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/cvs/deliantra/server/include/object.h
Revision: 1.119
Committed: Sat May 12 13:27:37 2007 UTC (17 years ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.118: +16 -0 lines
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# Content
1 /*
2 * CrossFire, A Multiplayer Online RPG
3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
5 * Copyright (C) 2001 Mark Wedel & Crossfire Development Team
6 * Copyright (C) 1992 Frank Tore Johansen
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 * The authors can be reached via e-mail at crossfire@schmorp.de
23 */
24
25 #ifndef OBJECT_H
26 #define OBJECT_H
27
28 #include <bitset>
29
30 #include "cfperl.h"
31 #include "shstr.h"
32
33 typedef int tag_t;
34
35 enum {
36 body_range,
37 body_shield,
38 body_combat,
39 body_arm,
40 body_torso,
41 body_head,
42 body_neck,
43 body_skill,
44 body_finger,
45 body_shoulder,
46 body_foot,
47 body_hand,
48 body_wrist,
49 body_waist,
50 NUM_BODY_LOCATIONS
51 };
52
53 /* See common/item.c */
54
55 typedef struct Body_Locations
56 {
57 const char *save_name; /* Name used to load/save it to disk */
58 const char *use_name; /* Name used when describing an item we can use */
59 const char *nonuse_name; /* Name to describe objects we can't use */
60 } Body_Locations;
61
62 extern Body_Locations body_locations[NUM_BODY_LOCATIONS];
63
64 /*
65 * Each object (this also means archetypes!) could have a few of these
66 * "dangling" from it; this could also end up containing 'parse errors'.
67 *
68 * key and value are shared-strings.
69 *
70 * Please use get_ob_key_value(), set_ob_key_value() from object.c rather than
71 * accessing the list directly.
72 * Exception is if you want to walk this list for some reason.
73 */
74 struct key_value
75 {
76 key_value *next;
77 shstr key, value;
78 };
79
80 struct UUID
81 {
82 uint64 seq;
83
84 UUID () { }
85 UUID (uint64 seq) : seq(seq) { }
86 operator uint64() { return seq; }
87 void operator =(uint64 seq) { this->seq = seq; }
88 };
89
90 extern void init_uuid ();
91 extern UUID gen_uuid ();
92 extern const uint64 UUID_SKIP;
93
94 /* Definition for WILL_APPLY values. Replaces having harcoded values
95 * sprinkled in the code. Note that some of these also replace fields
96 * that were in the can_apply area. What is the point of having both
97 * can_apply and will_apply?
98 */
99 #define WILL_APPLY_HANDLE 0x01
100 #define WILL_APPLY_TREASURE 0x02
101 #define WILL_APPLY_EARTHWALL 0x04
102 #define WILL_APPLY_DOOR 0x08
103 #define WILL_APPLY_FOOD 0x10
104
105 /* However, if you're keeping a pointer of some sort, you probably
106 * don't just want it copied, so you'll need to add to common/object.C,
107 * e.g. ->copy_to ()
108 */
109
110 struct body_slot
111 {
112 signed char info:4; /* body info as loaded from the file */
113 signed char used:4; /* Calculated value based on items equipped */
114 };
115
116 INTERFACE_CLASS (object)
117 // these are being copied
118 struct object_copy : attachable
119 {
120 typedef bitset<NUM_FLAGS> flags_t;
121
122 sint16 ACC (RW, x), ACC (RW, y); /* Position in the map for this object */
123
124 uint8 ACC (RW, type); /* PLAYER, BULLET, etc. See define.h */
125 uint8 ACC (RW, subtype); /* subtype of object */
126 sint8 ACC (RW, direction); /* Means the object is moving that way. */
127 sint8 ACC (RW, facing); /* Object is oriented/facing that way. */
128
129 shstr ACC (RW, name); /* The name of the object, obviously... */
130 shstr ACC (RW, name_pl); /* The plural name of the object */
131 shstr ACC (RW, title); /* Of foo, etc */
132 shstr ACC (RW, race); /* human, goblin, dragon, etc */
133 shstr ACC (RW, slaying); /* Which race to do double damage to */
134 /* If this is an exit, this is the filename */
135 shstr ACC (RW, skill); /* Name of the skill this object uses/grants */
136 shstr ACC (RW, msg); /* If this is a book/sign/magic mouth/etc */
137 shstr ACC (RW, lore); /* Obscure information about this object, */
138 /* To get put into books and the like. */
139 shstr ACC (RW, materialname); /* specific material name */
140 shstr ACC (RW, custom_name); /* Custom name assigned by player */
141 // materialtype_t *ACC (RW, material); /* What material this object consists of */
142 object_ptr ACC (RW, owner); /* Pointer to the object which controls this one */
143 object_ptr ACC (RW, enemy); /* Monster/player to follow even if not closest */
144 object_ptr ACC (RW, attacked_by); /* This object start to attack us! only player & monster */
145 object_ptr ACC (RW, chosen_skill); /* the skill chosen to use */
146 object_ptr ACC (RW, spellitem); /* Spell ability monster is choosing to use */
147 object_ptr ACC (RW, spell); /* Spell that was being cast */
148 object_ptr ACC (RW, current_weapon); /* Pointer to the weapon currently used */
149 arch_ptr ACC (RW, arch); /* Pointer to archetype */
150 arch_ptr ACC (RW, other_arch);/* Pointer used for various things - mostly used for what */
151
152 float ACC (RW, speed); /* The overall speed of this object */
153 float ACC (RW, speed_left); /* How much speed is left to spend this round */
154 uint32 ACC (RW, nrof); /* How many of the objects */
155
156 /* This next big block are basically used for monsters and equipment */
157 uint16 ACC (RW, client_type); /* Public type information. see doc/Developers/objects */
158
159 sint16 ACC (RW, resist[NROFATTACKS]); /* Resistance adjustments for attacks */
160 uint32 ACC (RW, attacktype); /* Bitmask of attacks this object does */
161 uint32 ACC (RW, path_attuned);/* Paths the object is attuned to */
162 uint32 ACC (RW, path_repelled); /* Paths the object is repelled from */
163 uint32 ACC (RW, path_denied); /* Paths the object is denied access to */
164 uint16 ACC (RW, materials); /* What materials this object consists of */
165 sint8 ACC (RW, magic); /* Any magical bonuses to this item */
166 uint8 ACC (RW, state); /* How the object was last drawn (animation) */
167 sint32 ACC (RW, value); /* How much money it is worth (or contains) */
168 /* Note that the last_.. values are sometimes used for non obvious
169 * meanings by some objects, eg, sp penalty, permanent exp.
170 */
171 sint32 ACC (RW, last_heal); /* Last healed. Depends on constitution */
172 sint32 ACC (RW, last_sp); /* As last_heal, but for spell points */
173 sint16 ACC (RW, last_grace); /* as last_sp, except for grace */
174 sint16 ACC (RW, last_eat); /* How long since we last ate */
175 sint16 ACC (RW, invisible); /* How much longer the object will be invis */
176 sint16 ACC (RW, level); /* Level of creature or object */
177 uint8 ACC (RW, pick_up); /* See crossfire.doc */
178 sint8 ACC (RW, item_power); /* power rating of the object */
179 sint8 ACC (RW, gen_sp_armour);/* sp regen penalty this object has (was last_heal) */
180 sint8 ACC (RW, glow_radius); /* indicates the glow radius of the object */
181 sint32 ACC (RW, weight); /* Attributes of the object */
182 sint32 ACC (RW, weight_limit);/* Weight-limit of object */
183 sint32 ACC (RW, carrying); /* How much weight this object contains */
184 sint64 ACC (RW, perm_exp); /* Permanent exp */
185 uint32 ACC (RW, weapontype); /* type of weapon */
186 uint32 ACC (RW, tooltype); /* type of tool or build facility */
187 body_slot slot [NUM_BODY_LOCATIONS];
188 faceidx ACC (RW, face); /* Face with colors */
189 living ACC (RO, stats); /* Str, Con, Dex, etc */
190 /* See the pod/objects.pod for more info about body locations */
191
192 /* Following mostly refers to fields only used for monsters */
193 uint32 ACC (RW, hide); /* The object is hidden, not invisible */
194
195 /* allows different movement patterns for attackers */
196 sint32 ACC (RW, move_status); /* What stage in attack mode */
197 uint16 ACC (RW, attack_movement); /* What kind of attack movement */
198 uint16 ACC (RW, run_away); /* Monster runs away if it's hp goes below this percentage. */
199 float ACC (RW, expmul); /* needed experience = (calc_exp*expmul) - means some */
200 /* races/classes can need less/more exp to gain levels */
201
202 /* Spell related information, may be useful elsewhere
203 * Note that other fields are used - these files are basically
204 * only used in spells.
205 */
206 sint16 ACC (RW, duration); /* How long the spell lasts */
207 sint16 ACC (RW, casting_time);/* time left before spell goes off */
208
209 uint16 ACC (RW, start_holding);
210 uint8 ACC (RW, duration_modifier); /* how level modifies duration */
211 uint8 ACC (RW, dam_modifier); /* How going up in level effects damage */
212
213 sint8 ACC (RW, range); /* Range of the spell */
214 uint8 ACC (RW, range_modifier); /* How going up in level effects range */
215 MoveType ACC (RW, move_type); /* Type of movement this object uses */
216 MoveType ACC (RW, move_block);/* What movement types this blocks */
217
218 MoveType ACC (RW, move_allow);/* What movement types explicitly allowd */
219 MoveType ACC (RW, move_on); /* Move types affected moving on to this space */
220 MoveType ACC (RW, move_off); /* Move types affected moving off this space */
221 MoveType ACC (RW, move_slow); /* Movement types this slows down */
222
223 float ACC (RW, move_slow_penalty); /* How much this slows down the object */
224
225 char *ACC (RW, spellarg);
226
227 /* Following are values used by any object */
228 /* this objects turns into or what this object creates */
229 treasurelist *ACC (RW, randomitems); /* Items to be generated */
230 flags_t flag; /* various flags */
231 #if FOR_PERL
232 bool ACC (RW, flag[NUM_FLAGS]);
233 #endif
234 uint16 ACC (RW, animation_id);/* An index into the animation array */
235 uint8 ACC (RW, anim_speed); /* ticks between animation-frames */
236 uint8 ACC (RW, last_anim); /* last sequence used to draw face */
237 sint16 ACC (RW, elevation); /* elevation of this terrain - not currently used */
238 uint8 ACC (RW, smoothlevel); /* how to smooth this square around */
239 uint8 ACC (RW, will_apply); /* See crossfire.doc */
240 };
241
242 struct object : zero_initialised, object_copy
243 {
244 // These variables are not changed by ->copy_to
245 maptile_ptr ACC (RW, map); /* Pointer to the map in which this object is present */
246
247 UUID ACC (RW, uuid); // Unique Identifier, survives saves etc.
248 int ACC (RO, count);
249 int ACC (RO, index); // index into objects
250 int ACC (RO, active); // index into actives
251
252 player_ptr ACC (RW, contr); /* Pointer to the player which control this object */
253
254 object *ACC (RW, below); /* Pointer to the object stacked below this one */
255 object *ACC (RW, above); /* Pointer to the object stacked above this one */
256 /* Note: stacked in the *same* environment */
257 object *inv; /* Pointer to the first object in the inventory */
258
259 //TODO: container must move into client
260 object_ptr ACC (RW, container); /* Current container being used. I think this
261 * is only used by the player right now.
262 */
263 object *ACC (RW, env); /* Pointer to the object which is the environment.
264 * This is typically the container that the object is in.
265 */
266 object *ACC (RW, more); /* Pointer to the rest of a large body of objects */
267 object *head; /* Points to the main object of a large body */ // NO ACC, perl semantics are different
268 client_container *seen_by; // seen by which player/container currently?
269 key_value *key_values; /* Fields not explictly known by the loader. */
270
271 bool parse_kv (object_thawer &f); // parse kv pairs, (ab-)used by archetypes, which should not exist at all
272 void post_load_check (); // do some adjustments after parsing
273 static object *read (object_thawer &f, maptile *map = 0); // map argument due to toal design bogosity, must go.
274 bool write (object_freezer &f);
275
276 MTH static object *create ();
277 object &operator =(const object &src);
278 MTH void copy_to (object *dst);
279 MTH object *clone (); // create + copy_to
280 void do_destroy ();
281 void gather_callbacks (AV *&callbacks, event_type event) const;
282 MTH void destroy (bool destroy_inventory = false);
283
284 // recursively destroy all objects in inventory, optionally dropping them to the ground instead
285 MTH void destroy_inv (bool drop_to_ground = false);
286 MTH object *insert (object *item); // insert into inventory
287 void do_remove ();
288 MTH void remove ()
289 {
290 if (!flag [FLAG_REMOVED])
291 do_remove ();
292 }
293
294 // move this object to the top of its env's inventory to speed up
295 // searches for it.
296 MTH void inv_splay ()
297 {
298 if (env && env->inv != this)
299 {
300 if (above) above->below = below;
301 if (below) below->above = above;
302
303 above = 0;
304 below = env->inv;
305 below->above = this;
306 env->inv = this;
307 }
308 }
309
310 static bool can_merge_slow (object *op1, object *op2);
311
312 // this is often used in time-critical code, so optimise
313 MTH static bool can_merge (object *op1, object *op2)
314 {
315 return op1->value == op2->value
316 && op1->name == op2->name
317 && can_merge_slow (op1, op2);
318 }
319
320 MTH void set_owner (object *owner);
321 MTH void set_speed (float speed);
322 MTH void set_weapon (object *ob);
323
324 MTH void open_container (object *new_container);
325 MTH void close_container ()
326 {
327 open_container (0);
328 }
329
330 MTH void instantiate ();
331
332 // recalculate all stats
333 MTH void update_stats ();
334 MTH void roll_stats ();
335 MTH void swap_stats (int a, int b);
336 MTH void add_statbonus ();
337 MTH void remove_statbonus ();
338 MTH void drain_stat ();
339 MTH void drain_specific_stat (int deplete_stats);
340 MTH void change_luck (int value);
341
342 // info must hold 256 * 3 bytes currently
343 const char *debug_desc (char *info) const;
344 MTH const char *debug_desc () const; // uses at least 3 round-robin buffers
345 const char *flag_desc (char *desc, int len) const;
346
347 int number_of () const
348 {
349 return nrof ? nrof : 1;
350 }
351
352 uint64 total_weight () const
353 {
354 return weight * number_of ();
355 }
356
357 // return the dominant material of this item, always return something
358 const materialtype_t *dominant_material () const;
359
360 // return the volume of this object in cm³
361 uint64 volume () const
362 {
363 return total_weight ()
364 * 1000
365 * (type == CONTAINER ? 1000 : 1)
366 / dominant_material ()->density;
367 }
368
369 MTH bool is_weapon () const { return type == ARROW || type == BOW || type == WEAPON; }
370 MTH bool is_armor () const { return type == ARMOUR || type == SHIELD || type == HELMET
371 || type == CLOAK || type == BOOTS || type == GLOVES
372 || type == BRACERS || type == GIRDLE; }
373 MTH bool is_alive () const { return (type == PLAYER
374 || flag [FLAG_MONSTER]
375 || (flag [FLAG_ALIVE] && !flag [FLAG_GENERATOR] && type != DOOR))
376 && !flag [FLAG_IS_A_TEMPLATE]; }
377 MTH bool is_arrow () const { return type == ARROW
378 || (type == SPELL_EFFECT
379 && (subtype == SP_BULLET || subtype == SP_MAGIC_MISSILE)); }
380 MTH bool is_range () const { return type == BOW || type == ROD || type == WAND || type == HORN; }
381
382 MTH bool has_active_speed () const { return FABS(speed) >= MIN_ACTIVE_SPEED; }
383
384 // temporary: wether the object can be saved in a map file
385 // contr => is a player
386 // head => only save head of a multitile object
387 // owner => can not reference owner yet
388 MTH bool can_map_save () const { return !contr && !head && !owner && !flag [FLAG_NO_MAP_SAVE]; }
389
390 /* This return true if object has still randomitems which
391 * could be expanded.
392 */
393 MTH bool has_random_items () const { return randomitems && !flag [FLAG_IS_A_TEMPLATE]; }
394
395 // returns the player that has this object in his inventory, or 0
396 MTH object *in_player () const
397 {
398 for (object *op = env; op; op = op->env)
399 if (op->type == PLAYER)
400 return op;
401
402 return 0;
403 }
404
405 // "temporary" helper function
406 MTH object *head_ ()
407 {
408 return head ? head : this;
409 }
410
411 MTH std::string long_desc (object *who = 0);
412 MTH std::string describe_monster (object *who = 0);
413 MTH std::string describe_item (object *who = 0);
414 MTH std::string describe (object *who = 0);
415
416 // If this object has no extra parts but should have them,
417 // add them, effectively expanding heads into multipart
418 // objects. This method only works on objects not inserted
419 // anywhere.
420 MTH void expand_tail ();
421
422 MTH void create_treasure (treasurelist *tl, int flags = 0);
423
424 // insert object at same map position as 'where'
425 // handles both inventory and map "positions"
426 MTH object *insert_at (object *where, object *originator = 0, int flags = 0);
427
428 MTH void activate ();
429 MTH void deactivate ();
430 MTH void activate_recursive ();
431 MTH void deactivate_recursive ();
432
433 // set the givne flag on all objects in the inventory recursively
434 MTH void set_flag_inv (int flag, int value = 1);
435
436 void enter_exit (object *exit);//Perl
437 MTH void enter_map (maptile *newmap, int x, int y);
438
439 // returns the mapspace this object is in
440 mapspace &ms () const;
441
442 // fully recursive iterator
443 struct iterator_base
444 {
445 object *item;
446
447 iterator_base (object *container)
448 : item (container)
449 {
450 }
451
452 operator object *() const { return item; }
453
454 object *operator ->() const { return item; }
455 object &operator * () const { return *item; }
456 };
457
458 MTH unsigned int random_seed () const
459 {
460 return (unsigned int)uuid.seq;
461 }
462
463 // depth-first recursive iterator
464 struct depth_iterator : iterator_base
465 {
466 depth_iterator (object *container);
467 void next ();
468 object *operator ++( ) { next (); return item; }
469 object *operator ++(int) { object *i = item; next (); return i; }
470 };
471
472 object *begin ()
473 {
474 return this;
475 }
476
477 object *end ()
478 {
479 return this;
480 }
481
482 /* This returns TRUE if the object is something that
483 * should be displayed in the floorbox/inventory window
484 */
485 MTH bool client_visible () const
486 {
487 return !invisible && type != PLAYER;
488 }
489
490 MTH struct region *region () const;
491
492 protected:
493 friend struct archetype;
494
495 void link ();
496 void unlink ();
497
498 object ();
499 ~object ();
500 };
501
502 typedef object_vector<object, &object::index > objectvec;
503 typedef object_vector<object, &object::active> activevec;
504
505 extern objectvec objects;
506 extern activevec actives;
507
508 #define for_all_objects(var) \
509 for (unsigned _i = 0; _i < objects.size (); ++_i) \
510 declvar (object *, var, objects [_i])
511
512 #define for_all_actives(var) \
513 for (unsigned _i = 0; _i < actives.size (); ++_i) \
514 declvar (object *, var, actives [_i])
515
516 typedef struct oblnk
517 { /* Used to link together several objects */
518 object_ptr ob;
519 struct oblnk *next;
520 } objectlink;
521
522 typedef struct oblinkpt
523 { /* Used to link together several object links */
524 struct oblnk *link;
525 long value; /* Used as connected value in buttons/gates */
526 struct oblinkpt *next;
527 } oblinkpt;
528
529 /*
530 * The archetype structure is a set of rules on how to generate and manipulate
531 * objects which point to archetypes.
532 * This probably belongs in arch.h, but there really doesn't appear to
533 * be much left in the archetype - all it really is is a holder for the
534 * object and pointers. This structure should get removed, and just replaced
535 * by the object structure
536 */
537
538 INTERFACE_CLASS (archetype)
539 struct archetype : zero_initialised, attachable
540 {
541 archetype ();
542 ~archetype ();
543 void gather_callbacks (AV *&callbacks, event_type event) const;
544
545 static archetype *read (object_thawer &f);
546 static archetype *get (const char *name); // find or create
547 static archetype *find (const char *name);
548
549 void hash_add (); // add to hashtable
550 void hash_del (); // remove from hashtable
551
552 shstr ACC (RW, name); /* More definite name, like "generate_kobold" */
553 struct archetype *ACC (RW, next); /* Next archetype in a linked list */
554 struct archetype *ACC (RW, head); /* The main part of a linked object */
555 struct archetype *ACC (RW, more); /* Next part of a linked object */
556 object ACC (RO, clone); /* An object from which to do ->copy_to () */
557 uint32 ACC (RW, editable); /* editable flags (mainly for editor) */
558 bool ACC (RW, linked); // linked into list of heads
559 sint8 ACC (RW, tail_x), ACC (RW, tail_y); /* Where the lower right most portion of the object is
560 * in comparison to the head.
561 */
562 };
563
564 /* Used by update_object to know if the object being passed is
565 * being added or removed.
566 */
567 #define UP_OBJ_INSERT 1
568 #define UP_OBJ_REMOVE 2
569 #define UP_OBJ_CHANGE 3
570 #define UP_OBJ_FACE 4 /* Only thing that changed was the face */
571
572 /* These are flags passed to insert_ob_in_map and
573 * insert_ob_in_ob. Note that all flags may not be meaningful
574 * for both functions.
575 * Most are fairly explanatory:
576 * INS_NO_MERGE: don't try to merge inserted object with ones alrady
577 * on space.
578 * INS_ABOVE_FLOOR_ONLY: Put object immediatly above the floor.
579 * INS_NO_WALK_ON: Don't call check_walk_on against the
580 * originator - saves cpu time if you know the inserted object
581 * is not meaningful in terms of having an effect.
582 * INS_ON_TOP: Always put object on top. Generally only needed when loading
583 * files from disk and ordering needs to be preserved.
584 * INS_BELOW_ORIGINATOR: Insert new object immediately below originator -
585 * Use for treasure chests so the new object is the highest thing
586 * beneath the player, but not actually above it. Note - the
587 * map and x,y coordinates for the object to be inserted must
588 * match the originator.
589 * INS_MAP_LOAD: disable lots of checkings done at insertion to
590 * speed up map loading process, as we assume the ordering in
591 * loaded map is correct.
592 *
593 * Note that INS_BELOW_ORIGINATOR, INS_ON_TOP, INS_ABOVE_FLOOR_ONLY
594 * are mutually exclusive. The behaviour for passing more than one
595 * should be considered undefined - while you may notice what happens
596 * right now if you pass more than one, that could very well change
597 * in future revisions of the code.
598 */
599 #define INS_NO_MERGE 0x0001
600 #define INS_ABOVE_FLOOR_ONLY 0x0002
601 #define INS_NO_WALK_ON 0x0004
602 #define INS_ON_TOP 0x0008
603 #define INS_BELOW_ORIGINATOR 0x0010
604 #define INS_MAP_LOAD 0x0020
605
606 #define ARCH_SINGULARITY "singularity"
607 #define ARCH_DETECT_MAGIC "detect_magic"
608 #define ARCH_DEPLETION "depletion"
609 #define ARCH_SYMPTOM "symptom"
610
611 #endif
612