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 |
26 |
|
27 |
This document briefly describes each plug-in event. It is also used to |
28 |
generate the event-list itself, so is always complete. Be careful wehn |
29 |
changing it, though. |
30 |
|
31 |
=head2 NOTATION |
32 |
|
33 |
The event description below uses a variant of the forth stack notation - |
34 |
an opening parenthesis followed by the type of each parameter, optionally |
35 |
followed by two dashes and the returning parameters. If the latter part is |
36 |
missing, the event will be invoked but cannot change wether the event gets |
37 |
processed. |
38 |
|
39 |
Return values are given by overriding (in Perl by calling C<cf::override>) |
40 |
with the return values, which will both stop further event processing and |
41 |
tell the caller that it wants to override normal processing. |
42 |
|
43 |
Even if no return values are supported, a plug-in can override (e.g. using |
44 |
C<cf::override> in Perl) event processing, basically short-circuiting |
45 |
it. For example, if you override from within a player BIRTH event, |
46 |
nothing much will happen with respect to the built-in processing, but if |
47 |
you override from within a player TELL event, the tell will be ignored |
48 |
(presumably your plug-in took care of it). |
49 |
|
50 |
|
51 |
=head2 ATTACHABLE EVENTS |
52 |
|
53 |
No time to document this, screw me. |
54 |
|
55 |
=head3 instantiate (object init-args...) |
56 |
|
57 |
An object was instantiated. |
58 |
|
59 |
For objects, this event occurs when a map is loaded for the first time |
60 |
when it was instantiated from an archetype, or when the object was created |
61 |
dynamically. The arguments are as specified in the C<attach> attribute of |
62 |
the object or archetype. |
63 |
|
64 |
This is useful to initialise any per-object state you might need. |
65 |
|
66 |
=head3 reattach (object) |
67 |
|
68 |
Invoked whenever attachments/plug-ins need to get reattached to the |
69 |
object. This usually happens when it was loaded from disk, or when the |
70 |
server was reloaded. This event will only be generated if the object has |
71 |
attachments. |
72 |
|
73 |
=head3 clone (object destination) |
74 |
|
75 |
An object with _attached plugin_ is cloned, that is, a copy was made. The |
76 |
copy automatically has all attachments the original object had. The perl |
77 |
variables get copied in a shallow way (references are shared between |
78 |
instances). If this is not the behaviour you need, you have to adjust the |
79 |
B<destination> object as you see fit. |
80 |
|
81 |
=head3 destroy (object -- ) |
82 |
|
83 |
Invoked when the deliantra object gets destroyed, and only when the object |
84 |
has a handler for this event. This event can occur many times, as its |
85 |
called when the in-memory object is destroyed, not when the object itself |
86 |
dies. |
87 |
|
88 |
|
89 |
=head2 OBJECT EVENTS |
90 |
|
91 |
Object events always relate to a specific object, which is always the |
92 |
first argument. Not all events get generated for every object, some are |
93 |
specific to an object type. |
94 |
|
95 |
=head3 add_bonus (item creator difficulty max_magic flags -- ) |
96 |
|
97 |
A basic item has been created (e.g. for shops, monsters drops etc.) |
98 |
that needs bonus values applied. The B<creator> object is a template |
99 |
object that can be used to inherit stuff (and can be NULL). Flags is a |
100 |
combination of GT_ENVIRONMENT (???) or GT_STARTEQUIP (set FLAG_STARTEQUIP |
101 |
on item or set its value to 0) or GT_MINIMAL (???) |
102 |
|
103 |
When overriden, built-in bonus generation is skipped, otherwise |
104 |
treasure generation continues as it would without this hook. |
105 |
|
106 |
In general, if flags != 0 or creator != 0 you should just return and leave |
107 |
item generation to the standard code. |
108 |
|
109 |
=head3 remove (object -- ) |
110 |
|
111 |
Invoked before the object is removed from its environment. |
112 |
|
113 |
=head3 insert (object -- ) |
114 |
|
115 |
Called after the object was inserted into a container or map. |
116 |
|
117 |
=head3 tick (object -- ) |
118 |
|
119 |
Invoked whenever the object "ticks", i.e. has positive B<speed_left>. Only |
120 |
during ticks should an objetc process any movement or other events. |
121 |
|
122 |
=head3 kill (object hitter -- ) |
123 |
|
124 |
Invoked whenever an object was killed (hp < 0 caused by an attack) and is |
125 |
about to get removed. Overriding processing will skip removal, but to do |
126 |
this successfully you have to keep the object from dieing, otherwise the |
127 |
event gets invoked again and again. |
128 |
|
129 |
=head3 apply (object who -- applytype) |
130 |
|
131 |
Invoked whenever the object is being applied in some way. The applytype is one of: |
132 |
|
133 |
=over 4 |
134 |
|
135 |
=item B<0> player or monster can't apply objects of that type |
136 |
|
137 |
=item B<1> has been applied, or there was an error applying the object |
138 |
|
139 |
=item B<2> objects of that type can't be applied if not in inventory |
140 |
|
141 |
=back |
142 |
|
143 |
=head3 reset (object) |
144 |
|
145 |
Invoked whenever the object is initialised on a map after it was |
146 |
loaded. This can be used to emulate shop-floor behaviour for example. |
147 |
|
148 |
=head3 throw (object thrower) |
149 |
|
150 |
Invoked when an B<object> is thrown by B<thrower>. |
151 |
|
152 |
=head3 stop (object -- ) |
153 |
|
154 |
Invoked when a thrown B<object> (arrow, other stuff) hits something and is |
155 |
thus being "stopped". |
156 |
|
157 |
=head3 can_apply (who object -- reason) |
158 |
|
159 |
=head3 can_be_applied (object who -- reason) |
160 |
|
161 |
Check wether the B<object> can be applied/readied/etc. by the |
162 |
object B<who> and return reason otherwise. Reason is a bitset composed of |
163 |
C<CAN_APPLY_*>-flags. |
164 |
|
165 |
=head3 be_ready (object who -- success) |
166 |
|
167 |
=head3 ready (who object -- success) |
168 |
|
169 |
Invoked whenever an B<object> is being applied by object B<who>. See |
170 |
I<can_apply> for an alternative if you just want to check wether something |
171 |
can apply an object. |
172 |
|
173 |
=head3 be_unready (object who -- deleted) |
174 |
|
175 |
=head3 unready (who object -- deleted) |
176 |
|
177 |
Unwield/unapply/unready the given spell/weapon/skill/etc. B<object>, |
178 |
currently applied by B<who>. If your override, make sure you give 'who' |
179 |
(if it is a player) an indication of whats wrong. Must return true if the |
180 |
object was freed. |
181 |
|
182 |
=head3 use_skill (skill who part direction stringarg -- ) |
183 |
|
184 |
Invoked whenever a skill is used by somebody or something. |
185 |
|
186 |
=head3 cast_spell (spell owner casting_object direction stringarg -- ) |
187 |
|
188 |
Invoked whenever a given spell is cast by B<casting_object> (used by |
189 |
B<owner>). |
190 |
|
191 |
=head3 drop (object who -- ) |
192 |
|
193 |
Invoked whenever an item gets dropped by somebody, e.g. as a result of a |
194 |
drop command. |
195 |
|
196 |
=head3 drop_on (floor object who -- ) |
197 |
|
198 |
Invoked whenever some B<object> is being dropped on the B<floor> object. |
199 |
|
200 |
=head3 say (object player message) |
201 |
|
202 |
Invoked whenever the I<object> can hear a B<message> being said by |
203 |
B<player> in its vicinity. |
204 |
|
205 |
=head3 monster_move (monster enemy -- ) |
206 |
|
207 |
Invoked whenever the B<monster> tries to move, just after B<enemy> and |
208 |
other parameters have been determined, but before movement is actually |
209 |
executed. |
210 |
|
211 |
=head3 attack (object hitter -- damage) |
212 |
|
213 |
Object gets attacked by somebody - when overriden, should return the |
214 |
damage that has been dealt. |
215 |
|
216 |
=head3 skill_attack (attacker victim message skill -- success) |
217 |
|
218 |
Invoked whenever an B<attacker> attacks B<victim> using a B<skill> (skill |
219 |
can be C<undef>). B<message> is the message that describes the attack when |
220 |
damage is done. |
221 |
|
222 |
=head3 weapon_attack (weapon hitter victim) |
223 |
|
224 |
Invoked whenever an object is used as a B<weapon> by B<hitter> to attack |
225 |
B<victim>. |
226 |
|
227 |
=head3 inscribe_note (book pl message skill -- ) |
228 |
|
229 |
Used whenever a book gets inscribed with a message. |
230 |
|
231 |
=head3 trigger (object who -- ) |
232 |
|
233 |
Invoked whenever a lever-like B<object> has been activated/triggered in some |
234 |
(manual) way. |
235 |
|
236 |
=head3 move_trigger (object victim originator -- ) |
237 |
|
238 |
Invoked whenever a trap-like B<object> has been activated, usually by |
239 |
moving onto it. This includes not just traps, but also buttons, holes, |
240 |
signs and similar stuff. |
241 |
|
242 |
=head3 open (container who -- ) |
243 |
|
244 |
Invoked whenever a container gets opened. When overriden, the container will not |
245 |
get opened, but you must tell op about the reason. |
246 |
|
247 |
=head3 close (container who -- ) |
248 |
|
249 |
Invoked whenever a container gets closed. When overriden, the container |
250 |
will not get closed, but you must tell op about the reason. This event |
251 |
is not crash-safe, i.e. containers might be closed due to a server crash |
252 |
without this event being invoked. |
253 |
|
254 |
=head3 blocked_move (self who -- do_blocked) |
255 |
|
256 |
Invoked when an C<who> tries to move to the same space as C<self>, |
257 |
C<self>'s C<move_block> causes blocked movement for C<who> and nothing |
258 |
else explicitly allows movement to this space. |
259 |
|
260 |
Should return true when C<who> is blocked, i.e., should not be allowed to |
261 |
move onto C<self>. |
262 |
|
263 |
When not overriding, normal blocked_move (blocked_link) processing will |
264 |
happen. |
265 |
|
266 |
|
267 |
=head2 GLOBAL EVENTS |
268 |
|
269 |
Global events have no relation to specific objects. |
270 |
|
271 |
=head3 cleanup () |
272 |
|
273 |
Called when the server is cleaning up, just before it calls exit. |
274 |
|
275 |
=head3 clock () |
276 |
|
277 |
Is invoked on every server tick, usually every 0.12 seconds. |
278 |
|
279 |
=head3 resource_update () |
280 |
|
281 |
Is invoked after each time the server reloads its resources, which is |
282 |
usually one of the earliest things it does when starting up. |
283 |
|
284 |
|
285 |
=head2 PLAYER EVENTS |
286 |
|
287 |
Player events always have a player object as first argument. |
288 |
|
289 |
=head3 birth (player) |
290 |
|
291 |
Invoked as very first thing after creating a player. |
292 |
|
293 |
=head3 quit (player) |
294 |
|
295 |
Invoked wheneever a player quits, before actually removing him/her. |
296 |
|
297 |
=head3 kick (player params -- ) |
298 |
|
299 |
Invoked when the given player is being kicked, before the kick is |
300 |
executed. |
301 |
|
302 |
=head3 load (player -- ) |
303 |
|
304 |
Invoked whenever after a player has been loaded from disk, but before |
305 |
actual activation/login. |
306 |
|
307 |
=head3 save (player -- ) |
308 |
|
309 |
Invoked just before a player gets serialised. |
310 |
|
311 |
=head3 save_done (player -- ) |
312 |
|
313 |
Invoked just after a player was serialised. |
314 |
|
315 |
=head3 connect (player -- ) |
316 |
|
317 |
Invoked just after the player object was connected to a client. |
318 |
|
319 |
=head3 disconnect (player -- ) |
320 |
|
321 |
Invoked just before the player gets disconnected from the client. |
322 |
|
323 |
=head3 login (player) |
324 |
|
325 |
Invoked whenever a player logs in. |
326 |
|
327 |
=head3 logout (player cleanly -- ) |
328 |
|
329 |
Invoked whenever a player logs out, gets disconnected etc. |
330 |
|
331 |
=head3 death (player) |
332 |
|
333 |
Invoked whenever a player dies, before the death actually gets processed. |
334 |
|
335 |
=head3 map_change (player newmap x y -- ) |
336 |
|
337 |
Invoked before a player moves from one map to another, can override the movement. |
338 |
|
339 |
=head3 region_change (player newregion oldregion -- ) |
340 |
|
341 |
Invoked when a player entered a new region. Cannot be overriden. |
342 |
|
343 |
=head3 command (player command args -- time) |
344 |
|
345 |
Execute a user command sent by the client - this is invoked for I<all> |
346 |
command,s so should not normally be hooked. |
347 |
|
348 |
=head3 unknown_command (player command args -- time) |
349 |
|
350 |
Execute a user command sent by the client that isn't known to the |
351 |
server. Programmable plug-ins usually handle this event internally. |
352 |
|
353 |
=head3 extcmd (player string) |
354 |
|
355 |
Invoked whenever a client issues the C<extcmd> protocol command. |
356 |
Programmable plug-ins usually handle this event internally. |
357 |
|
358 |
=head3 move (player direction -- ) |
359 |
|
360 |
Called whenever the player is supposed to move or attack. The handler |
361 |
must handle the cases of speed_left or weapon_sp_left being negative, |
362 |
fire being on, is responsible for decreaseing the speed_left value |
363 |
on successful moves etc. etc.. When overriden, must return a boolean |
364 |
indicating wether a move could be effected. |
365 |
|
366 |
=head3 pray_altar (player altar skill -- ) |
367 |
|
368 |
Invoked whenever the B<player> prays over an B<altar>, using the given B<skill>. |
369 |
|
370 |
=head3 tell (player name message -- ) |
371 |
|
372 |
Invoked whenever the player uses the B<tell> or B<reply> command, before |
373 |
it gets processed. |
374 |
|
375 |
=head3 told (player player message -- ) |
376 |
|
377 |
Invoked right before a message is being told to a player using B<tell> or |
378 |
B<reply>. |
379 |
|
380 |
=head3 say (player message --) |
381 |
|
382 |
=head3 chat (player message --) |
383 |
|
384 |
=head3 shout (player message --) |
385 |
|
386 |
Invoked whenever the player uses the B<say>, B<chat> or B<shout> command, |
387 |
before it gets processed. |
388 |
|
389 |
=head3 build (player builder map x y --) |
390 |
|
391 |
Players tries to build using C<builder> at (map+x+y). Is invoked after the |
392 |
usual sanity checks, so the coordinates are valid. |
393 |
|
394 |
|
395 |
=head2 MAP EVENTS |
396 |
|
397 |
These events are generally dependent on a map and thus all have a map |
398 |
as first argument. |
399 |
|
400 |
=head3 instantiate (map) |
401 |
|
402 |
Original B<map> has been loaded (e.g. on first use, or after a map |
403 |
reset). |
404 |
|
405 |
=head3 swapin (map) |
406 |
|
407 |
Invoked when a previously swapped-out temporary B<map> has been loaded again. |
408 |
|
409 |
=head3 swapout (map) |
410 |
|
411 |
Invoked after a B<map> has been swapped out to disk. |
412 |
|
413 |
=head3 reset (map) |
414 |
|
415 |
Invoked when a B<map> gets reset. |
416 |
|
417 |
=head3 clean (map) |
418 |
|
419 |
Invoked when a temporary B<map> gets deleted on-disk. |
420 |
|
421 |
=head3 enter (map player x y -- ) |
422 |
|
423 |
Invoked whenever a player tries to enter the B<map>, while he/she is still |
424 |
on the old map. Overriding means the player won't be able to enter, and, |
425 |
if newmap/x/y are given, will be redirected to that map instead. |
426 |
|
427 |
=head3 leave (map player -- ) |
428 |
|
429 |
Invoked whenever a player tries to leave the B<map>. Overriding means the |
430 |
player won't be able to leave. |
431 |
|
432 |
=head3 trigger (map connection state what? who? -- ) |
433 |
|
434 |
Invoked whenever something activates a B<connection> on the B<map>. If B<state> |
435 |
is true the connection was 'state' and if false it is 'released'. |
436 |
|
437 |
|
438 |
=head2 CLIENT EVENTS |
439 |
|
440 |
These events are very similar to player events, but they are might be |
441 |
handled asynchronously as soon as the command reaches the server, even when |
442 |
the player hasn't logged in yet (meaning there is no player yet). |
443 |
|
444 |
=head3 connect (client -- ) |
445 |
|
446 |
Called as soon as a new connection to the server is established. Should |
447 |
not be overriden. |
448 |
|
449 |
=head3 version (client string -- ) |
450 |
|
451 |
Called as soon as the version command from the client is received |
452 |
(normally the very first command sent). |
453 |
|
454 |
=head3 setup (client string -- ) |
455 |
|
456 |
Client sent the setup command to negotiate parameters. Handling is |
457 |
mandatory and done by F<login.ext>. |
458 |
|
459 |
=head3 addme (client -- ) |
460 |
|
461 |
The client sent an addme, thus ending the initial handshaking. Handling is mandatory |
462 |
and done by F<login.ext>. |
463 |
|
464 |
=head3 reply (client replystring -- ) |
465 |
|
466 |
Called when the client submits a reply in the ST_CUSTOM state. Usually |
467 |
handled internally by language plugins. |
468 |
|
469 |
=head3 exticmd (client string -- ) |
470 |
|
471 |
Like C<extcmd>, but can be called before a player has logged in. |
472 |
|
473 |
Programmable plug-ins usually handle this event internally. |
474 |
|
475 |
=head3 client_destroy (client -- ) |
476 |
|
477 |
Invoked when the client gets destroyed. |
478 |
|
479 |
|