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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* map_verify.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: kdx <kdx @student.42angouleme.fr +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/10/10 08:14:30 by kdx #+# #+# */
/* Updated: 2022/10/16 00:14:35 by kdx ### ########.fr */
/* */
/* ************************************************************************** */
#include "map.h"
static t_err only_chars(const unsigned char *data)
{
int accepted[256];
size_t i;
i = 0;
while (i < 256)
accepted[i++] = 0;
accepted[TILE_NONE] = 1;
accepted[TILE_WALL] = 1;
accepted[TILE_COLLECTIBLE] = 1;
accepted[TILE_EXIT] = 1;
accepted[TILE_PLAYER] = 1;
accepted['\n'] = 1;
i = 0;
while (data[i] != '\0')
if (!accepted[data[i++]])
return (1);
return (0);
}
static t_err find_uniques(const unsigned char *data)
{
int uniques[256];
size_t i;
size_t to_be_found;
i = 0;
while (i < 256)
uniques[i++] = 0;
uniques['P'] = 1;
uniques['E'] = 1;
uniques['C'] = 5;
to_be_found = 3;
i = 0;
while (data[i] != '\0')
{
if (uniques[data[i]] && uniques[data[i]] != 7)
{
if (uniques[data[i]] == 3)
return (ERR_DUPLICATE);
if ((uniques[data[i]] & 2) == 0)
to_be_found--;
uniques[data[i]] |= 2;
}
i++;
}
return (ERR_MISSING + (to_be_found == 0) * (ERR_NONE - ERR_MISSING));
}
static t_err sensible_dimensions(t_map *map, const unsigned char *data)
{
size_t prev_newline;
if (ft_strchr((const char *)data, '\n') == NULL)
return (1);
prev_newline = 0;
map->width = 0;
map->height = 0;
while (*data != '\0')
{
if (*data++ == '\n')
{
if (map->width == 0)
map->width = prev_newline;
if (prev_newline == 0 || map->width != prev_newline)
return (1);
prev_newline = 0;
map->height++;
}
else
prev_newline++;
}
if (prev_newline != 0 || map->width == 0 || map->height == 0)
return (1);
return (0);
}
static t_err valid_borders(t_map *map)
{
size_t x;
size_t y;
x = 0;
while (x < map->width)
{
if (map->data[x] != TILE_WALL
|| map_get(map, x * TSIZE, (map->height - 1) * TSIZE) != TILE_WALL)
return (ERR_OPEN_BORDER);
x += 1;
}
y = 0;
while (y < map->height)
{
if (map_get(map, 0, y * TSIZE) != TILE_WALL
|| map_get(map, (map->width - 1) * TSIZE, y * TSIZE) != TILE_WALL)
return (ERR_OPEN_BORDER);
y += 1;
}
return (ERR_NONE);
}
t_err map_verify(t_map *map, const unsigned char *data)
{
if (only_chars(data))
return (ERR_INVALID_CHAR);
if (find_uniques(data))
return (find_uniques(data));
if (sensible_dimensions(map, data))
return (ERR_WRONG_DIMENSION);
if (valid_borders(map))
return (ERR_OPEN_BORDER);
if (!map_pathfind(map))
return (ERR_NO_PATH);
return (ERR_NONE);
}
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