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, uint32_t */
9 #include "readwrite.h" /* for [read/write]_uint[8/16/32][_bigendian](),
10 * try_fopen(), try_fclose(), get_linemax()
12 #include "map_objects.h" /* for struct MapObj, get_player(), read_map_objects(),
15 #include "map_object_actions.h" /* for struct MapObjAct */
16 #include "map.h" /* for Map struct, is_passable() */
17 #include "main.h" /* for world global */
18 #include "yx_uint16.h" /* for yx_uint16 struct */
19 #include "rexit.h" /* for exit_err(), exit_trouble() */
20 #include "wincontrol.h" /* for init_winconfs(), init_wins(), free_winconfs(),
21 * sorted_wintoggle_and_activate()
23 #include "windows.h" /* for suspend_win() */
24 #include "command_db.h" /* for is_command_id_shortdsc() */
28 extern uint16_t rrand()
30 /* Constants as recommended by POSIX.1-2001 (see man page rand(3)). */
31 world.seed = ((world.seed * 1103515245) + 12345) % 4294967296;
32 return (world.seed >> 16); /* Ignore less random least significant bits. */
37 extern void * try_malloc(size_t size, char * f)
39 void * p = malloc(size);
40 exit_trouble(NULL == p, f, "malloc()");
46 extern void * try_calloc(size_t size1, size_t size2, char * f)
48 void * p = calloc(size1, size2);
49 exit_trouble(NULL == p, f, "calloc()");
55 extern void check_files_xor(char * p1, char * p2)
57 char * msg1 = "A file '";
58 char * msg2 = "' exists, but no file '";
59 char * msg3 = "'. If everything was in order, both or noe would exist. "
60 "The game won't start until this is corrected.";
61 uint16_t size = strlen(msg1) + strlen(p1) + strlen(msg2) + strlen(p2)
64 if (!access(p1, F_OK) && access(p2, F_OK))
66 sprintf(msg, "%s%s%s%s%s", msg1, p1, msg2, p2, msg3);
70 else if (access(p1, F_OK) && !access(p2, F_OK))
72 sprintf(msg, "%s%s%s%s%s", msg1, p2, msg2, p1, msg3);
80 extern void check_tempfile(char * path)
82 char * msg1 = "A file '";
83 char * msg2 = "' exists, probably from a corrupted previous file saving "
84 "process. To avoid corruption of game files, the game won't "
85 "start until it is removed or renamed.";
86 uint16_t size = strlen(msg1) + strlen(path) + strlen(msg2);
88 sprintf(msg, "%s%s%s", msg1, path, msg2);
89 exit_err(!access(path, F_OK), msg);
94 extern void save_interface_conf()
96 save_keybindings("config/keybindings_global", &world.kb_global);
97 save_keybindings("config/keybindings_wingeom", &world.kb_wingeom);
98 save_keybindings("config/keybindings_winkeys", &world.kb_winkeys);
104 extern void load_interface_conf()
106 init_keybindings("config/keybindings_global", &world.kb_global);
107 init_keybindings("config/keybindings_wingeom", &world.kb_wingeom);
108 init_keybindings("config/keybindings_winkeys", &world.kb_winkeys);
111 sorted_wintoggle_and_activate();
116 extern void unload_interface_conf()
118 free_keybindings(world.kb_global.kbs);
119 free_keybindings(world.kb_wingeom.kbs);
120 free_keybindings(world.kb_winkeys.kbs);
121 while (0 != world.wmeta->active)
123 suspend_win(world.wmeta->active);
130 extern void reload_interface_conf()
132 unload_interface_conf();
133 load_interface_conf();
138 extern void update_log(char * text)
140 char * f_name = "update_log()";
141 static char * last_msg; /* TODO: valgrind is dissatisfied */
142 if (0 == last_msg) /* with this calloc'd pointer not */
143 { /* being freed. Rectify this? */
144 last_msg = try_calloc(1, sizeof(char), f_name);
147 uint16_t len_old = strlen(world.log);
148 if (0 == strcmp(last_msg, text))
150 uint16_t len_whole = len_old + 1;
151 new_text = try_calloc(len_whole + 1, sizeof(char), f_name);
152 memcpy(new_text, world.log, len_old);
153 memcpy(new_text + len_old, ".", 1);
157 uint16_t len_new = strlen(text);
158 uint16_t len_whole = len_old + len_new + 1;
159 new_text = try_calloc(len_whole, sizeof(char), f_name);
160 memcpy(new_text, world.log, len_old);
161 memcpy(new_text + len_old, text, len_new);
162 last_msg = try_calloc(len_new + 1, sizeof(char), f_name);
163 memcpy(last_msg, text, len_new);
166 world.log = new_text;
171 extern uint16_t center_offset(uint16_t pos, uint16_t mapsize,
175 if (mapsize > framesize)
177 if (pos > framesize / 2)
179 if (pos < mapsize - (framesize / 2))
181 offset = pos - (framesize / 2);
185 offset = mapsize - framesize;
194 extern void turn_over(char action)
196 char * f_name = "turn_over()";
197 char * err_write = "Trouble in turn_over() with write_uint8() "
198 "writing to opened file 'record_tmp'.";
200 char * recordfile_tmp = "record_tmp";
201 char * recordfile = "record";
202 if (1 == world.interactive)
204 FILE * file_old = try_fopen(recordfile, "r", f_name);
205 FILE * file_new = try_fopen(recordfile_tmp, "w", f_name);
206 char c = fgetc(file_old);
209 exit_err(write_uint8(c, file_new), err_write);
212 try_fclose(file_old, f_name);
213 exit_err(write_uint8(action, file_new), err_write);
214 if ( is_command_id_shortdsc(action, "drop")
215 || is_command_id_shortdsc(action, "use"))
217 exit_err(write_uint8(world.inventory_select, file_new), err_write);
219 try_fclose_unlink_rename(file_new, recordfile_tmp, recordfile, f_name);
222 struct MapObj * player = get_player();
223 struct MapObj * map_object = player;
224 uint8_t first_round = 1;
225 while (0 < player->lifepoints)
227 if (NULL == map_object)
230 map_object = world.map_objs;
232 if (0 < map_object->lifepoints) /* map_object is animate. */
234 if (0 == first_round && 0 == map_object->progress)
236 if (map_object == player)
241 map_object->command = get_moa_id_by_name("move");
242 map_object->arg = sel[rrand() % 4];
245 map_object->progress++;
246 struct MapObjAct * moa = world.map_obj_acts;
247 while (moa->id != map_object->command)
251 if (map_object->progress == moa->effort)
253 moa->func(map_object);
254 map_object->progress = 0;
257 map_object = map_object->next;
263 extern void save_game()
265 char * f_name = "save_game()";
266 char * savefile_tmp = "savefile_tmp";
267 char * savefile = "savefile";
268 FILE * file = try_fopen(savefile_tmp, "w", f_name);
270 sprintf(line, "%u\n", world.mapseed);
271 try_fwrite(line, strlen(line), 1, file, f_name);
272 sprintf(line, "%u\n", world.seed);
273 try_fwrite(line, strlen(line), 1, file, f_name);
274 sprintf(line, "%u\n", world.turn);
275 try_fwrite(line, strlen(line), 1, file, f_name);
276 sprintf(line, "%u\n", world.score);
277 try_fwrite(line, strlen(line), 1, file, f_name);
278 write_map_objects(file);
279 try_fclose_unlink_rename(file, savefile_tmp, savefile, f_name);
284 extern void load_game()
286 char * f_name = "load_game2()";
287 char * filename = "savefile";
288 FILE * file = try_fopen(filename, "r", f_name);
289 uint16_t linemax = get_linemax(file, f_name);
290 char line[linemax + 1];
291 try_fgets(line, linemax + 1, file, f_name);
292 world.mapseed = atoi(line);
293 try_fgets(line, linemax + 1, file, f_name);
294 world.seed = atoi(line);
295 try_fgets(line, linemax + 1, file, f_name);
296 world.turn = atoi(line);
297 try_fgets(line, linemax + 1, file, f_name);
298 world.score = atoi(line);
299 read_map_objects(file, line, linemax);
300 try_fclose(file, f_name);
305 extern struct yx_uint16 find_passable_pos(struct Map * map)
307 struct yx_uint16 pos;
308 for (pos.y = pos.x = 0; 0 == is_passable(map, pos);)
310 pos.y = rrand() % map->size.y;
311 pos.x = rrand() % map->size.x;
318 extern void nav_inventory(char dir)
322 if (world.inventory_select > 0)
324 world.inventory_select--;
328 struct MapObj * player = get_player();
329 struct MapObj * owned = player->owns;
335 for (; NULL != owned->next; owned = owned->next, n_owned++);
336 if (world.inventory_select < n_owned)
338 world.inventory_select++;