so_long/parsemap.c at master · sergiofdeznunez/so_long · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   parsemap.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: snunez <snunez@student.42.fr>              +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/03/03 13:38:11 by snunez            #+#    #+#             */
/*   Updated: 2022/04/10 17:40:30 by snunez           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "so_long.h"

int	check_ones(char *line)
{
	int	i;

	i = 0;
	if (!line)
		return (-1);
	while (line[i])
	{
		if (line[i] != '1')
			return (-1);
		i++;
	}
	return (1);
}

void	check_map(char char_map, t_map *map, int j)
{
	if (!char_map || map == NULL || (char_map != '0' && char_map != '1' && \
	char_map != 'C' && char_map != 'P' && char_map != 'E'))
		return (ft_exit(&map));
	else if (char_map == 'C')
		map->items++;
	else if (char_map == 'P')
	{
		map->pj++;
		map->pj_y = map->height - 1;
		map->pj_x = j;
	}
	else if (char_map == 'E')
		map->exit++;
}

t_map	*save_map(int fd, t_map *map)
{
	int	i;
	int	result;

	i = 0;
	map->map = (char **)malloc((map->height + 1) * sizeof(char *));
	map->map[map->height] = 0;
	result = get_next_line(fd, &map->map[i]);
	i++;
	while (result == 1)
	{
		result = get_next_line(fd, &map->map[i]);
		i++;
	}
	close(fd);
	if (result == 0)
		return (map);
	else
		return (NULL);
}

t_map	*final_check(char *line, int fd, int result, t_map *map)
{
	int	check;

	if ((size_t)map->width != ft_strlen(line))
	{
		free(line);
		printf("Error: not a valid map\n");
		exit(1);
	}
	check = check_ones(line);
	free(line);
	close(fd);
	if (result == 0 && check == 1 && map->pj == 1 && map->items >= 1 && \
	map->exit == 1)
		return (map);
	else
	{
		printf("Final check error: not a valid map\n");
		exit(1);
	}
}

t_map	*read_map(int fd, t_map *map)
{
	int		j;
	int		result;
	char	*line;
	int		check;

	line = NULL;
	result = get_next_line(fd, &line);
	map->width = ft_strlen(line);
	check = check_ones(line);
	while (result == 1 && check == 1)
	{
		j = 0;
		map->height++;
		if (line[0] != '1' || line[ft_strlen(line) - 1] != '1' || \
		ft_strlen(line) != (size_t)map->width)
			ft_exit(&map);
		while (line[++j])
			check_map(line[j], map, j);
		free(line);
		result = get_next_line(fd, &line);
	}
	if (result == 0)
		map->height++;
	return (final_check(line, fd, result, map));
}