1 | # |
1 | # |
2 | # This file is part of Deliantra, the Roguelike Realtime MMORPG. |
2 | # This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | # |
3 | # |
|
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4 | # Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team |
4 | # Copyright (©) 2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | # Copyright (©) 2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | # |
6 | # |
6 | # Deliantra is free software: you can redistribute it and/or modify it under |
7 | # Deliantra is free software: you can redistribute it and/or modify it under |
7 | # the terms of the Affero GNU General Public License as published by the |
8 | # the terms of the Affero GNU General Public License as published by the |
8 | # Free Software Foundation, either version 3 of the License, or (at your |
9 | # Free Software Foundation, either version 3 of the License, or (at your |
9 | # option) any later version. |
10 | # option) any later version. |
10 | # |
11 | # |
11 | # This program is distributed in the hope that it will be useful, |
12 | # This program is distributed in the hope that it will be useful, |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | # GNU General Public License for more details. |
15 | # GNU General Public License for more details. |
15 | # |
16 | # |
16 | # You should have received a copy of the Affero GNU General Public License |
17 | # You should have received a copy of the Affero GNU General Public License |
17 | # and the GNU General Public License along with this program. If not, see |
18 | # and the GNU General Public License along with this program. If not, see |
18 | # <http://www.gnu.org/licenses/>. |
19 | # <http://www.gnu.org/licenses/>. |
19 | # |
20 | # |
20 | # The authors can be reached via e-mail to <support@deliantra.net> |
21 | # The authors can be reached via e-mail to <support@deliantra.net> |
21 | # |
22 | # |
22 | |
23 | |
23 | =head1 NAME |
24 | =head1 NAME |
24 | |
25 | |
… | |
… | |
34 | |
35 | |
35 | Match the object if it has a slaying field of C<key1>: |
36 | Match the object if it has a slaying field of C<key1>: |
36 | |
37 | |
37 | slaying = "key1" |
38 | slaying = "key1" |
38 | |
39 | |
39 | Match the object if it has an object with name C<force> and |
40 | Match the object if it has an object with name C<force> and |
40 | slaying C<poison> in it's inventory: |
41 | slaying C<poison> in it's inventory: |
41 | |
42 | |
42 | has (name = "force" and slaying = "poison") |
43 | has (name = "force" and slaying = "poison") |
43 | |
44 | |
44 | Find all inventory objects with value >= 10, which are not invisible: |
45 | Find all inventory objects with value >= 10, which are not invisible: |
… | |
… | |
229 | Starts with the default object - this is the object passed to the match to |
230 | Starts with the default object - this is the object passed to the match to |
230 | match against by default. Matches have an explicit C<of object> appended, |
231 | match against by default. Matches have an explicit C<of object> appended, |
231 | but submatches start at the current object, and in this case C<of object> |
232 | but submatches start at the current object, and in this case C<of object> |
232 | can be used to start at the original object once more. |
233 | can be used to start at the original object once more. |
233 | |
234 | |
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235 | =item of self |
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236 | |
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237 | Starts with the object initiating/asking for the match - this is basically |
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238 | always the object that the match expression is attached to. |
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239 | |
234 | =item of source |
240 | =item of source |
235 | |
241 | |
236 | Starts with the I<source> object - this object is sometimes passed to |
242 | Starts with the I<source> object - this object is sometimes passed to |
237 | matches and represents the object that is the source of the action, such |
243 | matches and represents the object that is the source of the action, such |
238 | as a rod or a potion when it is applied. Often, the I<source> is the same |
244 | as a rod or a potion when it is applied. Often, the I<source> is the same |
… | |
… | |
245 | the original initiator of an action, most commonly a player or monster. |
251 | the original initiator of an action, most commonly a player or monster. |
246 | |
252 | |
247 | This object is often identical to the I<source> (e.g. when a player casts |
253 | This object is often identical to the I<source> (e.g. when a player casts |
248 | a spell, the player is both source and originator). |
254 | a spell, the player is both source and originator). |
249 | |
255 | |
250 | =item of self |
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251 | |
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252 | Starts with the object initiating/asking for the match - this is basically |
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253 | always the object that the match expression is attached to. |
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254 | |
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255 | =back |
256 | =back |
256 | |
257 | |
257 | =head2 EXPRESSIONS |
258 | =head2 EXPRESSIONS |
258 | |
259 | |
259 | Expressions used in conditions usually consist of simple boolean checks |
260 | Expressions used in conditions usually consist of simple boolean checks |
… | |
… | |
268 | |
269 | |
269 | =item scalar object attributes |
270 | =item scalar object attributes |
270 | |
271 | |
271 | Object attributes that consist of a single value (C<name>, C<title>, |
272 | Object attributes that consist of a single value (C<name>, C<title>, |
272 | C<value> and so on) can be specified by simply using their name, in which |
273 | C<value> and so on) can be specified by simply using their name, in which |
273 | acse their corresponding value is used. |
274 | case their corresponding value is used. |
274 | |
275 | |
275 | =item array objects attributes |
276 | =item array objects attributes |
276 | |
277 | |
277 | The C<resist> array can be accessed by specifying C<< resist [ ATNR_type ] |
278 | The C<resist> array can be accessed by specifying C<< resist [ ATNR_type ] |
278 | >>. |
279 | >>. |
… | |
… | |
282 | resist[ATNR_ACID] > 30 |
283 | resist[ATNR_ACID] > 30 |
283 | |
284 | |
284 | =item functions |
285 | =item functions |
285 | |
286 | |
286 | Some additional functions with or without arguments in parentheses are |
287 | Some additional functions with or without arguments in parentheses are |
287 | available. |
288 | available. They are documented in their own section, below. |
288 | |
289 | |
289 | =item { BLOCK } |
290 | =item { BLOCK } |
290 | |
291 | |
291 | You can specify perl code to execute by putting it inside curly |
292 | You can specify perl code to execute by putting it inside curly |
292 | braces. The last expression evaluated inside will become the result. |
293 | braces. The last expression evaluated inside will become the result. |
… | |
… | |
331 | |
332 | |
332 | =item none |
333 | =item none |
333 | |
334 | |
334 | This simply evaluates to false, and simply makes matching I<never> a bit |
335 | This simply evaluates to false, and simply makes matching I<never> a bit |
335 | easier to read. |
336 | easier to read. |
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337 | |
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338 | =item archname |
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339 | |
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340 | The same as C<< { $_->arch->archname } >> - the archetype name is commonly |
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341 | used to match items, so this shortcut is provided. |
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342 | |
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343 | =item resist_xxx |
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344 | |
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345 | Resistancy values such as C<resist_physical>, C<resist_magic>, |
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346 | C<resists_fire> etc. are directly available (but can also be accessed via |
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347 | array syntax, i.e. C<resists[ATNR_FIRE]>). |
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348 | |
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349 | =item body_xxx_info and body_xxx_used |
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350 | |
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351 | Every body location (e.g. C<body_neck_info>, C<body_arm_used> etc.) can |
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352 | be accessed via these functions (these are aliases to more cumbersome C<< { |
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353 | $_->slot_info (body_xxx) } >> and C<slot_used> method calls). |
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354 | |
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355 | Example: (e.g. on a door) match only players that have no arms. |
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356 | |
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357 | match type=PLAYER and body_arm_info=0 |
336 | |
358 | |
337 | =item has(condition) |
359 | =item has(condition) |
338 | |
360 | |
339 | True iff the object has a matching inventory object. |
361 | True iff the object has a matching inventory object. |
340 | |
362 | |
… | |
… | |
459 | 1 |
481 | 1 |
460 | }, |
482 | }, |
461 | none => sub { |
483 | none => sub { |
462 | 0 |
484 | 0 |
463 | }, |
485 | }, |
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486 | archname => sub { |
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487 | '$_->arch->archname' |
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488 | }, |
464 | ); |
489 | ); |
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490 | |
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491 | # resist_xxx |
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492 | for my $atnr (0 .. cf::NROFATTACKS - 1) { |
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493 | $special{"resist_" . cf::attacktype_name ($atnr)} = sub { "\$_->resist ($atnr)" }; |
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494 | } |
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495 | |
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496 | # body_xxx_info and _used |
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497 | for my $slot (0 .. cf::NUM_BODY_LOCATIONS - 1) { |
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498 | my $name = cf::object::slot_name $slot; |
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499 | |
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500 | $special{"body_$name\_info"} = sub { "\$_->slot_info ($slot)" }; |
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501 | $special{"body_$name\_used"} = sub { "\$_->slot_used ($slot)" }; |
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502 | } |
465 | |
503 | |
466 | sub constant { |
504 | sub constant { |
467 | ws; |
505 | ws; |
468 | |
506 | |
469 | return $1 if /\G([\-\+0-9\.]+)/gc; |
507 | return $1 if /\G([\-\+0-9\.]+)/gc; |
… | |
… | |
714 | |
752 | |
715 | $res |
753 | $res |
716 | } |
754 | } |
717 | |
755 | |
718 | if (0) {#d# |
756 | if (0) {#d# |
719 | die parse 1, 'stats.pow'; |
757 | die parse 1, 'type=PLAYER and body_arm_info=0'; |
720 | exit 0; |
758 | exit 0; |
721 | } |
759 | } |
722 | |
760 | |
723 | our %CACHE; |
761 | our %CACHE; |
724 | |
762 | |
725 | sub compile($$) { |
763 | sub compile($$) { |
726 | my ($wantarray, $match) = @_; |
764 | my ($wantarray, $match) = @_; |
727 | my $expr = parse $wantarray, $match; |
765 | my $expr = parse $wantarray, $match; |
728 | warn "MATCH DEBUG $match,$wantarray => $expr\n";#d# |
766 | # warn "MATCH DEBUG $match,$wantarray => $expr\n";#d# |
729 | $expr = eval " |
767 | $expr = eval " |
730 | package cf::match::exec; |
768 | package cf::match::exec; |
731 | sub { |
769 | sub { |
732 | my (\$object, \$self, \$source, \$originator) = \@_; |
770 | my (\$object, \$self, \$source, \$originator) = \@_; |
733 | $expr |
771 | $expr |