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Comparing deliantra/server/server/apply.C (file contents):
Revision 1.238 by root, Sun Apr 4 04:10:47 2010 UTC vs.
Revision 1.253 by root, Sat Apr 10 05:12:57 2010 UTC

… …
30#include <skills.h> 30#include <skills.h>
31#include <tod.h> 31#include <tod.h>
32 32
33#include <sproto.h> 33#include <sproto.h>
34 34
35/** 35// these must be in the inventory before they can be applied
36 * Check if op should abort moving victim because of it's race or slaying.
37 * Returns 1 if it should abort, returns 0 if it should continue.
38 */
39int
40should_director_abort (object *op, object *victim)
41{
42 int arch_flag, name_flag, race_flag;
43 36
44 /* Get flags to determine what of arch, name, and race should be checked. 37static const struct apply_types_inv_only : typeset
45 * This is stored in subtype, and is a bitmask, the LSB is the arch flag, 38{
46 * the next is the name flag, and the last is the race flag. Also note, 39 apply_types_inv_only ()
47 * if subtype is set to zero, that also goes to defaults of all affecting
48 * it. Examples:
49 * subtype 1: only arch
50 * subtype 3: arch or name
51 * subtype 5: arch or race
52 * subtype 7: all three
53 */
54 if (op->subtype)
55 { 40 {
56 arch_flag = op->subtype & 1; 41 set (WEAPON);
57 name_flag = op->subtype & 2; 42 set (ARMOUR);
58 race_flag = op->subtype & 4; 43 set (BOOTS);
44 set (GLOVES);
45 set (AMULET);
46 set (GIRDLE);
47 set (BRACERS);
48 set (SHIELD);
49 set (HELMET);
50 set (RING);
51 set (CLOAK);
52 set (WAND);
53 set (ROD);
54 set (HORN);
55 set (SKILL);
56 set (SPELL);
57 set (BOW);
58 set (RANGED);
59 set (BUILDER);
60 set (SKILL_TOOL);
59 } 61 }
60 else 62} apply_types_inv_only;
63
64// these only make sense for the player
65
66static const struct apply_types_player_only : typeset
67{
68 apply_types_player_only ()
61 { 69 {
62 arch_flag = 1; 70 set (EXIT);
63 name_flag = 1; 71 set (BOOK);
64 race_flag = 1; 72 set (SIGN);
73 set (BOOK);
74 set (SKILLSCROLL);
75 set (SPELLBOOK);
76 set (INSCRIBABLE);
77 set (TREASURE);
78 set (SAVEBED);
79 set (ARMOUR_IMPROVER);
80 set (WEAPON_IMPROVER);
81 set (CLOCK);
82 set (MENU);
83 set (LIGHTER); /* for lighting torches/lanterns/etc */
65 } 84 }
85} apply_types_player_only;
66 86
67 /* If the director has race set, only affect objects with a arch, 87// applying these _can_ be attempted, others cannot
68 * name or race that matches. 88// be applied at all. used by e.g. apply below.
69 */
70 if ((op->race) &&
71 ((!(victim->arch && arch_flag && victim->arch->archname) || op->race != victim->arch->archname)) &&
72 ((!(victim->name && name_flag) || op->race != victim->name)) &&
73 ((!(victim->race && race_flag) || op->race != victim->race)))
74 return 1;
75 89
76 /* If the director has slaying set, only affect objects where none 90static const struct apply_types : typeset
77 * of arch, name, or race match.
78 */
79 if ((op->slaying) && (((victim->arch && arch_flag && victim->arch->archname && op->slaying == victim->arch->archname))) ||
80 ((victim->name && name_flag && op->slaying == victim->name)) ||
81 ((victim->race && race_flag && op->slaying == victim->race)))
82 return 1;
83
84 return 0;
85}
86
87/**
88 * This handles a player dropping money on an altar to identify stuff.
89 * It'll identify marked item, if none all items up to dropped money.
90 * Return value: 1 if money was destroyed, 0 if not.
91 */
92static int
93apply_id_altar (object *money, object *altar, object *pl)
94{ 91{
95 dynbuf_text &buf = msg_dynbuf; buf.clear (); 92 apply_types ()
96 93 : typeset ((typeset)apply_types_player_only | (typeset)apply_types_inv_only)
97 if (!pl || pl->type != PLAYER)
98 return 0;
99
100 /* Check for MONEY type is a special hack - it prevents 'nothing needs
101 * identifying' from being printed out more than it needs to be.
102 */
103 if (!check_altar_sacrifice (altar, money, pl) || money->type != MONEY)
104 return 0;
105
106 /* if the player has a marked item, identify that if it needs to be
107 * identified. If it doesn't, then go through the player inventory.
108 */
109 if (object *marked = find_marked_object (pl))
110 if (!QUERY_FLAG (marked, FLAG_IDENTIFIED) && need_identify (marked))
111 {
112 if (operate_altar (altar, &money, pl))
113 {
114 identify (marked);
115
116 buf.printf ("You have %s.\r", long_desc (marked, pl));
117 if (marked->msg)
118 buf << "The item has a story:\r" << marked->msg << "\n\n";
119
120 return !money;
121 }
122 }
123
124 for (object *id = pl->inv; id; id = id->below)
125 { 94 {
126 if (!QUERY_FLAG (id, FLAG_IDENTIFIED) && !id->invisible && need_identify (id)) 95 set (T_HANDLE);
127 { 96 set (TRIGGER);
128 if (operate_altar (altar, &money, pl)) 97 set (SCROLL);
129 { 98 set (POTION);
130 identify (id); 99 set (CLOSE_CON);
131 100 set (CONTAINER);
132 buf.printf ("You have %s.\r", long_desc (id, pl)); 101 set (LAMP);
133 if (id->msg) 102 set (TORCH);
134 buf << "The item has a story:\r" << id->msg << "\n\n"; 103 set (DRINK);
135 104 set (FOOD);
136 /* If no more money, might as well quit now */ 105 set (FLESH);
137 if (!money || !check_altar_sacrifice (altar, money)) 106 set (POISON);
138 break; 107 set (POWER_CRYSTAL);
139 } 108 set (ITEM_TRANSFORMER);
140 else
141 {
142 LOG (llevError, "check_id_altar: Couldn't do sacrifice when we should have been able to\n");
143 break;
144 }
145 }
146 } 109 }
147 110} apply_types;
148 if (buf.empty ())
149 pl->failmsg ("You have nothing that needs identifying");
150 else
151 pl->contr->infobox (MSG_CHANNEL ("identify"), buf);
152
153 return !money;
154}
155
156/**
157 * This checks whether the object has a "on_use_yield" field, and if so generated and drops
158 * matching item.
159 **/
160void
161handle_apply_yield (object *tmp)
162{
163 if (shstr_tmp yield = tmp->kv (shstr_on_use_yield))
164 archetype::get (yield)->insert_at (tmp, tmp, INS_BELOW_ORIGINATOR);
165}
166
167/**
168 * Handles applying a potion.
169 */
170int
171apply_potion (object *op, object *tmp)
172{
173 int got_one = 0, i;
174 object *force = 0;
175
176 object *floor = GET_MAP_OB (op->map, op->x, op->y);
177
178 if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_SAFE)
179 {
180 op->failmsg ("Gods prevent you from using this here, it's sacred ground!");
181
182 CLEAR_FLAG (tmp, FLAG_APPLIED);
183 return 0;
184 }
185
186 if (op->type == PLAYER)
187 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
188 identify (tmp);
189
190 handle_apply_yield (tmp);
191
192 /* Potion of restoration - only for players */
193 if (op->type == PLAYER && (tmp->attacktype & AT_DEPLETE))
194 {
195 object *depl;
196 archetype *at;
197
198 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
199 {
200 op->drain_stat ();
201 op->update_stats ();
202 tmp->decrease ();
203 return 1;
204 }
205
206 if (!(at = archetype::find (shstr_depletion)))
207 {
208 LOG (llevError, "Could not find archetype depletion\n");
209 return 0;
210 }
211
212 depl = present_arch_in_ob (at, op);
213
214 if (depl)
215 {
216 for (i = 0; i < NUM_STATS; i++)
217 if (depl->stats.stat (i))
218 op->statusmsg (restore_msg[i]);
219
220 depl->destroy ();
221 op->update_stats ();
222 }
223 else
224 op->statusmsg ("Your potion had no effect.");
225
226 tmp->decrease ();
227 return 1;
228 }
229
230 /* improvement potion - only for players */
231 if (op->type == PLAYER && (tmp->attacktype & AT_GODPOWER))
232 {
233 for (i = 1; i < min (11, op->level); i++)
234 {
235 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
236 {
237 if (op->contr->levhp[i] != 1)
238 {
239 op->contr->levhp[i] = 1;
240 break;
241 }
242
243 if (op->contr->levsp[i] != 1)
244 {
245 op->contr->levsp[i] = 1;
246 break;
247 }
248
249 if (op->contr->levgrace[i] != 1)
250 {
251 op->contr->levgrace[i] = 1;
252 break;
253 }
254 }
255 else
256 {
257 if (op->contr->levhp[i] < 9)
258 {
259 op->contr->levhp[i] = 9;
260 break;
261 }
262
263 if (op->contr->levsp[i] < 6)
264 {
265 op->contr->levsp[i] = 6;
266 break;
267 }
268
269 if (op->contr->levgrace[i] < 3)
270 {
271 op->contr->levgrace[i] = 3;
272 break;
273 }
274 }
275 }
276
277 /* Just makes checking easier */
278 if (i < min (11, op->level))
279 got_one = 1;
280
281 if (!QUERY_FLAG (tmp, FLAG_CURSED) && !QUERY_FLAG (tmp, FLAG_DAMNED))
282 {
283 if (got_one)
284 {
285 op->update_stats ();
286 op->statusmsg ("The Gods smile upon you and remake you "
287 "a little more in their image. "
288 "You feel a little more perfect.", NDI_GREEN);
289 }
290 else
291 op->statusmsg ("The potion had no effect - you are already perfect.");
292 }
293 else
294 { /* cursed potion */
295 if (got_one)
296 {
297 op->update_stats ();
298 op->failmsg ("The Gods are angry and punish you.");
299 }
300 else
301 op->statusmsg ("You are fortunate that you are so pathetic.", NDI_DK_ORANGE);
302 }
303
304 tmp->decrease ();
305 return 1;
306 }
307
308
309 /* A potion that casts a spell. Healing, restore spellpoint (power potion)
310 * and heroism all fit into this category. Given the spell object code,
311 * there is no limit to the number of spells that potions can be cast,
312 * but direction is problematic to try and imbue fireball potions for example.
313 */
314 if (tmp->inv)
315 {
316 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
317 {
318 op->failmsg ("Yech! Your lungs are on fire!");
319 create_exploding_ball_at (op, op->level);
320 }
321 else
322 cast_spell (op, tmp, op->facing, tmp->inv, NULL);
323
324 tmp->decrease ();
325
326 /* if youre dead, no point in doing this... */
327 if (!QUERY_FLAG (op, FLAG_REMOVED))
328 op->update_stats ();
329
330 return 1;
331 }
332
333 /* Deal with protection potions */
334 force = NULL;
335 for (i = 0; i < NROFATTACKS; i++)
336 {
337 if (tmp->resist[i])
338 {
339 if (!force)
340 force = get_archetype (FORCE_NAME);
341
342 memcpy (force->resist, tmp->resist, sizeof (tmp->resist));
343 force->type = POTION_EFFECT;
344 break; /* Only need to find one protection since we copy entire batch */
345 }
346 }
347
348 /* This is a protection potion */
349 if (force)
350 {
351 /* cursed items last longer */
352 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
353 {
354 force->stats.food *= 10;
355 for (i = 0; i < NROFATTACKS; i++)
356 if (force->resist[i] > 0)
357 force->resist[i] = -force->resist[i]; /* prot => vuln */
358 }
359
360 force->speed_left = -1;
361 force = insert_ob_in_ob (force, op);
362 CLEAR_FLAG (tmp, FLAG_APPLIED);
363 SET_FLAG (force, FLAG_APPLIED);
364 change_abil (op, force);
365 tmp->decrease ();
366 return 1;
367 }
368
369 /* Only thing left are the stat potions */
370 if (op->type == PLAYER)
371 { /* only for players */
372 if ((QUERY_FLAG (tmp, FLAG_CURSED)
373 || QUERY_FLAG (tmp, FLAG_DAMNED))
374 && tmp->value != 0)
375 CLEAR_FLAG (tmp, FLAG_APPLIED);
376 else
377 SET_FLAG (tmp, FLAG_APPLIED);
378
379 if (!change_abil (op, tmp))
380 op->statusmsg ("Nothing happened.");
381 }
382
383 /* CLEAR_FLAG is so that if the character has other potions
384 * that were grouped with the one consumed, his
385 * stat will not be raised by them. fix_player just clears
386 * up all the stats.
387 */
388 CLEAR_FLAG (tmp, FLAG_APPLIED);
389 op->update_stats ();
390 tmp->decrease ();
391 return 1;
392}
393 111
394/**************************************************************************** 112/****************************************************************************
395 * Weapon improvement code follows 113 * Weapon improvement code follows
396 ****************************************************************************/ 114 ****************************************************************************/
397 115
… …
479 if (improver->slaying) 197 if (improver->slaying)
480 { 198 {
481 count = check_item (op, improver->slaying); 199 count = check_item (op, improver->slaying);
482 if (count < 1) 200 if (count < 1)
483 { 201 {
484 op->failmsg (format ("The gods want more %ss", &improver->slaying)); 202 op->failmsgf ("The gods want more %ss", &improver->slaying);
485 return 0; 203 return 0;
486 } 204 }
487 } 205 }
488 else 206 else
489 count = 1; 207 count = 1;
… …
674 sacrifice_needed *= 2; 392 sacrifice_needed *= 2;
675 393
676 sacrifice_count = check_sacrifice (op, improver); 394 sacrifice_count = check_sacrifice (op, improver);
677 if (sacrifice_count < sacrifice_needed) 395 if (sacrifice_count < sacrifice_needed)
678 { 396 {
679 op->failmsg (format ("You need at least %d %s.", sacrifice_needed, &improver->slaying)); 397 op->failmsgf ("You need at least %d %s.", sacrifice_needed, &improver->slaying);
680 return 0; 398 return 0;
681 } 399 }
682 400
683 eat_item (op, improver->slaying, sacrifice_needed); 401 eat_item (op, improver->slaying, sacrifice_needed);
684 weapon->item_power++; 402 weapon->item_power++;
… …
1013 return 1; 731 return 1;
1014 } 732 }
1015 else if (!sack->env) 733 else if (!sack->env)
1016 { 734 {
1017 // active, but not ours: some other player has opened it 735 // active, but not ours: some other player has opened it
1018 op->failmsg (format ("Somebody else is using the %s already.", query_name (sack))); 736 op->failmsgf ("Somebody else is using the %s already.", query_name (sack));
1019 return 1; 737 return 1;
1020 } 738 }
1021 739
1022 // fall through to opening it (active in inv) 740 // fall through to opening it (active in inv)
1023 } 741 }
… …
1301 EXIT_Y (trap) + freearr_y[dir], 1019 EXIT_Y (trap) + freearr_y[dir],
1302 0, victim); 1020 0, victim);
1303} 1021}
1304 1022
1305/** 1023/**
1306 * 'victim' moves onto 'trap'
1307 * 'victim' leaves 'trap'
1308 * effect is determined by move_on/move_off of trap and move_type of victime.
1309 *
1310 * originator: Player, monster or other object that caused 'victim' to move
1311 * onto 'trap'. Will receive messages caused by this action. May be NULL.
1312 * However, some types of traps require an originator to function.
1313 */
1314void
1315move_apply (object *trap, object *victim, object *originator)
1316{
1317 static int recursion_depth = 0;
1318
1319 /* Only exits affect DMs. */
1320 if (QUERY_FLAG (victim, FLAG_WIZPASS) && trap->type != EXIT && trap->type != SIGN)
1321 return;
1322
1323 /* move_apply() is the most likely candidate for causing unwanted and
1324 * possibly unlimited recursion.
1325 */
1326 /* The following was changed because it was causing perfectly correct
1327 * maps to fail. 1) it's not an error to recurse:
1328 * rune detonates, summoning monster. monster lands on nearby rune.
1329 * nearby rune detonates. This sort of recursion is expected and
1330 * proper. This code was causing needless crashes.
1331 */
1332 if (recursion_depth >= 500)
1333 {
1334 LOG (llevDebug, "WARNING: move_apply(): aborting recursion "
1335 "[trap arch %s, name %s; victim arch %s, name %s]\n", &trap->arch->archname, &trap->name, &victim->arch->archname, &victim->name);
1336 return;
1337 }
1338
1339 recursion_depth++;
1340 if (trap->head)
1341 trap = trap->head;
1342
1343 if (!INVOKE_OBJECT (MOVE_TRIGGER, trap, ARG_OBJECT (victim), ARG_OBJECT (originator)))
1344 switch (trap->type)
1345 {
1346 case PLAYERMOVER:
1347 if (trap->attacktype && (trap->level || victim->type != PLAYER) && !should_director_abort (trap, victim))
1348 {
1349 if (!trap->stats.maxsp)
1350 trap->stats.maxsp = 2;
1351
1352 /* Is this correct? From the docs, it doesn't look like it
1353 * should be divided by trap->speed
1354 */
1355 victim->speed_left = -trap->stats.maxsp * victim->speed / trap->speed;
1356
1357 /* Just put in some sanity check. I think there is a bug in the
1358 * above with some objects have zero speed, and thus the player
1359 * getting permanently paralyzed.
1360 */
1361 if (victim->speed_left < -50.f)
1362 victim->speed_left = -50.f;
1363 /* LOG(llevDebug, "apply, playermove, player speed_left=%f\n", victim->speed_left); */
1364 }
1365 break;
1366
1367 case SPINNER:
1368 if (victim->direction)
1369 {
1370 victim->direction = absdir (victim->direction - trap->stats.sp);
1371 update_turn_face (victim);
1372 }
1373 break;
1374
1375 case DIRECTOR:
1376 if (victim->direction && !should_director_abort (trap, victim))
1377 {
1378 victim->direction = trap->stats.sp;
1379 update_turn_face (victim);
1380 }
1381 break;
1382
1383 case BUTTON:
1384 case PEDESTAL:
1385 case T_MATCH:
1386 update_button (trap, originator);
1387 break;
1388
1389 case ALTAR:
1390 /* sacrifice victim on trap */
1391 apply_altar (trap, victim, originator);
1392 break;
1393
1394 case THROWN_OBJ:
1395 if (trap->inv == NULL)
1396 break;
1397 /* fallthrough */
1398
1399 case ARROW:
1400 /* bad bug: monster throw a object, make a step forwards, step on object ,
1401 * trigger this here and get hit by own missile - and will be own enemy.
1402 * Victim then is his own enemy and will start to kill herself (this is
1403 * removed) but we have not synced victim and his missile. To avoid senseless
1404 * action, we avoid hits here
1405 */
1406 if ((QUERY_FLAG (victim, FLAG_ALIVE) && trap->has_active_speed ())
1407 && trap->owner != victim)
1408 hit_with_arrow (trap, victim);
1409 break;
1410
1411 case SPELL_EFFECT:
1412 apply_spell_effect (trap, victim);
1413 break;
1414
1415 case TRAPDOOR:
1416 {
1417 int max, sound_was_played;
1418 object *ab, *ab_next;
1419
1420 if (!trap->value)
1421 {
1422 int tot;
1423
1424 for (ab = trap->above, tot = 0; ab; ab = ab->above)
1425 if ((ab->move_type && trap->move_on) || ab->move_type == 0)
1426 tot += ab->head_ ()->total_weight ();
1427
1428 if (!(trap->value = (tot > trap->weight) ? 1 : 0))
1429 break;
1430
1431 SET_ANIMATION (trap, trap->value);
1432 update_object (trap, UP_OBJ_FACE);
1433 }
1434
1435 for (ab = trap->above, max = 100, sound_was_played = 0; --max && ab; ab = ab_next)
1436 {
1437 /* need to set this up, since if we do transfer the object,
1438 * ab->above would be bogus
1439 */
1440 ab_next = ab->above;
1441
1442 if ((ab->move_type && trap->move_on) || ab->move_type == 0)
1443 {
1444 if (!sound_was_played)
1445 {
1446 trap->play_sound (trap->sound ? trap->sound : sound_find ("fall_hole"));
1447 sound_was_played = 1;
1448 }
1449
1450 ab->statusmsg ("You fall into a trapdoor!", NDI_RED);
1451 transfer_ob (ab, EXIT_X (trap), EXIT_Y (trap), 0, ab);
1452 }
1453 }
1454 break;
1455 }
1456
1457 case CONVERTER:
1458 if (convert_item (victim, trap) < 0)
1459 {
1460 originator->failmsg (format ("The %s seems to be broken!", query_name (trap)));
1461 archetype::get (shstr_burnout)->insert_at (trap, trap);
1462 }
1463
1464 break;
1465
1466 case TRIGGER_BUTTON:
1467 case TRIGGER_PEDESTAL:
1468 case TRIGGER_ALTAR:
1469 check_trigger (trap, victim, originator);
1470 break;
1471
1472 case DEEP_SWAMP:
1473 walk_on_deep_swamp (trap, victim);
1474 break;
1475
1476 case CHECK_INV:
1477 check_inv (victim, trap);
1478 break;
1479
1480 case HOLE:
1481 move_apply_hole (trap, victim);
1482 break;
1483
1484 case EXIT:
1485 if (victim->type == PLAYER && EXIT_PATH (trap))
1486 {
1487 /* Basically, don't show exits leading to random maps the
1488 * players output.
1489 */
1490 if (trap->msg && EXIT_PATH (trap) != shstr_random_map_exit)
1491 victim->statusmsg (trap->msg, NDI_NAVY);
1492
1493 trap->play_sound (trap->sound);
1494 victim->enter_exit (trap);
1495 }
1496 break;
1497
1498 case ENCOUNTER:
1499 /* may be some leftovers on this */
1500 break;
1501
1502 case SHOP_MAT:
1503 apply_shop_mat (trap, victim);
1504 break;
1505
1506 /* Drop a certain amount of gold, and have one item identified */
1507 case IDENTIFY_ALTAR:
1508 apply_id_altar (victim, trap, originator);
1509 break;
1510
1511 case SIGN:
1512 if (victim->type != PLAYER && trap->stats.food > 0)
1513 break; /* monsters musn't apply magic_mouths with counters */
1514
1515 apply_sign (victim, trap, 1);
1516 break;
1517
1518 case CONTAINER:
1519 apply_container (victim, trap);
1520 break;
1521
1522 case RUNE:
1523 case TRAP:
1524 if (trap->level && QUERY_FLAG (victim, FLAG_ALIVE))
1525 spring_trap (trap, victim);
1526 break;
1527
1528 default:
1529 LOG (llevDebug, "name %s, arch %s, type %d with fly/walk on/off not "
1530 "handled in move_apply()\n", &trap->name, &trap->arch->archname, trap->type);
1531 break;
1532 }
1533
1534 recursion_depth--;
1535}
1536
1537/**
1538 * Handles reading a regular (ie not containing a spell) book.
1539 */
1540static void
1541apply_book (object *op, object *tmp)
1542{
1543 int lev_diff;
1544 object *skill_ob;
1545
1546 if (QUERY_FLAG (op, FLAG_BLIND) && !QUERY_FLAG (op, FLAG_WIZ))
1547 {
1548 op->failmsg ("You are unable to read while blind!");
1549 return;
1550 }
1551
1552 if (!tmp->msg)
1553 {
1554 op->failmsg (format ("The %s contains nothing but meaningless gibberish. H<There is nothing interesting to read here.>", &tmp->name));
1555 return;
1556 }
1557
1558 /* need a literacy skill to read stuff! */
1559 skill_ob = find_skill_by_name (op, tmp->skill);
1560 if (!skill_ob)
1561 {
1562 op->failmsg (format ("You are unable to decipher the strange symbols. H<You lack the %s skill to read this.>", &tmp->skill));
1563 return;
1564 }
1565
1566 lev_diff = tmp->level - (skill_ob->level + 5);
1567 if (!QUERY_FLAG (op, FLAG_WIZ) && lev_diff > 0)
1568 {
1569 op->failmsg (lev_diff < 2 ? "This book is just barely beyond your comprehension."
1570 : lev_diff < 3 ? "This book is slightly beyond your comprehension."
1571 : lev_diff < 5 ? "This book is beyond your comprehension."
1572 : lev_diff < 8 ? "This book is quite a bit beyond your comprehension."
1573 : lev_diff < 15 ? "This book is way beyond your comprehension."
1574 : "This book is totally beyond your comprehension.");
1575 return;
1576 }
1577
1578 // we currently don't use the message types for anything.
1579 // readable_message_type *msgType = get_readable_message_type (tmp);
1580
1581 tmp->play_sound (tmp->sound ? tmp->sound : sound_find ("apply_book"));
1582
1583 if (player *pl = op->contr)
1584 if (client *ns = pl->ns)
1585 pl->infobox (MSG_CHANNEL ("book"), format ("T<%s>\n\n%s", (char *)long_desc (tmp, op), &tmp->msg));
1586
1587 /* gain xp from reading */
1588 if (!QUERY_FLAG (tmp, FLAG_NO_SKILL_IDENT))
1589 { /* only if not read before */
1590 int exp_gain = calc_skill_exp (op, tmp, skill_ob);
1591
1592 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
1593 {
1594 /*exp_gain *= 2; because they just identified it too */
1595 SET_FLAG (tmp, FLAG_IDENTIFIED);
1596
1597 if (object *pl = tmp->visible_to ())
1598 esrv_update_item (UPD_FLAGS | UPD_NAME, pl, tmp);
1599 }
1600
1601 change_exp (op, exp_gain, skill_ob->skill, 0);
1602 SET_FLAG (tmp, FLAG_NO_SKILL_IDENT); /* so no more xp gained from this book */
1603 }
1604}
1605
1606/**
1607 * op made some mistake with a scroll, this takes care of punishment.
1608 * scroll_failure()- hacked directly from spell_failure
1609 */
1610static void
1611scroll_failure (object *op, int failure, int power)
1612{
1613 if (abs (failure / 4) > power)
1614 power = abs (failure / 4); /* set minimum effect */
1615
1616 if (failure <= -1 && failure > -15)
1617 { /* wonder */
1618 object *tmp;
1619
1620 op->failmsg ("Your spell warps!");
1621 tmp = get_archetype (SPELL_WONDER);
1622 cast_wonder (op, op, 0, tmp);
1623 tmp->destroy ();
1624 }
1625 else if (failure <= -15 && failure > -35)
1626 { /* drain mana */
1627 op->failmsg ("Your mana is drained!");
1628 op->stats.sp -= random_roll (0, power - 1, op, PREFER_LOW);
1629 if (op->stats.sp < 0)
1630 op->stats.sp = 0;
1631 }
1632 else if (settings.spell_failure_effects == TRUE)
1633 {
1634 if (failure <= -35 && failure > -60)
1635 { /* confusion */
1636 op->failmsg ("The magic recoils on you!");
1637 confuse_player (op, op, power);
1638 }
1639 else if (failure <= -60 && failure > -70)
1640 { /* paralysis */
1641 op->failmsg ("The magic recoils and paralyzes you!");
1642 paralyze_player (op, op, power);
1643 }
1644 else if (failure <= -70 && failure > -80)
1645 { /* blind */
1646 op->failmsg ("The magic recoils on you!");
1647 blind_player (op, op, power);
1648 }
1649 else if (failure <= -80)
1650 { /* blast the immediate area */
1651 object *tmp = get_archetype (LOOSE_MANA);
1652 cast_magic_storm (op, tmp, power);
1653 op->failmsg ("You unleash uncontrolled mana!");
1654 tmp->destroy ();
1655 }
1656 }
1657}
1658
1659/**
1660 * Handles the applying of a skill scroll, calling learn_skill straight.
1661 * op is the person learning the skill, tmp is the skill scroll object
1662 */
1663static void
1664apply_skillscroll (object *op, object *tmp)
1665{
1666 switch (learn_skill (op, tmp))
1667 {
1668 case 0:
1669 op->play_sound (sound_find ("generic_fail"));
1670 op->failmsg (format ("You already possess the knowledge held within the %s.", query_name (tmp)));
1671 break;
1672
1673 case 1:
1674 tmp->decrease ();
1675 op->play_sound (sound_find ("skill_learn"));
1676 op->statusmsg (format ("You succeed in learning %s", &tmp->skill));
1677 break;
1678
1679 default:
1680 tmp->decrease ();
1681 op->play_sound (sound_find ("generic_fail"));
1682 op->failmsg (format ("You fail to learn the knowledge of the %s.\n", query_name (tmp)));
1683 break;
1684 }
1685}
1686
1687/**
1688 * Actually makes op learn spell.
1689 * Informs player of what happens.
1690 */
1691void
1692do_learn_spell (object *op, object *spell, int special_prayer)
1693{
1694 object *tmp;
1695
1696 if (op->type != PLAYER)
1697 {
1698 LOG (llevError, "BUG: do_learn_spell(): not a player\n");
1699 return;
1700 }
1701
1702 /* Upgrade special prayers to normal prayers */
1703 if ((tmp = check_spell_known (op, spell->name)) != NULL)
1704 {
1705 if (special_prayer && !QUERY_FLAG (tmp, FLAG_STARTEQUIP))
1706 {
1707 LOG (llevError, "BUG: do_learn_spell(): spell already known, but not marked as startequip\n");
1708 return;
1709 }
1710 return;
1711 }
1712
1713 op->contr->play_sound (sound_find ("learn_spell"));
1714
1715 tmp = spell->clone ();
1716 insert_ob_in_ob (tmp, op);
1717
1718 if (special_prayer)
1719 SET_FLAG (tmp, FLAG_STARTEQUIP);
1720
1721 esrv_add_spells (op->contr, tmp);
1722}
1723
1724/**
1725 * Erases spell from player's inventory.
1726 */
1727void
1728do_forget_spell (object *op, const char *spell)
1729{
1730 object *spob;
1731
1732 if (op->type != PLAYER)
1733 {
1734 LOG (llevError, "BUG: do_forget_spell(): not a player\n");
1735 return;
1736 }
1737 if ((spob = check_spell_known (op, spell)) == NULL)
1738 {
1739 LOG (llevError, "BUG: do_forget_spell(): spell not known\n");
1740 return;
1741 }
1742
1743 op->failmsg (format ("You lose knowledge of %s.", spell));
1744 esrv_remove_spell (op->contr, spob);
1745 spob->destroy ();
1746}
1747
1748/**
1749 * Handles player applying a spellbook.
1750 * Checks whether player has knowledge of required skill, doesn't already know the spell,
1751 * stuff like that. Random learning failure too.
1752 */
1753static void
1754apply_spellbook (object *op, object *tmp)
1755{
1756 object *skop, *spell, *spell_skill;
1757
1758 if (QUERY_FLAG (op, FLAG_BLIND) && !QUERY_FLAG (op, FLAG_WIZ))
1759 {
1760 op->failmsg ("You are unable to read while blind.");
1761 return;
1762 }
1763
1764 /* artifact_spellbooks have 'slaying' field point to a spell name,
1765 * instead of having their spell stored in stats.sp. These are
1766 * legacy spellbooks
1767 */
1768 if (tmp->slaying)
1769 {
1770 spell = find_archetype_by_object_name (tmp->slaying)->instance ();
1771
1772 if (!spell)
1773 {
1774 op->failmsg (format ("The book's formula for %s is incomplete.", &tmp->slaying));
1775 return;
1776 }
1777 else
1778 insert_ob_in_ob (spell, tmp);
1779
1780 tmp->slaying = 0;
1781 }
1782
1783 skop = find_skill_by_name (op, tmp->skill);
1784
1785 /* need a literacy skill to learn spells. Also, having a literacy level
1786 * lower than the spell will make learning the spell more difficult */
1787 if (!skop)
1788 {
1789 op->failmsg (format ("You can't read! Your attempt fails. H<You lack the %s skill.>", &tmp->skill));
1790 return;
1791 }
1792
1793 spell = tmp->inv;
1794
1795 if (!spell)
1796 {
1797 LOG (llevError, "apply_spellbook: Book %s has no spell in it!\n", &tmp->name);
1798 op->failmsg ("The spellbook symbols make no sense. This is a bug, please report!");
1799 return;
1800 }
1801
1802 int learn_level = sqrtf (spell->level) * 1.5f;
1803 if (skop->level < learn_level)
1804 {
1805 op->failmsg (format ("You are unable to decipher the strange symbols. H<Your %s level is too low, it must be at least %d.>",
1806 &tmp->skill, learn_level));
1807 return;
1808 }
1809
1810 op->statusmsg (format ("The spellbook contains the %s level spell %s.", get_levelnumber (spell->level), &spell->name));
1811
1812 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
1813 identify (tmp);
1814
1815 /* I removed the check for special_prayer_mark here - it didn't make
1816 * a lot of sense - special prayers are not found in spellbooks, and
1817 * if the player doesn't know the spell, doesn't make a lot of sense that
1818 * they would have a special prayer mark.
1819 */
1820 if (check_spell_known (op, spell->name))
1821 {
1822 op->statusmsg ("You already know that spell. H<It makes no sense to learn spells twice, and would only waste the spellbook.>\n");
1823 return;
1824 }
1825
1826 if (spell->skill)
1827 {
1828 spell_skill = find_skill_by_name (op, spell->skill);
1829
1830 if (!spell_skill)
1831 {
1832 op->failmsg (format ("You lack the %s skill to use this spell.", &spell->skill));
1833 return;
1834 }
1835
1836 if (spell_skill->level < spell->level)
1837 {
1838 op->failmsg (format ("You need to be level %d in %s to learn this spell.", spell->level, &spell->skill));
1839 return;
1840 }
1841 }
1842
1843 /* Logic as follows
1844 *
1845 * 1- MU spells use Int to learn, Cleric spells use Wisdom
1846 *
1847 * 2- The learner's skill level in literacy adjusts the chance to learn
1848 * a spell.
1849 *
1850 * 3 -Automatically fail to learn if you read while confused
1851 *
1852 * Overall, chances are the same but a player will find having a high
1853 * literacy rate very useful! -b.t.
1854 */
1855 if (QUERY_FLAG (op, FLAG_CONFUSED))
1856 {
1857 op->failmsg ("In your confused state you flub the wording of the text!");
1858 scroll_failure (op, 0 - random_roll (0, spell->level, op, PREFER_LOW), max (spell->stats.sp, spell->stats.grace));
1859 }
1860 else if (QUERY_FLAG (tmp, FLAG_STARTEQUIP) ||
1861 (random_roll (0, 100, op, PREFER_LOW) - (5 * skop->level)) < learn_spell[spell->stats.grace ? op->stats.Wis : op->stats.Int])
1862 {
1863 op->statusmsg ("You succeed in learning the spell!", NDI_GREEN);
1864 do_learn_spell (op, spell, 0);
1865
1866 /* xp gain to literacy for spell learning */
1867 if (!QUERY_FLAG (tmp, FLAG_STARTEQUIP))
1868 change_exp (op, calc_skill_exp (op, tmp, skop), skop->skill, 0);
1869 }
1870 else
1871 {
1872 op->contr->play_sound (sound_find ("fumble_spell"));
1873 op->failmsg ("You fail to learn the spell. H<Wis (priests) or Int (wizards) governs the chance of learning a prayer or spell.>\n");
1874 }
1875
1876 tmp->decrease ();
1877}
1878
1879/**
1880 * Handles applying a spell scroll.
1881 */
1882void
1883apply_scroll (object *op, object *tmp, int dir)
1884{
1885 object *skop;
1886
1887 if (QUERY_FLAG (op, FLAG_BLIND) && !QUERY_FLAG (op, FLAG_WIZ))
1888 {
1889 op->failmsg ("You are unable to read while blind.");
1890 return;
1891 }
1892
1893 if (!tmp->inv || tmp->inv->type != SPELL)
1894 {
1895 op->failmsg ("The scroll just doesn't make sense! H<...and never will make sense.>");
1896 return;
1897 }
1898
1899 if (op->type == PLAYER)
1900 {
1901 /* players need a literacy skill to read stuff! */
1902 int exp_gain = 0;
1903
1904 /* hard code literacy - tmp->skill points to where the exp
1905 * should go for anything killed by the spell.
1906 */
1907 skop = find_skill_by_name (op, skill_names[SK_LITERACY]);
1908
1909 if (!skop)
1910 {
1911 op->failmsg (format ("You are unable to decipher the strange symbols. H<You lack the %s skill.>", &skill_names[SK_LITERACY]));
1912 return;
1913 }
1914
1915 if ((exp_gain = calc_skill_exp (op, tmp, skop)))
1916 change_exp (op, exp_gain, skop->skill, 0);
1917 }
1918
1919 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
1920 identify (tmp);
1921
1922 op->statusmsg (format ("The scroll of %s turns to dust.", &tmp->inv->name));
1923
1924 cast_spell (op, tmp, dir, tmp->inv, NULL);
1925 tmp->decrease ();
1926}
1927
1928/**
1929 * Applies a treasure object - by default, chest. op
1930 * is the person doing the applying, tmp is the treasure
1931 * chest.
1932 */
1933static void
1934apply_treasure (object *op, object *tmp)
1935{
1936 /* Nice side effect of this treasure creation method is that the treasure
1937 * for the chest is done when the chest is created, and put into the chest
1938 * inventory. So that when the chest burns up, the items still exist. Also
1939 * prevents people from moving chests to more difficult maps to get better
1940 * treasure
1941 */
1942 object *treas = tmp->inv;
1943
1944 if (!treas)
1945 {
1946 op->statusmsg ("The chest was empty.");
1947 tmp->decrease ();
1948 return;
1949 }
1950
1951 while (tmp->inv)
1952 {
1953 treas = tmp->inv;
1954 treas->remove ();
1955
1956 treas->x = op->x;
1957 treas->y = op->y;
1958 treas = insert_ob_in_map (treas, op->map, op, INS_BELOW_ORIGINATOR);
1959
1960 if (treas && (treas->type == RUNE || treas->type == TRAP) && treas->level && QUERY_FLAG (op, FLAG_ALIVE))
1961 spring_trap (treas, op);
1962
1963 /* If either player or container was destroyed, no need to do
1964 * further processing. I think this should be enclused with
1965 * spring trap above, as I don't think there is otherwise
1966 * any way for the treasure chest or player to get killed.
1967 */
1968 if (op->destroyed () || tmp->destroyed ())
1969 break;
1970 }
1971
1972 if (!tmp->destroyed () && !tmp->inv)
1973 tmp->decrease (true);
1974}
1975
1976/**
1977 * A dragon is eating some flesh. If the flesh contains resistances,
1978 * there is a chance for the dragon's skin to get improved.
1979 *
1980 * attributes:
1981 * object *op the object (dragon player) eating the flesh
1982 * object *meal the flesh item, getting chewed in dragon's mouth
1983 * return:
1984 * int 1 if eating successful, 0 if it doesn't work
1985 */
1986static int
1987dragon_eat_flesh (object *op, object *meal)
1988{
1989 object *skin = NULL; /* pointer to dragon skin force */
1990 object *abil = NULL; /* pointer to dragon ability force */
1991 object *tmp = NULL; /* tmp. object */
1992
1993 double chance; /* improvement-chance of one resistance type */
1994 double totalchance = 1; /* total chance of gaining one resistance */
1995 double bonus = 0; /* level bonus (improvement is easier at lowlevel) */
1996 double mbonus = 0; /* monster bonus */
1997 int atnr_winner[NROFATTACKS]; /* winning candidates for resistance improvement */
1998 int winners = 0; /* number of winners */
1999 int i; /* index */
2000
2001 /* let's make sure and doublecheck the parameters */
2002 if (meal->type != FLESH || !op->is_dragon ())
2003 return 0;
2004
2005 /* now grab the 'dragon_skin'- and 'dragon_ability'-forces
2006 from the player's inventory */
2007 for (tmp = op->inv; tmp; tmp = tmp->below)
2008 if (tmp->type == FORCE)
2009 if (tmp->arch->archname == shstr_dragon_skin_force)
2010 skin = tmp;
2011 else if (tmp->arch->archname == shstr_dragon_ability_force)
2012 abil = tmp;
2013
2014 /* if either skin or ability are missing, this is an old player
2015 which is not to be considered a dragon -> bail out */
2016 if (skin == NULL || abil == NULL)
2017 return 0;
2018
2019 /* now start by filling stomache and health, according to food-value */
2020 if ((MAX_FOOD - op->stats.food) < meal->stats.food)
2021 op->stats.hp += (MAX_FOOD - op->stats.food) / 50;
2022 else
2023 op->stats.hp += meal->stats.food / 50;
2024
2025 min_it (op->stats.hp, op->stats.maxhp);
2026 op->stats.food = min (MAX_FOOD, op->stats.food + meal->stats.food);
2027
2028 /*LOG(llevDebug, "-> player: %d, flesh: %d\n", op->level, meal->level); */
2029
2030 /* on to the interesting part: chances for adding resistance */
2031 for (i = 0; i < NROFATTACKS; i++)
2032 {
2033 if (meal->resist[i] > 0 && atnr_is_dragon_enabled (i))
2034 {
2035 /* got positive resistance, now calculate improvement chance (0-100) */
2036
2037 /* this bonus makes resistance increase easier at lower levels */
2038 bonus = (settings.max_level - op->level) * 30. / ((double) settings.max_level);
2039 if (i == abil->stats.exp)
2040 bonus += 5; /* additional bonus for resistance of ability-focus */
2041
2042 /* monster bonus increases with level, because high-level
2043 flesh is too rare */
2044 mbonus = op->level * 20. / ((double) settings.max_level);
2045
2046 chance = (((double)min (op->level + bonus, meal->level + bonus + mbonus)) * 100. /
2047 ((double)settings.max_level)) - skin->resist[i];
2048
2049 if (chance >= 0.)
2050 chance += 1.;
2051 else
2052 chance = (chance < -12) ? 0. : 1. / pow (2., -chance);
2053
2054 /* chance is proportional to amount of resistance (max. 50) */
2055 chance *= ((double)(min (meal->resist[i], 50))) / 50.;
2056
2057 /* doubled chance for resistance of ability-focus */
2058 if (i == abil->stats.exp)
2059 chance = min (100., chance * 2.);
2060
2061 /* now make the throw and save all winners (Don't insert luck bonus here!) */
2062 if (rndm (10000) < (unsigned int)(chance * 100))
2063 {
2064 atnr_winner[winners] = i;
2065 winners++;
2066 }
2067
2068 if (chance >= 0.01)
2069 totalchance *= 1 - chance / 100;
2070
2071 /*LOG(llevDebug, " %s: bonus %.1f, chance %.1f\n", attacks[i], bonus, chance); */
2072 }
2073 }
2074
2075 /* inverse totalchance as until now we have the failure-chance */
2076 totalchance = 100 - totalchance * 100;
2077
2078 /* print message according to totalchance */
2079 const char *buf;
2080 if (totalchance > 50.)
2081 buf = format ("Hmm! The %s tasted delicious!", &meal->name);
2082 else if (totalchance > 10.)
2083 buf = format ("The %s tasted very good.", &meal->name);
2084 else if (totalchance > 1.)
2085 buf = format ("The %s tasted good.", &meal->name);
2086 else if (totalchance > 0.1)
2087 buf = format ("The %s tasted bland.", &meal->name);
2088 else if (totalchance >= 0.01)
2089 buf = format ("The %s had a boring taste.", &meal->name);
2090 else if (meal->last_eat > 0 && atnr_is_dragon_enabled (meal->last_eat))
2091 buf = format ("The %s tasted strange.", &meal->name);
2092 else
2093 buf = format ("The %s had no taste.", &meal->name);
2094
2095 op->statusmsg (buf);
2096
2097 /* now choose a winner if we have any */
2098 i = -1;
2099 if (winners > 0)
2100 i = atnr_winner [rndm (winners)];
2101
2102 if (i >= 0 && i < NROFATTACKS && skin->resist[i] < 95)
2103 {
2104 /* resistance increased! */
2105 skin->resist[i]++;
2106 op->update_stats ();
2107
2108 op->statusmsg (format ("Your skin is now more resistant to %s!", change_resist_msg[i]));
2109 }
2110
2111 /* if this flesh contains a new ability focus, we mark it
2112 into the ability_force and it will take effect on next level */
2113 if (meal->last_eat > 0 && atnr_is_dragon_enabled (meal->last_eat) && meal->last_eat != abil->last_eat)
2114 {
2115 abil->last_eat = meal->last_eat; /* write: last_eat <new attnr focus> */
2116
2117 if (meal->last_eat != abil->stats.exp)
2118 op->statusmsg (format (
2119 "Your metabolism prepares to focus on %s!\n"
2120 "The change will happen at level %d.",
2121 change_resist_msg[meal->last_eat],
2122 abil->level + 1
2123 ));
2124 else
2125 {
2126 op->statusmsg (format ("Your metabolism will continue to focus on %s.", change_resist_msg[meal->last_eat]));
2127 abil->last_eat = 0;
2128 }
2129 }
2130
2131 return 1;
2132}
2133
2134/**
2135 * op eats food.
2136 * If player, takes care of messages and dragon special food.
2137 */
2138static void
2139apply_food (object *op, object *tmp)
2140{
2141 int capacity_remaining;
2142
2143 if (op->type != PLAYER)
2144 op->stats.hp = op->stats.maxhp;
2145 else
2146 {
2147 /* check if this is a dragon (player), eating some flesh */
2148 if (tmp->type == FLESH && op->is_dragon () && dragon_eat_flesh (op, tmp))
2149 ;
2150 else
2151 {
2152 /* usual case - no dragon meal: */
2153 if (op->stats.food + tmp->stats.food > MAX_FOOD)
2154 {
2155 if (tmp->type == FOOD || tmp->type == FLESH)
2156 op->failmsg ("You feel full, but what a waste of food!");
2157 else
2158 op->statusmsg ("Most of the drink goes down your face not your throat!");
2159 }
2160
2161 tmp->play_sound (
2162 tmp->sound
2163 ? tmp->sound
2164 : tmp->type == DRINK
2165 ? sound_find ("eat_drink")
2166 : sound_find ("eat_food")
2167 );
2168
2169 if (!QUERY_FLAG (tmp, FLAG_CURSED))
2170 {
2171 const char *buf;
2172
2173 if (!op->is_dragon ())
2174 {
2175 /* eating message for normal players */
2176 if (tmp->type == DRINK)
2177 buf = format ("Ahhh...that %s tasted good.", &tmp->name);
2178 else
2179 buf = format ("The %s tasted %s", &tmp->name, tmp->type == FLESH ? "terrible!" : "good.");
2180 }
2181 else
2182 /* eating message for dragon players */
2183 buf = format ("The %s tasted terrible!", &tmp->name);
2184
2185 op->statusmsg (buf);
2186
2187 capacity_remaining = MAX_FOOD - op->stats.food;
2188 op->stats.food += tmp->stats.food;
2189 if (capacity_remaining < tmp->stats.food)
2190 op->stats.hp += capacity_remaining / 50;
2191 else
2192 op->stats.hp += tmp->stats.food / 50;
2193
2194 min_it (op->stats.hp, op->stats.maxhp);
2195 min_it (op->stats.food, MAX_FOOD);
2196 }
2197
2198 /* special food hack -b.t. */
2199 if (tmp->title || QUERY_FLAG (tmp, FLAG_CURSED))
2200 eat_special_food (op, tmp);
2201 }
2202 }
2203
2204 handle_apply_yield (tmp);
2205 tmp->decrease ();
2206}
2207
2208/**
2209 * Handles applying an improve armor scroll.
2210 * Does some sanity checks, then calls improve_armour.
2211 */
2212static void
2213apply_armour_improver (object *op, object *tmp)
2214{
2215 object *armor;
2216
2217 if (!QUERY_FLAG (op, FLAG_WIZCAST) && (get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_NO_MAGIC))
2218 {
2219 op->failmsg ("Something blocks the magic of the scroll. H<This area prevents magic effects.>");
2220 return;
2221 }
2222
2223 armor = find_marked_object (op);
2224
2225 if (!armor)
2226 {
2227 op->failmsg ("You need to mark an armor object. Use the right mouse button popup or the mark command to do this.");
2228 return;
2229 }
2230
2231 if (armor->type != ARMOUR
2232 && armor->type != CLOAK
2233 && armor->type != BOOTS && armor->type != GLOVES && armor->type != BRACERS && armor->type != SHIELD && armor->type != HELMET)
2234 {
2235 op->failmsg ("Your marked item is not armour!\n");
2236 return;
2237 }
2238
2239 op->statusmsg ("Applying armour enchantment.");
2240 improve_armour (op, tmp, armor);
2241}
2242
2243void
2244apply_poison (object *op, object *tmp)
2245{
2246 // need to do it now when it is still on the map
2247 handle_apply_yield (tmp);
2248
2249 object *poison = tmp->split (1);
2250
2251 if (op->type == PLAYER)
2252 {
2253 op->contr->play_sound (sound_find ("drink_poison"));
2254 op->failmsg ("Yech! That tasted poisonous!");
2255 op->contr->killer = poison;
2256 }
2257
2258 if (poison->stats.hp > 0)
2259 {
2260 LOG (llevDebug, "Trying to poison player/monster for %d hp\n", poison->stats.hp);
2261 hit_player (op, poison->stats.hp, tmp, AT_POISON, 1);
2262 }
2263
2264 op->stats.food -= op->stats.food / 4;
2265 poison->destroy ();
2266}
2267
2268/**
2269 * This function will try to apply a lighter and in case no lighter
2270 * is specified it will try to find a lighter in the players inventory,
2271 * and inform him about this requirement.
2272 *
2273 * who - the player
2274 * op - the item we want to light
2275 * lighter - the lighter or 0 if a lighter has yet to be found
2276 */
2277static object *
2278auto_apply_lighter (object *who, object *op, object *lighter)
2279{
2280 if (lighter == 0)
2281 {
2282 for (object *tmp = who->inv; tmp; tmp = tmp->below)
2283 {
2284 if (tmp->type == LIGHTER)
2285 {
2286 lighter = tmp;
2287 break;
2288 }
2289 }
2290
2291 if (!lighter)
2292 {
2293 who->failmsg (format (
2294 "You can't light up the %s with your bare hands! "
2295 "H<You need a lighter in your inventory, for example a flint and steel.>",
2296 &op->name));
2297 return 0;
2298 }
2299 }
2300
2301 // last_eat == 0 means the lighter is not being used up!
2302 if (lighter->last_eat && lighter->stats.food)
2303 {
2304 /* lighter gets used up */
2305 lighter = lighter->split ();
2306 lighter->stats.food--;
2307 who->insert (lighter);
2308 }
2309 else if (lighter->last_eat)
2310 {
2311 /* no charges left in lighter */
2312 who->failmsg (format (
2313 "You attempt to light the %s with a used up %s.",
2314 &op->name, &lighter->name));
2315 return 0;
2316 }
2317
2318 return lighter;
2319}
2320
2321/**
2322 * Designed primarily to light torches/lanterns/etc.
2323 * Also burns up burnable material too. First object in the inventory is
2324 * the selected object to "burn". -b.t.
2325 */
2326static void
2327apply_lighter (object *who, object *lighter)
2328{
2329 object *item;
2330 int is_player_env = 0;
2331
2332 item = find_marked_object (who);
2333 if (item)
2334 {
2335 if (!auto_apply_lighter (who, item, lighter))
2336 return;
2337
2338 /* Perhaps we should split what we are trying to light on fire?
2339 * I can't see many times when you would want to light multiple
2340 * objects at once.
2341 */
2342
2343 save_throw_object (item, AT_FIRE, who);
2344
2345 if (item->destroyed ()
2346 || ((item->type == LAMP || item->type == TORCH)
2347 && item->glow_radius > 0))
2348 who->statusmsg (format (
2349 "You light the %s with the %s.",
2350 &item->name, &lighter->name));
2351 else
2352 who->failmsg (format (
2353 "You attempt to light the %s with the %s and fail.",
2354 &item->name, &lighter->name));
2355 }
2356 else
2357 who->failmsg ("You need to mark a lightable object.");
2358}
2359
2360/**
2361 * This function generates a cursed effect for cursed lamps and torches.
2362 */
2363static void
2364player_apply_lamp_cursed_effect (object *who, object *op)
2365{
2366 if (op->level)
2367 {
2368 who->failmsg (format (
2369 "The %s was cursed, it explodes in a big fireball!",
2370 &op->name));
2371 create_exploding_ball_at (who, op->level);
2372 }
2373 else
2374 {
2375 who->failmsg (format (
2376 "The %s was cursed, it crumbles to dust, at least it didn't explode.!",
2377 &op->name));
2378 }
2379
2380 op->destroy ();
2381}
2382
2383/**
2384 * Apply for players and lamps
2385 *
2386 * who - the player
2387 * op - the lamp
2388 */
2389static void
2390player_apply_lamp (object *who, object *op)
2391{
2392 bool switch_on = op->glow_radius ? false : true;
2393
2394 if (switch_on)
2395 {
2396 object *lighter = 0;
2397
2398 if (op->flag [FLAG_IS_LIGHTABLE]
2399 && !(lighter = auto_apply_lighter (who, op, 0)))
2400 return;
2401
2402 if (op->stats.food < 1)
2403 {
2404 if (op->type == LAMP)
2405 who->failmsg (format (
2406 "The %s is out of fuel! "
2407 "H<Lamps and similar items need fuel. They cannot be refilled.>",
2408 &op->name));
2409 else
2410 who->failmsg (format (
2411 "The %s is burnt out! "
2412 "H<Torches and similar items burn out and become worthless.>",
2413 &op->name));
2414 return;
2415 }
2416
2417 if (op->flag [FLAG_CURSED])
2418 {
2419 player_apply_lamp_cursed_effect (who, op);
2420 return;
2421 }
2422
2423 if (lighter)
2424 who->statusmsg (format (
2425 "You light up the %s with the %s.", &op->name, &lighter->name));
2426 else
2427 who->statusmsg (format ("You light up the %s.", &op->name));
2428 }
2429 else
2430 {
2431 if (op->flag [FLAG_CURSED])
2432 {
2433 player_apply_lamp_cursed_effect (who, op);
2434 return;
2435 }
2436
2437 if (op->type == TORCH)
2438 {
2439 if (!op->flag [FLAG_IS_LIGHTABLE])
2440 {
2441 who->statusmsg (format (
2442 "You put out the %s. "
2443 "H<The %s can't be used anymore, as it can't be lighted up again.>",
2444 &op->name, &op->name));
2445 }
2446 else
2447 who->statusmsg (format (
2448 "You put out the %s."
2449 "H<Torches wear out if you put them out.>",
2450 &op->name));
2451 }
2452 else
2453 who->statusmsg (format ("You turn off the %s.", &op->name));
2454 }
2455
2456 apply_lamp (op, switch_on);
2457}
2458
2459void get_animation_from_arch (object *op, arch_ptr a)
2460{
2461 op->animation_id = a->animation_id;
2462 op->flag [FLAG_IS_TURNABLE] = a->flag [FLAG_IS_TURNABLE];
2463 op->flag [FLAG_ANIMATE] = a->flag [FLAG_ANIMATE];
2464 op->anim_speed = a->anim_speed;
2465 op->last_anim = 0;
2466 op->state = 0;
2467 op->face = a->face;
2468
2469 if (NUM_ANIMATIONS(op) > 1)
2470 {
2471 SET_ANIMATION(op, 0);
2472 animate_object (op, op->direction);
2473 }
2474 else
2475 update_object (op, UP_OBJ_FACE);
2476}
2477
2478/**
2479 * Apply for LAMPs and TORCHes.
2480 *
2481 * op - the lamp
2482 * switch_on - a flag which says whether the lamp should be switched on or off
2483 */
2484void apply_lamp (object *op, bool switch_on)
2485{
2486 op->set_glow_radius (switch_on ? op->range : 0);
2487 op->set_speed (switch_on ? op->arch->speed : 0);
2488
2489 // torches wear out if you put them out
2490 if (op->type == TORCH && !switch_on)
2491 {
2492 if (op->flag [FLAG_IS_LIGHTABLE])
2493 {
2494 op->stats.food -= (double) op->arch->stats.food / 15;
2495 if (op->stats.food < 0)
2496 op->stats.food = 0;
2497 }
2498 else
2499 op->stats.food = 0;
2500 }
2501
2502 // lamps and torched get worthless when used up
2503 if (op->stats.food <= 0)
2504 op->value = 0;
2505
2506 // FIXME: This is a hack to make the more sane torches and lamps
2507 // still animated ;-/
2508 if (op->other_arch)
2509 get_animation_from_arch (op, switch_on ? op->other_arch : op->arch);
2510
2511 if (object *pl = op->visible_to ())
2512 esrv_update_item (UPD_ANIM | UPD_FACE | UPD_NAME, pl, op);
2513}
2514
2515/**
2516 * This handles items of type 'transformer'.
2517 * Basically those items, used with a marked item, transform both items into something
2518 * else.
2519 * "Transformer" item has food decreased by 1, removed if 0 (0 at start means illimited)..
2520 * Change information is contained in the 'slaying' field of the marked item.
2521 * The format is as follow: transformer:[number ]yield[;transformer:...].
2522 * This way an item can be transformed in many things, and/or many objects.
2523 * The 'slaying' field for transformer is used as verb for the action.
2524 */
2525static void
2526apply_item_transformer (object *pl, object *transformer)
2527{
2528 object *marked;
2529 object *new_item;
2530 const char *find;
2531 char *separator;
2532 int yield;
2533 char got[MAX_BUF];
2534 int len;
2535
2536 if (!pl || !transformer)
2537 return;
2538
2539 marked = find_marked_object (pl);
2540
2541 if (!marked)
2542 {
2543 pl->failmsg (format ("Use the %s with what item?", query_name (transformer)));
2544 return;
2545 }
2546
2547 if (!marked->slaying)
2548 {
2549 pl->failmsg (format ("You can't use the %s with your %s!", query_name (transformer), query_name (marked)));
2550 return;
2551 }
2552
2553 /* check whether they are compatible or not */
2554 find = strstr (&marked->slaying, transformer->arch->archname);
2555 if (!find || (*(find + strlen (transformer->arch->archname)) != ':'))
2556 {
2557 pl->failmsg (format ("You can't use the %s with your %s!", query_name (transformer), query_name (marked)));
2558 return;
2559 }
2560
2561 find += strlen (transformer->arch->archname) + 1;
2562 /* Item can be used, now find how many and what it yields */
2563 if (isdigit (*(find)))
2564 {
2565 yield = atoi (find);
2566 if (yield < 1)
2567 {
2568 LOG (llevDebug, "apply_item_transformer: item %s has slaying-yield %d.", query_base_name (marked, 0), yield);
2569 yield = 1;
2570 }
2571 }
2572 else
2573 yield = 1;
2574
2575 while (isdigit (*find))
2576 find++;
2577
2578 while (*find == ' ')
2579 find++;
2580
2581 memset (got, 0, MAX_BUF);
2582
2583 if ((separator = (char *) strchr (find, ';')))
2584 len = separator - find;
2585 else
2586 len = strlen (find);
2587
2588 min_it (len, MAX_BUF - 1);
2589
2590 strcpy (got, find);
2591 got[len] = '\0';
2592
2593 /* Now create new item, remove used ones when required. */
2594 new_item = get_archetype (got);
2595 if (!new_item)
2596 {
2597 pl->failmsg (format ("This %s is strange, better to not use it.", query_base_name (marked, 0)));
2598 return;
2599 }
2600
2601 new_item->nrof = yield;
2602
2603 pl->statusmsg (format ("You %s the %s.", &transformer->slaying, query_base_name (marked, 0)));
2604
2605 pl->insert (new_item);
2606 /* Eat up one item */
2607 marked->decrease ();
2608
2609 /* Eat one transformer if needed */
2610 if (transformer->stats.food)
2611 if (--transformer->stats.food == 0)
2612 transformer->decrease ();
2613}
2614
2615/**
2616 * Main apply handler.
2617 *
2618 * Checks for unpaid items before applying.
2619 *
2620 * Return value:
2621 * 0: player or monster can't apply objects of that type
2622 * 1: has been applied, or there was an error applying the object
2623 * 2: objects of that type can't be applied if not in inventory
2624 *
2625 * who is the object that is causing object to be applied, op is the object
2626 * being applied.
2627 *
2628 * aflag is special (always apply/unapply) flags. Nothing is done with
2629 * them in this function - they are passed to apply_special
2630 */
2631static int
2632manual_apply (object *who, object *op, int aflag)
2633{
2634 op = op->head_ ();
2635
2636 if (QUERY_FLAG (op, FLAG_UNPAID) && !QUERY_FLAG (op, FLAG_APPLIED))
2637 {
2638 if (who->type == PLAYER)
2639 {
2640 examine (who, op);
2641 //who->failmsg ("You should pay for it first! H<You cannot use items marked as unpaid.>");//TODO remove
2642 return 1;
2643 }
2644 else
2645 return 0; /* monsters just skip unpaid items */
2646 }
2647
2648 if (INVOKE_OBJECT (APPLY, op, ARG_OBJECT (who)))
2649 return RESULT_INT (0);
2650
2651 switch (op->type)
2652 {
2653 case T_HANDLE:
2654 who->play_sound (sound_find ("turn_handle"));
2655 who->statusmsg ("You turn the handle.");
2656 op->value = op->value ? 0 : 1;
2657 SET_ANIMATION (op, op->value);
2658 update_object (op, UP_OBJ_FACE);
2659 push_button (op, who);
2660 return 1;
2661
2662 case TRIGGER:
2663 if (check_trigger (op, who, who))
2664 {
2665 who->statusmsg ("You turn the handle.");
2666 who->play_sound (sound_find ("turn_handle"));
2667 }
2668 else
2669 who->failmsg ("The handle doesn't move.");
2670
2671 return 1;
2672
2673 case EXIT:
2674 if (who->type != PLAYER)
2675 return 0;
2676
2677 if (!EXIT_PATH (op))
2678 who->failmsg (format ("The %s is closed. H<And will stay closed, until somebody fires up the map editor and adds it.>", query_name (op)));
2679 else
2680 {
2681 /* Don't display messages for random maps. */
2682 if (op->msg && EXIT_PATH (op) != shstr_random_map_exit)
2683 who->statusmsg (op->msg, NDI_NAVY);
2684
2685 who->enter_exit (op);
2686 }
2687
2688 return 1;
2689
2690 case INSCRIBABLE:
2691 who->statusmsg (op->msg);
2692 // maybe show a spell menu to chose from or something like that
2693 return 1;
2694
2695 case SIGN:
2696 apply_sign (who, op, 0);
2697 return 1;
2698
2699 case BOOK:
2700 if (who->type == PLAYER)
2701 {
2702 apply_book (who, op);
2703 return 1;
2704 }
2705 else
2706 return 0;
2707
2708 case SKILLSCROLL:
2709 if (who->type == PLAYER)
2710 {
2711 apply_skillscroll (who, op);
2712 return 1;
2713 }
2714 else
2715 return 0;
2716
2717 case SPELLBOOK:
2718 if (who->type == PLAYER)
2719 {
2720 apply_spellbook (who, op);
2721 return 1;
2722 }
2723 else
2724 return 0;
2725
2726 case SCROLL:
2727 apply_scroll (who, op, 0);
2728 return 1;
2729
2730 case POTION:
2731 apply_potion (who, op);
2732 return 1;
2733
2734 /* Eneq(@csd.uu.se): Handle apply on containers. */
2735 //TODO: remove, as it is unsed?
2736 case CLOSE_CON:
2737 apply_container (who, op->env);
2738 return 1;
2739
2740 case CONTAINER:
2741 apply_container (who, op);
2742 return 1;
2743
2744 case TREASURE:
2745 if (who->type == PLAYER)
2746 {
2747 apply_treasure (who, op);
2748 return 1;
2749 }
2750 else
2751 return 0;
2752
2753 case LAMP:
2754 case TORCH:
2755 player_apply_lamp (who, op);
2756 return 1;
2757
2758 case WEAPON:
2759 case ARMOUR:
2760 case BOOTS:
2761 case GLOVES:
2762 case AMULET:
2763 case GIRDLE:
2764 case BRACERS:
2765 case SHIELD:
2766 case HELMET:
2767 case RING:
2768 case CLOAK:
2769 case WAND:
2770 case ROD:
2771 case HORN:
2772 case SKILL:
2773 case SPELL:
2774 case BOW:
2775 case RANGED:
2776 case BUILDER:
2777 case SKILL_TOOL:
2778 if (op->env != who)
2779 who->failmsg (format ("You must get it first! H<You can only apply the %s if it is in your inventory.>\n", query_name (op)));
2780 else
2781 apply_special (who, op, aflag);
2782
2783 return 1;
2784
2785 case DRINK:
2786 case FOOD:
2787 case FLESH:
2788 apply_food (who, op);
2789 return 1;
2790
2791 case POISON:
2792 apply_poison (who, op);
2793 return 1;
2794
2795 case SAVEBED:
2796 return 1;
2797
2798 case ARMOUR_IMPROVER:
2799 if (who->type == PLAYER)
2800 {
2801 apply_armour_improver (who, op);
2802 return 1;
2803 }
2804 else
2805 return 0;
2806
2807 case WEAPON_IMPROVER:
2808 check_improve_weapon (who, op);
2809 return 1;
2810
2811 case CLOCK:
2812 if (who->type == PLAYER)
2813 {
2814 char buf[MAX_BUF];
2815 timeofday_t tod;
2816
2817 get_tod (&tod);
2818 who->play_sound (sound_find ("sound_clock"));
2819 who->statusmsg (format (
2820 "It is %d minute%s past %d o'clock %s",
2821 tod.minute + 1, ((tod.minute + 1 < 2) ? "" : "s"),
2822 ((tod.hour % 14 == 0) ? 14 : ((tod.hour) % 14)), ((tod.hour >= 14) ? "pm" : "am")
2823 ));
2824 return 1;
2825 }
2826 else
2827 return 0;
2828
2829 case MENU:
2830 if (who->type == PLAYER)
2831 {
2832 shop_listing (op, who);
2833 return 1;
2834 }
2835 else
2836 return 0;
2837
2838 case POWER_CRYSTAL:
2839 apply_power_crystal (who, op); /* see egoitem.c */
2840 return 1;
2841
2842 case LIGHTER: /* for lighting torches/lanterns/etc */
2843 if (who->type == PLAYER)
2844 {
2845 apply_lighter (who, op);
2846 return 1;
2847 }
2848 else
2849 return 0;
2850
2851 case ITEM_TRANSFORMER:
2852 apply_item_transformer (who, op);
2853 return 1;
2854
2855 default:
2856 who->statusmsg (format ("I don't know how to apply the %s.", query_name (op)));
2857 return 0;
2858 }
2859}
2860
2861/*
2862 * Same return value as apply() function.
2863 */
2864bool
2865player_apply (object *pl, object *op, int aflag)
2866{
2867 if (!op->env && (pl->move_type & MOVE_FLYING))
2868 {
2869 /* player is flying and applying object not in inventory */
2870 if (!QUERY_FLAG (pl, FLAG_WIZ) && !(op->move_type & MOVE_FLYING))
2871 {
2872 pl->failmsg ("But you are floating high above the ground! "
2873 "H<You have to stop levitating first, if you can, either by using your levitation skill, "
2874 "or waiting till the levitation effect wears off.>");
2875 return 0;
2876 }
2877 }
2878
2879 pl->contr->last_used = op;
2880
2881 return pl->apply (op, aflag);
2882}
2883
2884/**
2885 * player_apply_below attempts to apply the object 'below' the player.
2886 * If the player has an open container, we use that for below, otherwise
2887 * we use the ground.
2888 */
2889void
2890player_apply_below (object *pl)
2891{
2892 int floors = 0;
2893
2894 /* If using a container, set the starting item to be the top
2895 * item in the container. Otherwise, use the map.
2896 * This is perhaps more complicated. However, I want to make sure that
2897 * we don't use a corrupt pointer for the next object, so we get the
2898 * next object in the stack before applying. This is can only be a
2899 * problem if player_apply() has a bug in that it uses the object but does
2900 * not return a proper value.
2901 */
2902 //TODO: currently looks only at the topmost objetc, no longer at multiple floors
2903 // and also not on move_on floors. what was this for, anyways?
2904 for (object *next, *tmp = pl->container_ () ? pl->container_ ()->inv : pl->below; tmp; tmp = next)
2905 {
2906 next = tmp->below;
2907
2908 /* If it is visible, player can apply it.
2909 */
2910 if (!tmp->invisible)
2911 if (player_apply (pl, tmp, 0))
2912 break;
2913
2914 break;
2915 }
2916}
2917
2918/**
2919 * Unapplies specified item. 1024 * Unapplies specified item.
2920 * No check done on cursed/damned. 1025 * No check done on cursed/damned.
2921 * Break this out of apply_special - this is just done 1026 * Break this out of apply_special - this is just done
2922 * to keep the size of apply_special to a more managable size. 1027 * to keep the size of apply_special to a more managable size.
2923 */ 1028 */
2924static int 1029static bool
2925unapply_special (object *who, object *op, int aflags) 1030unapply_special (object *who, object *op, int aflags)
2926{ 1031{
2927 if (INVOKE_OBJECT (BE_UNREADY, op, ARG_OBJECT (who), ARG_INT (aflags)) 1032 if (INVOKE_OBJECT (BE_UNREADY, op, ARG_OBJECT (who), ARG_INT (aflags))
2928 || INVOKE_OBJECT (UNREADY, who, ARG_OBJECT (op), ARG_INT (aflags))) 1033 || INVOKE_OBJECT (UNREADY, who, ARG_OBJECT (op), ARG_INT (aflags)))
2929 return RESULT_INT (0); 1034 return RESULT_INT (0);
… …
2970 who->statusmsg (format ("You unready %s.", query_name (op))); 1075 who->statusmsg (format ("You unready %s.", query_name (op)));
2971 change_abil (who, op); 1076 change_abil (who, op);
2972 } 1077 }
2973 else 1078 else
2974 { 1079 {
2975 who->change_skill (0);
2976
2977 if (op->type == BOW) 1080 if (op->type == BOW)
2978 op->flag [FLAG_READY_BOW ] = false; 1081 op->flag [FLAG_READY_BOW ] = false;
2979 else 1082 else
2980 op->flag [FLAG_READY_RANGE] = false; 1083 op->flag [FLAG_READY_RANGE] = false;
2981 } 1084 }
… …
3011 if (object *pl = op->visible_to ()) 1114 if (object *pl = op->visible_to ())
3012 esrv_send_item (pl, op); 1115 esrv_send_item (pl, op);
3013 1116
3014 who->update_stats (); 1117 who->update_stats ();
3015 1118
3016 return 0; 1119 return 1;
3017} 1120}
3018 1121
3019/** 1122/**
3020 * Returns the object that is using location 'loc'. 1123 * Returns the object that is using location 'loc'.
3021 * Note that 'start' is the first object to start examing - we 1124 * Note that 'start' is the first object to start examing - we
… …
3057#define CANNOT_REMOVE_CURSED \ 1160#define CANNOT_REMOVE_CURSED \
3058 "H<You cannot remove cursed or damned items, you first have to remove the curse. " \ 1161 "H<You cannot remove cursed or damned items, you first have to remove the curse. " \
3059 "Praying over an altar, scrolls of remove curse/damnation, " \ 1162 "Praying over an altar, scrolls of remove curse/damnation, " \
3060 "priests or even other players might help.>" 1163 "priests or even other players might help.>"
3061 1164
3062static int 1165static bool
3063unapply_for_ob (object *who, object *op, int aflags) 1166unapply_for_ob (object *who, object *op, int aflags)
3064{ 1167{
3065 if (op->is_range ()) 1168 if (op->is_range ())
3066 for (object *tmp = who->inv; tmp; tmp = tmp->below) 1169 for (object *tmp = who->inv; tmp; tmp = tmp->below)
3067 if (QUERY_FLAG (tmp, FLAG_APPLIED) && tmp->is_range ()) 1170 if (QUERY_FLAG (tmp, FLAG_APPLIED) && tmp->is_range ())
… …
3076 { 1179 {
3077 /* In this case, we want to try and remove a cursed item. 1180 /* In this case, we want to try and remove a cursed item.
3078 * While we know it won't work, we want unapply_special to 1181 * While we know it won't work, we want unapply_special to
3079 * at least generate the message. 1182 * at least generate the message.
3080 */ 1183 */
3081 who->failmsg (format ("No matter how hard you try, you just can't remove the %s." CANNOT_REMOVE_CURSED, query_name (tmp))); 1184 who->failmsgf ("No matter how hard you try, you just can't remove the %s." CANNOT_REMOVE_CURSED, query_name (tmp));
3082 return 1; 1185 return 1;
3083 } 1186 }
3084 1187
3085 for (int i = 0; i < NUM_BODY_LOCATIONS; i++) 1188 for (int i = 0; i < NUM_BODY_LOCATIONS; i++)
3086 { 1189 {
… …
3120 /* Cursed item that we can't unequip - tell the player. 1223 /* Cursed item that we can't unequip - tell the player.
3121 * Note this could be annoying if this is just one of a few, 1224 * Note this could be annoying if this is just one of a few,
3122 * so it may not be critical (eg, putting on a ring and you have 1225 * so it may not be critical (eg, putting on a ring and you have
3123 * one cursed ring.) 1226 * one cursed ring.)
3124 */ 1227 */
3125 who->failmsg (format ("The %s just won't come off." CANNOT_REMOVE_CURSED, query_name (tmp))); 1228 who->failmsgf ("The %s just won't come off." CANNOT_REMOVE_CURSED, query_name (tmp));
3126 } 1229 }
3127 1230
3128 last = tmp->below; 1231 last = tmp->below;
3129 } 1232 }
3130 /* if we got here, this slot is freed up - otherwise, if it wasn't freed up, the 1233 /* if we got here, this slot is freed up - otherwise, if it wasn't freed up, the
… …
3250 if (op->type == BOW && !QUERY_FLAG (who, FLAG_USE_BOW)) 1353 if (op->type == BOW && !QUERY_FLAG (who, FLAG_USE_BOW))
3251 retval |= CAN_APPLY_RESTRICTION; 1354 retval |= CAN_APPLY_RESTRICTION;
3252 } 1355 }
3253 1356
3254 return retval; 1357 return retval;
3255}
3256
3257// saner interface, returns successful status
3258bool
3259object::apply (object *ob, int aflags)
3260{
3261 if (!ob) // simplifies a lot of callers
3262 return true;
3263
3264 bool want_apply =
3265 aflags & AP_APPLY ? true
3266 : aflags & AP_UNAPPLY ? false
3267 : !ob->flag [FLAG_APPLIED]; // AP_TOGGLE
3268
3269 object_ptr *slot = 0;
3270
3271 // detect the slot, if this is a player
3272 if (contr && !(aflags & AP_NO_SLOT))
3273 {
3274 object *oslot;
3275
3276 switch (ob->type)
3277 {
3278 case WEAPON:
3279 slot = &contr->combat_ob;
3280 oslot = contr->ranged_ob;
3281 break;
3282
3283 case BOW:
3284 case RANGED:
3285 case SPELL:
3286 case WAND:
3287 case ROD:
3288 case HORN:
3289 case BUILDER:
3290 slot = &contr->ranged_ob;
3291 oslot = contr->combat_ob;
3292 break;
3293
3294 // oh, the humanity
3295 case SKILL:
3296 if (aflags & AP_NO_SLOT)
3297 break;
3298
3299 if (skill_flags [ob->subtype] & SF_NEED_ITEM)
3300 break;
3301
3302 if (skill_flags [ob->subtype] & SF_COMBAT)
3303 {
3304 slot = &contr->combat_ob;
3305 oslot = contr->ranged_ob;
3306 }
3307 else if (skill_flags [ob->subtype] & SF_RANGED)
3308 {
3309 slot = &contr->ranged_ob;
3310 oslot = contr->combat_ob;
3311 }
3312
3313 break;
3314 }
3315
3316 // now handle slot exclusions
3317 if (slot)
3318 {
3319 // only one slot can be active
3320 if (want_apply)
3321 apply (oslot, AP_UNAPPLY);
3322
3323 // clear item from slot if applied
3324 if (!want_apply && *slot == ob)
3325 {
3326 *slot = 0;
3327
3328 if (current_weapon == ob)
3329 current_weapon = 0;
3330 }
3331 }
3332 }
3333
3334 if (ob->flag [FLAG_APPLIED] != want_apply)
3335 manual_apply (this, ob, aflags);
3336
3337 if (ob->flag [FLAG_APPLIED] != want_apply)
3338 return false;
3339
3340 if (slot)
3341 current_weapon = *slot = ob;
3342
3343 return true;
3344} 1358}
3345 1359
3346/** 1360/**
3347 * who is the object using the object. It can be a monster. 1361 * who is the object using the object. It can be a monster.
3348 * op is the object they are using. op is an equipment type item, 1362 * op is the object they are using. op is an equipment type item,
… …
3368 */ 1382 */
3369 1383
3370#define LACK_ITEM_POWER \ 1384#define LACK_ITEM_POWER \
3371 " H<You lack enough unused item power to use this weapon, see the skills command.>" 1385 " H<You lack enough unused item power to use this weapon, see the skills command.>"
3372 1386
3373int 1387static bool
3374apply_special (object *who, object *op, int aflags) 1388apply_special (object *who, object *op, int aflags)
3375{ 1389{
3376 int basic_flag = aflags & AP_MODE; 1390 int basic_flag = aflags & AP_MODE;
3377 object *tmp, *tmp2, *skop = NULL; 1391 object *tmp, *tmp2, *skop = NULL;
3378 1392
… …
3380 { 1394 {
3381 LOG (llevError, "apply_special() from object without environment.\n"); 1395 LOG (llevError, "apply_special() from object without environment.\n");
3382 return 1; 1396 return 1;
3383 } 1397 }
3384 1398
1399 //TODO: remove these when apply_special is no longer exposed
3385 if (op->env != who) 1400 if (op->env != who)
3386 return 1; /* op is not in inventory */ 1401 return 1; /* op is not in inventory */
3387 1402
3388 /* trying to unequip op */ 1403 /* trying to unequip op */
3389 if (QUERY_FLAG (op, FLAG_APPLIED)) 1404 if (QUERY_FLAG (op, FLAG_APPLIED))
… …
3392 if (basic_flag == AP_APPLY) 1407 if (basic_flag == AP_APPLY)
3393 return 0; 1408 return 0;
3394 1409
3395 if (!(aflags & AP_IGNORE_CURSE) && (QUERY_FLAG (op, FLAG_CURSED) || QUERY_FLAG (op, FLAG_DAMNED))) 1410 if (!(aflags & AP_IGNORE_CURSE) && (QUERY_FLAG (op, FLAG_CURSED) || QUERY_FLAG (op, FLAG_DAMNED)))
3396 { 1411 {
3397 who->failmsg (format ("No matter how hard you try, you just can't remove %s." CANNOT_REMOVE_CURSED, query_name (op))); 1412 who->failmsgf ("No matter how hard you try, you just can't remove %s." CANNOT_REMOVE_CURSED, query_name (op));
3398 return 1; 1413 return 1;
3399 } 1414 }
3400 1415
3401 return unapply_special (who, op, aflags); 1416 return unapply_special (who, op, aflags);
3402 } 1417 }
… …
3408 /* Can't just apply this object. Lets see what not and what to do */ 1423 /* Can't just apply this object. Lets see what not and what to do */
3409 if (int i = can_apply_object (who, op)) 1424 if (int i = can_apply_object (who, op))
3410 { 1425 {
3411 if (i & CAN_APPLY_NEVER) 1426 if (i & CAN_APPLY_NEVER)
3412 { 1427 {
3413 who->failmsg (format ("You don't have the body to use a %s. H<You can never apply this item.>", query_name (op))); 1428 who->failmsgf ("You don't have the body to use a %s. H<You can never apply this item.>", query_name (op));
3414 return 1; 1429 return 1;
3415 } 1430 }
3416 else if (i & CAN_APPLY_RESTRICTION) 1431 else if (i & CAN_APPLY_RESTRICTION)
3417 { 1432 {
3418 who->failmsg (format ( 1433 who->failmsgf (
3419 "You have a prohibition against using a %s. " 1434 "You have a prohibition against using a %s. "
3420 "H<Your belief, profession or class prevents you from applying this item.>", 1435 "H<Your belief, profession or class prevents you from applying this item.>",
3421 query_name (op) 1436 query_name (op)
3422 )); 1437 );
3423 return 1; 1438 return 1;
3424 } 1439 }
3425 1440
3426 if (who->type != PLAYER) 1441 if (who->type != PLAYER)
3427 { 1442 {
… …
3448 // try to ready attached skill first 1463 // try to ready attached skill first
3449 skop = find_skill_by_name (who, op->skill); 1464 skop = find_skill_by_name (who, op->skill);
3450 1465
3451 if (!skop) 1466 if (!skop)
3452 { 1467 {
3453 who->failmsg (format ("You need the %s skill to use this item!", &op->skill)); 1468 who->failmsgf ("You need the %s skill to use this item!", &op->skill);
3454 return 1; 1469 return 1;
3455 } 1470 }
3456 else if (!who->apply (skop, AP_APPLY | AP_NO_SLOT)) 1471 else if (!who->apply (skop, AP_APPLY | AP_NO_SLOT))
3457 { 1472 {
3458 who->failmsg (format ("You can't use the required %s skill!", &op->skill)); 1473 who->failmsgf ("You can't use the required %s skill!", &op->skill);
3459 return 1; 1474 return 1;
3460 } 1475 }
3461 } 1476 }
3462 1477
3463 if (!check_item_power (who, op->item_power)) 1478 if (!check_item_power (who, op->item_power))
… …
3495 if (player *pl = who->contr) 1510 if (player *pl = who->contr)
3496 { 1511 {
3497 who->statusmsg (format ("You wield %s.", query_name (op))); 1512 who->statusmsg (format ("You wield %s.", query_name (op)));
3498 change_abil (who, op); 1513 change_abil (who, op);
3499 } 1514 }
3500 else
3501 who->change_skill (skop);
3502 1515
3503 op->flag [FLAG_READY_WEAPON] = true; 1516 op->flag [FLAG_READY_WEAPON] = true;
3504 break; 1517 break;
3505 1518
3506 case ARMOUR: 1519 case ARMOUR:
… …
3530 { 1543 {
3531 // skill is used on it's own, as opposed to being a chosen_skill 1544 // skill is used on it's own, as opposed to being a chosen_skill
3532 1545
3533 if (skill_flags [op->subtype] & (SF_NEED_ITEM | SF_MANA)) 1546 if (skill_flags [op->subtype] & (SF_NEED_ITEM | SF_MANA))
3534 { 1547 {
3535 who->failmsg (format ( 1548 who->failmsgf (
3536 "You feel as if you wanted to do something funny, but you can't remember what. " 1549 "You feel as if you wanted to do something funny, but you can't remember what. "
3537 "H<The %s skill needs something else to function, for example a tool, weapon, rod, or spell. " 1550 "H<The %s skill needs something else to function, for example a tool, weapon, rod, or spell. "
3538 "It cannot be used on its own.>", 1551 "It cannot be used on its own.>",
3539 &op->skill 1552 &op->skill
3540 )); 1553 );
3541 if (tmp) who->insert (tmp); 1554 if (tmp) who->insert (tmp);
3542 return 1; 1555 return 1;
3543 } 1556 }
3544 1557
3545 if (skill_flags [op->subtype] & SF_AUTARK 1558 if (skill_flags [op->subtype] & SF_AUTARK
3546 || !(skill_flags [op->subtype] & (SF_COMBAT | SF_RANGED))) 1559 || !(skill_flags [op->subtype] & (SF_COMBAT | SF_RANGED)))
3547 { 1560 {
3548 if (skill_flags [op->subtype] & SF_USE) 1561 if (skill_flags [op->subtype] & SF_USE)
3549 who->failmsg (format ( 1562 who->failmsgf (
3550 "You feel as if you wanted to do something funny, but you can't remember what. " 1563 "You feel as if you wanted to do something funny, but you can't remember what. "
3551 "H<The %s skill cannot be readied, instead, try C<use_skill %s>.>", 1564 "H<The %s skill cannot be readied, instead, try C<use_skill %s>.>",
3552 &op->skill, &op->skill 1565 &op->skill, &op->skill
3553 )); 1566 );
3554 else 1567 else
3555 who->failmsg (format ( 1568 who->failmsgf (
3556 "You feel as if you wanted to do something funny, but you can't remember what. " 1569 "You feel as if you wanted to do something funny, but you can't remember what. "
3557 "H<The %s skill cannot be readied or used, it is always active.>", 1570 "H<The %s skill cannot be readied or used, it is always active.>",
3558 &op->skill, &op->skill 1571 &op->skill
3559 )); 1572 );
3560 1573
3561 if (tmp) who->insert (tmp); 1574 if (tmp) who->insert (tmp);
1575
3562 return 1; 1576 return 1;
3563 } 1577 }
3564 1578
3565 if (who->contr) 1579 if (who->contr)
3566 who->statusmsg (format ( 1580 if (op->invisible)
3567 op->invisible ? "You can now use the %s skill." : "You ready %s.", 1581 who->statusmsg (format ("You can now use the %s skill.", &op->skill));
3568 query_name (op),
3569 &op->skill
3570 )); 1582 else
1583 who->statusmsg (format ("You ready %s.", query_name (op)));
3571 } 1584 }
3572 1585
3573 SET_FLAG (who, FLAG_READY_SKILL); 1586 SET_FLAG (who, FLAG_READY_SKILL);
3574 SET_FLAG (op, FLAG_APPLIED); 1587 SET_FLAG (op, FLAG_APPLIED);
3575 change_abil (who, op); 1588 change_abil (who, op);
… …
3610 1623
3611 /*FALLTHROUGH*/ 1624 /*FALLTHROUGH*/
3612 case WAND: 1625 case WAND:
3613 case ROD: 1626 case ROD:
3614 case HORN: 1627 case HORN:
3615 /* check for skill, alter player status */
3616
3617 if (!skop)
3618 {
3619 who->failmsg (format ("The %s is broken, please report this to the dungeon master!", query_name (op)));//TODO
3620 if (tmp) who->insert (tmp);
3621 return 1;
3622 }
3623
3624 op->flag [FLAG_APPLIED] = true; 1628 op->flag [FLAG_APPLIED] = true;
3625 1629
3626 if (player *pl = who->contr) 1630 if (player *pl = who->contr)
3627 { 1631 {
3628 who->statusmsg (format ("You ready %s.", query_name (op))); 1632 who->statusmsg (format ("You ready %s.", query_name (op)));
… …
3632 1636
3633 change_abil (who, op); 1637 change_abil (who, op);
3634 } 1638 }
3635 else 1639 else
3636 { 1640 {
3637 who->change_skill (skop);
3638
3639 if (op->type == BOW) 1641 if (op->type == BOW)
3640 op->flag [FLAG_READY_BOW ] = true; 1642 op->flag [FLAG_READY_BOW ] = true;
3641 else 1643 else
3642 op->flag [FLAG_READY_RANGE] = true; 1644 op->flag [FLAG_READY_RANGE] = true;
3643 } 1645 }
… …
3681 1683
3682 if (object *pl = op->visible_to ()) 1684 if (object *pl = op->visible_to ())
3683 esrv_send_item (pl, op); 1685 esrv_send_item (pl, op);
3684 1686
3685 return 0; 1687 return 0;
1688}
1689
1690/**
1691 * Check if op should abort moving victim because of it's race or slaying.
1692 * Returns 1 if it should abort, returns 0 if it should continue.
1693 */
1694int
1695should_director_abort (object *op, object *victim)
1696{
1697 int arch_flag, name_flag, race_flag;
1698
1699 /* Get flags to determine what of arch, name, and race should be checked.
1700 * This is stored in subtype, and is a bitmask, the LSB is the arch flag,
1701 * the next is the name flag, and the last is the race flag. Also note,
1702 * if subtype is set to zero, that also goes to defaults of all affecting
1703 * it. Examples:
1704 * subtype 1: only arch
1705 * subtype 3: arch or name
1706 * subtype 5: arch or race
1707 * subtype 7: all three
1708 */
1709 if (op->subtype)
1710 {
1711 arch_flag = op->subtype & 1;
1712 name_flag = op->subtype & 2;
1713 race_flag = op->subtype & 4;
1714 }
1715 else
1716 {
1717 arch_flag = 1;
1718 name_flag = 1;
1719 race_flag = 1;
1720 }
1721
1722 /* If the director has race set, only affect objects with a arch,
1723 * name or race that matches.
1724 */
1725 if ((op->race) &&
1726 ((!(victim->arch && arch_flag && victim->arch->archname) || op->race != victim->arch->archname)) &&
1727 ((!(victim->name && name_flag) || op->race != victim->name)) &&
1728 ((!(victim->race && race_flag) || op->race != victim->race)))
1729 return 1;
1730
1731 /* If the director has slaying set, only affect objects where none
1732 * of arch, name, or race match.
1733 */
1734 if ((op->slaying) && (((victim->arch && arch_flag && victim->arch->archname && op->slaying == victim->arch->archname))) ||
1735 ((victim->name && name_flag && op->slaying == victim->name)) ||
1736 ((victim->race && race_flag && op->slaying == victim->race)))
1737 return 1;
1738
1739 return 0;
1740}
1741
1742/**
1743 * This handles a player dropping money on an altar to identify stuff.
1744 * It'll identify marked item, if none all items up to dropped money.
1745 * Return value: 1 if money was destroyed, 0 if not.
1746 */
1747static int
1748apply_id_altar (object *money, object *altar, object *pl)
1749{
1750 dynbuf_text &buf = msg_dynbuf; buf.clear ();
1751
1752 if (!pl || pl->type != PLAYER)
1753 return 0;
1754
1755 /* Check for MONEY type is a special hack - it prevents 'nothing needs
1756 * identifying' from being printed out more than it needs to be.
1757 */
1758 if (!check_altar_sacrifice (altar, money, pl) || money->type != MONEY)
1759 return 0;
1760
1761 /* if the player has a marked item, identify that if it needs to be
1762 * identified. If it doesn't, then go through the player inventory.
1763 */
1764 if (object *marked = find_marked_object (pl))
1765 if (!QUERY_FLAG (marked, FLAG_IDENTIFIED) && need_identify (marked))
1766 {
1767 if (operate_altar (altar, &money, pl))
1768 {
1769 identify (marked);
1770
1771 buf.printf ("You have %s.\r", long_desc (marked, pl));
1772 if (marked->msg)
1773 buf << "The item has a story:\r" << marked->msg << "\n\n";
1774
1775 return !money;
1776 }
1777 }
1778
1779 for (object *id = pl->inv; id; id = id->below)
1780 {
1781 if (!QUERY_FLAG (id, FLAG_IDENTIFIED) && !id->invisible && need_identify (id))
1782 {
1783 if (operate_altar (altar, &money, pl))
1784 {
1785 identify (id);
1786
1787 buf.printf ("You have %s.\r", long_desc (id, pl));
1788 if (id->msg)
1789 buf << "The item has a story:\r" << id->msg << "\n\n";
1790
1791 /* If no more money, might as well quit now */
1792 if (!money || !check_altar_sacrifice (altar, money))
1793 break;
1794 }
1795 else
1796 {
1797 LOG (llevError, "check_id_altar: Couldn't do sacrifice when we should have been able to\n");
1798 break;
1799 }
1800 }
1801 }
1802
1803 if (buf.empty ())
1804 pl->failmsg ("You have nothing that needs identifying");
1805 else
1806 pl->contr->infobox (MSG_CHANNEL ("identify"), buf);
1807
1808 return !money;
1809}
1810
1811/**
1812 * This checks whether the object has a "on_use_yield" field, and if so generated and drops
1813 * matching item.
1814 **/
1815void
1816handle_apply_yield (object *tmp)
1817{
1818 if (shstr_tmp yield = tmp->kv (shstr_on_use_yield))
1819 archetype::get (yield)->insert_at (tmp, tmp, INS_BELOW_ORIGINATOR);
1820}
1821
1822/**
1823 * Handles applying a potion.
1824 */
1825int
1826apply_potion (object *op, object *tmp)
1827{
1828 int got_one = 0, i;
1829 object *force = 0;
1830
1831 object *floor = GET_MAP_OB (op->map, op->x, op->y);
1832
1833 if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_SAFE)
1834 {
1835 op->failmsg ("Gods prevent you from using this here, it's sacred ground!");
1836
1837 CLEAR_FLAG (tmp, FLAG_APPLIED);
1838 return 0;
1839 }
1840
1841 if (op->type == PLAYER)
1842 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
1843 identify (tmp);
1844
1845 handle_apply_yield (tmp);
1846
1847 /* Potion of restoration - only for players */
1848 if (op->type == PLAYER && (tmp->attacktype & AT_DEPLETE))
1849 {
1850 object *depl;
1851 archetype *at;
1852
1853 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
1854 {
1855 op->drain_stat ();
1856 op->update_stats ();
1857 tmp->decrease ();
1858 return 1;
1859 }
1860
1861 if (!(at = archetype::find (shstr_depletion)))
1862 {
1863 LOG (llevError, "Could not find archetype depletion\n");
1864 return 0;
1865 }
1866
1867 depl = present_arch_in_ob (at, op);
1868
1869 if (depl)
1870 {
1871 for (i = 0; i < NUM_STATS; i++)
1872 if (depl->stats.stat (i))
1873 op->statusmsg (restore_msg[i]);
1874
1875 depl->destroy ();
1876 op->update_stats ();
1877 }
1878 else
1879 op->statusmsg ("Your potion had no effect.");
1880
1881 tmp->decrease ();
1882 return 1;
1883 }
1884
1885 /* improvement potion - only for players */
1886 if (op->type == PLAYER && (tmp->attacktype & AT_GODPOWER))
1887 {
1888 for (i = 1; i < min (11, op->level); i++)
1889 {
1890 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
1891 {
1892 if (op->contr->levhp[i] != 1)
1893 {
1894 op->contr->levhp[i] = 1;
1895 break;
1896 }
1897
1898 if (op->contr->levsp[i] != 1)
1899 {
1900 op->contr->levsp[i] = 1;
1901 break;
1902 }
1903
1904 if (op->contr->levgrace[i] != 1)
1905 {
1906 op->contr->levgrace[i] = 1;
1907 break;
1908 }
1909 }
1910 else
1911 {
1912 if (op->contr->levhp[i] < 9)
1913 {
1914 op->contr->levhp[i] = 9;
1915 break;
1916 }
1917
1918 if (op->contr->levsp[i] < 6)
1919 {
1920 op->contr->levsp[i] = 6;
1921 break;
1922 }
1923
1924 if (op->contr->levgrace[i] < 3)
1925 {
1926 op->contr->levgrace[i] = 3;
1927 break;
1928 }
1929 }
1930 }
1931
1932 /* Just makes checking easier */
1933 if (i < min (11, op->level))
1934 got_one = 1;
1935
1936 if (!QUERY_FLAG (tmp, FLAG_CURSED) && !QUERY_FLAG (tmp, FLAG_DAMNED))
1937 {
1938 if (got_one)
1939 {
1940 op->update_stats ();
1941 op->statusmsg ("The Gods smile upon you and remake you "
1942 "a little more in their image. "
1943 "You feel a little more perfect.", NDI_GREEN);
1944 }
1945 else
1946 op->statusmsg ("The potion had no effect - you are already perfect.");
1947 }
1948 else
1949 { /* cursed potion */
1950 if (got_one)
1951 {
1952 op->update_stats ();
1953 op->failmsg ("The Gods are angry and punish you.");
1954 }
1955 else
1956 op->statusmsg ("You are fortunate that you are so pathetic.", NDI_DK_ORANGE);
1957 }
1958
1959 tmp->decrease ();
1960 return 1;
1961 }
1962
1963
1964 /* A potion that casts a spell. Healing, restore spellpoint (power potion)
1965 * and heroism all fit into this category. Given the spell object code,
1966 * there is no limit to the number of spells that potions can be cast,
1967 * but direction is problematic to try and imbue fireball potions for example.
1968 */
1969 if (tmp->inv)
1970 {
1971 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
1972 {
1973 op->failmsg ("Yech! Your lungs are on fire!");
1974 create_exploding_ball_at (op, op->level);
1975 }
1976 else
1977 cast_spell (op, tmp, op->facing, tmp->inv, NULL);
1978
1979 tmp->decrease ();
1980
1981 /* if youre dead, no point in doing this... */
1982 if (!QUERY_FLAG (op, FLAG_REMOVED))
1983 op->update_stats ();
1984
1985 return 1;
1986 }
1987
1988 /* Deal with protection potions */
1989 force = NULL;
1990 for (i = 0; i < NROFATTACKS; i++)
1991 {
1992 if (tmp->resist[i])
1993 {
1994 if (!force)
1995 force = get_archetype (FORCE_NAME);
1996
1997 memcpy (force->resist, tmp->resist, sizeof (tmp->resist));
1998 force->type = POTION_EFFECT;
1999 break; /* Only need to find one protection since we copy entire batch */
2000 }
2001 }
2002
2003 /* This is a protection potion */
2004 if (force)
2005 {
2006 /* cursed items last longer */
2007 if (QUERY_FLAG (tmp, FLAG_CURSED) || QUERY_FLAG (tmp, FLAG_DAMNED))
2008 {
2009 force->stats.food *= 10;
2010 for (i = 0; i < NROFATTACKS; i++)
2011 if (force->resist[i] > 0)
2012 force->resist[i] = -force->resist[i]; /* prot => vuln */
2013 }
2014
2015 force->speed_left = -1;
2016 force = insert_ob_in_ob (force, op);
2017 CLEAR_FLAG (tmp, FLAG_APPLIED);
2018 SET_FLAG (force, FLAG_APPLIED);
2019 change_abil (op, force);
2020 tmp->decrease ();
2021 return 1;
2022 }
2023
2024 /* Only thing left are the stat potions */
2025 if (op->type == PLAYER)
2026 { /* only for players */
2027 if ((QUERY_FLAG (tmp, FLAG_CURSED)
2028 || QUERY_FLAG (tmp, FLAG_DAMNED))
2029 && tmp->value != 0)
2030 CLEAR_FLAG (tmp, FLAG_APPLIED);
2031 else
2032 SET_FLAG (tmp, FLAG_APPLIED);
2033
2034 if (!change_abil (op, tmp))
2035 op->statusmsg ("Nothing happened.");
2036 }
2037
2038 /* CLEAR_FLAG is so that if the character has other potions
2039 * that were grouped with the one consumed, his
2040 * stat will not be raised by them. fix_player just clears
2041 * up all the stats.
2042 */
2043 CLEAR_FLAG (tmp, FLAG_APPLIED);
2044 op->update_stats ();
2045 tmp->decrease ();
2046 return 1;
2047}
2048
2049/**
2050 * 'victim' moves onto 'trap'
2051 * 'victim' leaves 'trap'
2052 * effect is determined by move_on/move_off of trap and move_type of victime.
2053 *
2054 * originator: Player, monster or other object that caused 'victim' to move
2055 * onto 'trap'. Will receive messages caused by this action. May be NULL.
2056 * However, some types of traps require an originator to function.
2057 */
2058void
2059move_apply (object *trap, object *victim, object *originator)
2060{
2061 static int recursion_depth = 0;
2062
2063 /* Only exits affect DMs. */
2064 if (QUERY_FLAG (victim, FLAG_WIZPASS) && trap->type != EXIT && trap->type != SIGN)
2065 return;
2066
2067 /* move_apply() is the most likely candidate for causing unwanted and
2068 * possibly unlimited recursion.
2069 */
2070 /* The following was changed because it was causing perfectly correct
2071 * maps to fail. 1) it's not an error to recurse:
2072 * rune detonates, summoning monster. monster lands on nearby rune.
2073 * nearby rune detonates. This sort of recursion is expected and
2074 * proper. This code was causing needless crashes.
2075 */
2076 if (recursion_depth >= 500)
2077 {
2078 LOG (llevDebug, "WARNING: move_apply(): aborting recursion "
2079 "[trap arch %s, name %s; victim arch %s, name %s]\n", &trap->arch->archname, &trap->name, &victim->arch->archname, &victim->name);
2080 return;
2081 }
2082
2083 recursion_depth++;
2084 if (trap->head)
2085 trap = trap->head;
2086
2087 if (!INVOKE_OBJECT (MOVE_TRIGGER, trap, ARG_OBJECT (victim), ARG_OBJECT (originator)))
2088 switch (trap->type)
2089 {
2090 case PLAYERMOVER:
2091 if (trap->attacktype && (trap->level || victim->type != PLAYER) && !should_director_abort (trap, victim))
2092 {
2093 if (!trap->stats.maxsp)
2094 trap->stats.maxsp = 2;
2095
2096 /* Is this correct? From the docs, it doesn't look like it
2097 * should be divided by trap->speed
2098 */
2099 victim->speed_left = -trap->stats.maxsp * victim->speed / trap->speed;
2100
2101 /* Just put in some sanity check. I think there is a bug in the
2102 * above with some objects have zero speed, and thus the player
2103 * getting permanently paralyzed.
2104 */
2105 if (victim->speed_left < -50.f)
2106 victim->speed_left = -50.f;
2107 /* LOG(llevDebug, "apply, playermove, player speed_left=%f\n", victim->speed_left); */
2108 }
2109 break;
2110
2111 case SPINNER:
2112 if (victim->direction)
2113 {
2114 victim->direction = absdir (victim->direction - trap->stats.sp);
2115 update_turn_face (victim);
2116 }
2117 break;
2118
2119 case DIRECTOR:
2120 if (victim->direction && !should_director_abort (trap, victim))
2121 {
2122 victim->direction = trap->stats.sp;
2123 update_turn_face (victim);
2124 }
2125 break;
2126
2127 case BUTTON:
2128 case PEDESTAL:
2129 case T_MATCH:
2130 update_button (trap, originator);
2131 break;
2132
2133 case ALTAR:
2134 /* sacrifice victim on trap */
2135 apply_altar (trap, victim, originator);
2136 break;
2137
2138 case THROWN_OBJ:
2139 if (trap->inv == NULL)
2140 break;
2141 /* fallthrough */
2142
2143 case ARROW:
2144 /* bad bug: monster throw a object, make a step forwards, step on object ,
2145 * trigger this here and get hit by own missile - and will be own enemy.
2146 * Victim then is his own enemy and will start to kill herself (this is
2147 * removed) but we have not synced victim and his missile. To avoid senseless
2148 * action, we avoid hits here
2149 */
2150 if ((QUERY_FLAG (victim, FLAG_ALIVE) && trap->has_active_speed ())
2151 && trap->owner != victim)
2152 hit_with_arrow (trap, victim);
2153 break;
2154
2155 case SPELL_EFFECT:
2156 apply_spell_effect (trap, victim);
2157 break;
2158
2159 case TRAPDOOR:
2160 {
2161 int max, sound_was_played;
2162 object *ab, *ab_next;
2163
2164 if (!trap->value)
2165 {
2166 int tot;
2167
2168 for (ab = trap->above, tot = 0; ab; ab = ab->above)
2169 if ((ab->move_type && trap->move_on) || ab->move_type == 0)
2170 tot += ab->head_ ()->total_weight ();
2171
2172 if (!(trap->value = (tot > trap->weight) ? 1 : 0))
2173 break;
2174
2175 SET_ANIMATION (trap, trap->value);
2176 update_object (trap, UP_OBJ_FACE);
2177 }
2178
2179 for (ab = trap->above, max = 100, sound_was_played = 0; --max && ab; ab = ab_next)
2180 {
2181 /* need to set this up, since if we do transfer the object,
2182 * ab->above would be bogus
2183 */
2184 ab_next = ab->above;
2185
2186 if ((ab->move_type && trap->move_on) || ab->move_type == 0)
2187 {
2188 if (!sound_was_played)
2189 {
2190 trap->play_sound (trap->sound ? trap->sound : sound_find ("fall_hole"));
2191 sound_was_played = 1;
2192 }
2193
2194 ab->statusmsg ("You fall into a trapdoor!", NDI_RED);
2195 transfer_ob (ab, EXIT_X (trap), EXIT_Y (trap), 0, ab);
2196 }
2197 }
2198 break;
2199 }
2200
2201 case CONVERTER:
2202 if (convert_item (victim, trap) < 0)
2203 {
2204 originator->failmsgf ("The %s seems to be broken!", query_name (trap));
2205 archetype::get (shstr_burnout)->insert_at (trap, trap);
2206 }
2207
2208 break;
2209
2210 case TRIGGER_BUTTON:
2211 case TRIGGER_PEDESTAL:
2212 case TRIGGER_ALTAR:
2213 check_trigger (trap, victim, originator);
2214 break;
2215
2216 case DEEP_SWAMP:
2217 walk_on_deep_swamp (trap, victim);
2218 break;
2219
2220 case CHECK_INV:
2221 check_inv (victim, trap);
2222 break;
2223
2224 case HOLE:
2225 move_apply_hole (trap, victim);
2226 break;
2227
2228 case EXIT:
2229 if (victim->type == PLAYER && EXIT_PATH (trap))
2230 {
2231 /* Basically, don't show exits leading to random maps the
2232 * players output.
2233 */
2234 if (trap->msg && EXIT_PATH (trap) != shstr_random_map_exit)
2235 victim->statusmsg (trap->msg, NDI_NAVY);
2236
2237 trap->play_sound (trap->sound);
2238 victim->enter_exit (trap);
2239 }
2240 break;
2241
2242 case ENCOUNTER:
2243 /* may be some leftovers on this */
2244 break;
2245
2246 case SHOP_MAT:
2247 apply_shop_mat (trap, victim);
2248 break;
2249
2250 /* Drop a certain amount of gold, and have one item identified */
2251 case IDENTIFY_ALTAR:
2252 apply_id_altar (victim, trap, originator);
2253 break;
2254
2255 case SIGN:
2256 if (victim->type != PLAYER && trap->stats.food > 0)
2257 break; /* monsters musn't apply magic_mouths with counters */
2258
2259 apply_sign (victim, trap, 1);
2260 break;
2261
2262 case CONTAINER:
2263 apply_container (victim, trap);
2264 break;
2265
2266 case RUNE:
2267 case TRAP:
2268 if (trap->level && QUERY_FLAG (victim, FLAG_ALIVE))
2269 spring_trap (trap, victim);
2270 break;
2271
2272 default:
2273 LOG (llevDebug, "name %s, arch %s, type %d with fly/walk on/off not "
2274 "handled in move_apply()\n", &trap->name, &trap->arch->archname, trap->type);
2275 break;
2276 }
2277
2278 recursion_depth--;
2279}
2280
2281/**
2282 * Handles reading a regular (ie not containing a spell) book.
2283 */
2284static void
2285apply_book (object *op, object *tmp)
2286{
2287 int lev_diff;
2288 object *skill_ob;
2289
2290 if (QUERY_FLAG (op, FLAG_BLIND) && !QUERY_FLAG (op, FLAG_WIZ))
2291 {
2292 op->failmsg ("You are unable to read while blind!");
2293 return;
2294 }
2295
2296 if (!tmp->msg)
2297 {
2298 op->failmsgf ("The %s contains nothing but meaningless gibberish. H<There is nothing interesting to read here.>", &tmp->name);
2299 return;
2300 }
2301
2302 /* need a literacy skill to read stuff! */
2303 skill_ob = find_skill_by_name (op, tmp->skill);
2304 if (!skill_ob)
2305 {
2306 op->failmsgf ("You are unable to decipher the strange symbols. H<You lack the %s skill to read this.>", &tmp->skill);
2307 return;
2308 }
2309
2310 lev_diff = tmp->level - (skill_ob->level + 5);
2311 if (!QUERY_FLAG (op, FLAG_WIZ) && lev_diff > 0)
2312 {
2313 op->failmsg (lev_diff < 2 ? "This book is just barely beyond your comprehension."
2314 : lev_diff < 3 ? "This book is slightly beyond your comprehension."
2315 : lev_diff < 5 ? "This book is beyond your comprehension."
2316 : lev_diff < 8 ? "This book is quite a bit beyond your comprehension."
2317 : lev_diff < 15 ? "This book is way beyond your comprehension."
2318 : "This book is totally beyond your comprehension.");
2319 return;
2320 }
2321
2322 // we currently don't use the message types for anything.
2323 // readable_message_type *msgType = get_readable_message_type (tmp);
2324
2325 tmp->play_sound (tmp->sound ? tmp->sound : sound_find ("apply_book"));
2326
2327 if (player *pl = op->contr)
2328 if (client *ns = pl->ns)
2329 pl->infobox (MSG_CHANNEL ("book"), format ("T<%s>\n\n%s", (char *)long_desc (tmp, op), &tmp->msg));
2330
2331 /* gain xp from reading */
2332 if (!QUERY_FLAG (tmp, FLAG_NO_SKILL_IDENT))
2333 { /* only if not read before */
2334 int exp_gain = calc_skill_exp (op, tmp, skill_ob);
2335
2336 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
2337 {
2338 /*exp_gain *= 2; because they just identified it too */
2339 SET_FLAG (tmp, FLAG_IDENTIFIED);
2340
2341 if (object *pl = tmp->visible_to ())
2342 esrv_update_item (UPD_FLAGS | UPD_NAME, pl, tmp);
2343 }
2344
2345 change_exp (op, exp_gain, skill_ob->skill, 0);
2346 SET_FLAG (tmp, FLAG_NO_SKILL_IDENT); /* so no more xp gained from this book */
2347 }
2348}
2349
2350/**
2351 * op made some mistake with a scroll, this takes care of punishment.
2352 * scroll_failure()- hacked directly from spell_failure
2353 */
2354static void
2355scroll_failure (object *op, int failure, int power)
2356{
2357 if (abs (failure / 4) > power)
2358 power = abs (failure / 4); /* set minimum effect */
2359
2360 if (failure <= -1 && failure > -15)
2361 { /* wonder */
2362 object *tmp;
2363
2364 op->failmsg ("Your spell warps!");
2365 tmp = get_archetype (SPELL_WONDER);
2366 cast_wonder (op, op, 0, tmp);
2367 tmp->destroy ();
2368 }
2369 else if (failure <= -15 && failure > -35)
2370 { /* drain mana */
2371 op->failmsg ("Your mana is drained!");
2372 op->stats.sp -= random_roll (0, power - 1, op, PREFER_LOW);
2373 if (op->stats.sp < 0)
2374 op->stats.sp = 0;
2375 }
2376 else if (settings.spell_failure_effects == TRUE)
2377 {
2378 if (failure <= -35 && failure > -60)
2379 { /* confusion */
2380 op->failmsg ("The magic recoils on you!");
2381 confuse_player (op, op, power);
2382 }
2383 else if (failure <= -60 && failure > -70)
2384 { /* paralysis */
2385 op->failmsg ("The magic recoils and paralyzes you!");
2386 paralyze_player (op, op, power);
2387 }
2388 else if (failure <= -70 && failure > -80)
2389 { /* blind */
2390 op->failmsg ("The magic recoils on you!");
2391 blind_player (op, op, power);
2392 }
2393 else if (failure <= -80)
2394 { /* blast the immediate area */
2395 object *tmp = get_archetype (LOOSE_MANA);
2396 cast_magic_storm (op, tmp, power);
2397 op->failmsg ("You unleash uncontrolled mana!");
2398 tmp->destroy ();
2399 }
2400 }
2401}
2402
2403/**
2404 * Handles the applying of a skill scroll, calling learn_skill straight.
2405 * op is the person learning the skill, tmp is the skill scroll object
2406 */
2407static void
2408apply_skillscroll (object *op, object *tmp)
2409{
2410 switch (learn_skill (op, tmp))
2411 {
2412 case 0:
2413 op->play_sound (sound_find ("generic_fail"));
2414 op->failmsgf ("You already possess the knowledge held within the %s.", query_name (tmp));
2415 break;
2416
2417 case 1:
2418 tmp->decrease ();
2419 op->play_sound (sound_find ("skill_learn"));
2420 op->statusmsg (format ("You succeed in learning %s", &tmp->skill));
2421 break;
2422
2423 default:
2424 tmp->decrease ();
2425 op->play_sound (sound_find ("generic_fail"));
2426 op->failmsgf ("You fail to learn the knowledge of the %s.\n", query_name (tmp));
2427 break;
2428 }
2429}
2430
2431/**
2432 * Actually makes op learn spell.
2433 * Informs player of what happens.
2434 */
2435void
2436do_learn_spell (object *op, object *spell, int special_prayer)
2437{
2438 object *tmp;
2439
2440 if (op->type != PLAYER)
2441 {
2442 LOG (llevError, "BUG: do_learn_spell(): not a player\n");
2443 return;
2444 }
2445
2446 /* Upgrade special prayers to normal prayers */
2447 if ((tmp = check_spell_known (op, spell->name)) != NULL)
2448 {
2449 if (special_prayer && !QUERY_FLAG (tmp, FLAG_STARTEQUIP))
2450 {
2451 LOG (llevError, "BUG: do_learn_spell(): spell already known, but not marked as startequip\n");
2452 return;
2453 }
2454 return;
2455 }
2456
2457 op->contr->play_sound (sound_find ("learn_spell"));
2458
2459 tmp = spell->clone ();
2460 insert_ob_in_ob (tmp, op);
2461
2462 if (special_prayer)
2463 SET_FLAG (tmp, FLAG_STARTEQUIP);
2464
2465 esrv_add_spells (op->contr, tmp);
2466}
2467
2468/**
2469 * Erases spell from player's inventory.
2470 */
2471void
2472do_forget_spell (object *op, const char *spell)
2473{
2474 object *spob;
2475
2476 if (op->type != PLAYER)
2477 {
2478 LOG (llevError, "BUG: do_forget_spell(): not a player\n");
2479 return;
2480 }
2481 if ((spob = check_spell_known (op, spell)) == NULL)
2482 {
2483 LOG (llevError, "BUG: do_forget_spell(): spell not known\n");
2484 return;
2485 }
2486
2487 op->failmsgf ("You lose knowledge of %s.", spell);
2488 esrv_remove_spell (op->contr, spob);
2489 spob->destroy ();
2490}
2491
2492/**
2493 * Handles player applying a spellbook.
2494 * Checks whether player has knowledge of required skill, doesn't already know the spell,
2495 * stuff like that. Random learning failure too.
2496 */
2497static void
2498apply_spellbook (object *op, object *tmp)
2499{
2500 object *skop, *spell, *spell_skill;
2501
2502 if (QUERY_FLAG (op, FLAG_BLIND) && !QUERY_FLAG (op, FLAG_WIZ))
2503 {
2504 op->failmsg ("You are unable to read while blind.");
2505 return;
2506 }
2507
2508 /* artifact_spellbooks have 'slaying' field point to a spell name,
2509 * instead of having their spell stored in stats.sp. These are
2510 * legacy spellbooks
2511 */
2512 if (tmp->slaying)
2513 {
2514 spell = find_archetype_by_object_name (tmp->slaying)->instance ();
2515
2516 if (!spell)
2517 {
2518 op->failmsgf ("The book's formula for %s is incomplete.", &tmp->slaying);
2519 return;
2520 }
2521 else
2522 insert_ob_in_ob (spell, tmp);
2523
2524 tmp->slaying = 0;
2525 }
2526
2527 skop = find_skill_by_name (op, tmp->skill);
2528
2529 /* need a literacy skill to learn spells. Also, having a literacy level
2530 * lower than the spell will make learning the spell more difficult */
2531 if (!skop)
2532 {
2533 op->failmsgf ("You can't read! Your attempt fails. H<You lack the %s skill.>", &tmp->skill);
2534 return;
2535 }
2536
2537 spell = tmp->inv;
2538
2539 if (!spell)
2540 {
2541 LOG (llevError, "apply_spellbook: Book %s has no spell in it!\n", &tmp->name);
2542 op->failmsg ("The spellbook symbols make no sense. This is a bug, please report!");
2543 return;
2544 }
2545
2546 int learn_level = sqrtf (spell->level) * 1.5f;
2547 if (skop->level < learn_level)
2548 {
2549 op->failmsgf ("You are unable to decipher the strange symbols. H<Your %s level is too low, it must be at least %d.>",
2550 &tmp->skill, learn_level);
2551 return;
2552 }
2553
2554 op->statusmsg (format ("The spellbook contains the %s level spell %s.", ordinal (spell->level), &spell->name));
2555
2556 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
2557 identify (tmp);
2558
2559 /* I removed the check for special_prayer_mark here - it didn't make
2560 * a lot of sense - special prayers are not found in spellbooks, and
2561 * if the player doesn't know the spell, doesn't make a lot of sense that
2562 * they would have a special prayer mark.
2563 */
2564 if (check_spell_known (op, spell->name))
2565 {
2566 op->statusmsg ("You already know that spell. H<It makes no sense to learn spells twice, and would only waste the spellbook.>\n");
2567 return;
2568 }
2569
2570 if (spell->skill)
2571 {
2572 spell_skill = find_skill_by_name (op, spell->skill);
2573
2574 if (!spell_skill)
2575 {
2576 op->failmsgf ("You lack the %s skill to use this spell.", &spell->skill);
2577 return;
2578 }
2579
2580 if (spell_skill->level < spell->level)
2581 {
2582 op->failmsgf ("You need to be level %d in %s to learn this spell.", spell->level, &spell->skill);
2583 return;
2584 }
2585 }
2586
2587 /* Logic as follows
2588 *
2589 * 1- MU spells use Int to learn, Cleric spells use Wisdom
2590 *
2591 * 2- The learner's skill level in literacy adjusts the chance to learn
2592 * a spell.
2593 *
2594 * 3 -Automatically fail to learn if you read while confused
2595 *
2596 * Overall, chances are the same but a player will find having a high
2597 * literacy rate very useful! -b.t.
2598 */
2599 if (QUERY_FLAG (op, FLAG_CONFUSED))
2600 {
2601 op->failmsg ("In your confused state you flub the wording of the text!");
2602 scroll_failure (op, 0 - random_roll (0, spell->level, op, PREFER_LOW), max (spell->stats.sp, spell->stats.grace));
2603 }
2604 else if (QUERY_FLAG (tmp, FLAG_STARTEQUIP) ||
2605 (random_roll (0, 100, op, PREFER_LOW) - (5 * skop->level)) < learn_spell[spell->stats.grace ? op->stats.Wis : op->stats.Int])
2606 {
2607 op->statusmsg ("You succeed in learning the spell!", NDI_GREEN);
2608 do_learn_spell (op, spell, 0);
2609
2610 /* xp gain to literacy for spell learning */
2611 if (!QUERY_FLAG (tmp, FLAG_STARTEQUIP))
2612 change_exp (op, calc_skill_exp (op, tmp, skop), skop->skill, 0);
2613 }
2614 else
2615 {
2616 op->contr->play_sound (sound_find ("fumble_spell"));
2617 op->failmsg ("You fail to learn the spell. H<Wis (priests) or Int (wizards) governs the chance of learning a prayer or spell.>\n");
2618 }
2619
2620 tmp->decrease ();
2621}
2622
2623/**
2624 * Handles applying a spell scroll.
2625 */
2626void
2627apply_scroll (object *op, object *tmp, int dir)
2628{
2629 object *skop;
2630
2631 if (QUERY_FLAG (op, FLAG_BLIND) && !QUERY_FLAG (op, FLAG_WIZ))
2632 {
2633 op->failmsg ("You are unable to read while blind.");
2634 return;
2635 }
2636
2637 if (!tmp->inv || tmp->inv->type != SPELL)
2638 {
2639 op->failmsg ("The scroll just doesn't make sense! H<...and never will make sense.>");
2640 return;
2641 }
2642
2643 if (op->type == PLAYER)
2644 {
2645 /* players need a literacy skill to read stuff! */
2646 int exp_gain = 0;
2647
2648 /* hard code literacy - tmp->skill points to where the exp
2649 * should go for anything killed by the spell.
2650 */
2651 skop = find_skill_by_name (op, skill_names[SK_LITERACY]);
2652
2653 if (!skop)
2654 {
2655 op->failmsgf ("You are unable to decipher the strange symbols. H<You lack the %s skill.>", &skill_names[SK_LITERACY]);
2656 return;
2657 }
2658
2659 if ((exp_gain = calc_skill_exp (op, tmp, skop)))
2660 change_exp (op, exp_gain, skop->skill, 0);
2661 }
2662
2663 if (!QUERY_FLAG (tmp, FLAG_IDENTIFIED))
2664 identify (tmp);
2665
2666 op->statusmsg (format ("The scroll of %s turns to dust.", &tmp->inv->name));
2667
2668 cast_spell (op, tmp, dir, tmp->inv, NULL);
2669 tmp->decrease ();
2670}
2671
2672/**
2673 * Applies a treasure object - by default, chest. op
2674 * is the person doing the applying, tmp is the treasure
2675 * chest.
2676 */
2677static void
2678apply_treasure (object *op, object *tmp)
2679{
2680 /* Nice side effect of this treasure creation method is that the treasure
2681 * for the chest is done when the chest is created, and put into the chest
2682 * inventory. So that when the chest burns up, the items still exist. Also
2683 * prevents people from moving chests to more difficult maps to get better
2684 * treasure
2685 */
2686 object *treas = tmp->inv;
2687
2688 if (!treas)
2689 {
2690 op->statusmsg ("The chest was empty.");
2691 tmp->decrease ();
2692 return;
2693 }
2694
2695 while (tmp->inv)
2696 {
2697 treas = tmp->inv;
2698 treas->remove ();
2699
2700 treas->x = op->x;
2701 treas->y = op->y;
2702 treas = insert_ob_in_map (treas, op->map, op, INS_BELOW_ORIGINATOR);
2703
2704 if (treas && (treas->type == RUNE || treas->type == TRAP) && treas->level && QUERY_FLAG (op, FLAG_ALIVE))
2705 spring_trap (treas, op);
2706
2707 /* If either player or container was destroyed, no need to do
2708 * further processing. I think this should be enclused with
2709 * spring trap above, as I don't think there is otherwise
2710 * any way for the treasure chest or player to get killed.
2711 */
2712 if (op->destroyed () || tmp->destroyed ())
2713 break;
2714 }
2715
2716 if (!tmp->destroyed () && !tmp->inv)
2717 tmp->decrease (true);
2718}
2719
2720/**
2721 * A dragon is eating some flesh. If the flesh contains resistances,
2722 * there is a chance for the dragon's skin to get improved.
2723 *
2724 * attributes:
2725 * object *op the object (dragon player) eating the flesh
2726 * object *meal the flesh item, getting chewed in dragon's mouth
2727 * return:
2728 * int 1 if eating successful, 0 if it doesn't work
2729 */
2730static int
2731dragon_eat_flesh (object *op, object *meal)
2732{
2733 object *skin = NULL; /* pointer to dragon skin force */
2734 object *abil = NULL; /* pointer to dragon ability force */
2735 object *tmp = NULL; /* tmp. object */
2736
2737 double chance; /* improvement-chance of one resistance type */
2738 double totalchance = 1; /* total chance of gaining one resistance */
2739 double bonus = 0; /* level bonus (improvement is easier at lowlevel) */
2740 double mbonus = 0; /* monster bonus */
2741 int atnr_winner[NROFATTACKS]; /* winning candidates for resistance improvement */
2742 int winners = 0; /* number of winners */
2743 int i; /* index */
2744
2745 /* let's make sure and doublecheck the parameters */
2746 if (meal->type != FLESH || !op->is_dragon ())
2747 return 0;
2748
2749 /* now grab the 'dragon_skin'- and 'dragon_ability'-forces
2750 from the player's inventory */
2751 for (tmp = op->inv; tmp; tmp = tmp->below)
2752 if (tmp->type == FORCE)
2753 if (tmp->arch->archname == shstr_dragon_skin_force)
2754 skin = tmp;
2755 else if (tmp->arch->archname == shstr_dragon_ability_force)
2756 abil = tmp;
2757
2758 /* if either skin or ability are missing, this is an old player
2759 which is not to be considered a dragon -> bail out */
2760 if (skin == NULL || abil == NULL)
2761 return 0;
2762
2763 /* now start by filling stomache and health, according to food-value */
2764 if ((MAX_FOOD - op->stats.food) < meal->stats.food)
2765 op->stats.hp += (MAX_FOOD - op->stats.food) / 50;
2766 else
2767 op->stats.hp += meal->stats.food / 50;
2768
2769 min_it (op->stats.hp, op->stats.maxhp);
2770 op->stats.food = min (MAX_FOOD, op->stats.food + meal->stats.food);
2771
2772 /*LOG(llevDebug, "-> player: %d, flesh: %d\n", op->level, meal->level); */
2773
2774 /* on to the interesting part: chances for adding resistance */
2775 for (i = 0; i < NROFATTACKS; i++)
2776 {
2777 if (meal->resist[i] > 0 && atnr_is_dragon_enabled (i))
2778 {
2779 /* got positive resistance, now calculate improvement chance (0-100) */
2780
2781 /* this bonus makes resistance increase easier at lower levels */
2782 bonus = (settings.max_level - op->level) * 30. / ((double) settings.max_level);
2783 if (i == abil->stats.exp)
2784 bonus += 5; /* additional bonus for resistance of ability-focus */
2785
2786 /* monster bonus increases with level, because high-level
2787 flesh is too rare */
2788 mbonus = op->level * 20. / ((double) settings.max_level);
2789
2790 chance = (((double)min (op->level + bonus, meal->level + bonus + mbonus)) * 100. /
2791 ((double)settings.max_level)) - skin->resist[i];
2792
2793 if (chance >= 0.)
2794 chance += 1.;
2795 else
2796 chance = (chance < -12) ? 0. : 1. / pow (2., -chance);
2797
2798 /* chance is proportional to amount of resistance (max. 50) */
2799 chance *= ((double)(min (meal->resist[i], 50))) / 50.;
2800
2801 /* doubled chance for resistance of ability-focus */
2802 if (i == abil->stats.exp)
2803 chance = min (100., chance * 2.);
2804
2805 /* now make the throw and save all winners (Don't insert luck bonus here!) */
2806 if (rndm (10000) < (unsigned int)(chance * 100))
2807 {
2808 atnr_winner[winners] = i;
2809 winners++;
2810 }
2811
2812 if (chance >= 0.01)
2813 totalchance *= 1 - chance / 100;
2814
2815 /*LOG(llevDebug, " %s: bonus %.1f, chance %.1f\n", attacks[i], bonus, chance); */
2816 }
2817 }
2818
2819 /* inverse totalchance as until now we have the failure-chance */
2820 totalchance = 100 - totalchance * 100;
2821
2822 /* print message according to totalchance */
2823 const char *buf;
2824 if (totalchance > 50.)
2825 buf = format ("Hmm! The %s tasted delicious!", &meal->name);
2826 else if (totalchance > 10.)
2827 buf = format ("The %s tasted very good.", &meal->name);
2828 else if (totalchance > 1.)
2829 buf = format ("The %s tasted good.", &meal->name);
2830 else if (totalchance > 0.1)
2831 buf = format ("The %s tasted bland.", &meal->name);
2832 else if (totalchance >= 0.01)
2833 buf = format ("The %s had a boring taste.", &meal->name);
2834 else if (meal->last_eat > 0 && atnr_is_dragon_enabled (meal->last_eat))
2835 buf = format ("The %s tasted strange.", &meal->name);
2836 else
2837 buf = format ("The %s had no taste.", &meal->name);
2838
2839 op->statusmsg (buf);
2840
2841 /* now choose a winner if we have any */
2842 i = -1;
2843 if (winners > 0)
2844 i = atnr_winner [rndm (winners)];
2845
2846 if (i >= 0 && i < NROFATTACKS && skin->resist[i] < 95)
2847 {
2848 /* resistance increased! */
2849 skin->resist[i]++;
2850 op->update_stats ();
2851
2852 op->statusmsg (format ("Your skin is now more resistant to %s!", change_resist_msg[i]));
2853 }
2854
2855 /* if this flesh contains a new ability focus, we mark it
2856 into the ability_force and it will take effect on next level */
2857 if (meal->last_eat > 0 && atnr_is_dragon_enabled (meal->last_eat) && meal->last_eat != abil->last_eat)
2858 {
2859 abil->last_eat = meal->last_eat; /* write: last_eat <new attnr focus> */
2860
2861 if (meal->last_eat != abil->stats.exp)
2862 op->statusmsg (format (
2863 "Your metabolism prepares to focus on %s!\n"
2864 "The change will happen at level %d.",
2865 change_resist_msg[meal->last_eat],
2866 abil->level + 1
2867 ));
2868 else
2869 {
2870 op->statusmsg (format ("Your metabolism will continue to focus on %s.", change_resist_msg[meal->last_eat]));
2871 abil->last_eat = 0;
2872 }
2873 }
2874
2875 return 1;
2876}
2877
2878/**
2879 * op eats food.
2880 * If player, takes care of messages and dragon special food.
2881 */
2882static void
2883apply_food (object *op, object *tmp)
2884{
2885 int capacity_remaining;
2886
2887 if (op->type != PLAYER)
2888 op->stats.hp = op->stats.maxhp;
2889 else
2890 {
2891 /* check if this is a dragon (player), eating some flesh */
2892 if (tmp->type == FLESH && op->is_dragon () && dragon_eat_flesh (op, tmp))
2893 ;
2894 else
2895 {
2896 /* usual case - no dragon meal: */
2897 if (op->stats.food + tmp->stats.food > MAX_FOOD)
2898 {
2899 if (tmp->type == FOOD || tmp->type == FLESH)
2900 op->failmsg ("You feel full, but what a waste of food!");
2901 else
2902 op->statusmsg ("Most of the drink goes down your face not your throat!");
2903 }
2904
2905 tmp->play_sound (
2906 tmp->sound
2907 ? tmp->sound
2908 : tmp->type == DRINK
2909 ? sound_find ("eat_drink")
2910 : sound_find ("eat_food")
2911 );
2912
2913 if (!QUERY_FLAG (tmp, FLAG_CURSED))
2914 {
2915 const char *buf;
2916
2917 if (!op->is_dragon ())
2918 {
2919 /* eating message for normal players */
2920 if (tmp->type == DRINK)
2921 buf = format ("Ahhh...that %s tasted good.", &tmp->name);
2922 else
2923 buf = format ("The %s tasted %s", &tmp->name, tmp->type == FLESH ? "terrible!" : "good.");
2924 }
2925 else
2926 /* eating message for dragon players */
2927 buf = format ("The %s tasted terrible!", &tmp->name);
2928
2929 op->statusmsg (buf);
2930
2931 capacity_remaining = MAX_FOOD - op->stats.food;
2932 op->stats.food += tmp->stats.food;
2933 if (capacity_remaining < tmp->stats.food)
2934 op->stats.hp += capacity_remaining / 50;
2935 else
2936 op->stats.hp += tmp->stats.food / 50;
2937
2938 min_it (op->stats.hp, op->stats.maxhp);
2939 min_it (op->stats.food, MAX_FOOD);
2940 }
2941
2942 /* special food hack -b.t. */
2943 if (tmp->title || QUERY_FLAG (tmp, FLAG_CURSED))
2944 eat_special_food (op, tmp);
2945 }
2946 }
2947
2948 handle_apply_yield (tmp);
2949 tmp->decrease ();
2950}
2951
2952/**
2953 * Handles applying an improve armor scroll.
2954 * Does some sanity checks, then calls improve_armour.
2955 */
2956static void
2957apply_armour_improver (object *op, object *tmp)
2958{
2959 object *armor;
2960
2961 if (!QUERY_FLAG (op, FLAG_WIZCAST) && (get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_NO_MAGIC))
2962 {
2963 op->failmsg ("Something blocks the magic of the scroll. H<This area prevents magic effects.>");
2964 return;
2965 }
2966
2967 armor = find_marked_object (op);
2968
2969 if (!armor)
2970 {
2971 op->failmsg ("You need to mark an armor object. Use the right mouse button popup or the mark command to do this.");
2972 return;
2973 }
2974
2975 if (armor->type != ARMOUR
2976 && armor->type != CLOAK
2977 && armor->type != BOOTS && armor->type != GLOVES && armor->type != BRACERS && armor->type != SHIELD && armor->type != HELMET)
2978 {
2979 op->failmsg ("Your marked item is not armour!\n");
2980 return;
2981 }
2982
2983 op->statusmsg ("Applying armour enchantment.");
2984 improve_armour (op, tmp, armor);
2985}
2986
2987void
2988apply_poison (object *op, object *tmp)
2989{
2990 // need to do it now when it is still on the map
2991 handle_apply_yield (tmp);
2992
2993 object *poison = tmp->split (1);
2994
2995 if (op->type == PLAYER)
2996 {
2997 op->contr->play_sound (sound_find ("drink_poison"));
2998 op->failmsg ("Yech! That tasted poisonous!");
2999 op->contr->killer = poison;
3000 }
3001
3002 if (poison->stats.hp > 0)
3003 {
3004 LOG (llevDebug, "Trying to poison player/monster for %d hp\n", poison->stats.hp);
3005 hit_player (op, poison->stats.hp, tmp, AT_POISON, 1);
3006 }
3007
3008 op->stats.food -= op->stats.food / 4;
3009 poison->destroy ();
3010}
3011
3012/**
3013 * This function will try to apply a lighter and in case no lighter
3014 * is specified it will try to find a lighter in the players inventory,
3015 * and inform him about this requirement.
3016 *
3017 * who - the player
3018 * op - the item we want to light
3019 * lighter - the lighter or 0 if a lighter has yet to be found
3020 */
3021static object *
3022auto_apply_lighter (object *who, object *op, object *lighter)
3023{
3024 if (lighter == 0)
3025 {
3026 for (object *tmp = who->inv; tmp; tmp = tmp->below)
3027 {
3028 if (tmp->type == LIGHTER)
3029 {
3030 lighter = tmp;
3031 break;
3032 }
3033 }
3034
3035 if (!lighter)
3036 {
3037 who->failmsgf (
3038 "You can't light up the %s with your bare hands! "
3039 "H<You need a lighter in your inventory, for example a flint and steel.>",
3040 &op->name
3041 );
3042 return 0;
3043 }
3044 }
3045
3046 // last_eat == 0 means the lighter is not being used up!
3047 if (lighter->last_eat && lighter->stats.food)
3048 {
3049 /* lighter gets used up */
3050 lighter = lighter->split ();
3051 lighter->stats.food--;
3052 who->insert (lighter);
3053 }
3054 else if (lighter->last_eat)
3055 {
3056 /* no charges left in lighter */
3057 who->failmsgf (
3058 "You attempt to light the %s with a used up %s.",
3059 &op->name, &lighter->name
3060 );
3061 return 0;
3062 }
3063
3064 return lighter;
3065}
3066
3067/**
3068 * Designed primarily to light torches/lanterns/etc.
3069 * Also burns up burnable material too. First object in the inventory is
3070 * the selected object to "burn". -b.t.
3071 */
3072static void
3073apply_lighter (object *who, object *lighter)
3074{
3075 object *item;
3076 int is_player_env = 0;
3077
3078 item = find_marked_object (who);
3079 if (item)
3080 {
3081 if (!auto_apply_lighter (who, item, lighter))
3082 return;
3083
3084 /* Perhaps we should split what we are trying to light on fire?
3085 * I can't see many times when you would want to light multiple
3086 * objects at once.
3087 */
3088
3089 save_throw_object (item, AT_FIRE, who);
3090
3091 if (item->destroyed ()
3092 || ((item->type == LAMP || item->type == TORCH)
3093 && item->glow_radius > 0))
3094 who->statusmsg (format (
3095 "You light the %s with the %s.",
3096 &item->name, &lighter->name
3097 ));
3098 else
3099 who->failmsgf (
3100 "You attempt to light the %s with the %s and fail.",
3101 &item->name, &lighter->name
3102 );
3103 }
3104 else
3105 who->failmsg ("You need to mark a lightable object.");
3106}
3107
3108/**
3109 * This function generates a cursed effect for cursed lamps and torches.
3110 */
3111static void
3112player_apply_lamp_cursed_effect (object *who, object *op)
3113{
3114 if (op->level)
3115 {
3116 who->failmsgf (
3117 "The %s was cursed, it explodes in a big fireball!",
3118 &op->name
3119 );
3120 create_exploding_ball_at (who, op->level);
3121 }
3122 else
3123 {
3124 who->failmsgf (
3125 "The %s was cursed, it crumbles to dust, at least it didn't explode.!",
3126 &op->name
3127 );
3128 }
3129
3130 op->destroy ();
3131}
3132
3133/**
3134 * Apply for players and lamps
3135 *
3136 * who - the player
3137 * op - the lamp
3138 */
3139static void
3140player_apply_lamp (object *who, object *op)
3141{
3142 bool switch_on = op->glow_radius ? false : true;
3143
3144 if (switch_on)
3145 {
3146 object *lighter = 0;
3147
3148 if (op->flag [FLAG_IS_LIGHTABLE]
3149 && !(lighter = auto_apply_lighter (who, op, 0)))
3150 return;
3151
3152 if (op->stats.food < 1)
3153 {
3154 if (op->type == LAMP)
3155 who->failmsgf (
3156 "The %s is out of fuel! "
3157 "H<Lamps and similar items need fuel. They cannot be refilled.>",
3158 &op->name
3159 );
3160 else
3161 who->failmsgf (
3162 "The %s is burnt out! "
3163 "H<Torches and similar items burn out and become worthless.>",
3164 &op->name
3165 );
3166 return;
3167 }
3168
3169 if (op->flag [FLAG_CURSED])
3170 {
3171 player_apply_lamp_cursed_effect (who, op);
3172 return;
3173 }
3174
3175 if (lighter)
3176 who->statusmsg (format (
3177 "You light up the %s with the %s.", &op->name, &lighter->name));
3178 else
3179 who->statusmsg (format ("You light up the %s.", &op->name));
3180 }
3181 else
3182 {
3183 if (op->flag [FLAG_CURSED])
3184 {
3185 player_apply_lamp_cursed_effect (who, op);
3186 return;
3187 }
3188
3189 if (op->type == TORCH)
3190 {
3191 if (!op->flag [FLAG_IS_LIGHTABLE])
3192 {
3193 who->statusmsg (format (
3194 "You put out the %s. "
3195 "H<The %s can't be used anymore, as it can't be lighted up again.>",
3196 &op->name, &op->name));
3197 }
3198 else
3199 who->statusmsg (format (
3200 "You put out the %s."
3201 "H<Torches wear out if you put them out.>",
3202 &op->name));
3203 }
3204 else
3205 who->statusmsg (format ("You turn off the %s.", &op->name));
3206 }
3207
3208 apply_lamp (op, switch_on);
3209}
3210
3211void get_animation_from_arch (object *op, arch_ptr a)
3212{
3213 op->animation_id = a->animation_id;
3214 op->flag [FLAG_IS_TURNABLE] = a->flag [FLAG_IS_TURNABLE];
3215 op->flag [FLAG_ANIMATE] = a->flag [FLAG_ANIMATE];
3216 op->anim_speed = a->anim_speed;
3217 op->last_anim = 0;
3218 op->state = 0;
3219 op->face = a->face;
3220
3221 if (NUM_ANIMATIONS(op) > 1)
3222 {
3223 SET_ANIMATION(op, 0);
3224 animate_object (op, op->direction);
3225 }
3226 else
3227 update_object (op, UP_OBJ_FACE);
3228}
3229
3230/**
3231 * Apply for LAMPs and TORCHes.
3232 *
3233 * op - the lamp
3234 * switch_on - a flag which says whether the lamp should be switched on or off
3235 */
3236void apply_lamp (object *op, bool switch_on)
3237{
3238 op->set_glow_radius (switch_on ? op->range : 0);
3239 op->set_speed (switch_on ? op->arch->speed : 0);
3240
3241 // torches wear out if you put them out
3242 if (op->type == TORCH && !switch_on)
3243 {
3244 if (op->flag [FLAG_IS_LIGHTABLE])
3245 {
3246 op->stats.food -= (double) op->arch->stats.food / 15;
3247 if (op->stats.food < 0)
3248 op->stats.food = 0;
3249 }
3250 else
3251 op->stats.food = 0;
3252 }
3253
3254 // lamps and torched get worthless when used up
3255 if (op->stats.food <= 0)
3256 op->value = 0;
3257
3258 // FIXME: This is a hack to make the more sane torches and lamps
3259 // still animated ;-/
3260 if (op->other_arch)
3261 get_animation_from_arch (op, switch_on ? op->other_arch : op->arch);
3262
3263 if (object *pl = op->visible_to ())
3264 esrv_update_item (UPD_ANIM | UPD_FACE | UPD_NAME, pl, op);
3265}
3266
3267/**
3268 * This handles items of type 'transformer'.
3269 * Basically those items, used with a marked item, transform both items into something
3270 * else.
3271 * "Transformer" item has food decreased by 1, removed if 0 (0 at start means illimited)..
3272 * Change information is contained in the 'slaying' field of the marked item.
3273 * The format is as follow: transformer:[number ]yield[;transformer:...].
3274 * This way an item can be transformed in many things, and/or many objects.
3275 * The 'slaying' field for transformer is used as verb for the action.
3276 */
3277static void
3278apply_item_transformer (object *pl, object *transformer)
3279{
3280 object *marked;
3281 object *new_item;
3282 const char *find;
3283 char *separator;
3284 int yield;
3285 char got[MAX_BUF];
3286 int len;
3287
3288 if (!pl || !transformer)
3289 return;
3290
3291 marked = find_marked_object (pl);
3292
3293 if (!marked)
3294 {
3295 pl->failmsgf ("Use the %s with what item?", query_name (transformer));
3296 return;
3297 }
3298
3299 if (!marked->slaying)
3300 {
3301 pl->failmsgf ("You can't use the %s with your %s!", query_name (transformer), query_name (marked));
3302 return;
3303 }
3304
3305 /* check whether they are compatible or not */
3306 find = strstr (&marked->slaying, transformer->arch->archname);
3307 if (!find || (*(find + strlen (transformer->arch->archname)) != ':'))
3308 {
3309 pl->failmsgf ("You can't use the %s with your %s!", query_name (transformer), query_name (marked));
3310 return;
3311 }
3312
3313 find += strlen (transformer->arch->archname) + 1;
3314 /* Item can be used, now find how many and what it yields */
3315 if (isdigit (*(find)))
3316 {
3317 yield = atoi (find);
3318 if (yield < 1)
3319 {
3320 LOG (llevDebug, "apply_item_transformer: item %s has slaying-yield %d.", query_base_name (marked, 0), yield);
3321 yield = 1;
3322 }
3323 }
3324 else
3325 yield = 1;
3326
3327 while (isdigit (*find))
3328 find++;
3329
3330 while (*find == ' ')
3331 find++;
3332
3333 memset (got, 0, MAX_BUF);
3334
3335 if ((separator = (char *) strchr (find, ';')))
3336 len = separator - find;
3337 else
3338 len = strlen (find);
3339
3340 min_it (len, MAX_BUF - 1);
3341
3342 strcpy (got, find);
3343 got[len] = '\0';
3344
3345 /* Now create new item, remove used ones when required. */
3346 new_item = get_archetype (got);
3347 if (!new_item)
3348 {
3349 pl->failmsgf ("This %s is strange, better to not use it.", query_base_name (marked, 0));
3350 return;
3351 }
3352
3353 new_item->nrof = yield;
3354
3355 pl->statusmsg (format ("You %s the %s.", &transformer->slaying, query_base_name (marked, 0)));
3356
3357 pl->insert (new_item);
3358 /* Eat up one item */
3359 marked->decrease ();
3360
3361 /* Eat one transformer if needed */
3362 if (transformer->stats.food)
3363 if (--transformer->stats.food == 0)
3364 transformer->decrease ();
3365}
3366
3367/**
3368 * Main apply handler.
3369 *
3370 * Checks for unpaid items before applying.
3371 *
3372 * Return value is currently not used
3373 *
3374 * who is the object that is causing object to be applied, op is the object
3375 * being applied.
3376 *
3377 * aflag is special (always apply/unapply) flags. Nothing is done with
3378 * them in this function - they are passed to apply_special
3379 */
3380static bool
3381manual_apply (object *who, object *op, int aflag)
3382{
3383 op = op->head_ ();
3384
3385 if (op->flag [FLAG_UNPAID] && !op->flag [FLAG_APPLIED])
3386 {
3387 if (who->contr)
3388 {
3389 examine (who, op);
3390 //who->failmsg ("You should pay for it first! H<You cannot use items marked as unpaid.>");//TODO remove
3391 return 1;
3392 }
3393 else
3394 return 0; /* monsters just skip unpaid items */
3395 }
3396
3397 if (INVOKE_OBJECT (APPLY, op, ARG_OBJECT (who)))
3398 return RESULT_INT (0);
3399 else if (apply_types_inv_only [op->type])
3400 {
3401 // special item, using slot system, needs to be in inv
3402 if (op->env == who)
3403 return apply_special (who, op, aflag);
3404
3405 who->failmsgf ("You must get it first! H<You can only apply the %s if it is in your inventory.>\n", query_name (op));
3406 }
3407 else if (!who->contr && apply_types_player_only [op->type])
3408 return 0; // monsters shouldn't try to apply player-only stuff
3409 else if (apply_types [op->type])
3410 {
3411 // ordinary stuff, may be on the floor
3412 switch (op->type)
3413 {
3414 case T_HANDLE:
3415 who->play_sound (sound_find ("turn_handle"));
3416 who->statusmsg ("You turn the handle.");
3417 op->value = op->value ? 0 : 1;
3418 SET_ANIMATION (op, op->value);
3419 update_object (op, UP_OBJ_FACE);
3420 push_button (op, who);
3421 break;
3422
3423 case TRIGGER:
3424 if (check_trigger (op, who, who))
3425 {
3426 who->statusmsg ("You turn the handle.");
3427 who->play_sound (sound_find ("turn_handle"));
3428 }
3429 else
3430 who->failmsg ("The handle doesn't move.");
3431
3432 break;
3433
3434 case EXIT:
3435 if (!EXIT_PATH (op))
3436 who->failmsgf ("The %s is closed. H<And will stay closed, until somebody fires up the map editor and adds it.>", query_name (op));
3437 else
3438 {
3439 /* Don't display messages for random maps. */
3440 if (op->msg && EXIT_PATH (op) != shstr_random_map_exit)
3441 who->statusmsg (op->msg, NDI_NAVY);
3442
3443 who->enter_exit (op);
3444 }
3445
3446 break;
3447
3448 case INSCRIBABLE:
3449 who->statusmsg (op->msg);
3450 // maybe show a spell menu to chose from or something like that
3451 break;
3452
3453 case SIGN:
3454 apply_sign (who, op, 0);
3455 break;
3456
3457 case BOOK:
3458 apply_book (who, op);
3459 break;
3460
3461 case SKILLSCROLL:
3462 apply_skillscroll (who, op);
3463 break;
3464
3465 case SPELLBOOK:
3466 apply_spellbook (who, op);
3467 break;
3468
3469 case SCROLL:
3470 apply_scroll (who, op, 0);
3471 break;
3472
3473 case POTION:
3474 apply_potion (who, op);
3475 break;
3476
3477 /* Eneq(@csd.uu.se): Handle apply on containers. */
3478 //TODO: remove, as it is unsed?
3479 case CLOSE_CON:
3480 apply_container (who, op->env);
3481 break;
3482
3483 case CONTAINER:
3484 apply_container (who, op);
3485 break;
3486
3487 case TREASURE:
3488 apply_treasure (who, op);
3489 break;
3490
3491 case LAMP:
3492 case TORCH:
3493 player_apply_lamp (who, op);
3494 break;
3495
3496 case DRINK:
3497 case FOOD:
3498 case FLESH:
3499 apply_food (who, op);
3500 break;
3501
3502 case POISON:
3503 apply_poison (who, op);
3504 break;
3505
3506 case SAVEBED:
3507 break;
3508
3509 case ARMOUR_IMPROVER:
3510 apply_armour_improver (who, op);
3511 break;
3512
3513 case WEAPON_IMPROVER:
3514 check_improve_weapon (who, op);
3515 break;
3516
3517 case CLOCK:
3518 {
3519 char buf[MAX_BUF];
3520 timeofday_t tod;
3521
3522 get_tod (&tod);
3523 who->play_sound (sound_find ("sound_clock"));
3524 who->statusmsg (format (
3525 "It is %d minute%s past %d o'clock %s",
3526 tod.minute + 1, ((tod.minute + 1 < 2) ? "" : "s"),
3527 ((tod.hour % 14 == 0) ? 14 : ((tod.hour) % 14)), ((tod.hour >= 14) ? "pm" : "am")
3528 ));
3529 }
3530 break;
3531
3532 case MENU:
3533 shop_listing (op, who);
3534 break;
3535
3536 case POWER_CRYSTAL:
3537 apply_power_crystal (who, op); /* see egoitem.c */
3538 break;
3539
3540 case LIGHTER: /* for lighting torches/lanterns/etc */
3541 apply_lighter (who, op);
3542 break;
3543
3544 case ITEM_TRANSFORMER:
3545 apply_item_transformer (who, op);
3546 break;
3547 }
3548
3549 return 1;
3550 }
3551 else
3552 {
3553 who->statusmsg (format ("I don't know how to apply the %s.", query_name (op)));
3554 return 0;
3555 }
3556}
3557
3558/**
3559 * player_apply_below attempts to apply the object 'below' the player.
3560 * If the player has an open container, we use that for below, otherwise
3561 * we use the ground.
3562 */
3563void
3564player_apply_below (object *pl)
3565{
3566 object *top = pl->container_ () ? pl->container_ ()->inv : pl->below;
3567
3568 /* If using a container, set the starting item to be the top
3569 * item in the container. Otherwise, use the map.
3570 */
3571
3572 // first try to apply "applyables"
3573 for (object *tmp = top; tmp; tmp = tmp->below)
3574 if (!tmp->invisible && apply_types [tmp->type])
3575 {
3576 // If it is visible, player can apply it.
3577 pl->apply (tmp);
3578 return;
3579 }
3580
3581 while (top && top->invisible)
3582 top = top->below;
3583
3584 if (!top || top->flag [FLAG_IS_FLOOR])
3585 pl->failmsg ("You inspect this space, but find no way to apply anything. "
3586 "H<There is nothing here that you can apply.>");
3587 else
3588 // next, try to explain the topmost object
3589 switch (top->type)
3590 {
3591 // TODO: all this should move to examine
3592 case ALTAR:
3593 case IDENTIFY_ALTAR:
3594 case TRIGGER_ALTAR:
3595 case CONVERTER:
3596 //case TRIGGER_PEDESTAL:
3597 pl->failmsgf (
3598 "You see no obvious mechanism on the %s."
3599 "H<You have to drop one or more specific items here.>",
3600 query_short_name (top)
3601 );
3602 break;
3603
3604 case BUTTON:
3605 case TRIGGER_BUTTON:
3606 pl->failmsgf (
3607 "The %s looks as if you could activate it with somehting heavy. "
3608 "H<You must put enough items here to activate it.>",
3609 query_short_name (top)
3610 );
3611 break;
3612
3613 default:
3614 examine (pl, top);
3615 break;
3616 }
3617}
3618
3619// saner interface, returns successful status
3620bool
3621object::apply (object *ob, int aflags)
3622{
3623 if (!ob) // simplifies a lot of callers
3624 return true;
3625
3626 if (contr)
3627 {
3628 if (!ob->env && (move_type & MOVE_FLYING))
3629 {
3630 /* player is flying and applying object not in inventory */
3631 if (!flag [FLAG_WIZ] && !(ob->move_type & MOVE_FLYING))
3632 {
3633 failmsg ("But you are floating high above the ground! "
3634 "H<You have to stop levitating first, if you can, either by using your levitation skill, "
3635 "or waiting till the levitation effect wears off.>");
3636 return 0;
3637 }
3638 }
3639
3640 contr->last_used = ob;
3641 }
3642
3643 bool want_apply =
3644 aflags & AP_APPLY ? true
3645 : aflags & AP_UNAPPLY ? false
3646 : !ob->flag [FLAG_APPLIED]; // AP_TOGGLE
3647
3648 object_ptr *slot = 0;
3649
3650 // detect the slot, if this is a player
3651 if (contr && !(aflags & AP_NO_SLOT))
3652 {
3653 object *oslot;
3654
3655 switch (ob->type)
3656 {
3657 case WEAPON:
3658 slot = &contr->combat_ob;
3659 oslot = contr->ranged_ob;
3660 break;
3661
3662 case BOW:
3663 case RANGED:
3664 case SPELL:
3665 case WAND:
3666 case ROD:
3667 case HORN:
3668 case BUILDER:
3669 slot = &contr->ranged_ob;
3670 oslot = contr->combat_ob;
3671 break;
3672
3673 // oh, the humanity
3674 case SKILL:
3675 if (aflags & AP_NO_SLOT)
3676 break;
3677
3678 if (skill_flags [ob->subtype] & SF_NEED_ITEM)
3679 break;
3680
3681 if (skill_flags [ob->subtype] & SF_COMBAT)
3682 {
3683 slot = &contr->combat_ob;
3684 oslot = contr->ranged_ob;
3685 }
3686 else if (skill_flags [ob->subtype] & SF_RANGED)
3687 {
3688 slot = &contr->ranged_ob;
3689 oslot = contr->combat_ob;
3690 }
3691
3692 break;
3693 }
3694
3695 // now handle slot exclusions
3696 if (slot)
3697 {
3698 // only one slot can be active
3699 if (want_apply)
3700 {
3701 // clear slot unless we are in it already
3702 if (*slot != ob)
3703 apply (*slot, AP_UNAPPLY);
3704
3705 // unapply other slot, because we want to become active
3706 apply (oslot, AP_UNAPPLY);
3707 }
3708
3709 // clear item from slot if applied
3710 if (!want_apply && current_weapon == ob)
3711 current_weapon = 0;
3712 }
3713 }
3714
3715 if (ob->flag [FLAG_APPLIED] != want_apply)
3716 manual_apply (this, ob, aflags);
3717
3718 if (ob->flag [FLAG_APPLIED] != want_apply)
3719 return false;
3720
3721 if (slot && want_apply)
3722 current_weapon = *slot = ob;
3723
3724 return true;
3686} 3725}
3687 3726
3688/** 3727/**
3689 * Map was just loaded, handle op's initialisation. 3728 * Map was just loaded, handle op's initialisation.
3690 * 3729 *

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