/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   parse_map.c                                        :+:    :+:            */
/*                                                     +:+                    */
/*   By: whaffman <whaffman@student.codam.nl>         +#+                     */
/*                                                   +#+                      */
/*   Created: 2025/04/22 13:12:04 by whaffman      #+#    #+#                 */
/*   Updated: 2025/05/04 15:07:44 by whaffman      ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#include "cub3d.h"
#include <math.h>

t_vec2 parse_dir(int x, int y)
{
	t_vec2	dir;

	dir.x = (float)x;
	dir.y = (float)y;
	return (dir);
}

int parse_player(t_game *game, int y, int x, char c)
{
	t_player	*player;

	player = game->player;
	player->pos.x = ((float)x + 0.5f);
	player->pos.y = ((float)y + 0.5f);

	if (c == 'N')
		player->dir = parse_dir(0, -1);
	else if (c == 'E')
		player->dir = parse_dir(1, 0);
	else if (c == 'S')
		player->dir = parse_dir(0, 1);
	else if (c == 'W')
		player->dir = parse_dir(-1, 0);

	player->camera = rot(player->dir, 0.5f * M_PI);
	return (SUCCESS);
}

int	parse_map_line(char **lines, t_game *game, int y)
{
	int	x;
	t_map	*map;

	map = game->map;
	map->grid[y] = malloc(sizeof(t_tile) * (map->width + 1));
	if (!map->grid[y])
		return (FAILURE);
	x = 0;
	while (x < map->width)
	{
		if (x >= ft_strlen(lines[y]))
			map->grid[y][x] = TILE_VOID;
		else
			map->grid[y][x] = parse_tile(lines[y][x]);
		if (map->grid[y][x] == TILE_PLAYER)
			parse_player(game, y, x, lines[y][x]);
		else if (map->grid[y][x] == -2)
			return (FAILURE);
		if (map->grid[y][x] == -2)
			return (FAILURE);
		x++;
	}
	return (SUCCESS);
}

int	parse_map(char **lines, t_game *game)
{
	int	y;
	t_map	*map;

	y = 0;
	while (lines[y])
		y++;
	map = game->map;
	map->height = y;
	map->width = map_width(lines);
	map->grid = malloc(sizeof(t_tile *) * (map->height + 1));
	if (!map->grid)
		return (FAILURE);
	y = 0;
	while (y < map->height)
	{
		if (!parse_map_line(lines, game, y))
			return (map_free(map), FAILURE);
		y++;
	}
	map->grid[y] = NULL;
	return (SUCCESS);
}