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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* parse.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/11/15 09:29:21 by cacharle #+# #+# */
/* Updated: 2019/11/15 09:32:54 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "cub3d.h"
t_parsing *parse(char *filename)
{
int i;
char **lines;
t_parsing *parsing;
if ((lines = get_file_lines(filename)) == NULL)
return (NULL);
if ((parsing = (t_parsing*)malloc(sizeof(t_parsing))) == NULL)
return (NULL);
parsing->map = NULL;
i = -1;
while (lines[++i] != NULL)
{
if (*lines[i] == '1')
break ;
if (!parse_line(parsing, lines[i]))
return (NULL);
}
if ((parsing = parse_map(parsing, lines + i)) == NULL)
return (NULL);
free(lines);
return (parsing);
}
char **get_file_lines(char *filename)
{
int fd;
int ret;
char *line;
char *file;
fd = open(filename, O_RDONLY);
if ((file = ft_strdup("")) == NULL)
return (NULL);
while ((ret = get_next_line(fd, &line)) == 1)
if ((file = ft_strjoin_free(file, ft_strjoin_free(line, ft_strdup("\n"), 2), 2)) == NULL)
return (NULL);
if (ret == -1)
return (NULL);
free(line);
close(fd);
return (ft_split(file, '\n'));
}
static t_option_parser option_parsers[] =
{
{"R", parse_resolution},
{"NO", parse_north_texture},
{"SO", parse_south_texture},
{"WE", parse_west_texture},
{"EA", parse_east_texture},
{"S", parse_sprite_texture},
{"F", parse_floor_color},
{"C", parse_ceilling_color}
};
#define OPTIONS_PARSERS_SIZE (sizeof(option_parsers) / sizeof(t_option_parser))
t_bool parse_line(t_parsing *parsing, char *line)
{
int i;
if (!*line)
return (TRUE);
i = -1;
while (++i < (int)OPTIONS_PARSERS_SIZE)
if (ft_strncmp(option_parsers[i].id, line, ft_strlen(option_parsers[i].id)) == 0)
return (option_parsers[i].func(parsing, line + ft_strlen(option_parsers[i].id)));
return (FALSE);
}
t_parsing *parse_map(t_parsing *parsing, char **lines)
{
int i;
i = -1;
while (lines[++i] != NULL)
if (*lines[i] != '1')
return (NULL);
parsing->map_height = i;
if ((parsing->map = (t_map)malloc(sizeof(t_cell*) * i)) == NULL)
return (NULL);
parsing->map_width = ft_strcount(*lines, '1');
i = -1;
while (lines[++i] != NULL)
if ((parsing->map[i] = create_map_row(lines[i])) == NULL)
return (NULL);
return (parsing);
}
t_cell *create_map_row(char *line)
{
int i;
t_cell *row;
if ((row = (t_cell*)malloc(sizeof(t_cell) * ft_strlen(line))) == NULL)
return (NULL);
i = 0;
while (*line)
{
if (*line == '0')
row[i++] = CELL_EMPTY;
else if (*line == '1')
row[i++] = CELL_WALL;
else if (*line == '2')
row[i++] = CELL_ITEM;
else if (*line == 'N')
row[i++] = CELL_LOOK_NORTH;
else if (*line == 'S')
row[i++] = CELL_LOOK_SOUTH;
else if (*line == 'W')
row[i++] = CELL_LOOK_WEST;
else if (*line == 'E')
row[i++] = CELL_LOOK_EAST;
else
{
free(row);
return (NULL);
}
line++;
while (*line == ' ')
line++;
}
return (row);
}
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