| 1 | |
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| 2 | /* |
1 | /* |
| 3 | CrossFire, A Multiplayer game for X-windows |
2 | * CrossFire, A Multiplayer game for X-windows |
| 4 | |
3 | * |
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4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
| 5 | Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | * Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
| 6 | Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (C) 1992 Frank Tore Johansen |
| 7 | |
7 | * |
| 8 | This program is free software; you can redistribute it and/or modify |
8 | * This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
9 | * it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
11 | * (at your option) any later version. |
| 12 | |
12 | * |
| 13 | This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
| 17 | |
17 | * |
| 18 | You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
19 | * along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | |
21 | * |
| 22 | The authors can be reached via e-mail at <crossfire@schmorp.de> |
22 | * The authors can be reached via e-mail at <crossfire@schmorp.de> |
| 23 | */ |
23 | */ |
| 24 | |
24 | |
| 25 | #include <global.h> |
25 | #include <global.h> |
| 26 | #include <random_map.h> |
26 | #include <random_map.h> |
| 27 | #include <dirent.h> |
27 | #include <dirent.h> |
| 28 | #include <sys/stat.h> |
28 | #include <sys/stat.h> |
| 29 | #include <unistd.h> |
29 | #include <unistd.h> |
| 30 | #include "../include/autoconf.h" |
30 | #include "../include/autoconf.h" |
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31 | |
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32 | // NAME_MAX may not be defined on POSIX systems |
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33 | #ifndef NAME_MAX |
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34 | # define NAME_MAX 255 |
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35 | #endif |
| 31 | |
36 | |
| 32 | static int |
37 | static int |
| 33 | pointer_strcmp (const void *p1, const void *p2) |
38 | pointer_strcmp (const void *p1, const void *p2) |
| 34 | { |
39 | { |
| 35 | const char *s1 = *(const char **) p1; |
40 | const char *s1 = *(const char **) p1; |
| … | |
… | |
| 60 | int entries = 0, entry_size = 0; |
65 | int entries = 0, entry_size = 0; |
| 61 | char name[NAME_MAX + 1], **rn = NULL; |
66 | char name[NAME_MAX + 1], **rn = NULL; |
| 62 | struct stat sb; |
67 | struct stat sb; |
| 63 | |
68 | |
| 64 | dp = opendir (dir); |
69 | dp = opendir (dir); |
| 65 | if (dp == NULL) |
70 | if (!dp) |
| 66 | return -1; |
71 | return -1; |
| 67 | |
72 | |
| 68 | while ((d = readdir (dp)) != NULL) |
73 | while ((d = readdir (dp))) |
| 69 | { |
74 | { |
| 70 | sprintf (name, "%s/%s", dir, d->d_name); |
75 | sprintf (name, "%s/%s", dir, d->d_name); |
| 71 | if (skip_dirs) |
76 | if (skip_dirs) |
| 72 | { |
77 | { |
| 73 | stat (name, &sb); |
78 | stat (name, &sb); |
| 74 | if (S_ISDIR (sb.st_mode)) |
79 | if (S_ISDIR (sb.st_mode)) |
| 75 | { |
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| 76 | continue; |
80 | continue; |
| 77 | } |
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| 78 | } |
81 | } |
| 79 | |
82 | |
| 80 | if (entries == entry_size) |
83 | if (entries == entry_size) |
| 81 | { |
84 | { |
| 82 | entry_size += 10; |
85 | entry_size += 10; |
| … | |
… | |
| 108 | sprintf (style_file_path, "%s/%s", dirname, stylename); |
111 | sprintf (style_file_path, "%s/%s", dirname, stylename); |
| 109 | else /* otherwise, just use the dirname. We'll pick a random stylefile. */ |
112 | else /* otherwise, just use the dirname. We'll pick a random stylefile. */ |
| 110 | sprintf (style_file_path, "%s", dirname); |
113 | sprintf (style_file_path, "%s", dirname); |
| 111 | |
114 | |
| 112 | /* is what we were given a directory, or a file? */ |
115 | /* is what we were given a directory, or a file? */ |
| 113 | sprintf (style_file_full_path, "%s/maps%s", settings.datadir, style_file_path); |
116 | sprintf (style_file_full_path, "%s/maps%s.map", settings.datadir, style_file_path); |
| 114 | |
117 | |
| 115 | if (stat (style_file_full_path, &file_stat) == 0 && !S_ISDIR (file_stat.st_mode)) |
118 | if (stat (style_file_full_path, &file_stat) == 0 && !S_ISDIR (file_stat.st_mode)) |
| 116 | style_map = maptile::find_sync (style_file_path); |
119 | style_map = maptile::find_sync (style_file_path); |
| 117 | |
120 | |
| 118 | if (!style_map) /* maybe we were given a directory! */ |
121 | if (!style_map) /* maybe we were given a directory! */ |
| … | |
… | |
| 148 | if (only_subdirs) |
151 | if (only_subdirs) |
| 149 | style_map = 0; |
152 | style_map = 0; |
| 150 | else |
153 | else |
| 151 | { |
154 | { |
| 152 | strcat (style_file_path, "/"); |
155 | strcat (style_file_path, "/"); |
| 153 | strcat (style_file_path, namelist[RANDOM () % n]); |
156 | strcat (style_file_path, namelist[rndm (n)]); |
| 154 | style_map = maptile::find_sync (style_file_path); |
157 | style_map = maptile::find_sync (style_file_path); |
| 155 | } |
158 | } |
| 156 | } |
159 | } |
| 157 | else |
160 | else |
| 158 | { /* find the map closest in difficulty */ |
161 | { /* find the map closest in difficulty */ |
| … | |
… | |
| 166 | if ((mfile_name - 1) == NULL) |
169 | if ((mfile_name - 1) == NULL) |
| 167 | { /* since there isn't a sequence, */ |
170 | { /* since there isn't a sequence, */ |
| 168 | int q; |
171 | int q; |
| 169 | |
172 | |
| 170 | /*pick one at random to recurse */ |
173 | /*pick one at random to recurse */ |
| 171 | style_map = find_style (style_file_path, namelist[RANDOM () % n], difficulty); |
174 | style_map = find_style (style_file_path, namelist[rndm (n)], difficulty); |
| 172 | for (q = 0; q < n; q++) |
175 | for (q = 0; q < n; q++) |
| 173 | free (namelist[q]); |
176 | free (namelist[q]); |
| 174 | free (namelist); |
177 | free (namelist); |
| 175 | return style_map; |
178 | return style_map; |
| 176 | } |
179 | } |
| … | |
… | |
| 203 | style_map->load_sync (); |
206 | style_map->load_sync (); |
| 204 | style_map->deactivate (); |
207 | style_map->deactivate (); |
| 205 | } |
208 | } |
| 206 | |
209 | |
| 207 | return style_map; |
210 | return style_map; |
| 208 | |
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| 209 | } |
211 | } |
| 210 | |
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| 211 | /* picks a random object from a style map. |
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| 212 | * Redone by MSW so it should be faster and not use static |
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| 213 | * variables to generate tables. |
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| 214 | */ |
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| 215 | object * |
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| 216 | pick_random_object (maptile *style) |
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| 217 | { |
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| 218 | /* while returning a null object will result in a crash, that |
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| 219 | * is actually preferable to an infinite loop. That is because |
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| 220 | * most servers will automatically restart in case of crash. |
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| 221 | * Change the logic on getting the random space - shouldn't make |
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| 222 | * any difference, but this seems clearer to me. |
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| 223 | */ |
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| 224 | for (int i = 1000; --i;) |
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| 225 | { |
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| 226 | object *new_obj = style->at (RANDOM () % style->width, RANDOM () % style->height).bot; |
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| 227 | |
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| 228 | if (new_obj) |
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| 229 | return new_obj->head_ (); |
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| 230 | } |
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| 231 | |
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| 232 | // instead of crashing in the unlikely case, try to return *something* |
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| 233 | return get_archetype ("blocked"); |
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| 234 | } |
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