cub3d/src/map/populate_map.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   populate_map.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kcolin <kcolin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/07/17 14:44:02 by kcolin            #+#    #+#             */
/*   Updated: 2025/07/23 13:34:33 by kcolin           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "../../libft/includes/libft.h"
#include "../utils/frees.h"

int	copy_old_map(t_mapdata *map, char **newmap, char **newmapflood, int length)
{
	int	i;

	i = 0;
	if (!map->map)
		return (0);
	while (i < length)
	{
		newmap[i] = ft_strdup(map->map[i]);
		newmapflood[i] = ft_strdup(map->mapflood[i]);
		i++;
	}
	return (i);
}

void	add_map_line(const char *line, t_mapdata *map)
{
	static int	length = 0;
	char		**newmap;
	char		**newmapflood;
	int			i;

	newmap = ft_calloc(sizeof(char *), (length + 2));
	if (!newmap)
		return ;
	newmapflood = ft_calloc(sizeof(char *), (length + 2));
	if (!newmapflood)
		return ;
	i = copy_old_map(map, newmap, newmapflood, length);
	newmap[i] = ft_strdup(line);
	newmapflood[i] = ft_strdup(line);
	free_tab_length(map->map, length);
	free_tab_length(map->mapflood, length);
	map->mapheight = ++length;
	map->map = newmap;
	map->mapflood = newmapflood;
}

/*
** return values:
** true: everything is fine
** false: error occured, caller should look at map->error
*/
bool	populate_maps(t_mapdata *map, int fd)
{
	char	*line;
	bool	end_reached;
	bool	retvalue;

	line = get_next_line(fd);
	end_reached = false;
	retvalue = true;
	while (line)
	{
		if (line[0] != '\n' && end_reached)
		{
			ft_strlcpy(map->error, "Trailing chars after map", ERRLEN);
			retvalue = false;
		}
		if (line[0] != '\n')
			add_map_line(line, map);
		if (line[0] == '\n')
			end_reached = true;
		free(line);
		line = get_next_line(fd);
	}
	free(line);
	return (retvalue);
}