1 |
=head1 DELIANTRA PLUG-IN EVENTS |
2 |
|
3 |
This document briefly describes each plug-in event. It is also used to |
4 |
generate the event-list itself, so is always complete. Be careful wehn |
5 |
changing it, though. |
6 |
|
7 |
=head2 NOTATION |
8 |
|
9 |
the event description below uses a variant of the forth stack notation - |
10 |
an opening parenthesis followed by the type of each parameter, optionally |
11 |
followed by two dashes and the returning parameters. If the latter is |
12 |
missing, the event will be invoked but cannot change wether the event gets |
13 |
processed. |
14 |
|
15 |
If it is specified (even if no return values are supported), a plug-in |
16 |
can override (e.g. using C<cf::override> in Perl) event processing, |
17 |
basically short-circuiting it. For example, if you override from within a |
18 |
player BIRTH event, nothing much will happen with respect to the built-in |
19 |
processing, but if you override from within a player TELL event, the tell |
20 |
will be ignored (presumably your plug-in took care of it). |
21 |
|
22 |
|
23 |
=head2 ATTACHABLE EVENTS |
24 |
|
25 |
No time to document this, screw me. |
26 |
|
27 |
=head3 instantiate (object init-args...) |
28 |
|
29 |
An object was instantiated. |
30 |
|
31 |
For objects, this event occurs when a map is loaded for the first time |
32 |
when it was instantiated from an archetype, or when the object was created |
33 |
dynamically. The arguments are as specified in the C<attach> attribute of |
34 |
the object or archetype. |
35 |
|
36 |
This is useful to initialise any per-object state you might need. |
37 |
|
38 |
=head3 reattach (object) |
39 |
|
40 |
Invoked whenever attachments/plug-ins need to get reattached to the |
41 |
object. This usually happens when it was loaded from disk, or when the |
42 |
server was reloaded. This event will only be generated if the object has |
43 |
attachments. |
44 |
|
45 |
=head3 clone (object destination) |
46 |
|
47 |
An object with _attached plugin_ is cloned, that is, a copy was made. The |
48 |
copy automatically has all attachments the original object had. The perl |
49 |
variables get copied in a shallow way (references are shared between |
50 |
instances). If this is not the behaviour you need, you have to adjust the |
51 |
B<destination> object as you see fit. |
52 |
|
53 |
=head3 destroy (object -- ) |
54 |
|
55 |
Invoked when the deliantra object gets destroyed, and only when the object |
56 |
has a handler for this event. This event can occur many times, as its |
57 |
called when the in-memory object is destroyed, not when the object itself |
58 |
dies. |
59 |
|
60 |
|
61 |
=head2 OBJECT EVENTS |
62 |
|
63 |
Object events always relate to a specific object, which is always the |
64 |
first argument. Not all events get generated for every object, some are |
65 |
specific to an object type. |
66 |
|
67 |
=head3 add_bonus (item creator difficulty max_magic flags -- ) |
68 |
|
69 |
A basic item has been created (e.g. for shops, monsters drops etc.) |
70 |
that needs bonus values applied. The B<creator> object is a template |
71 |
object that can be used to inherit stuff (and can be NULL). Flags is a |
72 |
combination of GT_ENVIRONMENT (???) or GT_STARTEQUIP (set FLAG_STARTEQUIP |
73 |
on item or set its value to 0) or GT_MINIMAL (???) |
74 |
|
75 |
When overriden, built-in bonus generation is skipped, otherwise |
76 |
treasure generation continues as it would without this hook. |
77 |
|
78 |
In general, if flags != 0 or creator != 0 you should just return and leave |
79 |
item generation to the standard code. |
80 |
|
81 |
=head3 remove (object -- ) |
82 |
|
83 |
Invoked before the object is removed from its environment. |
84 |
|
85 |
=head3 insert (object -- ) |
86 |
|
87 |
Called after the object was inserted into a container or map. |
88 |
|
89 |
=head3 tick (object -- ) |
90 |
|
91 |
Invoked whenever the object "ticks", i.e. has positive B<speed_left>. Only |
92 |
during ticks should an objetc process any movement or other events. |
93 |
|
94 |
=head3 kill (object hitter -- ) |
95 |
|
96 |
Invoked whenever an object was killed (hp < 0 caused by an attack) and is |
97 |
about to get removed. Overriding processing will skip removal, but to do |
98 |
this successfully you have to keep the object from dieing, otherwise the |
99 |
event gets invoked again and again. |
100 |
|
101 |
=head3 apply (object who -- applytype) |
102 |
|
103 |
Invoked whenever the object is being applied in some way. The applytype is one of: |
104 |
|
105 |
=head3 auto_apply (object) |
106 |
|
107 |
Invoked whenever the object is automatically applied (as for example shop tiles |
108 |
are on map instantiation). See also the 'auto_apply' flag to enforce auto apply on |
109 |
any object. |
110 |
|
111 |
=over 4 |
112 |
|
113 |
=item B<0> player or monster can't apply objects of that type |
114 |
|
115 |
=item B<1> has been applied, or there was an error applying the object |
116 |
|
117 |
=item B<2> objects of that type can't be applied if not in inventory |
118 |
|
119 |
=back |
120 |
|
121 |
=head3 throw (object thrower) |
122 |
|
123 |
Invoked when an B<object> is thrown by B<thrower>. |
124 |
|
125 |
=head3 stop (object -- ) |
126 |
|
127 |
Invoked when a thrown B<object> (arrow, other stuff) hits something and is |
128 |
thus being "stopped". |
129 |
|
130 |
=head3 can_apply (who object -- reason) |
131 |
|
132 |
=head3 can_be_applied (object who -- reason) |
133 |
|
134 |
Check wether the B<object> can be applied/readied/etc. by the |
135 |
object B<who> and return reason otherwise. Reason is a bitset composed of |
136 |
C<CAN_APPLY_*>-flags. |
137 |
|
138 |
=head3 be_ready (object who -- success) |
139 |
|
140 |
=head3 ready (who object -- success) |
141 |
|
142 |
Invoked whenever an B<object> is being applied by object B<who>. See |
143 |
I<can_apply> for an alternative if you just want to check wether something |
144 |
can apply an object. |
145 |
|
146 |
=head3 be_unready (object who -- deleted) |
147 |
|
148 |
=head3 unready (who object -- deleted) |
149 |
|
150 |
Unwield/unapply/unready the given spell/weapon/skill/etc. B<object>, |
151 |
currently applied by B<who>. If your override, make sure you give 'who' |
152 |
(if it is a player) an indication of whats wrong. Must return true if the |
153 |
object was freed. |
154 |
|
155 |
=head3 use_skill (skill who part direction stringarg -- ) |
156 |
|
157 |
Invoked whenever a skill is used by somebody or something. |
158 |
|
159 |
=head3 cast_spell (spell owner casting_object direction stringarg -- ) |
160 |
|
161 |
Invoked whenever a given spell is cast by B<casting_object> (used by |
162 |
B<owner>). |
163 |
|
164 |
=head3 drop (object who -- ) |
165 |
|
166 |
Invoked whenever an item gets dropped by somebody, e.g. as a result of a |
167 |
drop command. |
168 |
|
169 |
=head3 drop_on (floor object who -- ) |
170 |
|
171 |
Invoked whenever some B<object> is being dropped on the B<floor> object. |
172 |
|
173 |
=head3 say (object player message) |
174 |
|
175 |
Invoked whenever the I<object> can hear a B<message> being said by |
176 |
B<player> in its vicinity. |
177 |
|
178 |
=head3 monster_move (monster enemy -- ) |
179 |
|
180 |
Invoked whenever the B<monster> tries to move, just after B<enemy> and |
181 |
other parameters have been determined, but before movement is actually |
182 |
executed. |
183 |
|
184 |
=head3 attack (object hitter -- damage) |
185 |
|
186 |
Object gets attacked by somebody - when overriden, should return the |
187 |
damage that has been dealt. |
188 |
|
189 |
=head3 skill_attack (attacker victim message skill -- success) |
190 |
|
191 |
Invoked whenever an B<attacker> attacks B<victim> using a B<skill> (skill |
192 |
cna be C<undef>). B<message> is the message that describes the attack when |
193 |
damage is done. |
194 |
|
195 |
=head3 weapon_attack (weapon hitter victim) |
196 |
|
197 |
Invoked whenever an object is used as a B<weapon> by B<hitter> to attack |
198 |
B<victim>. |
199 |
|
200 |
=head3 inscribe_note (book pl message skill -- ) |
201 |
|
202 |
Used whenever a book gets inscribed with a message. |
203 |
|
204 |
=head3 trigger (object who -- ) |
205 |
|
206 |
Invoked whenever a lever-like B<object> has been activated/triggered in some |
207 |
(manual) way. |
208 |
|
209 |
=head3 move_trigger (object victim originator -- ) |
210 |
|
211 |
Invoked whenever a trap-like B<object> has been activated, usually by |
212 |
moving onto it. This includes not just traps, but also buttons, holes, |
213 |
signs and similar stuff. |
214 |
|
215 |
=head3 open (container who -- ) |
216 |
|
217 |
Invoked whenever a container gets opened. When overriden, the container will not |
218 |
get opened, but you must tell op about the reason. |
219 |
|
220 |
=head3 close (container who -- ) |
221 |
|
222 |
Invoked whenever a container gets closed. When overriden, the container |
223 |
will not get closed, but you must tell op about the reason. This event |
224 |
is not crash-safe, i.e. containers might be closed due to a server crash |
225 |
without this event being invoked. |
226 |
|
227 |
|
228 |
=head2 GLOBAL EVENTS |
229 |
|
230 |
Global events have no relation to specific objects. |
231 |
|
232 |
=head3 cleanup () |
233 |
|
234 |
Called when the server is cleaning up, just before it calls exit. |
235 |
|
236 |
=head3 clock () |
237 |
|
238 |
Is invoked on every server tick, usually every 0.12 seconds. |
239 |
|
240 |
=head3 resource_update () |
241 |
|
242 |
Is invoked after each time the server reloads its resources, which is |
243 |
usually one of the earliest things it does when starting up. |
244 |
|
245 |
|
246 |
=head2 PLAYER EVENTS |
247 |
|
248 |
Player events always have a player object as first argument. |
249 |
|
250 |
=head3 birth (player) |
251 |
|
252 |
Invoked as very first thing after creating a player. |
253 |
|
254 |
=head3 quit (player) |
255 |
|
256 |
Invoked wheneever a player quits, before actually removing him/her. |
257 |
|
258 |
=head3 kick (player params -- ) |
259 |
|
260 |
Invoked when the given player is being kicked, before the kick is |
261 |
executed. |
262 |
|
263 |
=head3 load (player -- ) |
264 |
|
265 |
Invoked whenever a player has been loaded from disk, but before |
266 |
actual login. |
267 |
|
268 |
=head3 save (player -- ) |
269 |
|
270 |
Invoked just before a player gets serialised. |
271 |
|
272 |
=head3 save_done (player -- ) |
273 |
|
274 |
Invoked just after a player was serialised. |
275 |
|
276 |
=head3 connect (player -- ) |
277 |
|
278 |
Invoked just after the player object was connected to a client. |
279 |
|
280 |
=head3 disconnect (player -- ) |
281 |
|
282 |
Invoked just before the player gets disconnected from the client. |
283 |
|
284 |
=head3 login (player) |
285 |
|
286 |
Invoked whenever a player logs in. |
287 |
|
288 |
=head3 logout (player cleanly -- ) |
289 |
|
290 |
Invoked whenever a player logs out, gets disconnected etc. |
291 |
|
292 |
=head3 death (player) |
293 |
|
294 |
Invoked whenever a player dies, before the death actually gets processed. |
295 |
|
296 |
=head3 map_change (player newmap x y -- ) |
297 |
|
298 |
Invoked before a player moves from one map to another, can override the movement. |
299 |
|
300 |
=head3 region_change (player newregion oldregion -- ) |
301 |
|
302 |
Invoked when a player entered a new region. Cannot be overriden. |
303 |
|
304 |
=head3 command (player command args -- time) |
305 |
|
306 |
Execute a user command send by the client. Programmable plug-ins usually |
307 |
handle this event internally. |
308 |
|
309 |
=head3 extcmd (player string) |
310 |
|
311 |
Invoked whenever a client issues the C<extcmd> protocol command. |
312 |
Programmable plug-ins usually handle this event internally. |
313 |
|
314 |
=head3 move (player direction -- ) |
315 |
|
316 |
Called whenever the player is supposed to move or attack. The handler |
317 |
must handle the cases of speed_left or weapon_sp_left being negative, |
318 |
fire being on, is responsible for decreaseing the speed_left value |
319 |
on successful moves etc. etc.. When overriden, must return a boolean |
320 |
indicating wether a move could be effected. |
321 |
|
322 |
=head3 pray_altar (player altar skill -- ) |
323 |
|
324 |
Invoked whenever the B<player> prays over an B<altar>, using the given B<skill>. |
325 |
|
326 |
=head3 tell (player name message -- ) |
327 |
|
328 |
Invoked whenever the player uses the B<tell> or B<reply> command, before |
329 |
it gets processed. |
330 |
|
331 |
=head3 told (player player message -- ) |
332 |
|
333 |
Invoked right before a message is being told to a player using B<tell> or |
334 |
B<reply>. |
335 |
|
336 |
=head3 say (player message --) |
337 |
|
338 |
=head3 chat (player message --) |
339 |
|
340 |
=head3 shout (player message --) |
341 |
|
342 |
Invoked whenever the player uses the B<say>, B<chat> or B<shout> command, |
343 |
before it gets processed. |
344 |
|
345 |
|
346 |
=head2 MAP EVENTS |
347 |
|
348 |
These events are generally dependent on a map and thus all have a map |
349 |
as first argument. |
350 |
|
351 |
=head3 instantiate (map) |
352 |
|
353 |
Original B<map> has been loaded (e.g. on first use, or after a map |
354 |
reset). |
355 |
|
356 |
=head3 swapin (map) |
357 |
|
358 |
Invoked when a previously swapped-out temporary B<map> has been loaded again. |
359 |
|
360 |
=head3 swapout (map) |
361 |
|
362 |
Invoked after a B<map> has been swapped out to disk. |
363 |
|
364 |
=head3 reset (map) |
365 |
|
366 |
Invoked when a B<map> gets reset. |
367 |
|
368 |
=head3 clean (map) |
369 |
|
370 |
Invoked when a temporary B<map> gets deleted on-disk. |
371 |
|
372 |
=head3 enter (map player x y -- ) |
373 |
|
374 |
Invoked whenever a player tries to enter the B<map>, while he/she is still |
375 |
on the old map. Overriding means the player won't be able to enter, and, |
376 |
if newmap/x/y are given, will be redirected to that map instead. |
377 |
|
378 |
=head3 leave (map player -- ) |
379 |
|
380 |
Invoked whenever a player tries to leave the B<map>. Overriding means the |
381 |
player won't be able to leave. |
382 |
|
383 |
=head3 trigger (map connection state -- ) |
384 |
|
385 |
Invoked whenever something activates a B<connection> on the B<map>. If B<state> |
386 |
is true the connection was 'state' and if false it is 'released'. |
387 |
|
388 |
|
389 |
=head2 CLIENT EVENTS |
390 |
|
391 |
These events are very similar to player events, but they are might be |
392 |
handled asynchronously as soon as the command reaches the server, even when |
393 |
the player hasn't logged in yet (meaning there is no player yet). |
394 |
|
395 |
=head3 connect (client -- ) |
396 |
|
397 |
Called as soon as a new connection to the server is established. Should |
398 |
not be overriden. |
399 |
|
400 |
=head3 setup (client string -- ) |
401 |
|
402 |
Client sent the setup command to negotiate parameters. Handling is |
403 |
mandatory and done by F<login.ext>. |
404 |
|
405 |
=head3 addme (client -- ) |
406 |
|
407 |
The client sent an addme, thus ending the initial handshaking. Handling is mandatory |
408 |
and done by F<login.ext>. |
409 |
|
410 |
=head3 reply (client replystring -- ) |
411 |
|
412 |
Called when the client submits a reply in the ST_CUSTOM state. Usually |
413 |
handled internally by language plugins. |
414 |
|
415 |
=head3 exticmd (client string -- ) |
416 |
|
417 |
Like C<extcmd>, but can be called before a player has logged in. |
418 |
|
419 |
Programmable plug-ins usually handle this event internally. |
420 |
|