ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/pod/events.pod
(Generate patch)

Comparing deliantra/server/pod/events.pod (file contents):
Revision 1.5 by root, Sun Sep 17 18:19:19 2006 UTC vs.
Revision 1.41 by root, Mon Oct 1 01:43:39 2012 UTC

1=head1 CROSSFIRE+ PLUG-IN EVENTS 1=begin comment
2
3 This file is part of Deliantra, the Roguelike Realtime MMORPG.
4
5 Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7 Deliantra is free software: you can redistribute it and/or modify it under
8 the terms of the Affero GNU General Public License as published by the
9 Free Software Foundation, either version 3 of the License, or (at your
10 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 Affero GNU General Public License
18 and the GNU General Public License along with this program. If not, see
19 <http://www.gnu.org/licenses/>.
20
21 The authors can be reached via e-mail to <support@deliantra.net>
22
23=end comment
24
25=head1 DELIANTRA PLUG-IN EVENTS
2 26
3This document briefly describes each plug-in event. It is also used to 27This document briefly describes each plug-in event. It is also used to
4generate the event-list itself, so is always complete. Be careful wehn 28generate the event-list itself, so is always complete. Be careful wehn
5changing it, though. 29changing it, though.
6 30
7=head2 NOTATION 31=head2 NOTATION
8 32
9the event description below uses a variant of the forth stack notation - 33The event description below uses a variant of the forth stack notation -
10an opening parenthesis followed by the type of each parameter, optionally 34an opening parenthesis followed by the type of each parameter, optionally
11followed by two dashes and the returning parameters. If the latter is 35followed by two dashes and the returning parameters. If the latter part is
12missing, the event will be invoked but cannot change wether the event gets 36missing, the event will be invoked but cannot change wether the event gets
13processed. 37processed.
14 38
15If it is specified (even if no return values are supported), a plug-in 39Return values are given by overriding (in Perl by calling C<cf::override>)
16can override (e.g. using C<cf::override> in Perl) event processing, 40with the return values, which will both stop further event processing and
17basically short-circuiting it. For example, if you override from within a 41tell the caller that it wants to override normal processing.
18player BIRTH event, nothing much will happen with respect to the built-in 42
43Even if no return values are supported, a plug-in can override (e.g. using
44C<cf::override> in Perl) event processing, basically short-circuiting
45it. For example, if you override from within a player BIRTH event,
46nothing much will happen with respect to the built-in processing, but if
19processing, but if you override from within a player TELL event, the tell 47you override from within a player TELL event, the tell will be ignored
20will be ignored (presumably your plug-in took care of it). 48(presumably your plug-in took care of it).
21 49
22 50
23=head2 OBJECT EVENTS 51=head2 ATTACHABLE EVENTS
24 52
25Object events always relate to a specific object, which is always the 53No time to document this, screw me.
26first argument. Not all events get generated for every object, some are
27specific to an object type.
28 54
29=head3 instantiate (object init-args...) 55=head3 instantiate (object init-args...)
30 56
31An archetype was instantiated into an object. This event occurs when 57An object was instantiated.
32a map is loaded for the first time, or when the object was created 58
59For objects, this event occurs when a map is loaded for the first time
60when it was instantiated from an archetype, or when the object was created
33dynamically. The arguments are as specified in the C<attach> attribute of 61dynamically. The arguments are as specified in the C<attach> attribute of
34the object or archetype. 62the object or archetype.
35 63
36This is useful to initialise any per-object state you might need. 64This is useful to initialise any per-object state you might need.
37 65
42server was reloaded. This event will only be generated if the object has 70server was reloaded. This event will only be generated if the object has
43attachments. 71attachments.
44 72
45=head3 clone (object destination) 73=head3 clone (object destination)
46 74
47An object with _attached extension_ is cloned, that is, a copy was 75An object with _attached plugin_ is cloned, that is, a copy was made. The
48made. The copy automatically has all attachments the original object 76copy automatically has all attachments the original object had. The perl
49had. The perl variables get copied in a shallow way (references are shared 77variables get copied in a shallow way (references are shared between
50between instances). If this is not the behaviour you need, you have to 78instances). If this is not the behaviour you need, you have to adjust the
51adjust the B<destination> object as you see fit. 79B<destination> object as you see fit.
52 80
53=head3 destroy (object) 81=head3 destroy (object -- )
54 82
55Invoked when the crossfire object gets destroyed, and only when the object 83Invoked when the deliantra object gets destroyed, and only when the object
56has a handler for this event. This event can occur many times, as its 84has a handler for this event. This event can occur many times, as its
57called when the in-memory object is destroyed, not when the object itself 85called when the in-memory object is destroyed, not when the object itself
58dies. 86dies.
59 87
88
89=head2 OBJECT EVENTS
90
91Object events always relate to a specific object, which is always the
92first argument. Not all events get generated for every object, some are
93specific to an object type.
94
95=head3 add_bonus (item creator difficulty max_magic flags -- )
96
97A basic item has been created (e.g. for shops, monsters drops etc.)
98that needs bonus values applied. The B<creator> object is a template
99object that can be used to inherit stuff (and can be NULL). Flags is a
100combination of GT_ENVIRONMENT (???) or GT_STARTEQUIP (set FLAG_STARTEQUIP
101on item or set its value to 0) or GT_MINIMAL (???)
102
103When overriden, built-in bonus generation is skipped, otherwise
104treasure generation continues as it would without this hook.
105
106In general, if flags != 0 or creator != 0 you should just return and leave
107item generation to the standard code.
108
109=head3 remove (object -- )
110
111Invoked before the object is removed from its environment.
112
113=head3 insert (object -- )
114
115Called after the object was inserted into a container or map.
116
60=head3 tick (object) 117=head3 tick (object -- )
61 118
62Invoked whenever the object "ticks", i.e. has positive B<speed_left>. Only 119Invoked whenever the object "ticks", i.e. has positive B<speed_left>. Only
63during ticks should an objetc process any movement or other events. 120during ticks should an objetc process any movement or other events.
64 121
65=head3 kill (object hitter -- ) 122=head3 kill (object hitter -- )
66 123
67Invoked whenever an object is dead and about to get removed. Overriding 124Invoked whenever an object was killed (hp < 0 caused by an attack) and is
68processing will skip removal, but to do this successfully you have to 125about to get removed. Overriding processing will skip removal, but to do
69objetc from dieing, otherwise the event gets invoked again and again. 126this successfully you have to keep the object from dieing, otherwise the
127event gets invoked again and again.
70 128
71=head3 apply (object who -- applytype) 129=head3 apply (object who -- applytype)
72 130
73Invoked whenever the object is being applied in some way. The applytype is one of: 131Invoked whenever the object is being applied in some way. The applytype is one of:
74 132
79=item B<1> has been applied, or there was an error applying the object 137=item B<1> has been applied, or there was an error applying the object
80 138
81=item B<2> objects of that type can't be applied if not in inventory 139=item B<2> objects of that type can't be applied if not in inventory
82 140
83=back 141=back
142
143=head3 reset (object)
144
145Invoked whenever the object is initialised on a map after it was
146loaded. This can be used to emulate shop-floor behaviour for example.
84 147
85=head3 throw (object thrower) 148=head3 throw (object thrower)
86 149
87Invoked when an B<object> is thrown by B<thrower>. 150Invoked when an B<object> is thrown by B<thrower>.
88 151
114Unwield/unapply/unready the given spell/weapon/skill/etc. B<object>, 177Unwield/unapply/unready the given spell/weapon/skill/etc. B<object>,
115currently applied by B<who>. If your override, make sure you give 'who' 178currently applied by B<who>. If your override, make sure you give 'who'
116(if it is a player) an indication of whats wrong. Must return true if the 179(if it is a player) an indication of whats wrong. Must return true if the
117object was freed. 180object was freed.
118 181
119=head3 use_skill (skill who part direction strignarg -- ) 182=head3 use_skill (skill who part direction stringarg -- )
120 183
121Invoked whenever a skill is used by somebody or something. 184Invoked whenever a skill is used by somebody or something.
122 185
123=head3 cast_spell (spell casting_object owner direction stringarg -- ) 186=head3 cast_spell (spell owner casting_object direction stringarg -- )
124 187
125Invoked whenever a given spell is cast by B<casting_object> (used by 188Invoked whenever a given spell is cast by B<casting_object> (used by
126B<owner>). 189B<owner>).
127 190
128=head3 drop (object who -- ) 191=head3 drop (object who -- )
151damage that has been dealt. 214damage that has been dealt.
152 215
153=head3 skill_attack (attacker victim message skill -- success) 216=head3 skill_attack (attacker victim message skill -- success)
154 217
155Invoked whenever an B<attacker> attacks B<victim> using a B<skill> (skill 218Invoked whenever an B<attacker> attacks B<victim> using a B<skill> (skill
156cna be C<undef>). B<message> is the message that describes the attack when 219can be C<undef>). B<message> is the message that describes the attack when
157damage is done. 220damage is done.
158 221
159=head3 weapon_attack (weapon hitter victim) 222=head3 weapon_attack (weapon hitter victim)
160 223
161Invoked whenever an object is used as a B<weapon> by B<hitter> to attack 224Invoked whenever an object is used as a B<weapon> by B<hitter> to attack
162B<victim>. 225B<victim>.
163 226
164=head3 inscribe_note (book pl message skill -- ) 227=head3 inscribe_note (book pl message skill -- )
165 228
166Used whenever a book gets inscribed with a message. 229Used whenever a book gets inscribed with a message.
230
231=head3 infect (victim disease_type disease -- )
232
233Invoked whenever an object is diseased. The disease object is already
234inserted in object (the template disease object is C<disease_type>),
235but no messages have been generated. If overriden, no messages will be
236generated.
167 237
168=head3 trigger (object who -- ) 238=head3 trigger (object who -- )
169 239
170Invoked whenever a lever-like B<object> has been activated/triggered in some 240Invoked whenever a lever-like B<object> has been activated/triggered in some
171(manual) way. 241(manual) way.
174 244
175Invoked whenever a trap-like B<object> has been activated, usually by 245Invoked whenever a trap-like B<object> has been activated, usually by
176moving onto it. This includes not just traps, but also buttons, holes, 246moving onto it. This includes not just traps, but also buttons, holes,
177signs and similar stuff. 247signs and similar stuff.
178 248
249=head3 open (container who -- )
250
251Invoked whenever a container gets opened. When overriden, the container will not
252get opened, but you must tell op about the reason.
253
179=head3 close (container who -- ) 254=head3 close (container who -- )
180 255
181Invoked whenever a container gets closed (this event is not yet reliable!). 256Invoked whenever a container gets closed. When overriden, the container
257will not get closed, but you must tell op about the reason. This event
258is not crash-safe, i.e. containers might be closed due to a server crash
259without this event being invoked.
260
261=head3 blocked_move (self who -- do_blocked)
262
263Invoked when an C<who> tries to move to the same space as C<self>,
264C<self>'s C<move_block> causes blocked movement for C<who> and nothing
265else explicitly allows movement to this space.
266
267Should return true when C<who> is blocked, i.e., should not be allowed to
268move onto C<self>.
269
270When not overriding, normal blocked_move (blocked_link) processing will
271happen.
182 272
183 273
184=head2 GLOBAL EVENTS 274=head2 GLOBAL EVENTS
185 275
186Global events have no relation to specific objects. 276Global events have no relation to specific objects.
187 277
188=head3 cleanup () 278=head3 cleanup ()
189 279
190Called when the server is cleaning up, just before it calls exit. 280Called when the server is cleaning up, just before it calls exit.
191 281
192=head3 clock ( ) 282=head3 clock ()
193 283
194Is invoked on every server tick, usually every 0.12 seconds. 284Is invoked on every server tick, usually every 0.12 seconds.
195 285
286=head3 resource_update ()
287
288Is invoked after each time the server reloads its resources, which is
289usually one of the earliest things it does when starting up.
290
196 291
197=head2 PLAYER EVENTS 292=head2 PLAYER EVENTS
198 293
199Player events always have a player object as first argument. 294Player events always have a player object as first argument.
200 295
201=head3 reattach (player)
202
203Invoked whenever attachments/plug-ins need to get reattached to the player
204object. This usually happens when the player gets loaded from disk, or
205when the server is reloaded.
206
207=head3 birth (player) 296=head3 birth (player)
208 297
209Invoked as very first thing after creating a player. 298Invoked as very first thing after creating a player.
210 299
211=head3 quit (player) 300=head3 quit (player)
212 301
213Invoked wheneever a player quits, before actually removing him/her. 302Invoked wheneever a player quits, before actually removing him/her.
214 303
215=head3 kick (player params -- ) 304=head3 kick (player params -- )
216 305
217Invoked when the given plaer is being kicked, before the kick is executed. 306Invoked when the given player is being kicked, before the kick is
307executed.
218 308
219=head3 load (player) 309=head3 load (player -- )
220 310
221Invoked whenever a player has been loaded from disk, but before 311Invoked whenever after a player has been loaded from disk, but before
222actual login. 312actual activation/login.
223 313
224=head3 save (player) 314=head3 save (player -- )
225 315
226Invoked just before a player gets saved. 316Invoked just before a player gets serialised.
317
318=head3 save_done (player -- )
319
320Invoked just after a player was serialised.
321
322=head3 connect (player -- )
323
324Invoked just after the player object was connected to a client.
325
326=head3 disconnect (player -- )
327
328Invoked just before the player gets disconnected from the client.
227 329
228=head3 login (player) 330=head3 login (player)
229 331
230Invoked whenever a player logs in. 332Invoked whenever a player logs in.
231 333
232=head3 logout (player) 334=head3 logout (player cleanly -- )
233 335
234Invoked whenever a player logs out, gets disconnected etc. 336Invoked whenever a player logs out, gets disconnected etc.
235 337
236=head3 death (player) 338=head3 death (player)
237 339
239 341
240=head3 map_change (player newmap x y -- ) 342=head3 map_change (player newmap x y -- )
241 343
242Invoked before a player moves from one map to another, can override the movement. 344Invoked before a player moves from one map to another, can override the movement.
243 345
346=head3 region_change (player newregion oldregion -- )
347
348Invoked when a player entered a new region. Cannot be overriden.
349
350=head3 command (player command args -- time)
351
352Execute a user command sent by the client - this is invoked for I<all>
353command,s so should not normally be hooked.
354
355=head3 unknown_command (player command args -- time)
356
357Execute a user command sent by the client that isn't known to the
358server. Programmable plug-ins usually handle this event internally.
359
244=head3 extcmd (player string) 360=head3 extcmd (player string)
245 361
246Invoked whenever a client issues the C<extcmd> protocol command. It's 362Invoked whenever a client issues the C<extcmd> protocol command.
247argument is passed without any changes. 363Programmable plug-ins usually handle this event internally.
248 364
249=head3 move (player direction -- ) 365=head3 move (player direction -- )
366
367Called whenever the player is supposed to move or attack. The handler
368must handle the cases of speed_left or weapon_sp_left being negative,
369fire being on, is responsible for decreaseing the speed_left value
370on successful moves etc. etc.. When overriden, must return a boolean
371indicating wether a move could be effected.
250 372
251=head3 pray_altar (player altar skill -- ) 373=head3 pray_altar (player altar skill -- )
252 374
253Invoked whenever the B<player> prays over an B<altar>, using the given B<skill>. 375Invoked whenever the B<player> prays over an B<altar>, using the given B<skill>.
254 376
255=head3 tell (player name message -- ) 377=head3 tell (player name message -- )
256 378
257Invoked whenever the player uses the B<tell> or B<reply> command, before 379Invoked whenever the player uses the B<tell> or B<reply> command, before
258it gets processed. 380it gets processed.
259 381
382=head3 told (player player message -- )
383
384Invoked right before a message is being told to a player using B<tell> or
385B<reply>.
386
260=head3 say (player message --) 387=head3 say (player message --)
261 388
262=head3 chat (player message --) 389=head3 chat (player message --)
263 390
264=head3 shout (player message --) 391=head3 shout (player message --)
265 392
266Invoked whenever the player uses the B<say>, B<chat> or B<shout> command, 393Invoked whenever the player uses the B<say>, B<chat> or B<shout> command,
267before it gets processed. 394before it gets processed.
268 395
396=head3 build (player builder map x y checkok --)
397
398Players tries to build using C<builder> at (map+x+y). Is invoked after
399the usual map sanity checks, so the coordinates are valid. The boolean
400C<checkok> is true only if the build code thinks it is "ok" to build at
401that space, and normally you should only build when it is true.
402
269 403
270=head2 MAP EVENTS 404=head2 MAP EVENTS
271 405
272These events are generally dependent on a map and thus all have a map 406These events are generally dependent on a map and thus all have a map
273as first argument. 407as first argument.
274 408
275=head3 instantiate (map) 409=head3 instantiate (map)
276 410
277Original B<map> has been loaded (e.g. on first use, or after a map 411Original B<map> has been loaded (e.g. on first use, or after a map
278reset). 412reset).
279
280=head3 reattach (map)
281
282Invoked whenever attachments/plug-ins need to get reattached to the
283B<map>. This usually happens when the map was loaded from disk, or when the
284server was reloaded.
285
286=head3 destroy (map)
287
288Invoked when the map object gets destroyed, and only when the map object
289has a handler for this event. This event can occur many times, as its
290called when the in-memory object is destroyed, not when the object itself
291dies.
292 413
293=head3 swapin (map) 414=head3 swapin (map)
294 415
295Invoked when a previously swapped-out temporary B<map> has been loaded again. 416Invoked when a previously swapped-out temporary B<map> has been loaded again.
296 417
315=head3 leave (map player -- ) 436=head3 leave (map player -- )
316 437
317Invoked whenever a player tries to leave the B<map>. Overriding means the 438Invoked whenever a player tries to leave the B<map>. Overriding means the
318player won't be able to leave. 439player won't be able to leave.
319 440
320=head3 trigger (map connection state) 441=head3 trigger (map connection state what? who? -- )
321 442
322Invoked whenever something activates a B<connection> on the B<map>. If B<state> 443Invoked whenever something activates a B<connection> on the B<map>. If B<state>
323is true the connection was 'state' and if false it is 'released'. 444is true the connection was 'state' and if false it is 'released'.
324 445
446
447=head2 CLIENT EVENTS
448
449These events are very similar to player events, but they are might be
450handled asynchronously as soon as the command reaches the server, even when
451the player hasn't logged in yet (meaning there is no player yet).
452
453=head3 connect (client -- )
454
455Called as soon as a new connection to the server is established and the
456socket has been configured.
457
458=head3 version (client string -- )
459
460Called as soon as the version command from the client is received
461(normally the very first command sent).
462
463=head3 setup (client string -- )
464
465Client sent the setup command to negotiate parameters. Handling is
466mandatory and done by F<login.ext>.
467
468=head3 addme (client -- )
469
470The client sent an addme, thus ending the initial handshaking. Handling is mandatory
471and done by F<login.ext>.
472
473=head3 reply (client replystring -- )
474
475Called when the client submits a reply in the ST_CUSTOM state. Usually
476handled internally by language plugins.
477
478=head3 exticmd (client string -- )
479
480Like C<extcmd>, but can be called before a player has logged in.
481
482Programmable plug-ins usually handle this event internally.
483
484=head3 client_destroy (client -- )
485
486Invoked when the client gets destroyed.
487
488

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines