so_long/validate_map.c at main · SimoneFelici/so_long · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   validate_map.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: sfelici <marvin@42.fr>                     +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/02/21 15:23:22 by sfelici           #+#    #+#             */
/*   Updated: 2025/02/21 15:24:15 by sfelici          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "so_long.h"

static int	check_rectangular(char **map, t_map_info *info)
{
	int	i;

	info->cols = ft_strlen(map[0]);
	info->rows = 0;
	i = 0;
	while (map[i])
	{
		if ((int)ft_strlen(map[i]) != info->cols)
			return (1);
		i++;
	}
	info->rows = i;
	return (0);
}

static int	check_walls(char **map, t_map_info *info)
{
	int	i;

	i = 0;
	while (i < info->cols)
	{
		if (map[0][i] != '1' || map[info->rows - 1][i] != '1')
			return (1);
		i++;
	}
	i = 0;
	while (i < info->rows)
	{
		if (map[i][0] != '1' || map[i][info->cols - 1] != '1')
			return (1);
		i++;
	}
	return (0);
}

static int	validate_tile(char tile, int i, int j, t_map_info *info)
{
	if (tile == 'P')
	{
		info->player_count++;
		if (info->player_count == 1)
		{
			info->player_x = j;
			info->player_y = i;
		}
	}
	else if (tile == 'E')
		info->exit_count++;
	else if (tile == 'C')
		info->collectible_count++;
	else if (tile == 'V')
		return (0);
	else if (tile != '0' && tile != '1')
		return (1);
	return (0);
}

static int	check_chars_and_count(char **map, t_map_info *info)
{
	int	i;
	int	j;

	info->player_count = 0;
	info->exit_count = 0;
	info->collectible_count = 0;
	i = 0;
	while (i < info->rows)
	{
		j = 0;
		while (j < info->cols)
		{
			if (validate_tile(map[i][j], i, j, info))
				return (1);
			j++;
		}
		i++;
	}
	if (info->player_count != 1
		|| info->exit_count != 1
		|| info->collectible_count < 1)
	{
		return (1);
	}
	return (0);
}

int	check_map_errors(char **map, t_map_info *info)
{
	if (check_rectangular(map, info))
	{
		ft_printf("Error\nMap not rectangular\n");
		return (1);
	}
	if (check_walls(map, info))
	{
		ft_printf("Error\nMap not surrounded by walls\n");
		return (1);
	}
	if (check_chars_and_count(map, info))
	{
		ft_printf("Error\nInvalid chars or wrong numbers\n");
		return (1);
	}
	if (check_path(map, info))
	{
		ft_printf("Error\nUnable to find a valid path\n");
		return (1);
	}
	return (0);
}