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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.8 by root, Thu Mar 16 21:08:16 2006 UTC vs.
Revision 1.53 by root, Tue Aug 29 13:11:58 2006 UTC

1package cf; 1package cf;
2 2
3use Symbol; 3use Symbol;
4use List::Util; 4use List::Util;
5use Storable; 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
6 13
7use strict; 14use strict;
8 15
16_reload_1;
17
9our %COMMAND; 18our %COMMAND = ();
10our @EVENT; 19our @EVENT;
11our %PROP_TYPE; 20our %PROP_TYPE;
12our %PROP_IDX; 21our %PROP_IDX;
22our $LIBDIR = maps_directory "perl";
23
24our $TICK = MAX_TIME * 1e-6;
25our $TICK_WATCHER;
26our $NEXT_TICK;
13 27
14BEGIN { 28BEGIN {
15 @EVENT = map lc, @EVENT;
16
17 *CORE::GLOBAL::warn = sub { 29 *CORE::GLOBAL::warn = sub {
18 my $msg = join "", @_; 30 my $msg = join "", @_;
19 $msg .= "\n" 31 $msg .= "\n"
20 unless $msg =~ /\n$/; 32 unless $msg =~ /\n$/;
21 33
22 print STDERR "cfperl: $msg"; 34 print STDERR "cfperl: $msg";
23 LOG llevError, "cfperl: $msg"; 35 LOG llevError, "cfperl: $msg";
24 }; 36 };
25} 37}
26 38
39my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
27# generate property mutators 41# generate property mutators
28sub prop_gen { 42sub prop_gen {
29 my ($prefix, $class) = @_; 43 my ($prefix, $class) = @_;
30 44
31 no strict 'refs'; 45 no strict 'refs';
41 $_[0]->get_property ($type, $idx) 55 $_[0]->get_property ($type, $idx)
42 }; 56 };
43 57
44 *{"$class\::set_$sub"} = sub { 58 *{"$class\::set_$sub"} = sub {
45 $_[0]->set_property ($type, $idx, $_[1]); 59 $_[0]->set_property ($type, $idx, $_[1]);
46 }; 60 } unless $ignore_set{$prop};
47 } 61 }
48} 62}
49 63
50# auto-generate most of the API 64# auto-generate most of the API
51 65
54prop_gen PLAYER_PROP => "cf::object::player"; 68prop_gen PLAYER_PROP => "cf::object::player";
55 69
56prop_gen MAP_PROP => "cf::map"; 70prop_gen MAP_PROP => "cf::map";
57prop_gen ARCH_PROP => "cf::arch"; 71prop_gen ARCH_PROP => "cf::arch";
58 72
59# guessed hierarchies 73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
60 74
61@cf::object::player::ISA = 'cf::object'; 75# we bless all objects into (empty) derived classes to force a method lookup
62@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};
63 85
64my %ext_pkg; 86my %ext_pkg;
65my @exts; 87my @exts;
66my @hook; 88my @hook;
67my %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=item $object->attach ($attachment, key => $value...)
111
112=item $object->detach ($attachment)
113
114Attach/detach a pre-registered attachment to an object.
115
116=item $player->attach ($attachment, key => $value...)
117
118=item $player->detach ($attachment)
119
120Attach/detach a pre-registered attachment to a player.
121
122=item $map->attach ($attachment, key => $value...)
123
124=item $map->detach ($attachment)
125
126Attach/detach a pre-registered attachment to a map.
127
128=item cf::attach_global ...
129
130Attach handlers for global events.
131
132This and all following C<attach_*>-functions expect any number of the
133following handler/hook descriptions:
134
135=over 4
136
137=item prio => $number
138
139Set the priority for all following handlers/hooks (unless overwritten
140by another C<prio> setting). Lower priority handlers get executed
141earlier. The default priority is C<0>, and many built-in handlers are
142registered at priority C<-1000>, so lower priorities should not be used
143unless you know what you are doing.
144
145=item on_I<event> => \&cb
146
147Call the given code reference whenever the named event happens (event is
148something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
149handlers are recognised generally depends on the type of object these
150handlers attach to).
151
152See F<include/eventinc.h> for the full list of events supported, and their
153class.
154
155=item package => package::
156
157Look for sub functions of the name C<< on_I<event> >> in the given
158package and register them. Only handlers for eevents supported by the
159object/class are recognised.
160
161=back
162
163=item cf::attach_to_type $object_type, $subtype, ...
164
165Attach handlers for a specific object type (e.g. TRANSPORT) and
166subtype. If C<$subtype> is zero or undef, matches all objects of the given
167type.
168
169=item cf::attach_to_objects ...
170
171Attach handlers to all objects. Do not use this except for debugging or
172very rare events, as handlers are (obviously) called for I<all> objects in
173the game.
174
175=item cf::attach_to_players ...
176
177Attach handlers to all players.
178
179=item cf::attach_to_maps ...
180
181Attach handlers to all maps.
182
183=item cf:register_attachment $name, ...
184
185Register an attachment by name through which objects can refer to this
186attachment.
187
188=item cf:register_map_attachment $name, ...
189
190Register an attachment by name through which maps can refer to this
191attachment.
192
193=cut
194
195# the following variables are defined in .xs and must not be re-created
196our @CB_GLOBAL = (); # registry for all global events
197our @CB_OBJECT = (); # all objects (should not be used except in emergency)
198our @CB_PLAYER = ();
199our @CB_TYPE = (); # registry for type (cf-object class) based events
200our @CB_MAP = ();
201
202my %attachment;
203
204sub _attach_cb($\%$$$) {
205 my ($registry, $undo, $event, $prio, $cb) = @_;
206
207 use sort 'stable';
208
209 $cb = [$prio, $cb];
210
211 @{$registry->[$event]} = sort
212 { $a->[0] cmp $b->[0] }
213 @{$registry->[$event] || []}, $cb;
214
215 push @{$undo->{cb}}, [$event, $cb];
216}
217
218# attach handles attaching event callbacks
219# the only thing the caller has to do is pass the correct
220# registry (== where the callback attaches to).
221sub _attach(\@$@) {
222 my ($registry, $klass, @arg) = @_;
223
224 my $prio = 0;
225
226 my %undo = (
227 registry => $registry,
228 cb => [],
229 );
230
231 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
232
233 while (@arg) {
234 my $type = shift @arg;
235
236 if ($type eq "prio") {
237 $prio = shift @arg;
238
239 } elsif ($type eq "package") {
240 my $pkg = shift @arg;
241
242 while (my ($name, $id) = each %cb_id) {
243 if (my $cb = $pkg->can ($name)) {
244 _attach_cb $registry, %undo, $id, $prio, $cb;
245 }
246 }
247
248 } elsif (exists $cb_id{$type}) {
249 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
250
251 } elsif (ref $type) {
252 warn "attaching objects not supported, ignoring.\n";
253
254 } else {
255 shift @arg;
256 warn "attach argument '$type' not supported, ignoring.\n";
257 }
258 }
259
260 \%undo
261}
262
263sub _attach_attachment {
264 my ($obj, $name, %arg) = @_;
265
266 my $res;
267
268 if (my $attach = $attachment{$name}) {
269 my $registry = $obj->registry;
270
271 for (@$attach) {
272 my ($klass, @attach) = @$_;
273 $res = _attach @$registry, $klass, @attach;
274 }
275
276 $obj->{$name} = \%arg;
277 } else {
278 warn "object uses attachment '$name' that is not available, postponing.\n";
279 }
280
281 $obj->{_attachment}{$name} = undef;
282
283 $res->{attachment} = $name;
284 $res
285}
286
287sub cf::object::attach {
288 my ($obj, $name, %arg) = @_;
289
290 _attach_attachment $obj, $name, %arg;
291}
292
293sub cf::player::attach {
294 my ($obj, $name, %arg) = @_;
295
296 _attach_attachment $obj, $name, %arg;
297}
298
299sub cf::map::attach {
300 my ($obj, $name, %arg) = @_;
301
302 _attach_attachment $obj, $name, %arg;
303}
304
305sub cf::object::detach {
306 my ($obj, $name) = @_;
307 die;#d#
308}
309sub cf::player::detach {
310 my ($obj, $name) = @_;
311 die;#d#
312}
313sub cf::map::detach {
314 my ($obj, $name) = @_;
315 die;#d#
316}
317
318sub attach_global {
319 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
320}
321
322sub attach_to_type {
323 my $type = shift;
324 my $subtype = shift;
325
326 _attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
327}
328
329sub attach_to_objects {
330 _attach @CB_OBJECT, KLASS_OBJECT, @_
331}
332
333sub attach_to_players {
334 _attach @CB_PLAYER, KLASS_PLAYER, @_
335}
336
337sub attach_to_maps {
338 _attach @CB_MAP, KLASS_MAP, @_
339}
340
341sub register_attachment {
342 my $name = shift;
343
344 $attachment{$name} = [[KLASS_OBJECT, @_]];
345}
346
347sub register_map_attachment {
348 my $name = shift;
349
350 $attachment{$name} = [[KLASS_MAP, @_]];
351}
352
353our $override;
354our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
355
356sub override {
357 $override = 1;
358 @invoke_results = ();
359}
360
361sub do_invoke {
362 my $event = shift;
363 my $callbacks = shift;
364
365 @invoke_results = ();
366
367 local $override;
368
369 for (@$callbacks) {
370 eval { &{$_->[1]} };
371
372 if ($@) {
373 warn "$@";
374 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
375 override;
376 }
377
378 return 1 if $override;
379 }
380
381 0
382}
383
384#############################################################################
385# object support
386
387sub instantiate {
388 my ($obj, $data) = @_;
389
390 $data = from_json $data;
391
392 for (@$data) {
393 my ($name, $args) = @$_;
394
395 $obj->attach ($name, %{$args || {} });
396 }
397}
398
399# basically do the same as instantiate, without calling instantiate
400sub reattach {
401 my ($obj) = @_;
402 my $registry = $obj->registry;
403
404 @$registry = ();
405
406 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
407
408 for my $name (keys %{ $obj->{_attachment} || {} }) {
409 if (my $attach = $attachment{$name}) {
410 for (@$attach) {
411 my ($klass, @attach) = @$_;
412 _attach @$registry, $klass, @attach;
413 }
414 } else {
415 warn "object uses attachment '$name' that is not available, postponing.\n";
416 }
417 }
418}
419
420sub object_freezer_save {
421 my ($filename, $objs) = @_;
422
423 if (@$objs) {
424 open my $fh, ">:raw", "$filename.pst~";
425 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
426 close $fh;
427 chmod SAVE_MODE, "$filename.pst~";
428 rename "$filename.pst~", "$filename.pst";
429 } else {
430 unlink "$filename.pst";
431 }
432
433 chmod SAVE_MODE, "$filename~";
434 rename "$filename~", $filename;
435}
436
437sub object_thawer_load {
438 my ($filename) = @_;
439
440 open my $fh, "<:raw:perlio", "$filename.pst"
441 or return;
442
443 eval { local $/; (Storable::thaw <$fh>)->{objs} }
444}
445
446attach_to_objects
447 prio => -1000000,
448 on_clone => sub {
449 my ($src, $dst) = @_;
450
451 @{$dst->registry} = @{$src->registry};
452
453 %$dst = %$src;
454
455 %{$dst->{_attachment}} = %{$src->{_attachment}}
456 if exists $src->{_attachment};
457 },
458;
459
460#############################################################################
461# old plug-in events
68 462
69sub inject_event { 463sub inject_event {
70 my ($data) = @_; 464 my $extension = shift;
465 my $event_code = shift;
71 466
72 my $cb = $hook[$data->{event_code}]{$data->{extension}} 467 my $cb = $hook[$event_code]{$extension}
73 or return; 468 or return;
74 469
75 $cb->($data) 470 &$cb
76} 471}
77 472
78sub inject_global_event { 473sub inject_global_event {
79 my ($data) = @_; 474 my $event = shift;
80 475
81 my $cb = $hook[$data->{event_code}] 476 my $cb = $hook[$event]
82 or return; 477 or return;
83 478
84 $_->($data) for values %$cb; 479 List::Util::max map &$_, values %$cb
85
86 ()
87} 480}
88 481
89sub inject_command { 482sub inject_command {
90 my ($name, $obj, $params) = @_; 483 my ($name, $obj, $params) = @_;
91 484
98 491
99sub register_command { 492sub register_command {
100 my ($name, $time, $cb) = @_; 493 my ($name, $time, $cb) = @_;
101 494
102 my $caller = caller; 495 my $caller = caller;
103
104 warn "registering command '$name/$time' to '$caller'"; 496 #warn "registering command '$name/$time' to '$caller'";
105 497
106 push @{ $command{$name} }, [$time, $cb, $caller]; 498 push @{ $command{$name} }, [$time, $cb, $caller];
107 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; 499 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
108} 500}
109 501
502sub register_extcmd {
503 my ($name, $cb) = @_;
504
505 my $caller = caller;
506 #warn "registering extcmd '$name' to '$caller'";
507
508 $extcmd{$name} = [$cb, $caller];
509}
510
110sub register { 511sub register {
111 my ($base, $pkg) = @_; 512 my ($base, $pkg) = @_;
112 513
113 for my $idx (0 .. $#EVENT) { 514 #TODO
114 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
115 warn "registering $EVENT[$idx] hook to '$pkg'\n";
116 $hook[$idx]{$base} = $ref;
117 }
118 }
119} 515}
120 516
121sub load_extension { 517sub load_extension {
122 my ($path) = @_; 518 my ($path) = @_;
123 519
124 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 520 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
125 my $base = $1; 521 my $base = $1;
126 my $pkg = $1; 522 my $pkg = $1;
127 $pkg =~ s/[^[:word:]]/_/g; 523 $pkg =~ s/[^[:word:]]/_/g;
128 $pkg = "cf::ext::$pkg"; 524 $pkg = "ext::$pkg";
129 525
130 warn "loading '$path' into '$pkg'\n"; 526 warn "loading '$path' into '$pkg'\n";
131 527
132 open my $fh, "<:utf8", $path 528 open my $fh, "<:utf8", $path
133 or die "$path: $!"; 529 or die "$path: $!";
143 539
144 push @exts, $pkg; 540 push @exts, $pkg;
145 $ext_pkg{$base} = $pkg; 541 $ext_pkg{$base} = $pkg;
146 542
147# no strict 'refs'; 543# no strict 'refs';
148# @{"$pkg\::ISA"} = cf::ext::; 544# @{"$pkg\::ISA"} = ext::;
149 545
150 register $base, $pkg; 546 register $base, $pkg;
151} 547}
152 548
153sub unload_extension { 549sub unload_extension {
154 my ($pkg) = @_; 550 my ($pkg) = @_;
155 551
156 warn "removing extension $pkg\n"; 552 warn "removing extension $pkg\n";
157 553
158 # remove hooks 554 # remove hooks
555 #TODO
159 for my $idx (0 .. $#EVENT) { 556# for my $idx (0 .. $#PLUGIN_EVENT) {
160 delete $hook[$idx]{$pkg}; 557# delete $hook[$idx]{$pkg};
161 } 558# }
162 559
163 # remove commands 560 # remove commands
164 for my $name (keys %command) { 561 for my $name (keys %command) {
165 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 562 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
166 563
171 delete $command{$name}; 568 delete $command{$name};
172 delete $COMMAND{"$name\000"}; 569 delete $COMMAND{"$name\000"};
173 } 570 }
174 } 571 }
175 572
573 # remove extcmds
574 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
575 delete $extcmd{$name};
576 }
577
578 if (my $cb = $pkg->can ("unload")) {
579 eval {
580 $cb->($pkg);
581 1
582 } or warn "$pkg unloaded, but with errors: $@";
583 }
584
176 Symbol::delete_package $pkg; 585 Symbol::delete_package $pkg;
177} 586}
178 587
179sub load_extensions { 588sub load_extensions {
180 my $LIBDIR = maps_directory "perl"; 589 my $LIBDIR = maps_directory "perl";
186 1 595 1
187 } or warn "$ext not loaded: $@"; 596 } or warn "$ext not loaded: $@";
188 } 597 }
189} 598}
190 599
600sub _perl_reload(&) {
601 my ($msg) = @_;
602
603 $msg->("reloading...");
604
605 eval {
606 # 1. cancel all watchers
607 $_->cancel for Event::all_watchers;
608
609 # 2. unload all extensions
610 for (@exts) {
611 $msg->("unloading <$_>");
612 unload_extension $_;
613 }
614
615 # 3. unload all modules loaded from $LIBDIR
616 while (my ($k, $v) = each %INC) {
617 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
618
619 $msg->("removing <$k>");
620 delete $INC{$k};
621
622 $k =~ s/\.pm$//;
623 $k =~ s/\//::/g;
624
625 if (my $cb = $k->can ("unload_module")) {
626 $cb->();
627 }
628
629 Symbol::delete_package $k;
630 }
631
632 # 4. get rid of safe::, as good as possible
633 Symbol::delete_package "safe::$_"
634 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
635
636 # 5. remove register_script_function callbacks
637 # TODO
638
639 # 6. unload cf.pm "a bit"
640 delete $INC{"cf.pm"};
641
642 # don't, removes xs symbols, too,
643 # and global variables created in xs
644 #Symbol::delete_package __PACKAGE__;
645
646 # 7. reload cf.pm
647 $msg->("reloading cf.pm");
648 require cf;
649 };
650 $msg->($@) if $@;
651
652 $msg->("reloaded");
653};
654
655sub perl_reload() {
656 _perl_reload {
657 warn $_[0];
658 print "$_[0]\n";
659 };
660}
661
191register_command "perl-reload", 0, sub { 662register_command "perl-reload", 0, sub {
192 my ($who, $arg) = @_; 663 my ($who, $arg) = @_;
193 664
194 if ($who->flag (FLAG_WIZ)) { 665 if ($who->flag (FLAG_WIZ)) {
195 $who->message ("reloading..."); 666 _perl_reload {
196 667 warn $_[0];
197 warn "reloading...\n"; 668 $who->message ($_[0]);
198 eval {
199 unload_extension $_ for @exts;
200 delete $INC{"cf.pm"};
201
202 # don't, removes xs symbols, too
203 #Symbol::delete_package $pkg;
204
205 require cf;
206 }; 669 };
207 warn $@ if $@;
208 $who->message ($@) if $@;
209 warn "reloaded\n";
210
211 $who->message ("reloaded");
212 } else {
213 $who->message ("Intruder Alert!");
214 } 670 }
215}; 671};
216 672
217############################################################################# 673#############################################################################
674# extcmd framework, basically convert ext <msg>
675# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
676
677attach_to_players
678 on_extcmd => sub {
679 my ($pl, $buf) = @_;
680
681 my $msg = eval { from_json $buf };
682
683 if (ref $msg) {
684 if (my $cb = $extcmd{$msg->{msgtype}}) {
685 if (my %reply = $cb->[0]->($pl, $msg)) {
686 $pl->ext_reply ($msg->{msgid}, %reply);
687 }
688 }
689 } else {
690 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
691 }
692
693 cf::override;
694 },
695;
696
697#############################################################################
218# load/save/clean perl data associated with a map 698# load/save/clean perl data associated with a map
219 699
220*on_mapclean = sub { 700*cf::mapsupport::on_clean = sub {
221 my $map = shift->{map}; 701 my ($map) = @_;
222 702
223 my $path = $map->tmpname; 703 my $path = $map->tmpname;
224 defined $path or return; 704 defined $path or return;
225 705
226 unlink "$path.cfperl"; 706 unlink "$path.pst";
227}; 707};
228 708
229*on_mapin = 709# old style persistent data, TODO: remove #d#
230*on_mapload = sub { 710*cf::mapsupport::on_swapin =
231 my $map = shift->{map}; 711*cf::mapsupport::on_load = sub {
712 my ($map) = @_;
232 713
233 my $path = $map->tmpname; 714 my $path = $map->tmpname;
234 $path = $map->path unless defined $path; 715 $path = $map->path unless defined $path;
235 716
236 open my $fh, "<:raw", "$path.cfperl" 717 open my $fh, "<:raw", "$path.cfperl"
240 721
241 $data->{version} <= 1 722 $data->{version} <= 1
242 or return; # too new 723 or return; # too new
243 724
244 $map->_set_obs ($data->{obs}); 725 $map->_set_obs ($data->{obs});
726 $map->invoke (EVENT_MAP_UPGRADE);
245}; 727};
246 728
247*on_mapout = sub { 729attach_to_maps prio => -10000, package => cf::mapsupport::;
248 my $map = shift->{map};
249 730
250 my $path = $map->tmpname; 731#############################################################################
251 $path = $map->path unless defined $path; 732# load/save perl data associated with player->ob objects
252 733
253 my $obs = $map->_get_obs; 734sub all_objects(@) {
735 @_, map all_objects ($_->inv), @_
736}
254 737
255 if (defined $obs) { 738attach_to_players
256 open my $fh, ">:raw", "$path.cfperl" 739 on_load => sub {
257 or die "$path.cfperl: $!"; 740 my ($pl, $path) = @_;
258 741
259 stat $path; 742 for my $o (all_objects $pl->ob) {
743 if (my $value = $o->get_ob_key_value ("_perl_data")) {
744 $o->set_ob_key_value ("_perl_data");
260 745
261 print $fh Storable::nfreeze { 746 %$o = %{ Storable::thaw pack "H*", $value };
262 size => (stat _)[7], 747 }
263 time => (stat _)[9],
264 version => 1,
265 obs => $obs,
266 }; 748 }
749 },
750;
267 751
268 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g* 752#############################################################################
753# core extensions - in perl
754
755=item cf::player::exists $login
756
757Returns true when the given account exists.
758
759=cut
760
761sub cf::player::exists($) {
762 cf::player::find $_[0]
763 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
764}
765
766=item $player->reply ($npc, $msg[, $flags])
767
768Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
769can be C<undef>. Does the right thing when the player is currently in a
770dialogue with the given NPC character.
771
772=cut
773
774# rough implementation of a future "reply" method that works
775# with dialog boxes.
776sub cf::object::player::reply($$$;$) {
777 my ($self, $npc, $msg, $flags) = @_;
778
779 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
780
781 if ($self->{record_replies}) {
782 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
269 } else { 783 } else {
270 unlink "$path.cfperl"; 784 $msg = $npc->name . " says: $msg" if $npc;
785 $self->message ($msg, $flags);
786 }
787}
788
789=item $player->ext_reply ($msgid, $msgtype, %msg)
790
791Sends an ext reply to the player.
792
793=cut
794
795sub cf::player::ext_reply($$$%) {
796 my ($self, $id, %msg) = @_;
797
798 $msg{msgid} = $id;
799
800 $self->send ("ext " . to_json \%msg);
801}
802
803#############################################################################
804# map scripting support
805
806our $safe = new Safe "safe";
807our $safe_hole = new Safe::Hole;
808
809$SIG{FPE} = 'IGNORE';
810
811$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
812
813# here we export the classes and methods available to script code
814
815for (
816 ["cf::object" => qw(contr pay_amount pay_player)],
817 ["cf::object::player" => qw(player)],
818 ["cf::player" => qw(peaceful)],
819) {
820 no strict 'refs';
821 my ($pkg, @funs) = @$_;
822 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
823 for @funs;
824}
825
826sub safe_eval($;@) {
827 my ($code, %vars) = @_;
828
829 my $qcode = $code;
830 $qcode =~ s/"/‟/g; # not allowed in #line filenames
831 $qcode =~ s/\n/\\n/g;
832
833 local $_;
834 local @safe::cf::_safe_eval_args = values %vars;
835
836 my $eval =
837 "do {\n"
838 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
839 . "#line 0 \"{$qcode}\"\n"
840 . $code
841 . "\n}"
271 } 842 ;
272};
273 843
274############################################################################# 844 sub_generation_inc;
275# load/save perl data associated with player->ob objects 845 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
846 sub_generation_inc;
276 847
277*on_player_load = sub { 848 if ($@) {
278 my ($event) = @_; 849 warn "$@";
279 my $path = $event->{message}; 850 warn "while executing safe code '$code'\n";
280 my $ob = $event->{who}; 851 warn "with arguments " . (join " ", %vars) . "\n";
281
282 open my $fh, "<:raw", "$path.cfperl"
283 or return; # no perl data
284
285 my $data = Storable::thaw do { local $/; <$fh> };
286
287 $data->{version} <= 1
288 or return; # too new
289
290 %$ob = %{$data->{ob}};
291};
292
293*on_player_save = sub {
294 my ($event) = @_;
295 my $path = $event->{message};
296 my $ob = $event->{who};
297
298 if (keys %$ob) {
299 open my $fh, ">:raw", "$path.cfperl"
300 or die "$path.cfperl: $!";
301
302 stat $path;
303
304 print $fh Storable::nfreeze {
305 size => (stat _)[7],
306 time => (stat _)[9],
307 version => 1,
308 ob => $ob,
309 };
310
311 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
312 } else {
313 unlink "$path.cfperl";
314 } 852 }
315}; 853
854 wantarray ? @res : $res[0]
855}
856
857sub register_script_function {
858 my ($fun, $cb) = @_;
859
860 no strict 'refs';
861 *{"safe::$fun"} = $safe_hole->wrap ($cb);
862}
863
864#############################################################################
865# the server's main()
866
867sub main {
868 Event::loop;
869}
870
871#############################################################################
872# initialisation
316 873
317register "<global>", __PACKAGE__; 874register "<global>", __PACKAGE__;
318 875
876unshift @INC, $LIBDIR;
877
319load_extensions; 878load_extensions;
320 879
880$TICK_WATCHER = Event->timer (
881 prio => 1,
882 at => $NEXT_TICK || 1,
883 cb => sub {
884 cf::server_tick; # one server iteration
885
886 my $NOW = Event::time;
887 $NEXT_TICK += $TICK;
888
889 # if we are delayed by four ticks, skip them all
890 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
891
892 $TICK_WATCHER->at ($NEXT_TICK);
893 $TICK_WATCHER->start;
894 },
895);
896
897_reload_2;
898
3211 8991
322 900

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