1  /* ************************************************************************** */
 2  /*                                                                            */
 3  /*                                                        :::      ::::::::   */
 4  /*   parsing_textures.c                                 :+:      :+:    :+:   */
 5  /*                                                    +:+ +:+         +:+     */
 6  /*   By: ll-hotel <ll-hotel@student.42lyon.fr>      +#+  +:+       +#+        */
 7  /*                                                +#+#+#+#+#+   +#+           */
 8  /*   Created: 2024/07/26 13:35:34 by ll-hotel          #+#    #+#             */
 9  /*   Updated: 2024/10/20 17:25:05 by ll-hotel         ###   ########.fr       */
10  /*                                                                            */
11  /* ************************************************************************** */
12  
13  #include "cub3D.h"
14  #include "ft_basics.h"
15  #include "ft_dprintf.h"
16  #include "mlx.h"
17  #include "parsing.h"
18  #include <fcntl.h>
19  #include <stdlib.h>
20  #include <unistd.h>
21  
22  static char	*get_texture_filename(t_line const *line);
23  static int	store_texture(t_cube *cube, char const *key, char *filename);
24  
25  int	parsing_textures(t_cube *cube, t_line *lines)
26  {
27  	char const *const	keys[] = {"NO", "SO", "EA", "WE", NULL};
28  	char const			*key;
29  	t_line				*line;
30  	char				*filename;
31  	int					key_i;
32  
33  	key_i = -1;
34  	while (keys[++key_i])
35  	{
36  		key = keys[key_i];
37  		line = find_line_by_key(lines, key);
38  		if (line == NULL)
39  			return (ft_dprintf(2, "Error\nMissing key '%s'\n", key), 0);
40  		else if (find_line_by_key(line + 1, key) != NULL)
41  			return (ft_dprintf(2, "Error\nDuplicate key '%s'\n", key), 0);
42  		filename = get_texture_filename(line);
43  		if (!filename)
44  			return (0);
45  		ft_strtrim_inplace(filename);
46  		if (!store_texture(cube, key, filename))
47  			return (0);
48  	}
49  	return (1);
50  }
51  
52  static char	*get_texture_filename(t_line const *line)
53  {
54  	if (line->value == NULL)
55  		ft_dprintf(2, "Error\nMissing value for key '%s'\n", line->key);
56  	else if (ft_strchr(line->value, ' ') != NULL)
57  		ft_dprintf(2, "Error\nBad value '%s' for key '%s'\n", line->value, \
58  				line->key);
59  	else if (ft_str_endswith(line->value, ".xpm") == 1)
60  		return (line->value);
61  	else
62  		ft_dprintf(2, "Error\nFile %s is not a xpm file\n", line->value);
63  	return (NULL);
64  }
65  
66  static int	store_texture(t_cube *cube, char const *key, char *filename)
67  {
68  	t_img	*texture;
69  
70  	if (ft_strcmp(key, "NO") == 0)
71  		texture = &cube->no_texture;
72  	else if (ft_strcmp(key, "SO") == 0)
73  		texture = &cube->so_texture;
74  	else if (ft_strcmp(key, "EA") == 0)
75  		texture = &cube->ea_texture;
76  	else if (ft_strcmp(key, "WE") == 0)
77  		texture = &cube->we_texture;
78  	else
79  		return (0);
80  	texture->ptr = mlx_xpm_file_to_image(cube->mlx.ptr, filename, \
81  			&texture->width, &texture->height);
82  	if (texture->ptr == NULL)
83  	{
84  		ft_dprintf(2, "Error\nMlx failed to parse file '%s'\n", filename);
85  		return (0);
86  	}
87  	texture->pixels = mlx_get_data_addr(texture->ptr, &texture->bpp, \
88  			&texture->size_line, &texture->endian);
89  	return (1);
90  }