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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.5 by root, Wed Feb 8 03:46:15 2006 UTC vs.
Revision 1.60 by root, Thu Aug 31 06:23:19 2006 UTC

1package cf; 1package cf;
2 2
3use Symbol; 3use Symbol;
4use List::Util; 4use List::Util;
5use Storable;
6use Opcode;
7use Safe;
8use Safe::Hole;
9
10use Time::HiRes;
11use Event;
12$Event::Eval = 1; # no idea why this is required, but it is
5 13
6use strict; 14use strict;
7 15
16_reload_1;
17
8our %COMMAND; 18our %COMMAND = ();
9our @EVENT; 19our @EVENT;
10our %PROP_TYPE; 20our %PROP_TYPE;
11our %PROP_IDX; 21our %PROP_IDX;
22our $LIBDIR = maps_directory "perl";
23
24our $TICK = MAX_TIME * 1e-6;
25our $TICK_WATCHER;
26our $NEXT_TICK;
12 27
13BEGIN { 28BEGIN {
14 @EVENT = map lc, @EVENT;
15
16 *CORE::GLOBAL::warn = sub { 29 *CORE::GLOBAL::warn = sub {
17 my $msg = join "", @_; 30 my $msg = join "", @_;
18 $msg .= "\n" 31 $msg .= "\n"
19 unless $msg =~ /\n$/; 32 unless $msg =~ /\n$/;
20 33
21 print STDERR "cfperl: $msg"; 34 print STDERR "cfperl: $msg";
22 LOG llevError, "cfperl: $msg"; 35 LOG llevError, "cfperl: $msg";
23 }; 36 };
24} 37}
25 38
39my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
26# generate property mutators 41# generate property mutators
27sub prop_gen { 42sub prop_gen {
28 my ($prefix, $class) = @_; 43 my ($prefix, $class) = @_;
29 44
30 no strict 'refs'; 45 no strict 'refs';
40 $_[0]->get_property ($type, $idx) 55 $_[0]->get_property ($type, $idx)
41 }; 56 };
42 57
43 *{"$class\::set_$sub"} = sub { 58 *{"$class\::set_$sub"} = sub {
44 $_[0]->set_property ($type, $idx, $_[1]); 59 $_[0]->set_property ($type, $idx, $_[1]);
45 }; 60 } unless $ignore_set{$prop};
46 } 61 }
47} 62}
48 63
49# auto-generate most of the API 64# auto-generate most of the API
50 65
53prop_gen PLAYER_PROP => "cf::object::player"; 68prop_gen PLAYER_PROP => "cf::object::player";
54 69
55prop_gen MAP_PROP => "cf::map"; 70prop_gen MAP_PROP => "cf::map";
56prop_gen ARCH_PROP => "cf::arch"; 71prop_gen ARCH_PROP => "cf::arch";
57 72
58# guessed hierarchies 73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
59 74
60@cf::object::player::ISA = 'cf::object'; 75# we bless all objects into (empty) derived classes to force a method lookup
61@cf::object::map::ISA = 'cf::object'; 76# within the Safe compartment.
77for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
78 no strict 'refs';
79 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80}
81
82$Event::DIED = sub {
83 warn "error in event callback: @_";
84};
62 85
63my %ext_pkg; 86my %ext_pkg;
64my @exts; 87my @exts;
65my @hook; 88my @hook;
66my %command; 89my %command;
90my %extcmd;
91
92#############################################################################
93# utility functions
94
95use JSON::Syck (); # TODO# replace by JSON::PC once working
96
97sub from_json($) {
98 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99 JSON::Syck::Load $_[0]
100}
101
102sub to_json($) {
103 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104 JSON::Syck::Dump $_[0]
105}
106
107#############################################################################
108# "new" plug-in system
109
110=head3 EVENTS AND OBJECT ATTACHMENTS
111
112=over 4
113
114=item $object->attach ($attachment, key => $value...)
115
116=item $object->detach ($attachment)
117
118Attach/detach a pre-registered attachment to an object.
119
120=item $player->attach ($attachment, key => $value...)
121
122=item $player->detach ($attachment)
123
124Attach/detach a pre-registered attachment to a player.
125
126=item $map->attach ($attachment, key => $value...)
127
128=item $map->detach ($attachment)
129
130Attach/detach a pre-registered attachment to a map.
131
132=item $bool = $object->attached ($name)
133
134=item $bool = $player->attached ($name)
135
136=item $bool = $map->attached ($name)
137
138Checks wether the named attachment is currently attached to the object.
139
140=item cf::attach_global ...
141
142Attach handlers for global events.
143
144This and all following C<attach_*>-functions expect any number of the
145following handler/hook descriptions:
146
147=over 4
148
149=item prio => $number
150
151Set the priority for all following handlers/hooks (unless overwritten
152by another C<prio> setting). Lower priority handlers get executed
153earlier. The default priority is C<0>, and many built-in handlers are
154registered at priority C<-1000>, so lower priorities should not be used
155unless you know what you are doing.
156
157=item on_I<event> => \&cb
158
159Call the given code reference whenever the named event happens (event is
160something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
161handlers are recognised generally depends on the type of object these
162handlers attach to).
163
164See F<include/eventinc.h> for the full list of events supported, and their
165class.
166
167=item package => package::
168
169Look for sub functions of the name C<< on_I<event> >> in the given
170package and register them. Only handlers for eevents supported by the
171object/class are recognised.
172
173=back
174
175=item cf::attach_to_type $object_type, $subtype, ...
176
177Attach handlers for a specific object type (e.g. TRANSPORT) and
178subtype. If C<$subtype> is zero or undef, matches all objects of the given
179type.
180
181=item cf::attach_to_objects ...
182
183Attach handlers to all objects. Do not use this except for debugging or
184very rare events, as handlers are (obviously) called for I<all> objects in
185the game.
186
187=item cf::attach_to_players ...
188
189Attach handlers to all players.
190
191=item cf::attach_to_maps ...
192
193Attach handlers to all maps.
194
195=item cf:register_attachment $name, ...
196
197Register an attachment by name through which objects can refer to this
198attachment.
199
200=item cf:register_player_attachment $name, ...
201
202Register an attachment by name through which players can refer to this
203attachment.
204
205=item cf:register_map_attachment $name, ...
206
207Register an attachment by name through which maps can refer to this
208attachment.
209
210=cut
211
212# the following variables are defined in .xs and must not be re-created
213our @CB_GLOBAL = (); # registry for all global events
214our @CB_OBJECT = (); # all objects (should not be used except in emergency)
215our @CB_PLAYER = ();
216our @CB_TYPE = (); # registry for type (cf-object class) based events
217our @CB_MAP = ();
218
219my %attachment;
220
221sub _attach_cb($\%$$$) {
222 my ($registry, $undo, $event, $prio, $cb) = @_;
223
224 use sort 'stable';
225
226 $cb = [$prio, $cb];
227
228 @{$registry->[$event]} = sort
229 { $a->[0] cmp $b->[0] }
230 @{$registry->[$event] || []}, $cb;
231
232 push @{$undo->{cb}}, [$event, $cb];
233}
234
235# attach handles attaching event callbacks
236# the only thing the caller has to do is pass the correct
237# registry (== where the callback attaches to).
238sub _attach(\@$@) {
239 my ($registry, $klass, @arg) = @_;
240
241 my $prio = 0;
242
243 my %undo = (
244 registry => $registry,
245 cb => [],
246 );
247
248 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
249
250 while (@arg) {
251 my $type = shift @arg;
252
253 if ($type eq "prio") {
254 $prio = shift @arg;
255
256 } elsif ($type eq "package") {
257 my $pkg = shift @arg;
258
259 while (my ($name, $id) = each %cb_id) {
260 if (my $cb = $pkg->can ($name)) {
261 _attach_cb $registry, %undo, $id, $prio, $cb;
262 }
263 }
264
265 } elsif (exists $cb_id{$type}) {
266 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
267
268 } elsif (ref $type) {
269 warn "attaching objects not supported, ignoring.\n";
270
271 } else {
272 shift @arg;
273 warn "attach argument '$type' not supported, ignoring.\n";
274 }
275 }
276
277 \%undo
278}
279
280sub _attach_attachment {
281 my ($obj, $name, %arg) = @_;
282
283 return if exists $obj->{_attachment}{$name};
284
285 my $res;
286
287 if (my $attach = $attachment{$name}) {
288 my $registry = $obj->registry;
289
290 for (@$attach) {
291 my ($klass, @attach) = @$_;
292 $res = _attach @$registry, $klass, @attach;
293 }
294
295 $obj->{$name} = \%arg;
296 } else {
297 warn "object uses attachment '$name' that is not available, postponing.\n";
298 }
299
300 $obj->{_attachment}{$name} = undef;
301
302 $res->{attachment} = $name;
303 $res
304}
305
306*cf::object::attach =
307*cf::player::attach =
308*cf::map::attach = sub {
309 my ($obj, $name, %arg) = @_;
310
311 _attach_attachment $obj, $name, %arg;
312};
313
314# all those should be optimised
315*cf::object::detach =
316*cf::player::detach =
317*cf::map::detach = sub {
318 my ($obj, $name) = @_;
319
320 delete $obj->{_attachment}{$name};
321 reattach ($obj);
322};
323
324*cf::object::attached =
325*cf::player::attached =
326*cf::map::attached = sub {
327 my ($obj, $name) = @_;
328
329 exists $obj->{_attachment}{$name}
330};
331
332sub attach_global {
333 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
334}
335
336sub attach_to_type {
337 my $type = shift;
338 my $subtype = shift;
339
340 _attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
341}
342
343sub attach_to_objects {
344 _attach @CB_OBJECT, KLASS_OBJECT, @_
345}
346
347sub attach_to_players {
348 _attach @CB_PLAYER, KLASS_PLAYER, @_
349}
350
351sub attach_to_maps {
352 _attach @CB_MAP, KLASS_MAP, @_
353}
354
355sub register_attachment {
356 my $name = shift;
357
358 $attachment{$name} = [[KLASS_OBJECT, @_]];
359}
360
361sub register_player_attachment {
362 my $name = shift;
363
364 $attachment{$name} = [[KLASS_PLAYER, @_]];
365}
366
367sub register_map_attachment {
368 my $name = shift;
369
370 $attachment{$name} = [[KLASS_MAP, @_]];
371}
372
373our $override;
374our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
375
376sub override {
377 $override = 1;
378 @invoke_results = ();
379}
380
381sub do_invoke {
382 my $event = shift;
383 my $callbacks = shift;
384
385 @invoke_results = ();
386
387 local $override;
388
389 for (@$callbacks) {
390 eval { &{$_->[1]} };
391
392 if ($@) {
393 warn "$@";
394 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
395 override;
396 }
397
398 return 1 if $override;
399 }
400
401 0
402}
403
404=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
405
406=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
407
408=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
409
410=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
411
412Generate a global/object/player/map-specific event with the given arguments.
413
414This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
415removed in future versions), and there is no public API to access override
416results (if you must, access C<@cf::invoke_results> directly).
417
418=back
419
420=head2 methods valid for all pointers
421
422=over 4
423
424=item $object->valid
425
426=item $player->valid
427
428=item $map->valid
429
430Just because you have a perl object does not mean that the corresponding
431C-level object still exists. If you try to access an object that has no
432valid C counterpart anymore you get an exception at runtime. This method
433can be used to test for existence of the C object part without causing an
434exception.
435
436=back
437
438=cut
439
440*cf::object::valid =
441*cf::player::valid =
442*cf::map::valid = \&cf::_valid;
443
444#############################################################################
445# object support
446
447sub instantiate {
448 my ($obj, $data) = @_;
449
450 $data = from_json $data;
451
452 for (@$data) {
453 my ($name, $args) = @$_;
454
455 $obj->attach ($name, %{$args || {} });
456 }
457}
458
459# basically do the same as instantiate, without calling instantiate
460sub reattach {
461 my ($obj) = @_;
462 my $registry = $obj->registry;
463
464 @$registry = ();
465
466 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
467
468 for my $name (keys %{ $obj->{_attachment} || {} }) {
469 if (my $attach = $attachment{$name}) {
470 for (@$attach) {
471 my ($klass, @attach) = @$_;
472 _attach @$registry, $klass, @attach;
473 }
474 } else {
475 warn "object uses attachment '$name' that is not available, postponing.\n";
476 }
477 }
478}
479
480sub object_freezer_save {
481 my ($filename, $rdata, $objs) = @_;
482
483 if (length $$rdata) {
484 warn sprintf "saving %s (%d,%d)\n",
485 $filename, length $$rdata, scalar @$objs;
486
487 if (open my $fh, ">:raw", "$filename~") {
488 chmod SAVE_MODE, $fh;
489 syswrite $fh, $$rdata;
490 close $fh;
491
492 if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
493 chmod SAVE_MODE, $fh;
494 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
495 close $fh;
496 rename "$filename.pst~", "$filename.pst";
497 } else {
498 unlink "$filename.pst";
499 }
500
501 rename "$filename~", $filename;
502 } else {
503 warn "FATAL: $filename~: $!\n";
504 }
505 } else {
506 unlink $filename;
507 unlink "$filename.pst";
508 }
509}
510
511sub object_thawer_load {
512 my ($filename) = @_;
513
514 open my $fh, "<:raw:perlio", "$filename.pst"
515 or return;
516
517 eval { local $/; (Storable::thaw <$fh>)->{objs} }
518}
519
520attach_to_objects
521 prio => -1000000,
522 on_clone => sub {
523 my ($src, $dst) = @_;
524
525 @{$dst->registry} = @{$src->registry};
526
527 %$dst = %$src;
528
529 %{$dst->{_attachment}} = %{$src->{_attachment}}
530 if exists $src->{_attachment};
531 },
532;
533
534#############################################################################
535# old plug-in events
67 536
68sub inject_event { 537sub inject_event {
69 my ($data) = @_; 538 my $extension = shift;
539 my $event_code = shift;
70 540
71 my $cb = $hook[$data->{event_code}]{$data->{extension}} 541 my $cb = $hook[$event_code]{$extension}
72 or return; 542 or return;
73 543
74 $cb->($data) 544 &$cb
75} 545}
76 546
77sub inject_global_event { 547sub inject_global_event {
78 my ($data) = @_; 548 my $event = shift;
79 549
80 my $cb = $hook[$data->{event_code}] 550 my $cb = $hook[$event]
81 or return; 551 or return;
82 552
83 $_->($data) for values %$cb; 553 List::Util::max map &$_, values %$cb
84
85 ()
86} 554}
87 555
88sub inject_command { 556sub inject_command {
89 my ($name, $obj, $params) = @_; 557 my ($name, $obj, $params) = @_;
90 558
97 565
98sub register_command { 566sub register_command {
99 my ($name, $time, $cb) = @_; 567 my ($name, $time, $cb) = @_;
100 568
101 my $caller = caller; 569 my $caller = caller;
102
103 warn "registering command '$name/$time' to '$caller'"; 570 #warn "registering command '$name/$time' to '$caller'";
104 571
105 push @{ $command{$name} }, [$time, $cb, $caller]; 572 push @{ $command{$name} }, [$time, $cb, $caller];
106 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; 573 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
574}
575
576sub register_extcmd {
577 my ($name, $cb) = @_;
578
579 my $caller = caller;
580 #warn "registering extcmd '$name' to '$caller'";
581
582 $extcmd{$name} = [$cb, $caller];
583}
584
585sub register {
586 my ($base, $pkg) = @_;
587
588 #TODO
107} 589}
108 590
109sub load_extension { 591sub load_extension {
110 my ($path) = @_; 592 my ($path) = @_;
111 593
112 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 594 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
113 my $base = $1; 595 my $base = $1;
114 my $pkg = $1; 596 my $pkg = $1;
115 $pkg =~ s/[^[:word:]]/_/g; 597 $pkg =~ s/[^[:word:]]/_/g;
116 $pkg = "cf::ext::$pkg"; 598 $pkg = "ext::$pkg";
117 599
118 warn "loading '$path' into '$pkg'\n"; 600 warn "loading '$path' into '$pkg'\n";
119 601
120 open my $fh, "<:utf8", $path 602 open my $fh, "<:utf8", $path
121 or die "$path: $!"; 603 or die "$path: $!";
130 or die "$path: $@"; 612 or die "$path: $@";
131 613
132 push @exts, $pkg; 614 push @exts, $pkg;
133 $ext_pkg{$base} = $pkg; 615 $ext_pkg{$base} = $pkg;
134 616
135 no strict 'refs'; 617# no strict 'refs';
136
137# @{"$pkg\::ISA"} = cf::ext::; 618# @{"$pkg\::ISA"} = ext::;
138 619
139 for my $idx (0 .. $#EVENT) { 620 register $base, $pkg;
140 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
141 warn "registering $EVENT[$idx] hook\n";
142 $hook[$idx]{$base} = $ref;
143 }
144 }
145} 621}
146 622
147sub unload_extension { 623sub unload_extension {
148 my ($pkg) = @_; 624 my ($pkg) = @_;
149 625
150 warn "removing extension $pkg\n"; 626 warn "removing extension $pkg\n";
151 627
152 # remove hooks 628 # remove hooks
629 #TODO
153 for my $idx (0 .. $#EVENT) { 630# for my $idx (0 .. $#PLUGIN_EVENT) {
154 delete $hook[$idx]{$pkg}; 631# delete $hook[$idx]{$pkg};
155 } 632# }
156 633
157 # remove commands 634 # remove commands
158 for my $name (keys %command) { 635 for my $name (keys %command) {
159 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 636 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
160 637
165 delete $command{$name}; 642 delete $command{$name};
166 delete $COMMAND{"$name\000"}; 643 delete $COMMAND{"$name\000"};
167 } 644 }
168 } 645 }
169 646
647 # remove extcmds
648 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
649 delete $extcmd{$name};
650 }
651
652 if (my $cb = $pkg->can ("unload")) {
653 eval {
654 $cb->($pkg);
655 1
656 } or warn "$pkg unloaded, but with errors: $@";
657 }
658
170 Symbol::delete_package $pkg; 659 Symbol::delete_package $pkg;
171} 660}
172 661
173sub load_extensions { 662sub load_extensions {
174 my $LIBDIR = maps_directory "perl"; 663 my $LIBDIR = maps_directory "perl";
180 1 669 1
181 } or warn "$ext not loaded: $@"; 670 } or warn "$ext not loaded: $@";
182 } 671 }
183} 672}
184 673
674sub _perl_reload(&) {
675 my ($msg) = @_;
676
677 $msg->("reloading...");
678
679 eval {
680 # 1. cancel all watchers
681 $_->cancel for Event::all_watchers;
682
683 # 2. unload all extensions
684 for (@exts) {
685 $msg->("unloading <$_>");
686 unload_extension $_;
687 }
688
689 # 3. unload all modules loaded from $LIBDIR
690 while (my ($k, $v) = each %INC) {
691 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
692
693 $msg->("removing <$k>");
694 delete $INC{$k};
695
696 $k =~ s/\.pm$//;
697 $k =~ s/\//::/g;
698
699 if (my $cb = $k->can ("unload_module")) {
700 $cb->();
701 }
702
703 Symbol::delete_package $k;
704 }
705
706 # 4. get rid of safe::, as good as possible
707 Symbol::delete_package "safe::$_"
708 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
709
710 # 5. remove register_script_function callbacks
711 # TODO
712
713 # 6. unload cf.pm "a bit"
714 delete $INC{"cf.pm"};
715
716 # don't, removes xs symbols, too,
717 # and global variables created in xs
718 #Symbol::delete_package __PACKAGE__;
719
720 # 7. reload cf.pm
721 $msg->("reloading cf.pm");
722 require cf;
723 };
724 $msg->($@) if $@;
725
726 $msg->("reloaded");
727};
728
729sub perl_reload() {
730 _perl_reload {
731 warn $_[0];
732 print "$_[0]\n";
733 };
734}
735
185register_command "perl-reload", 0, sub { 736register_command "perl-reload", 0, sub {
186 my ($who, $arg) = @_; 737 my ($who, $arg) = @_;
187 738
188 if ($who->flag (FLAG_WIZ)) { 739 if ($who->flag (FLAG_WIZ)) {
189 $who->message ("reloading..."); 740 _perl_reload {
190 741 warn $_[0];
191 warn "reloading...\n"; 742 $who->message ($_[0]);
192 eval {
193 unload_extension $_ for @exts;
194 delete $INC{"cf.pm"};
195
196 # don't, removes xs symbols, too
197 #Symbol::delete_package $pkg;
198
199 require cf;
200 }; 743 };
201 warn $@ if $@; 744 }
202 $who->message ($@) if $@; 745};
203 warn "reloaded\n";
204 746
205 $who->message ("reloaded"); 747#############################################################################
748# extcmd framework, basically convert ext <msg>
749# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
750
751attach_to_players
752 on_extcmd => sub {
753 my ($pl, $buf) = @_;
754
755 my $msg = eval { from_json $buf };
756
757 if (ref $msg) {
758 if (my $cb = $extcmd{$msg->{msgtype}}) {
759 if (my %reply = $cb->[0]->($pl, $msg)) {
760 $pl->ext_reply ($msg->{msgid}, %reply);
761 }
762 }
763 } else {
764 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
765 }
766
767 cf::override;
768 },
769;
770
771#############################################################################
772# load/save/clean perl data associated with a map
773
774*cf::mapsupport::on_clean = sub {
775 my ($map) = @_;
776
777 my $path = $map->tmpname;
778 defined $path or return;
779
780 unlink "$path.pst";
781};
782
783attach_to_maps prio => -10000, package => cf::mapsupport::;
784
785#############################################################################
786# load/save perl data associated with player->ob objects
787
788sub all_objects(@) {
789 @_, map all_objects ($_->inv), @_
790}
791
792# TODO: compatibility cruft, remove when no longer needed
793attach_to_players
794 on_load => sub {
795 my ($pl, $path) = @_;
796
797 for my $o (all_objects $pl->ob) {
798 if (my $value = $o->get_ob_key_value ("_perl_data")) {
799 $o->set_ob_key_value ("_perl_data");
800
801 %$o = %{ Storable::thaw pack "H*", $value };
802 }
803 }
804 },
805;
806
807#############################################################################
808# core extensions - in perl
809
810=item cf::player::exists $login
811
812Returns true when the given account exists.
813
814=cut
815
816sub cf::player::exists($) {
817 cf::player::find $_[0]
818 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
819}
820
821=item $player->reply ($npc, $msg[, $flags])
822
823Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
824can be C<undef>. Does the right thing when the player is currently in a
825dialogue with the given NPC character.
826
827=cut
828
829# rough implementation of a future "reply" method that works
830# with dialog boxes.
831sub cf::object::player::reply($$$;$) {
832 my ($self, $npc, $msg, $flags) = @_;
833
834 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
835
836 if ($self->{record_replies}) {
837 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
206 } else { 838 } else {
207 $who->message ("Intruder Alert!"); 839 $msg = $npc->name . " says: $msg" if $npc;
840 $self->message ($msg, $flags);
841 }
842}
843
844=item $player->ext_reply ($msgid, $msgtype, %msg)
845
846Sends an ext reply to the player.
847
848=cut
849
850sub cf::player::ext_reply($$$%) {
851 my ($self, $id, %msg) = @_;
852
853 $msg{msgid} = $id;
854
855 $self->send ("ext " . to_json \%msg);
856}
857
858#############################################################################
859# map scripting support
860
861our $safe = new Safe "safe";
862our $safe_hole = new Safe::Hole;
863
864$SIG{FPE} = 'IGNORE';
865
866$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
867
868# here we export the classes and methods available to script code
869
870for (
871 ["cf::object" => qw(contr pay_amount pay_player)],
872 ["cf::object::player" => qw(player)],
873 ["cf::player" => qw(peaceful)],
874) {
875 no strict 'refs';
876 my ($pkg, @funs) = @$_;
877 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
878 for @funs;
879}
880
881sub safe_eval($;@) {
882 my ($code, %vars) = @_;
883
884 my $qcode = $code;
885 $qcode =~ s/"/‟/g; # not allowed in #line filenames
886 $qcode =~ s/\n/\\n/g;
887
888 local $_;
889 local @safe::cf::_safe_eval_args = values %vars;
890
891 my $eval =
892 "do {\n"
893 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
894 . "#line 0 \"{$qcode}\"\n"
895 . $code
896 . "\n}"
208 } 897 ;
209}; 898
899 sub_generation_inc;
900 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
901 sub_generation_inc;
902
903 if ($@) {
904 warn "$@";
905 warn "while executing safe code '$code'\n";
906 warn "with arguments " . (join " ", %vars) . "\n";
907 }
908
909 wantarray ? @res : $res[0]
910}
911
912sub register_script_function {
913 my ($fun, $cb) = @_;
914
915 no strict 'refs';
916 *{"safe::$fun"} = $safe_hole->wrap ($cb);
917}
918
919#############################################################################
920# the server's main()
921
922sub main {
923 Event::loop;
924}
925
926#############################################################################
927# initialisation
928
929register "<global>", __PACKAGE__;
930
931unshift @INC, $LIBDIR;
210 932
211load_extensions; 933load_extensions;
212 934
935$TICK_WATCHER = Event->timer (
936 prio => 1,
937 at => $NEXT_TICK || 1,
938 cb => sub {
939 cf::server_tick; # one server iteration
940
941 my $NOW = Event::time;
942 $NEXT_TICK += $TICK;
943
944 # if we are delayed by four ticks, skip them all
945 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
946
947 $TICK_WATCHER->at ($NEXT_TICK);
948 $TICK_WATCHER->start;
949 },
950);
951
952_reload_2;
953
2131 9541
214 955

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