1 |
/* |
2 |
CrossFire, A Multiplayer game for X-windows |
3 |
|
4 |
Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 |
Copyright (C) 1992 Frank Tore Johansen |
6 |
|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
10 |
(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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|
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The author can be reached via e-mail to <crossfire@schmorp.de> |
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*/ |
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|
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/** |
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* \file |
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* Client/server logic. |
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* |
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* \date 2003-12-02 |
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* |
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* This containes item logic for client/server. It doesn't contain |
31 |
* the actual commands that send the data, but does contain |
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* the logic for what items should be sent. |
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*/ |
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|
35 |
#include <global.h> |
36 |
#include <object.h> /* LOOK_OBJ */ |
37 |
#include <sproto.h> |
38 |
|
39 |
/** This is the maximum number of bytes we expect any one item to take up */ |
40 |
#define MAXITEMLEN 300 |
41 |
|
42 |
/******************************************************************************* |
43 |
* |
44 |
* Functions related to sending object data to the client. |
45 |
* |
46 |
******************************************************************************/ |
47 |
|
48 |
/** |
49 |
* This is a similar to query_name, but returns flags |
50 |
* to be sent to client. |
51 |
*/ |
52 |
unsigned int |
53 |
query_flags (object *op) |
54 |
{ |
55 |
unsigned int flags = 0; |
56 |
|
57 |
if (QUERY_FLAG (op, FLAG_APPLIED)) |
58 |
{ |
59 |
switch (op->type) |
60 |
{ |
61 |
case BOW: |
62 |
case WAND: |
63 |
case ROD: |
64 |
case HORN: |
65 |
flags = a_readied; |
66 |
break; |
67 |
case WEAPON: |
68 |
flags = a_wielded; |
69 |
break; |
70 |
case SKILL: |
71 |
case ARMOUR: |
72 |
case HELMET: |
73 |
case SHIELD: |
74 |
case RING: |
75 |
case BOOTS: |
76 |
case GLOVES: |
77 |
case AMULET: |
78 |
case GIRDLE: |
79 |
case BRACERS: |
80 |
case CLOAK: |
81 |
flags = a_worn; |
82 |
break; |
83 |
case CONTAINER: |
84 |
flags = a_active; |
85 |
break; |
86 |
default: |
87 |
flags = a_applied; |
88 |
break; |
89 |
} |
90 |
} |
91 |
|
92 |
if (op->type == CONTAINER && ((op->env && op->env->container == op) || (!op->env && QUERY_FLAG (op, FLAG_APPLIED)))) |
93 |
flags |= F_OPEN; |
94 |
|
95 |
if (QUERY_FLAG (op, FLAG_KNOWN_CURSED)) |
96 |
{ |
97 |
if (QUERY_FLAG (op, FLAG_DAMNED)) |
98 |
flags |= F_DAMNED; |
99 |
else if (QUERY_FLAG (op, FLAG_CURSED)) |
100 |
flags |= F_CURSED; |
101 |
} |
102 |
|
103 |
if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED)) |
104 |
flags |= F_MAGIC; |
105 |
if (QUERY_FLAG (op, FLAG_UNPAID)) |
106 |
flags |= F_UNPAID; |
107 |
if (QUERY_FLAG (op, FLAG_INV_LOCKED)) |
108 |
flags |= F_LOCKED; |
109 |
|
110 |
return flags; |
111 |
} |
112 |
|
113 |
/* Used in the send_look to put object head into packet |
114 |
* sl for socket ns. Need socket to know if we need to send |
115 |
* animation of face to the client. |
116 |
*/ |
117 |
static void |
118 |
add_object_to_socklist (client &ns, packet &sl, object *head) |
119 |
{ |
120 |
int flags, len, anim_speed; |
121 |
char item_n[MAX_BUF]; |
122 |
const char *item_p; |
123 |
|
124 |
flags = query_flags (head); |
125 |
if (QUERY_FLAG (head, FLAG_NO_PICK)) |
126 |
flags |= F_NOPICK; |
127 |
|
128 |
if (!(ns.faces_sent[head->face->number] & NS_FACESENT_FACE)) |
129 |
esrv_send_face (&ns, head->face->number, 0); |
130 |
|
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if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id]) |
132 |
esrv_send_animation (&ns, head->animation_id); |
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|
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sl << uint32 (head->count) |
135 |
<< uint32 (flags) |
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<< uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : WEIGHT (head)) |
137 |
<< uint32 (head->face->number); |
138 |
|
139 |
if (!head->custom_name) |
140 |
{ |
141 |
strncpy (item_n, query_base_name (head, 0), 127); |
142 |
item_n[127] = 0; |
143 |
len = strlen (item_n); |
144 |
item_p = query_base_name (head, 1); |
145 |
} |
146 |
else |
147 |
{ |
148 |
strncpy (item_n, head->custom_name, 127); |
149 |
item_n[127] = 0; |
150 |
len = strlen (item_n); |
151 |
item_p = head->custom_name; |
152 |
} |
153 |
|
154 |
strncpy (item_n + len + 1, item_p, 127); |
155 |
item_n[254] = 0; |
156 |
len += strlen (item_n + 1 + len) + 1; |
157 |
|
158 |
sl << data8 (item_n, len) |
159 |
<< uint16 (head->animation_id); |
160 |
|
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anim_speed = 0; |
162 |
if (QUERY_FLAG (head, FLAG_ANIMATE)) |
163 |
{ |
164 |
if (head->anim_speed) |
165 |
anim_speed = head->anim_speed; |
166 |
else |
167 |
{ |
168 |
if (FABS (head->speed) < 0.001) |
169 |
anim_speed = 255; |
170 |
else if (FABS (head->speed) >= 1.0) |
171 |
anim_speed = 1; |
172 |
else |
173 |
anim_speed = (int) (1.0 / FABS (head->speed)); |
174 |
} |
175 |
|
176 |
if (anim_speed > 255) |
177 |
anim_speed = 255; |
178 |
} |
179 |
|
180 |
sl << uint8 (anim_speed) |
181 |
<< uint32 (head->nrof); |
182 |
|
183 |
if (ns.itemcmd == 2) |
184 |
sl << uint16 (head->client_type); |
185 |
|
186 |
SET_FLAG (head, FLAG_CLIENT_SENT); |
187 |
} |
188 |
|
189 |
|
190 |
/** |
191 |
* Send the look window. Don't need to do animations here |
192 |
* This sends all the faces to the client, not just updates. This is |
193 |
* because object ordering would otherwise be inconsistent. |
194 |
*/ |
195 |
void |
196 |
esrv_draw_look (object *pl) |
197 |
{ |
198 |
object *tmp, *last; |
199 |
int got_one = 0, start_look = 0, end_look = 0; |
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char buf[MAX_BUF]; |
201 |
|
202 |
if (!pl->contr->socket->update_look) |
203 |
{ |
204 |
LOG (llevDebug, "esrv_draw_look called when update_look was not set\n"); |
205 |
return; |
206 |
} |
207 |
else |
208 |
pl->contr->socket->update_look = 0; |
209 |
|
210 |
if (QUERY_FLAG (pl, FLAG_REMOVED) |
211 |
|| !pl->map |
212 |
|| pl->map->in_memory != MAP_IN_MEMORY |
213 |
|| out_of_map (pl->map, pl->x, pl->y)) |
214 |
return; |
215 |
|
216 |
for (tmp = get_map_ob (pl->map, pl->x, pl->y); tmp && tmp->above; tmp = tmp->above) |
217 |
; |
218 |
|
219 |
pl->contr->socket->send_packet ("delinv 0"); |
220 |
|
221 |
packet sl; |
222 |
sl.printf ("item%d ", pl->contr->socket->itemcmd); |
223 |
|
224 |
sl << uint32 (0); |
225 |
|
226 |
if (!(pl->contr->socket->faces_sent[empty_face->number] & NS_FACESENT_FACE)) |
227 |
esrv_send_face (pl->contr->socket, empty_face->number, 0); |
228 |
|
229 |
if (pl->contr->socket->look_position) |
230 |
{ |
231 |
char buf[80]; |
232 |
snprintf (buf, 80, "Apply this to see %d previous items", FLOORBOX_PAGESIZE); |
233 |
|
234 |
sl << uint32 (0x80000000 | (pl->contr->socket->look_position - FLOORBOX_PAGESIZE)) |
235 |
<< uint32 (0) |
236 |
<< sint32 (-1) |
237 |
<< uint32 (empty_face->number) |
238 |
<< data8 (buf) |
239 |
<< uint16 (0) |
240 |
<< uint8 (0) |
241 |
<< uint32 (0); |
242 |
|
243 |
if (pl->contr->socket->itemcmd == 2) |
244 |
sl << uint16 (0); |
245 |
} |
246 |
|
247 |
for (last = NULL; tmp != last; tmp = tmp->below) |
248 |
{ |
249 |
object *head; |
250 |
|
251 |
if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last) |
252 |
{ |
253 |
last = tmp->below; /* assumes double floor mode */ |
254 |
if (last && QUERY_FLAG (last, FLAG_IS_FLOOR)) |
255 |
last = last->below; |
256 |
} |
257 |
|
258 |
if (LOOK_OBJ (tmp)) |
259 |
{ |
260 |
if (++start_look < pl->contr->socket->look_position) |
261 |
continue; |
262 |
|
263 |
end_look++; |
264 |
|
265 |
if (end_look > FLOORBOX_PAGESIZE) |
266 |
{ |
267 |
/* What we basically do is make a 'fake' object - when the user applies it, |
268 |
* we notice the special tag the object has, and act accordingly. |
269 |
*/ |
270 |
sl << uint32 (0x80000000 | (pl->contr->socket->look_position + FLOORBOX_PAGESIZE)) |
271 |
<< uint32 (0) |
272 |
<< uint32 ((uint32) - 1) |
273 |
<< uint32 (empty_face->number) |
274 |
<< data8 ("Apply this to see next group of items") |
275 |
<< uint16 (0) |
276 |
<< uint8 (0) |
277 |
<< uint32 (0); |
278 |
|
279 |
if (pl->contr->socket->itemcmd == 2) |
280 |
sl << uint16 (0); |
281 |
|
282 |
break; |
283 |
} |
284 |
|
285 |
if (tmp->head) |
286 |
head = tmp->head; |
287 |
else |
288 |
head = tmp; |
289 |
|
290 |
add_object_to_socklist (*pl->contr->socket, sl, head); |
291 |
got_one++; |
292 |
|
293 |
if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN)) |
294 |
{ |
295 |
pl->contr->socket->send_packet (sl); |
296 |
|
297 |
sl.reset (); |
298 |
sl.printf ("item%d ", pl->contr->socket->itemcmd); |
299 |
sl << uint32 (0); |
300 |
got_one = 0; |
301 |
} |
302 |
} |
303 |
} |
304 |
|
305 |
if (got_one) |
306 |
pl->contr->socket->send_packet (sl); |
307 |
|
308 |
} |
309 |
|
310 |
/** |
311 |
* Sends whole inventory. |
312 |
*/ |
313 |
void |
314 |
esrv_send_inventory (object *pl, object *op) |
315 |
{ |
316 |
object *tmp; |
317 |
int got_one = 0; |
318 |
|
319 |
|
320 |
pl->contr->socket->send_packet_printf ("delinv %d", op->count); |
321 |
|
322 |
packet sl; |
323 |
sl.printf ("item%d ", pl->contr->socket->itemcmd); |
324 |
|
325 |
sl << uint32 (op->count); |
326 |
|
327 |
for (tmp = op->inv; tmp; tmp = tmp->below) |
328 |
{ |
329 |
object *head; |
330 |
|
331 |
if (tmp->head) |
332 |
head = tmp->head; |
333 |
else |
334 |
head = tmp; |
335 |
|
336 |
if (LOOK_OBJ (head)) |
337 |
{ |
338 |
add_object_to_socklist (*pl->contr->socket, sl, head); |
339 |
|
340 |
got_one++; |
341 |
|
342 |
/* IT is possible for players to accumulate a huge amount of |
343 |
* items (especially with some of the bags out there) to |
344 |
* overflow the buffer. IF so, send multiple item commands. |
345 |
*/ |
346 |
if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN)) |
347 |
{ |
348 |
pl->contr->socket->send_packet (sl); |
349 |
|
350 |
sl.reset (); |
351 |
sl.printf ("item%d ", pl->contr->socket->itemcmd); |
352 |
sl << uint32 (op->count); |
353 |
got_one = 0; |
354 |
} |
355 |
} /* If LOOK_OBJ() */ |
356 |
} |
357 |
|
358 |
if (got_one) |
359 |
pl->contr->socket->send_packet (sl); |
360 |
} |
361 |
|
362 |
/** |
363 |
* Updates object *op for player *pl. |
364 |
* |
365 |
* flags is a list of values to update |
366 |
* to the client (as defined in newclient.h - might as well use the |
367 |
* same value both places. |
368 |
*/ |
369 |
|
370 |
void |
371 |
esrv_update_item (int flags, object *pl, object *op) |
372 |
{ |
373 |
/* If we have a request to send the player item, skip a few checks. */ |
374 |
if (op != pl) |
375 |
{ |
376 |
if (!LOOK_OBJ (op)) |
377 |
return; |
378 |
/* we remove the check for op->env, because in theory, the object |
379 |
* is hopefully in the same place, so the client should preserve |
380 |
* order. |
381 |
*/ |
382 |
} |
383 |
|
384 |
if (!QUERY_FLAG (op, FLAG_CLIENT_SENT)) |
385 |
{ |
386 |
/* FLAG_CLIENT_SENT is debug only. We are using it to see where |
387 |
* this is happening - we can set a breakpoint here in the debugger |
388 |
* and track back the call. |
389 |
*/ |
390 |
LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count); |
391 |
} |
392 |
|
393 |
packet sl ("upditem"); |
394 |
|
395 |
sl << uint8 (flags); |
396 |
|
397 |
if (op->head) |
398 |
op = op->head; |
399 |
|
400 |
sl << uint32 (op->count); |
401 |
|
402 |
if (flags & UPD_LOCATION) |
403 |
sl << uint32 (op->env ? op->env->count : 0); |
404 |
|
405 |
if (flags & UPD_FLAGS) |
406 |
sl << uint32 (query_flags (op)); |
407 |
|
408 |
if (flags & UPD_WEIGHT) |
409 |
{ |
410 |
sint32 weight = WEIGHT (op); |
411 |
|
412 |
sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight); |
413 |
|
414 |
if (pl == op) |
415 |
op->contr->last_weight = weight; |
416 |
} |
417 |
|
418 |
if (flags & UPD_FACE) |
419 |
{ |
420 |
if (!(pl->contr->socket->faces_sent[op->face->number] & NS_FACESENT_FACE)) |
421 |
esrv_send_face (pl->contr->socket, op->face->number, 0); |
422 |
|
423 |
sl << uint32 (op->face->number); |
424 |
} |
425 |
|
426 |
if (flags & UPD_NAME) |
427 |
{ |
428 |
int len; |
429 |
const char *item_p; |
430 |
char item_n[MAX_BUF]; |
431 |
|
432 |
if (!op->custom_name) |
433 |
{ |
434 |
strncpy (item_n, query_base_name (op, 0), 127); |
435 |
item_n[127] = 0; |
436 |
len = strlen (item_n); |
437 |
item_p = query_base_name (op, 1); |
438 |
} |
439 |
else |
440 |
{ |
441 |
strncpy (item_n, op->custom_name, 127); |
442 |
item_n[127] = 0; |
443 |
len = strlen (item_n); |
444 |
item_p = op->custom_name; |
445 |
} |
446 |
|
447 |
strncpy (item_n + len + 1, item_p, 127); |
448 |
item_n[254] = 0; |
449 |
len += strlen (item_n + 1 + len) + 1; |
450 |
|
451 |
sl << data8 (item_n, len); |
452 |
} |
453 |
|
454 |
if (flags & UPD_ANIM) |
455 |
sl << uint16 (op->animation_id); |
456 |
|
457 |
if (flags & UPD_ANIMSPEED) |
458 |
{ |
459 |
int anim_speed = 0; |
460 |
|
461 |
if (QUERY_FLAG (op, FLAG_ANIMATE)) |
462 |
{ |
463 |
if (op->anim_speed) |
464 |
anim_speed = op->anim_speed; |
465 |
else |
466 |
{ |
467 |
if (FABS (op->speed) < 0.001) |
468 |
anim_speed = 255; |
469 |
else if (FABS (op->speed) >= 1.0) |
470 |
anim_speed = 1; |
471 |
else |
472 |
anim_speed = (int) (1.0 / FABS (op->speed)); |
473 |
} |
474 |
|
475 |
if (anim_speed > 255) |
476 |
anim_speed = 255; |
477 |
} |
478 |
|
479 |
sl << uint8 (anim_speed); |
480 |
} |
481 |
|
482 |
if (flags & UPD_NROF) |
483 |
sl << uint32 (op->nrof); |
484 |
|
485 |
pl->contr->socket->send_packet (sl); |
486 |
} |
487 |
|
488 |
/** |
489 |
* Sends item's info to player. |
490 |
*/ |
491 |
void |
492 |
esrv_send_item (object *pl, object *op) |
493 |
{ |
494 |
/* If this is not the player object, do some more checks */ |
495 |
if (op != pl) |
496 |
{ |
497 |
/* We only send 'visibile' objects to the client */ |
498 |
if (!LOOK_OBJ (op)) |
499 |
return; |
500 |
/* if the item is on the ground, mark that the look needs to |
501 |
* be updated. |
502 |
*/ |
503 |
if (!op->env) |
504 |
{ |
505 |
pl->contr->socket->floorbox_update (); |
506 |
return; |
507 |
} |
508 |
} |
509 |
|
510 |
packet sl; |
511 |
|
512 |
sl.printf ("item%d ", pl->contr->socket->itemcmd); |
513 |
|
514 |
if (op->head) |
515 |
op = op->head; |
516 |
|
517 |
sl << uint32 (op->env ? op->env->count : 0); |
518 |
|
519 |
add_object_to_socklist (*pl->contr->socket, sl, op); |
520 |
|
521 |
pl->contr->socket->send_packet (sl); |
522 |
SET_FLAG (op, FLAG_CLIENT_SENT); |
523 |
} |
524 |
|
525 |
/** |
526 |
* Tells the client to delete an item. Uses the item |
527 |
* command with a -1 location. |
528 |
*/ |
529 |
|
530 |
void |
531 |
esrv_del_item (player *pl, int tag) |
532 |
{ |
533 |
packet sl ("delitem"); |
534 |
|
535 |
sl << uint32 (tag); |
536 |
|
537 |
pl->socket->send_packet (sl); |
538 |
} |
539 |
|
540 |
|
541 |
/******************************************************************************* |
542 |
* |
543 |
* Client has requested us to do something with an object. |
544 |
* |
545 |
******************************************************************************/ |
546 |
|
547 |
/** |
548 |
* Takes a player and object count (tag) and returns the actual object |
549 |
* pointer, or null if it can't be found. |
550 |
*/ |
551 |
|
552 |
object * |
553 |
esrv_get_ob_from_count (object *pl, tag_t count) |
554 |
{ |
555 |
object *op, *tmp; |
556 |
|
557 |
if (pl->count == count) |
558 |
return pl; |
559 |
|
560 |
for (op = pl->inv; op; op = op->below) |
561 |
if (op->count == count) |
562 |
return op; |
563 |
else if (op->type == CONTAINER && pl->container == op) |
564 |
for (tmp = op->inv; tmp; tmp = tmp->below) |
565 |
if (tmp->count == count) |
566 |
return tmp; |
567 |
|
568 |
for (op = get_map_ob (pl->map, pl->x, pl->y); op; op = op->above) |
569 |
if (op->head && op->head->count == count) |
570 |
return op; |
571 |
else if (op->count == count) |
572 |
return op; |
573 |
else if (op->type == CONTAINER && pl->container == op) |
574 |
for (tmp = op->inv; tmp; tmp = tmp->below) |
575 |
if (tmp->count == count) |
576 |
return tmp; |
577 |
|
578 |
return 0; |
579 |
} |
580 |
|
581 |
|
582 |
/** Client wants to examine some object. So lets do so. */ |
583 |
void |
584 |
ExamineCmd (char *buf, int len, player *pl) |
585 |
{ |
586 |
tag_t tag = atoi (buf); |
587 |
|
588 |
/* If the high bit is set, player examined a pseudo object. */ |
589 |
if (tag & 0x80000000) |
590 |
return; |
591 |
|
592 |
object *op = esrv_get_ob_from_count (pl->ob, tag); |
593 |
|
594 |
if (!op) |
595 |
{ |
596 |
LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag); |
597 |
return; |
598 |
} |
599 |
|
600 |
examine (pl->ob, op); |
601 |
} |
602 |
|
603 |
/** Client wants to apply some object. Lets do so. */ |
604 |
void |
605 |
ApplyCmd (char *buf, int len, player *pl) |
606 |
{ |
607 |
tag_t tag = atoi (buf); |
608 |
|
609 |
/* sort of a hack, but if the player saves and the player then manually |
610 |
* applies a savebed (or otherwise tries to do stuff), we run into trouble. |
611 |
*/ |
612 |
if (QUERY_FLAG (pl->ob, FLAG_REMOVED)) |
613 |
return; |
614 |
|
615 |
/* If the high bit is set, player applied a pseudo object. */ |
616 |
if (tag & 0x80000000) |
617 |
{ |
618 |
pl->socket->look_position = tag & 0x7fffffff; |
619 |
pl->socket->floorbox_update (); |
620 |
return; |
621 |
} |
622 |
|
623 |
object *op = esrv_get_ob_from_count (pl->ob, tag); |
624 |
|
625 |
if (!op) |
626 |
{ |
627 |
LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag); |
628 |
return; |
629 |
} |
630 |
|
631 |
player_apply (pl->ob, op, 0, 0); |
632 |
} |
633 |
|
634 |
/** Client wants to lock some object. Lets do so. */ |
635 |
void |
636 |
LockItem (char *data, int len, player *pl) |
637 |
{ |
638 |
int flag = data[0]; |
639 |
tag_t tag = net_uint32 ((uint8 *)data + 1); |
640 |
object *op = esrv_get_ob_from_count (pl->ob, tag); |
641 |
|
642 |
if (!op) |
643 |
{ |
644 |
new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock"); |
645 |
return; |
646 |
} |
647 |
|
648 |
if (!flag) |
649 |
CLEAR_FLAG (op, FLAG_INV_LOCKED); |
650 |
else |
651 |
SET_FLAG (op, FLAG_INV_LOCKED); |
652 |
|
653 |
esrv_update_item (UPD_FLAGS, pl->ob, op); |
654 |
} |
655 |
|
656 |
/** Client wants to mark some object. Lets do so. */ |
657 |
void |
658 |
MarkItem (char *data, int len, player *pl) |
659 |
{ |
660 |
tag_t tag = net_uint32 ((uint8 *)data); |
661 |
object *op = esrv_get_ob_from_count (pl->ob, tag); |
662 |
|
663 |
if (!op) |
664 |
{ |
665 |
new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark"); |
666 |
return; |
667 |
} |
668 |
|
669 |
pl->mark = op; |
670 |
new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op)); |
671 |
} |
672 |
|
673 |
/** |
674 |
* look_at prints items on the specified square. |
675 |
* |
676 |
* [ removed EARTHWALL check and added check for containers inventory. |
677 |
* Tero.Haatanen@lut.fi ] |
678 |
*/ |
679 |
void |
680 |
look_at (object *op, int dx, int dy) |
681 |
{ |
682 |
object *tmp; |
683 |
int flag = 0; |
684 |
sint16 x, y; |
685 |
maptile *m; |
686 |
|
687 |
x = op->x + dx; |
688 |
y = op->y + dy; |
689 |
|
690 |
if (out_of_map (op->map, x, y)) |
691 |
return; |
692 |
|
693 |
m = get_map_from_coord (op->map, &x, &y); |
694 |
if (!m) |
695 |
return; |
696 |
|
697 |
for (tmp = get_map_ob (m, x, y); tmp != NULL && tmp->above != NULL; tmp = tmp->above); |
698 |
|
699 |
for (; tmp != NULL; tmp = tmp->below) |
700 |
{ |
701 |
if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ)) |
702 |
continue; |
703 |
|
704 |
if (!flag) |
705 |
{ |
706 |
if (dx || dy) |
707 |
new_draw_info (NDI_UNIQUE, 0, op, "There you see:"); |
708 |
else |
709 |
{ |
710 |
clear_win_info (op); |
711 |
new_draw_info (NDI_UNIQUE, 0, op, "You see:"); |
712 |
} |
713 |
flag = 1; |
714 |
} |
715 |
|
716 |
if (QUERY_FLAG (op, FLAG_WIZ)) |
717 |
new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count); |
718 |
else |
719 |
new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp)); |
720 |
|
721 |
if (((tmp->inv != NULL || (tmp->head && tmp->head->inv)) && |
722 |
(tmp->type != CONTAINER && tmp->type != FLESH)) || QUERY_FLAG (op, FLAG_WIZ)) |
723 |
inventory (op, tmp->head == NULL ? tmp : tmp->head); |
724 |
|
725 |
if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ)) /* don't continue under the floor */ |
726 |
break; |
727 |
} |
728 |
|
729 |
if (!flag) |
730 |
{ |
731 |
if (dx || dy) |
732 |
new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there."); |
733 |
else |
734 |
new_draw_info (NDI_UNIQUE, 0, op, "You see nothing."); |
735 |
} |
736 |
} |
737 |
|
738 |
|
739 |
|
740 |
/** Client wants to look at some object. Lets do so. */ |
741 |
void |
742 |
LookAt (char *buf, int len, player *pl) |
743 |
{ |
744 |
int dx, dy; |
745 |
char *cp; |
746 |
|
747 |
dx = atoi (buf); |
748 |
if (!(cp = strchr (buf, ' '))) |
749 |
{ |
750 |
return; |
751 |
} |
752 |
dy = atoi (cp); |
753 |
|
754 |
if (FABS (dx) > pl->socket->mapx / 2 || FABS (dy) > pl->socket->mapy / 2) |
755 |
return; |
756 |
|
757 |
if (pl->blocked_los[dx + pl->socket->mapx / 2][dy + pl->socket->mapy / 2]) |
758 |
return; |
759 |
|
760 |
look_at (pl->ob, dx, dy); |
761 |
} |
762 |
|
763 |
/** Move an object to a new location */ |
764 |
void |
765 |
esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof) |
766 |
{ |
767 |
object *op, *env; |
768 |
|
769 |
op = esrv_get_ob_from_count (pl, tag); |
770 |
if (!op) |
771 |
{ |
772 |
LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag); |
773 |
return; |
774 |
} |
775 |
|
776 |
if (!to) |
777 |
{ /* drop it to the ground */ |
778 |
if (op->map && !op->env) |
779 |
return; |
780 |
|
781 |
/* If it is an active container, then we should drop all objects |
782 |
* in the container and not the container itself. |
783 |
*/ |
784 |
if (op->inv && QUERY_FLAG (op, FLAG_APPLIED)) |
785 |
{ |
786 |
object *current, *next; |
787 |
|
788 |
for (current = op->inv; current != NULL; current = next) |
789 |
{ |
790 |
next = current->below; |
791 |
drop_object (pl, current, 0); |
792 |
} |
793 |
|
794 |
esrv_update_item (UPD_WEIGHT, pl, op); |
795 |
} |
796 |
else |
797 |
drop_object (pl, op, nrof); |
798 |
|
799 |
return; |
800 |
} |
801 |
else if (to == pl->count) |
802 |
{ /* pick it up to the inventory */ |
803 |
/* return if player has already picked it up */ |
804 |
if (op->env == pl) |
805 |
return; |
806 |
|
807 |
pl->contr->count = nrof; |
808 |
pick_up (pl, op); |
809 |
return; |
810 |
} |
811 |
|
812 |
env = esrv_get_ob_from_count (pl, to); |
813 |
if (!env) |
814 |
{ |
815 |
LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to); |
816 |
return; |
817 |
} |
818 |
|
819 |
/* put_object_in_sack presumes that necessary sanity checking |
820 |
* has already been done (eg, it can be picked up and fits in |
821 |
* in a sack, so check for those things. We should also check |
822 |
* an make sure env is in fact a container for that matter. |
823 |
*/ |
824 |
if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof)) |
825 |
put_object_in_sack (pl, env, op, nrof); |
826 |
} |
827 |
|