
	{
		j = 0;
		while (j < map->size_x)
		{
			(map->content)[i][j] = tmp[i][j] + '0';
			j++;
		}
		i++;
	}
}

static void	init_raycast(t_rcast *rcast)
{
	double	dist;

	dist = (SCREEN_FOCAL / 2) * M_PI / 180;
	dist = cos(dist) * ((SCREEN_WIDTH / 2) / sin(dist));
	rcast->screen_def = SCREEN_WIDTH;
	rcast->screen_center = SCREEN_HEIGHT / 2;
	// screen dist
	rcast->screen_dist.start.x = 0;
	rcast->screen_dist.start.y = 0;
	rcast->screen_dist.end.x = 0;
	rcast->screen_dist.end.y = -dist;
	// screen size
	rcast->screen_size.start.x = -SCREEN_WIDTH / 2;
	rcast->screen_size.start.y = -dist;
	rcast->screen_size.end.x = SCREEN_WIDTH / 2;
	rcast->screen_size.end.y = -dist;
	// first ray
	rcast->ray.start.x = 0;
	rcast->ray.start.y = 0;
	rcast->ray.end.x = -SCREEN_WIDTH / 2;
	rcast->ray.end.y = -dist;
}

static void	init_plr(t_plr *plr)
{
	// player first position
	plr->exact.x = 2 * CELL;
	plr->exact.y = 2 * CELL;
	plr->pos.x = plr->exact.x;
	plr->pos.y = plr->exact.y;
	// rotation
	plr->rot = 0;
	plr->cosi = 0;
	plr->cosj = 0;
	plr->sini = 0;
	plr->sinj = 0;
}

t_game	*init_game(void)
{
	t_game	*game;

	game = mb_alloc(sizeof(t_game));
	// map
	init_map(&(game->map));
	// plr
	init_plr(&(game->plr));
	// init connexion to server
	game->mlx_ptr = mlx_init();
	mb_add(game->mlx_ptr);

	// tmp draw map
		game->map_win.size_x = game->map.size_x * CELL;
		game->map_win.size_y = game->map.size_y * CELL + SCREEN_HEIGHT;
		game->map_win.ptr = mlx_new_window(game->mlx_ptr, game->map_win.size_x, game->map_win.size_y, "map");
		init_img(&(game->map_img), game->mlx_ptr, &(game->map_win));
	// tmp end

	game->win.size_x = SCREEN_WIDTH;
	game->win.size_y = SCREEN_HEIGHT;
	game->win.ptr = mlx_new_window(game->mlx_ptr, game->win.size_x,
												game->win.size_y, "cub3d");
	init_img(&(game->img), game->mlx_ptr, &(game->win));
	// k(ey)_hook is the array containing the values of key press events
	ft_bzero(&game->k_hook, sizeof(game->k_hook));
	// raycasting
	init_raycast(&(game->rcast));
	game->rcast.cell = game->map.cell;
	return (game);
}