4 #include <errno.h> /* for errno */
5 #include <unistd.h> /* for unlink(), acess() */
6 #include <stdlib.h> /* for size_t, calloc(), free() */
7 #include <string.h> /* for strlen(), strcmp(), memcpy() */
8 #include <stdint.h> /* for uint8_t, uint16_t */
9 #include "readwrite.h" /* for try_fopen(), try_fclose(), get_linemax(),
10 * try_fputc(), try_fgetc()
12 #include "map_objects.h" /* for struct MapObj, get_player(), read_map_objects(),
15 #include "map_object_actions.h" /* for struct MapObjAct */
16 #include "ai.h" /* for pretty_dumb_ai() */
17 #include "map.h" /* for Map struct, is_passable() */
18 #include "main.h" /* for world global */
19 #include "yx_uint16.h" /* for yx_uint16 struct */
20 #include "rexit.h" /* for exit_err(), exit_trouble() */
21 #include "wincontrol.h" /* for init_winconfs(), init_wins(), free_winconfs(),
22 * sorted_wintoggle_and_activate()
24 #include "windows.h" /* for suspend_win() */
25 #include "command_db.h" /* for is_command_id_shortdsc() */
29 extern uint16_t rrand()
31 /* Constants as recommended by POSIX.1-2001 (see man page rand(3)). */
32 world.seed = ((world.seed * 1103515245) + 12345) % 4294967296;
33 return (world.seed >> 16); /* Ignore less random least significant bits. */
38 extern void * try_malloc(size_t size, char * f)
40 void * p = malloc(size);
41 exit_trouble(NULL == p, f, "malloc()");
47 extern void * try_calloc(size_t size1, size_t size2, char * f)
49 void * p = calloc(size1, size2);
50 exit_trouble(NULL == p, f, "calloc()");
56 extern void check_files_xor(char * p1, char * p2)
58 char * msg1 = "A file '";
59 char * msg2 = "' exists, but no file '";
60 char * msg3 = "'. If everything was in order, both or noe would exist. "
61 "The game won't start until this is corrected.";
62 uint16_t size = strlen(msg1) + strlen(p1) + strlen(msg2) + strlen(p2)
65 if (!access(p1, F_OK) && access(p2, F_OK))
67 sprintf(msg, "%s%s%s%s%s", msg1, p1, msg2, p2, msg3);
71 else if (access(p1, F_OK) && !access(p2, F_OK))
73 sprintf(msg, "%s%s%s%s%s", msg1, p2, msg2, p1, msg3);
81 extern void check_tempfile(char * path)
83 char * msg1 = "A file '";
84 char * msg2 = "' exists, probably from a corrupted previous file saving "
85 "process. To avoid corruption of game files, the game won't "
86 "start until it is removed or renamed.";
87 uint16_t size = strlen(msg1) + strlen(path) + strlen(msg2);
89 sprintf(msg, "%s%s%s", msg1, path, msg2);
90 exit_err(!access(path, F_OK), msg);
95 extern void save_interface_conf()
97 save_keybindings("config/keybindings_global", &world.kb_global);
98 save_keybindings("config/keybindings_wingeom", &world.kb_wingeom);
99 save_keybindings("config/keybindings_winkeys", &world.kb_winkeys);
105 extern void load_interface_conf()
107 init_keybindings("config/keybindings_global", &world.kb_global);
108 init_keybindings("config/keybindings_wingeom", &world.kb_wingeom);
109 init_keybindings("config/keybindings_winkeys", &world.kb_winkeys);
112 sorted_wintoggle_and_activate();
117 extern void unload_interface_conf()
119 free_keybindings(world.kb_global.kbs);
120 free_keybindings(world.kb_wingeom.kbs);
121 free_keybindings(world.kb_winkeys.kbs);
122 while (0 != world.wmeta->active)
124 suspend_win(world.wmeta->active);
131 extern void reload_interface_conf()
133 unload_interface_conf();
134 load_interface_conf();
139 extern void update_log(char * text)
141 char * f_name = "update_log()";
142 static char * last_msg; /* TODO: valgrind is dissatisfied */
143 if (0 == last_msg) /* with this calloc'd pointer not */
144 { /* being freed. Rectify this? */
145 last_msg = try_calloc(1, sizeof(char), f_name);
148 uint16_t len_old = strlen(world.log);
149 if (0 == strcmp(last_msg, text))
151 uint16_t len_whole = len_old + 1;
152 new_text = try_calloc(len_whole + 1, sizeof(char), f_name);
153 memcpy(new_text, world.log, len_old);
154 memcpy(new_text + len_old, ".", 1);
158 uint16_t len_new = strlen(text);
159 uint16_t len_whole = len_old + len_new + 1;
160 new_text = try_calloc(len_whole, sizeof(char), f_name);
161 memcpy(new_text, world.log, len_old);
162 memcpy(new_text + len_old, text, len_new);
163 last_msg = try_calloc(len_new + 1, sizeof(char), f_name);
164 memcpy(last_msg, text, len_new);
167 world.log = new_text;
172 extern uint16_t center_offset(uint16_t pos, uint16_t mapsize,
176 if (mapsize > framesize)
178 if (pos > framesize / 2)
180 if (pos < mapsize - (framesize / 2))
182 offset = pos - (framesize / 2);
186 offset = mapsize - framesize;
195 extern void turn_over(char action)
197 char * f_name = "turn_over()";
199 char * recordfile_tmp = "record_tmp";
200 char * recordfile = "record";
201 if (1 == world.interactive)
203 FILE * file_old = try_fopen(recordfile, "r", f_name);
204 FILE * file_new = try_fopen(recordfile_tmp, "w", f_name);
205 int c = try_fgetc(file_old, f_name);
208 try_fputc((uint8_t) c, file_new, f_name);
209 c = try_fgetc(file_old, f_name);
211 try_fclose(file_old, f_name);
212 try_fputc(action, file_new, f_name);
213 if ( is_command_id_shortdsc(action, "drop")
214 || is_command_id_shortdsc(action, "use"))
216 try_fputc(world.inventory_select, file_new, f_name);
218 try_fclose_unlink_rename(file_new, recordfile_tmp, recordfile, f_name);
221 struct MapObj * player = get_player();
222 struct MapObj * map_object = player;
223 uint8_t first_round = 1;
224 while (0 < player->lifepoints)
226 if (NULL == map_object)
229 map_object = world.map_objs;
231 if (0 < map_object->lifepoints) /* map_object is animate. */
233 if (0 == first_round && 0 == map_object->progress)
235 if (map_object == player)
239 pretty_dumb_ai(map_object);
242 map_object->progress++;
243 struct MapObjAct * moa = world.map_obj_acts;
244 while (moa->id != map_object->command)
248 if (map_object->progress == moa->effort)
250 moa->func(map_object);
251 map_object->progress = 0;
254 map_object = map_object->next;
260 extern void save_game()
262 char * f_name = "save_game()";
263 char * savefile_tmp = "savefile_tmp";
264 char * savefile = "savefile";
265 FILE * file = try_fopen(savefile_tmp, "w", f_name);
267 sprintf(line, "%u\n", world.mapseed);
268 try_fwrite(line, strlen(line), 1, file, f_name);
269 sprintf(line, "%u\n", world.seed);
270 try_fwrite(line, strlen(line), 1, file, f_name);
271 sprintf(line, "%u\n", world.turn);
272 try_fwrite(line, strlen(line), 1, file, f_name);
273 sprintf(line, "%u\n", world.score);
274 try_fwrite(line, strlen(line), 1, file, f_name);
275 write_map_objects(file);
276 try_fclose_unlink_rename(file, savefile_tmp, savefile, f_name);
281 extern void load_game()
283 char * f_name = "load_game2()";
284 char * filename = "savefile";
285 FILE * file = try_fopen(filename, "r", f_name);
286 uint16_t linemax = get_linemax(file, f_name);
287 char line[linemax + 1];
288 try_fgets(line, linemax + 1, file, f_name);
289 world.mapseed = atoi(line);
290 try_fgets(line, linemax + 1, file, f_name);
291 world.seed = atoi(line);
292 try_fgets(line, linemax + 1, file, f_name);
293 world.turn = atoi(line);
294 try_fgets(line, linemax + 1, file, f_name);
295 world.score = atoi(line);
296 read_map_objects(file, line, linemax);
297 try_fclose(file, f_name);
302 extern struct yx_uint16 find_passable_pos(struct Map * map)
304 struct yx_uint16 pos;
305 for (pos.y = pos.x = 0; 0 == is_passable(map, pos);)
307 pos.y = rrand() % map->size.y;
308 pos.x = rrand() % map->size.x;
315 extern void nav_inventory(char dir)
319 if (world.inventory_select > 0)
321 world.inventory_select--;
325 struct MapObj * player = get_player();
326 struct MapObj * owned = player->owns;
332 for (; NULL != owned->next; owned = owned->next, n_owned++);
333 if (world.inventory_select < n_owned)
335 world.inventory_select++;