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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* parse.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <charles.cabergs@gmail.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/07/19 15:23:43 by cacharle #+# #+# */
/* Updated: 2019/07/24 12:19:39 by samzur ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include "include.h"
/*
** open the file, pass it to parse_fildes
*/
int parse_file(char *filename, t_parsed_terrain *pterrain)
{
int fildes;
if ((fildes = open(filename, O_RDONLY)) < 0)
return (-1);
if (parse_fildes(fildes, pterrain) < 0)
{
close(fildes);
return (-1);
}
if (close(fildes) < 0)
return (-1);
return (0);
}
/*
** read file designated by fildes in `file`, pass it to parse,
** free the file string
** return -1 in case of error, 0 otherwise
*/
int parse_fildes(int fildes, t_parsed_terrain *pterrain)
{
char *file;
if ((file = read_file(fildes)) == NULL)
return (-1);
if (parse(file, pterrain) < 0)
{
free(file);
return (-1);
}
free(file);
return (0);
}
/*
** parse the file string, initialise pterrain attributes
** return -1 in case of error, 0 otherwise
*/
int parse(char *file, t_parsed_terrain *pterrain)
{
int y;
int i;
if ((pterrain->terrain = (t_terrain*)malloc(sizeof(t_terrain))) == NULL)
return (-1);
if ((i = parse_header(file, pterrain)) < 0)
{
free(pterrain->terrain);
return (-1);
}
if (set_dimensions(&file[i], pterrain) < 0 || (pterrain->terrain->matrix =
(int**)malloc(sizeof(int*) * pterrain->terrain->rows)) == NULL)
{
free(pterrain->terrain);
return (-1);
}
y = -1;
while (++y < pterrain->terrain->rows)
if ((pterrain->terrain->matrix[y] = set_row(file, pterrain, y)) == NULL)
{
destroy_terrain(pterrain->terrain);
free(pterrain);
return (-1);
}
return (0);
}
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