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/cvs/deliantra/server/include/object.h
Revision: 1.44
Committed: Fri Nov 17 19:40:54 2006 UTC (17 years, 6 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.43: +9 -4 lines
Log Message:
* remove arch.h
* use refcounting for archetypes
* cleanup
* strat of generic garbage collector

File Contents

# Content
1 /*
2 CrossFire, A Multiplayer game for X-windows
3
4 Copyright (C) 2001 Mark Wedel & Crossfire Development Team
5 Copyright (C) 1992 Frank Tore Johansen
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21 The authors can be reached via e-mail at crossfire-devel@real-time.com
22 */
23
24 #ifndef OBJECT_H
25 #define OBJECT_H
26
27 #include "cfperl.h"
28 #include "shstr.h"
29
30 typedef uint32 tag_t;
31 #define NUM_BODY_LOCATIONS 12
32 #define BODY_ARMS 1
33
34 /* See common/item.c */
35
36 typedef struct Body_Locations
37 {
38 const char *save_name; /* Name used to load/save it to disk */
39 const char *use_name; /* Name used when describing an item we can use */
40 const char *nonuse_name; /* Name to describe objects we can't use */
41 } Body_Locations;
42
43 extern Body_Locations body_locations[NUM_BODY_LOCATIONS];
44
45 /*
46 * Each object (this also means archetypes!) could have a few of these
47 * "dangling" from it; this could also end up containing 'parse errors'.
48 *
49 * key and value are shared-strings.
50 *
51 * Please use get_ob_key_value(), set_ob_key_value() from object.c rather than
52 * accessing the list directly.
53 * Exception is if you want to walk this list for some reason.
54 */
55 struct key_value
56 {
57 key_value *next;
58 shstr key, value;
59 };
60
61 struct UUID
62 {
63 uint64 seq;
64 };
65
66 extern void init_uuid ();
67 extern UUID gen_uuid ();
68
69 /* Definition for WILL_APPLY values. Replaces having harcoded values
70 * sprinkled in the code. Note that some of these also replace fields
71 * that were in the can_apply area. What is the point of having both
72 * can_apply and will_apply?
73 */
74 #define WILL_APPLY_HANDLE 0x01
75 #define WILL_APPLY_TREASURE 0x02
76 #define WILL_APPLY_EARTHWALL 0x04
77 #define WILL_APPLY_DOOR 0x08
78 #define WILL_APPLY_FOOD 0x10
79
80 /* However, if you're keeping a pointer of some sort, you probably
81 * don't just want it copied, so you'll need to add to common/object.C,
82 * e.g. copy_object.
83 */
84
85 typedef refptr<object> object_ptr;
86 typedef refptr<archetype> arch_ptr;
87
88 // these are not being copied
89 ACC_CLASS (object)
90 struct object_keep : refcounted
91 {
92 tag_t ACC (RW, count); /* Generation count for this object */
93 UUID uuid; // Unique Identifier, survives saves etc.
94
95 /* These variables are not changed by copy_object() */
96 player *ACC (RW, contr); /* Pointer to the player which control this object */
97 object *ACC (RW, next); /* Pointer to the next object in the free/used list */
98 object *ACC (RW, prev); /* Pointer to the previous object in the free/used list */
99 object *ACC (RW, active_next); /* Next & previous object in the 'active' */
100 object *ACC (RW, active_prev); /* List. This is used in process_events */
101 /* so that the entire object list does not */
102 /* need to be gone through. */
103 object *ACC (RW, below); /* Pointer to the object stacked below this one */
104 object *ACC (RW, above); /* Pointer to the object stacked above this one */
105 /* Note: stacked in the *same* environment */
106 object *inv; /* Pointer to the first object in the inventory */
107 object *ACC (RW, container); /* Current container being used. I think this
108 * is only used by the player right now.
109 */
110 object *ACC (RW, env); /* Pointer to the object which is the environment.
111 * This is typically the container that the object is in.
112 */
113 object *ACC (RW, more); /* Pointer to the rest of a large body of objects */
114 object *head; /* Points to the main object of a large body */ // NO ACC, perl semantics are different
115 maptile *ACC (RW, map); /* Pointer to the map in which this object is present */
116 };
117
118 // these are being copied
119 struct object_copy : attachable<object>
120 {
121 shstr ACC (RW, name); /* The name of the object, obviously... */
122 shstr ACC (RW, name_pl); /* The plural name of the object */
123 shstr ACC (RW, title); /* Of foo, etc */
124 shstr ACC (RW, race); /* human, goblin, dragon, etc */
125 shstr ACC (RW, slaying); /* Which race to do double damage to */
126 /* If this is an exit, this is the filename */
127 shstr ACC (RW, skill); /* Name of the skill this object uses/grants */
128 shstr ACC (RW, msg); /* If this is a book/sign/magic mouth/etc */
129 shstr ACC (RW, lore); /* Obscure information about this object, */
130 /* To get put into books and the like. */
131 shstr ACC (RW, materialname); /* specific material name */
132 shstr ACC (RW, custom_name); /* Custom name assigned by player */
133 object_ptr ACC (RW, owner); /* Pointer to the object which controls this one */
134 object_ptr ACC (RW, enemy); /* Monster/player to follow even if not closest */
135 object_ptr ACC (RW, attacked_by); /* This object start to attack us! only player & monster */
136 object_ptr ACC (RW, chosen_skill); /* the skill chosen to use */
137 object_ptr ACC (RW, spellitem); /* Spell ability monster is choosing to use */
138 object_ptr ACC (RW, spell); /* Spell that was being cast */
139 object_ptr ACC (RW, current_weapon); /* Pointer to the weapon currently used */
140 };
141
142 // these are being copied and also cleared
143 struct object_pod
144 {
145 New_Face *ACC (RW, face); /* Face with colors */
146 sint16 ACC (RW, x), ACC (RW, y); /* Position in the map for this object */
147 float ACC (RW, speed); /* The overall speed of this object */
148 float ACC (RW, speed_left); /* How much speed is left to spend this round */
149 uint32 ACC (RW, nrof); /* How many of the objects */
150 sint8 ACC (RW, direction); /* Means the object is moving that way. */
151 sint8 ACC (RW, facing); /* Object is oriented/facing that way. */
152
153 /* This next big block are basically used for monsters and equipment */
154 uint8 ACC (RW, type); /* PLAYER, BULLET, etc. See define.h */
155 uint8 ACC (RW, subtype); /* subtype of object */
156 uint16 ACC (RW, client_type); /* Public type information. see doc/Developers/objects */
157 sint16 resist[NROFATTACKS]; /* Resistance adjustments for attacks */
158 uint32 ACC (RW, attacktype); /* Bitmask of attacks this object does */
159 uint32 ACC (RW, path_attuned); /* Paths the object is attuned to */
160 uint32 ACC (RW, path_repelled); /* Paths the object is repelled from */
161 uint32 ACC (RW, path_denied); /* Paths the object is denied access to */
162 uint16 ACC (RW, material); /* What materials this object consist of */
163 sint8 ACC (RW, magic); /* Any magical bonuses to this item */
164 uint8 ACC (RW, state); /* How the object was last drawn (animation) */
165 sint32 ACC (RW, value); /* How much money it is worth (or contains) */
166 /* Note that the last_.. values are sometimes used for non obvious
167 * meanings by some objects, eg, sp penalty, permanent exp.
168 */
169 sint32 ACC (RW, last_heal); /* Last healed. Depends on constitution */
170 sint32 ACC (RW, last_sp); /* As last_heal, but for spell points */
171 sint16 ACC (RW, last_grace); /* as last_sp, except for grace */
172 sint16 ACC (RW, last_eat); /* How long since we last ate */
173 sint16 ACC (RW, invisible); /* How much longer the object will be invis */
174 sint16 ACC (RW, level); /* Level of creature or object */
175 uint8 ACC (RW, pick_up); /* See crossfire.doc */
176 sint8 ACC (RW, item_power); /* power rating of the object */
177 sint8 ACC (RW, gen_sp_armour); /* sp regen penalty this object has (was last_heal) */
178 sint8 ACC (RW, glow_radius); /* indicates the glow radius of the object */
179 sint32 ACC (RW, weight); /* Attributes of the object */
180 sint32 ACC (RW, weight_limit); /* Weight-limit of object */
181 sint32 ACC (RW, carrying); /* How much weight this object contains */
182 sint64 ACC (RW, perm_exp); /* Permanent exp */
183 uint32 ACC (RW, weapontype); /* type of weapon */
184 uint32 ACC (RW, tooltype); /* type of tool or build facility */
185 sint8 body_info[NUM_BODY_LOCATIONS]; /* body info as loaded from the file */
186 sint8 body_used[NUM_BODY_LOCATIONS]; /* Calculated value based on items equipped */
187 living ACC (RO, stats); /* Str, Con, Dex, etc */
188 /* See the doc/Developers/objects for more info about body locations */
189
190 /* Following mostly refers to fields only used for monsters */
191 uint32 ACC (RW, hide); /* The object is hidden, not invisible */
192 /* changes made by kholland@sunlab.cit.cornell.edu */
193 /* allows different movement patterns for attackers */
194 sint32 ACC (RW, move_status); /* What stage in attack mode */
195 uint16 ACC (RW, attack_movement); /* What kind of attack movement */
196 uint16 ACC (RW, run_away); /* Monster runs away if it's hp goes below this percentage. */
197 float ACC (RW, expmul); /* needed experience = (calc_exp*expmul) - means some */
198 /* races/classes can need less/more exp to gain levels */
199
200 /* Spell related information, may be useful elsewhere
201 * Note that other fields are used - these files are basically
202 * only used in spells.
203 */
204 sint16 ACC (RW, duration); /* How long the spell lasts */
205 sint16 ACC (RW, casting_time); /* time left before spell goes off */
206 uint16 ACC (RW, start_holding);
207 uint8 ACC (RW, duration_modifier); /* how level modifies duration */
208 uint8 ACC (RW, dam_modifier); /* How going up in level effects damage */
209 sint8 ACC (RW, range); /* Range of the spell */
210 uint8 ACC (RW, range_modifier); /* How going up in level effects range */
211 char *ACC (RW, spellarg);
212
213 /* Following are values used by any object */
214 treasurelist *ACC (RW, randomitems); /* Items to be generated */
215 arch_ptr ACC (RW, arch); /* Pointer to archetype */
216 arch_ptr ACC (RW, other_arch); /* Pointer used for various things - mostly used for what */
217 key_value *key_values; /* Fields not explictly known by the loader. */
218 /* this objects turns into or what this object creates */
219 uint32 flags[4]; /* various flags */
220 uint16 ACC (RW, animation_id); /* An index into the animation array */
221 uint8 ACC (RW, anim_speed); /* ticks between animation-frames */
222 uint8 ACC (RW, last_anim); /* last sequence used to draw face */
223 sint32 ACC (RW, elevation); /* elevation of this terrain - not currently used */
224 uint8 ACC (RW, smoothlevel); /* how to smooth this square around */
225 uint8 ACC (RW, will_apply); /* See crossfire.doc */
226
227 MoveType ACC (RW, move_type); /* Type of movement this object uses */
228 MoveType ACC (RW, move_block); /* What movement types this blocks */
229 MoveType ACC (RW, move_allow); /* What movement types explicitly allowd */
230 MoveType ACC (RW, move_on); /* Move types affected moving on to this space */
231 MoveType ACC (RW, move_off); /* Move types affected moving off this space */
232 MoveType ACC (RW, move_slow); /* Movement types this slows down */
233 float ACC (RW, move_slow_penalty); /* How much this slows down the object */
234 };
235
236 struct object : zero_initialised, object_keep, object_copy, object_pod
237 {
238 typedef unordered_vector<object *> vector;
239
240 static vector mortals;
241 static vector active; // active objects, not yet used
242 static vector objects; // not used yet, use first->next->...
243 static object *first; // will be replaced by "objects"
244
245 static object *create ();
246 void destroy (bool destroy_inventory = false);
247
248 static void free_mortals ();
249 static bool can_merge (object *op1, object *op2);
250
251 void clear ();
252 void clone (object *destination);
253
254 bool destroyed () { return QUERY_FLAG (this, FLAG_FREED); }
255
256 void instantiate ()
257 {
258 if (!uuid.seq) // HACK
259 uuid = gen_uuid ();
260
261 attachable<object>::instantiate ();
262 }
263
264 void set_owner (object *owner);
265
266 // info must hold 256 * 3 bytes currently
267 const char *debug_desc (char *info) const;
268 const char *debug_desc () const;
269
270 // fully recursive iterator
271 struct iterator_base
272 {
273 object *item;
274
275 iterator_base (object *container)
276 : item (container)
277 {
278 }
279
280 operator object *() const { return item; }
281
282 object *operator ->() const { return item; }
283 object &operator * () const { return *item; }
284 };
285
286 // depth-first recursive iterator
287 struct depth_iterator : iterator_base
288 {
289 depth_iterator (object *container);
290 void next ();
291 object *operator ++( ) { next (); return item; }
292 object *operator ++(int) { object *i = item; next (); return i; }
293 };
294
295 object *begin ()
296 {
297 return this;
298 }
299
300 object *end ()
301 {
302 return this;
303 }
304
305 protected:
306 friend struct archetype;
307
308 void link ();
309 void unlink ();
310
311 object ();
312 ~object ();
313 };
314
315 #define get_object() object::create ()
316 #define free_object(op) (op)->destroy (0)
317 #define free_object2(op, free_inv) (op)->destroy (free_inv)
318 #define clear_owner(op) (op)->owner = 0
319 #define copy_owner(op,other) (op)->owner = (other)->owner
320 #define get_owner(op) (op)->owner
321 #define clear_object(op) (op)->clear ()
322
323 static inline void
324 set_owner (object *op, object *owner)
325 {
326 op->set_owner (owner);
327 }
328
329 #define CAN_MERGE(op1,op2) ((op1)->value == (op2)->value && (op1)->name == (op2)->name && object::can_merge ((op1), (op2)))
330
331 typedef struct oblnk
332 { /* Used to link together several objects */
333 object_ptr ob;
334 struct oblnk *next;
335 } objectlink;
336
337 typedef struct oblinkpt
338 { /* Used to link together several object links */
339 struct oblnk *link;
340 long value; /* Used as connected value in buttons/gates */
341 struct oblinkpt *next;
342 } oblinkpt;
343
344 /*
345 * The archetype structure is a set of rules on how to generate and manipulate
346 * objects which point to archetypes.
347 * This probably belongs in arch.h, but there really doesn't appear to
348 * be much left in the archetype - all it really is is a holder for the
349 * object and pointers. This structure should get removed, and just replaced
350 * by the object structure
351 */
352
353 ACC_CLASS (archetype)
354 struct archetype : zero_initialised, refcounted
355 {
356 archetype ();
357 ~archetype ();
358
359 static archetype *find (const char *arch);
360
361 void hash_add (); // add to hastable
362 void hash_del (); // remove from hashtable
363
364 shstr ACC (RW, name); /* More definite name, like "generate_kobold" */
365 struct archetype *ACC (RW, next); /* Next archetype in a linked list */
366 struct archetype *ACC (RW, head); /* The main part of a linked object */
367 struct archetype *ACC (RW, more); /* Next part of a linked object */
368 object ACC (RO, clone); /* An object from which to do copy_object() */
369 uint32 ACC (RW, editable); /* editable flags (mainly for editor) */
370 sint8 ACC (RW, tail_x), ACC (RW, tail_y); /* Where the lower right most portion of the object is
371 * in comparison to the head.
372 */
373 };
374
375 extern object *objects;
376 extern object *active_objects;
377
378 extern int nrofallocobjects;
379
380 /* This returns TRUE if the object is something that
381 * should be displayed in the look window
382 */
383 #define LOOK_OBJ(ob) (!ob->invisible && ob->type!=PLAYER && ob->type!=EVENT_CONNECTOR)
384
385 /* Used by update_object to know if the object being passed is
386 * being added or removed.
387 */
388 #define UP_OBJ_INSERT 1
389 #define UP_OBJ_REMOVE 2
390 #define UP_OBJ_CHANGE 3
391 #define UP_OBJ_FACE 4 /* Only thing that changed was the face */
392
393 /* These are flags passed to insert_ob_in_map and
394 * insert_ob_in_ob. Note that all flags may not be meaningful
395 * for both functions.
396 * Most are fairly explanatory:
397 * INS_NO_MERGE: don't try to merge inserted object with ones alrady
398 * on space.
399 * INS_ABOVE_FLOOR_ONLY: Put object immediatly above the floor.
400 * INS_NO_WALK_ON: Don't call check_walk_on against the
401 * originator - saves cpu time if you know the inserted object
402 * is not meaningful in terms of having an effect.
403 * INS_ON_TOP: Always put object on top. Generally only needed when loading
404 * files from disk and ordering needs to be preserved.
405 * INS_BELOW_ORIGINATOR: Insert new object immediately below originator -
406 * Use for treasure chests so the new object is the highest thing
407 * beneath the player, but not actually above it. Note - the
408 * map and x,y coordinates for the object to be inserted must
409 * match the originator.
410 * INS_MAP_LOAD: disable lots of checkings done at insertion to
411 * speed up map loading process, as we assume the ordering in
412 * loaded map is correct.
413 *
414 * Note that INS_BELOW_ORIGINATOR, INS_ON_TOP, INS_ABOVE_FLOOR_ONLY
415 * are mutually exclusive. The behaviour for passing more than one
416 * should be considered undefined - while you may notice what happens
417 * right now if you pass more than one, that could very well change
418 * in future revisions of the code.
419 */
420 #define INS_NO_MERGE 0x0001
421 #define INS_ABOVE_FLOOR_ONLY 0x0002
422 #define INS_NO_WALK_ON 0x0004
423 #define INS_ON_TOP 0x0008
424 #define INS_BELOW_ORIGINATOR 0x0010
425 #define INS_MAP_LOAD 0x0020
426
427 #define ARCH_SINGULARITY "singularity"
428 #define ARCH_SINGULARITY_LEN 11
429 #define ARCH_DETECT_MAGIC "detect_magic"
430 #define ARCH_DEPLETION "depletion"
431 #define ARCH_SYMPTOM "symptom"
432
433 #endif
434