1 | =head1 CROSSFIRE+ PLUG-IN EVENTS |
1 | =begin comment |
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2 | |
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3 | This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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4 | |
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5 | Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
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6 | |
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7 | Deliantra is free software: you can redistribute it and/or modify it under |
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8 | the terms of the Affero GNU General Public License as published by the |
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9 | Free Software Foundation, either version 3 of the License, or (at your |
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10 | option) any later version. |
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11 | |
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12 | This program is distributed in the hope that it will be useful, |
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | GNU General Public License for more details. |
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16 | |
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17 | You should have received a copy of the Affero GNU General Public License |
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18 | and the GNU General Public License along with this program. If not, see |
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19 | <http://www.gnu.org/licenses/>. |
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20 | |
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21 | The authors can be reached via e-mail to <support@deliantra.net> |
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22 | |
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23 | =end comment |
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24 | |
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25 | =head1 DELIANTRA PLUG-IN EVENTS |
2 | |
26 | |
3 | This document briefly describes each plug-in event. It is also used to |
27 | 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 |
28 | generate the event-list itself, so is always complete. Be careful wehn |
5 | changing it, though. |
29 | changing it, though. |
6 | |
30 | |
7 | =head2 NOTATION |
31 | =head2 NOTATION |
8 | |
32 | |
9 | the event description below uses a variant of the forth stack notation - |
33 | The event description below uses a variant of the forth stack notation - |
10 | an opening parenthesis followed by the type of each parameter, optionally |
34 | an opening parenthesis followed by the type of each parameter, optionally |
11 | followed by two dashes and the returning parameters. If the latter is |
35 | followed by two dashes and the returning parameters. If the latter part is |
12 | missing, the event will be invoked but cannot change wether the event gets |
36 | missing, the event will be invoked but cannot change wether the event gets |
13 | processed. |
37 | processed. |
14 | |
38 | |
15 | If it is specified (even if no return values are supported), a plug-in |
39 | Return values are given by overriding (in Perl by calling C<cf::override>) |
16 | can override (e.g. using C<cf::override> in Perl) event processing, |
40 | with the return values, which will both stop further event processing and |
17 | basically short-circuiting it. For example, if you override from within a |
41 | tell the caller that it wants to override normal processing. |
18 | player BIRTH event, nothing much will happen with respect to the built-in |
42 | |
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43 | Even if no return values are supported, a plug-in can override (e.g. using |
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44 | C<cf::override> in Perl) event processing, basically short-circuiting |
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45 | it. For example, if you override from within a player BIRTH event, |
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46 | nothing much will happen with respect to the built-in processing, but if |
19 | processing, but if you override from within a player TELL event, the tell |
47 | you override from within a player TELL event, the tell will be ignored |
20 | will 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 | |
25 | Object events always relate to a specific object, which is always the |
53 | No time to document this, screw me. |
26 | first argument. Not all events get generated for every object, some are |
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27 | specific to an object type. |
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28 | |
54 | |
29 | =head3 instantiate (object init-args...) |
55 | =head3 instantiate (object init-args...) |
30 | |
56 | |
31 | An archetype was instantiated into an object. This event occurs when |
57 | An object was instantiated. |
32 | a map is loaded for the first time, or when the object was created |
58 | |
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59 | For objects, this event occurs when a map is loaded for the first time |
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60 | 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 |
61 | dynamically. The arguments are as specified in the C<attach> attribute of |
34 | the object or archetype. |
62 | the object or archetype. |
35 | |
63 | |
36 | This is useful to initialise any per-object state you might need. |
64 | This is useful to initialise any per-object state you might need. |
37 | |
65 | |
… | |
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42 | server was reloaded. This event will only be generated if the object has |
70 | server was reloaded. This event will only be generated if the object has |
43 | attachments. |
71 | attachments. |
44 | |
72 | |
45 | =head3 clone (object destination) |
73 | =head3 clone (object destination) |
46 | |
74 | |
47 | An object with _attached extension_ is cloned, that is, a copy was |
75 | An object with _attached plugin_ is cloned, that is, a copy was made. The |
48 | made. The copy automatically has all attachments the original object |
76 | copy automatically has all attachments the original object had. The perl |
49 | had. The perl variables get copied in a shallow way (references are shared |
77 | variables get copied in a shallow way (references are shared between |
50 | between instances). If this is not the behaviour you need, you have to |
78 | instances). If this is not the behaviour you need, you have to adjust the |
51 | adjust the B<destination> object as you see fit. |
79 | B<destination> object as you see fit. |
52 | |
80 | |
53 | =head3 destroy (object) |
81 | =head3 destroy (object -- ) |
54 | |
82 | |
55 | Invoked when the crossfire object gets destroyed, and only when the object |
83 | 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 |
84 | 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 |
85 | called when the in-memory object is destroyed, not when the object itself |
58 | dies. |
86 | dies. |
59 | |
87 | |
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88 | |
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89 | =head2 OBJECT EVENTS |
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90 | |
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91 | Object events always relate to a specific object, which is always the |
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92 | first argument. Not all events get generated for every object, some are |
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93 | specific to an object type. |
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94 | |
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95 | =head3 add_bonus (item creator difficulty max_magic flags -- ) |
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96 | |
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97 | A basic item has been created (e.g. for shops, monsters drops etc.) |
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98 | that needs bonus values applied. The B<creator> object is a template |
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99 | object that can be used to inherit stuff (and can be NULL). Flags is a |
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100 | combination of GT_ENVIRONMENT (???) or GT_STARTEQUIP (set FLAG_STARTEQUIP |
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101 | on item or set its value to 0) or GT_MINIMAL (???) |
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102 | |
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103 | When overriden, built-in bonus generation is skipped, otherwise |
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104 | treasure generation continues as it would without this hook. |
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105 | |
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106 | In general, if flags != 0 or creator != 0 you should just return and leave |
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107 | item generation to the standard code. |
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108 | |
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109 | =head3 remove (object -- ) |
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110 | |
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111 | Invoked before the object is removed from its environment. |
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112 | |
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113 | =head3 insert (object -- ) |
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114 | |
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115 | Called after the object was inserted into a container or map. |
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116 | |
60 | =head3 tick (object) |
117 | =head3 tick (object -- ) |
61 | |
118 | |
62 | Invoked whenever the object "ticks", i.e. has positive B<speed_left>. Only |
119 | Invoked whenever the object "ticks", i.e. has positive B<speed_left>. Only |
63 | during ticks should an objetc process any movement or other events. |
120 | during ticks should an objetc process any movement or other events. |
64 | |
121 | |
65 | =head3 kill (object hitter -- ) |
122 | =head3 kill (object hitter -- ) |
66 | |
123 | |
67 | Invoked whenever an object is dead and about to get removed. Overriding |
124 | Invoked whenever an object was killed (hp < 0 caused by an attack) and is |
68 | processing will skip removal, but to do this successfully you have to |
125 | about to get removed. Overriding processing will skip removal, but to do |
69 | objetc from dieing, otherwise the event gets invoked again and again. |
126 | this successfully you have to keep the object from dieing, otherwise the |
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127 | event gets invoked again and again. |
70 | |
128 | |
71 | =head3 apply (object who -- applytype) |
129 | =head3 apply (object who -- applytype) |
72 | |
130 | |
73 | Invoked whenever the object is being applied in some way. The applytype is one of: |
131 | Invoked whenever the object is being applied in some way. The applytype is one of: |
74 | |
132 | |
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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 |
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142 | |
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143 | =head3 reset (object) |
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144 | |
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145 | Invoked whenever the object is initialised on a map after it was |
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146 | loaded. 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 | |
87 | Invoked when an B<object> is thrown by B<thrower>. |
150 | Invoked when an B<object> is thrown by B<thrower>. |
88 | |
151 | |
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114 | Unwield/unapply/unready the given spell/weapon/skill/etc. B<object>, |
177 | Unwield/unapply/unready the given spell/weapon/skill/etc. B<object>, |
115 | currently applied by B<who>. If your override, make sure you give 'who' |
178 | currently 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 |
117 | object was freed. |
180 | object was freed. |
118 | |
181 | |
119 | =head3 use_skill (skill who part direction strignarg -- ) |
182 | =head3 use_skill (skill who part direction stringarg -- ) |
120 | |
183 | |
121 | Invoked whenever a skill is used by somebody or something. |
184 | Invoked 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 | |
125 | Invoked whenever a given spell is cast by B<casting_object> (used by |
188 | Invoked whenever a given spell is cast by B<casting_object> (used by |
126 | B<owner>). |
189 | B<owner>). |
127 | |
190 | |
128 | =head3 drop (object who -- ) |
191 | =head3 drop (object who -- ) |
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151 | damage that has been dealt. |
214 | damage 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 | |
155 | Invoked whenever an B<attacker> attacks B<victim> using a B<skill> (skill |
218 | Invoked whenever an B<attacker> attacks B<victim> using a B<skill> (skill |
156 | cna be C<undef>). B<message> is the message that describes the attack when |
219 | can be C<undef>). B<message> is the message that describes the attack when |
157 | damage is done. |
220 | damage is done. |
158 | |
221 | |
159 | =head3 weapon_attack (weapon hitter victim) |
222 | =head3 weapon_attack (weapon hitter victim) |
160 | |
223 | |
161 | Invoked whenever an object is used as a B<weapon> by B<hitter> to attack |
224 | Invoked whenever an object is used as a B<weapon> by B<hitter> to attack |
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174 | |
237 | |
175 | Invoked whenever a trap-like B<object> has been activated, usually by |
238 | Invoked whenever a trap-like B<object> has been activated, usually by |
176 | moving onto it. This includes not just traps, but also buttons, holes, |
239 | moving onto it. This includes not just traps, but also buttons, holes, |
177 | signs and similar stuff. |
240 | signs and similar stuff. |
178 | |
241 | |
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242 | =head3 open (container who -- ) |
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243 | |
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244 | Invoked whenever a container gets opened. When overriden, the container will not |
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245 | get opened, but you must tell op about the reason. |
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246 | |
179 | =head3 close (container who -- ) |
247 | =head3 close (container who -- ) |
180 | |
248 | |
181 | Invoked whenever a container gets closed (this event is not yet reliable!). |
249 | Invoked whenever a container gets closed. When overriden, the container |
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250 | will not get closed, but you must tell op about the reason. This event |
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251 | is not crash-safe, i.e. containers might be closed due to a server crash |
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252 | without this event being invoked. |
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253 | |
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254 | =head3 blocked_move (self who -- do_blocked) |
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255 | |
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256 | Invoked when an C<who> tries to move to the same space as C<self>, |
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257 | C<self>'s C<move_block> causes blocked movement for C<who> and nothing |
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258 | else explicitly allows movement to this space. |
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259 | |
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260 | Should return true when C<who> is blocked, i.e., should not be allowed to |
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261 | move onto C<self>. |
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262 | |
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263 | When not overriding, normal blocked_move (blocked_link) processing will |
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264 | happen. |
182 | |
265 | |
183 | |
266 | |
184 | =head2 GLOBAL EVENTS |
267 | =head2 GLOBAL EVENTS |
185 | |
268 | |
186 | Global events have no relation to specific objects. |
269 | Global events have no relation to specific objects. |
187 | |
270 | |
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271 | =head3 cleanup () |
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272 | |
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273 | Called when the server is cleaning up, just before it calls exit. |
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274 | |
188 | =head3 clock ( ) |
275 | =head3 clock () |
189 | |
276 | |
190 | Is invoked on every server tick, usually every 0.12 seconds. |
277 | Is invoked on every server tick, usually every 0.12 seconds. |
191 | |
278 | |
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279 | =head3 resource_update () |
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280 | |
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281 | Is invoked after each time the server reloads its resources, which is |
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282 | usually one of the earliest things it does when starting up. |
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283 | |
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284 | |
192 | =head2 PLAYER EVENTS |
285 | =head2 PLAYER EVENTS |
193 | |
286 | |
194 | Player events always have a player object as first argument. |
287 | Player events always have a player object as first argument. |
195 | |
288 | |
196 | =head3 reattach (player) |
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197 | |
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198 | Invoked whenever attachments/plug-ins need to get reattached to the player |
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199 | object. This usually happens when the player gets loaded from disk, or |
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200 | when the server is reloaded. |
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201 | |
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202 | =head3 birth (player) |
289 | =head3 birth (player) |
203 | |
290 | |
204 | Invoked as very first thing after creating a player. |
291 | Invoked as very first thing after creating a player. |
205 | |
292 | |
206 | =head3 quit (player) |
293 | =head3 quit (player) |
207 | |
294 | |
208 | Invoked wheneever a player quits, before actually removing him/her. |
295 | Invoked wheneever a player quits, before actually removing him/her. |
209 | |
296 | |
210 | =head3 kick (player params -- ) |
297 | =head3 kick (player params -- ) |
211 | |
298 | |
212 | Invoked when the given plaer is being kicked, before the kick is executed. |
299 | Invoked when the given player is being kicked, before the kick is |
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300 | executed. |
213 | |
301 | |
214 | =head3 load (player) |
302 | =head3 load (player -- ) |
215 | |
303 | |
216 | Invoked whenever a player has been loaded from disk, but before |
304 | Invoked whenever a player has been loaded from disk, but before |
217 | actual login. |
305 | actual login. |
218 | |
306 | |
219 | =head3 save (player) |
307 | =head3 save (player -- ) |
220 | |
308 | |
221 | Invoked just before a player gets saved. |
309 | Invoked just before a player gets serialised. |
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310 | |
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311 | =head3 save_done (player -- ) |
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312 | |
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313 | Invoked just after a player was serialised. |
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314 | |
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315 | =head3 connect (player -- ) |
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316 | |
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317 | Invoked just after the player object was connected to a client. |
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318 | |
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319 | =head3 disconnect (player -- ) |
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320 | |
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321 | Invoked just before the player gets disconnected from the client. |
222 | |
322 | |
223 | =head3 login (player) |
323 | =head3 login (player) |
224 | |
324 | |
225 | Invoked whenever a player logs in. |
325 | Invoked whenever a player logs in. |
226 | |
326 | |
227 | =head3 logout (player) |
327 | =head3 logout (player cleanly -- ) |
228 | |
328 | |
229 | Invoked whenever a player logs out, gets disconnected etc. |
329 | Invoked whenever a player logs out, gets disconnected etc. |
230 | |
330 | |
231 | =head3 death (player) |
331 | =head3 death (player) |
232 | |
332 | |
233 | Invoked whenever a player dies, before the death actually gets processed. |
333 | Invoked whenever a player dies, before the death actually gets processed. |
234 | |
334 | |
235 | =head3 map_change (player oldmap newmap) |
335 | =head3 map_change (player newmap x y -- ) |
236 | |
336 | |
237 | Invoked whenever a player moves from one map to another. |
337 | Invoked before a player moves from one map to another, can override the movement. |
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338 | |
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339 | =head3 region_change (player newregion oldregion -- ) |
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340 | |
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341 | Invoked when a player entered a new region. Cannot be overriden. |
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342 | |
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343 | =head3 command (player command args -- time) |
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344 | |
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345 | Execute a user command send by the client. Programmable plug-ins usually |
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346 | handle this event internally. |
238 | |
347 | |
239 | =head3 extcmd (player string) |
348 | =head3 extcmd (player string) |
240 | |
349 | |
241 | Invoked whenever a client issues the C<extcmd> protocol command. It's |
350 | Invoked whenever a client issues the C<extcmd> protocol command. |
242 | argument is passed without any changes. |
351 | Programmable plug-ins usually handle this event internally. |
243 | |
352 | |
244 | =head3 move (player direction -- ) |
353 | =head3 move (player direction -- ) |
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354 | |
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355 | Called whenever the player is supposed to move or attack. The handler |
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356 | must handle the cases of speed_left or weapon_sp_left being negative, |
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357 | fire being on, is responsible for decreaseing the speed_left value |
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358 | on successful moves etc. etc.. When overriden, must return a boolean |
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359 | indicating wether a move could be effected. |
245 | |
360 | |
246 | =head3 pray_altar (player altar skill -- ) |
361 | =head3 pray_altar (player altar skill -- ) |
247 | |
362 | |
248 | Invoked whenever the B<player> prays over an B<altar>, using the given B<skill>. |
363 | Invoked whenever the B<player> prays over an B<altar>, using the given B<skill>. |
249 | |
364 | |
250 | =head3 tell (player name message -- ) |
365 | =head3 tell (player name message -- ) |
251 | |
366 | |
252 | Invoked whenever the player uses the B<tell> or B<reply> command, before |
367 | Invoked whenever the player uses the B<tell> or B<reply> command, before |
253 | it gets processed. |
368 | it gets processed. |
254 | |
369 | |
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370 | =head3 told (player player message -- ) |
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371 | |
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372 | Invoked right before a message is being told to a player using B<tell> or |
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373 | B<reply>. |
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374 | |
255 | =head3 say (player message --) |
375 | =head3 say (player message --) |
256 | |
376 | |
257 | =head3 chat (player message --) |
377 | =head3 chat (player message --) |
258 | |
378 | |
259 | =head3 shout (player message --) |
379 | =head3 shout (player message --) |
… | |
… | |
270 | =head3 instantiate (map) |
390 | =head3 instantiate (map) |
271 | |
391 | |
272 | Original B<map> has been loaded (e.g. on first use, or after a map |
392 | Original B<map> has been loaded (e.g. on first use, or after a map |
273 | reset). |
393 | reset). |
274 | |
394 | |
275 | =head3 reattach (map) |
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276 | |
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277 | Invoked whenever attachments/plug-ins need to get reattached to the |
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278 | B<map>. This usually happens when the map was loaded from disk, or when the |
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279 | server was reloaded. |
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280 | |
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281 | =head3 destroy (map) |
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282 | |
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283 | Invoked when the map object gets destroyed, and only when the map object |
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284 | has a handler for this event. This event can occur many times, as its |
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285 | called when the in-memory object is destroyed, not when the object itself |
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286 | dies. |
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287 | |
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288 | =head3 swapin (map) |
395 | =head3 swapin (map) |
289 | |
396 | |
290 | Invoked when a previously swapped-out temporary B<map> has been loaded again. |
397 | Invoked when a previously swapped-out temporary B<map> has been loaded again. |
291 | |
398 | |
292 | =head3 swapout (map) |
399 | =head3 swapout (map) |
… | |
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299 | |
406 | |
300 | =head3 clean (map) |
407 | =head3 clean (map) |
301 | |
408 | |
302 | Invoked when a temporary B<map> gets deleted on-disk. |
409 | Invoked when a temporary B<map> gets deleted on-disk. |
303 | |
410 | |
304 | =head3 enter (map player) |
411 | =head3 enter (map player x y -- ) |
305 | |
412 | |
306 | Invoked whenever a player enters the B<map>. This event is likely unreliable. |
413 | Invoked whenever a player tries to enter the B<map>, while he/she is still |
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414 | on the old map. Overriding means the player won't be able to enter, and, |
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415 | if newmap/x/y are given, will be redirected to that map instead. |
307 | |
416 | |
308 | =head3 leave (map player) |
417 | =head3 leave (map player -- ) |
309 | |
418 | |
310 | Invoked whenever a player leaves the B<map>. This event is likely unreliable. |
419 | Invoked whenever a player tries to leave the B<map>. Overriding means the |
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420 | player won't be able to leave. |
311 | |
421 | |
312 | =head3 upgrade (map) |
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313 | |
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314 | (TEMPORARY EVENT) gets invoked whenever a old-style map has been upgraded. |
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315 | |
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316 | =head3 trigger (map connection state) |
422 | =head3 trigger (map connection state what? who? -- ) |
317 | |
423 | |
318 | Invoked whenever something activates a B<connection> on the B<map>. If B<state> |
424 | Invoked whenever something activates a B<connection> on the B<map>. If B<state> |
319 | is true the connection was 'state' and if false it is 'released'. |
425 | is true the connection was 'state' and if false it is 'released'. |
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426 | |
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427 | |
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428 | =head2 CLIENT EVENTS |
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429 | |
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430 | These events are very similar to player events, but they are might be |
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431 | handled asynchronously as soon as the command reaches the server, even when |
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432 | the player hasn't logged in yet (meaning there is no player yet). |
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433 | |
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434 | =head3 connect (client -- ) |
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435 | |
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436 | Called as soon as a new connection to the server is established. Should |
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437 | not be overriden. |
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438 | |
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439 | =head3 setup (client string -- ) |
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440 | |
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441 | Client sent the setup command to negotiate parameters. Handling is |
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442 | mandatory and done by F<login.ext>. |
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443 | |
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444 | =head3 addme (client -- ) |
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445 | |
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446 | The client sent an addme, thus ending the initial handshaking. Handling is mandatory |
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447 | and done by F<login.ext>. |
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448 | |
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449 | =head3 reply (client replystring -- ) |
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450 | |
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451 | Called when the client submits a reply in the ST_CUSTOM state. Usually |
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452 | handled internally by language plugins. |
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453 | |
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454 | =head3 exticmd (client string -- ) |
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455 | |
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456 | Like C<extcmd>, but can be called before a player has logged in. |
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457 | |
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458 | Programmable plug-ins usually handle this event internally. |
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459 | |