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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.43 by root, Fri Aug 25 17:11:53 2006 UTC vs.
Revision 1.49 by root, Sun Aug 27 17:59:26 2006 UTC

… …
11use Event; 11use Event;
12$Event::Eval = 1; # no idea why this is required, but it is 12$Event::Eval = 1; # no idea why this is required, but it is
13 13
14use strict; 14use strict;
15 15
16_reload_1;
17
16our %COMMAND = (); 18our %COMMAND = ();
17our @EVENT; 19our @EVENT;
18our @PLUGIN_EVENT;
19our %PROP_TYPE; 20our %PROP_TYPE;
20our %PROP_IDX; 21our %PROP_IDX;
21our $LIBDIR = maps_directory "perl"; 22our $LIBDIR = maps_directory "perl";
22 23
23our $TICK = MAX_TIME * 1e-6; 24our $TICK = MAX_TIME * 1e-6;
24our $TICK_WATCHER; 25our $TICK_WATCHER;
25our $NEXT_TICK; 26our $NEXT_TICK;
26 27
27BEGIN { 28BEGIN {
28 @PLUGIN_EVENT = map lc, @PLUGIN_EVENT;
29
30 *CORE::GLOBAL::warn = sub { 29 *CORE::GLOBAL::warn = sub {
31 my $msg = join "", @_; 30 my $msg = join "", @_;
32 $msg .= "\n" 31 $msg .= "\n"
33 unless $msg =~ /\n$/; 32 unless $msg =~ /\n$/;
34 33
… …
69prop_gen PLAYER_PROP => "cf::object::player"; 68prop_gen PLAYER_PROP => "cf::object::player";
70 69
71prop_gen MAP_PROP => "cf::map"; 70prop_gen MAP_PROP => "cf::map";
72prop_gen ARCH_PROP => "cf::arch"; 71prop_gen ARCH_PROP => "cf::arch";
73 72
74# guessed hierarchies
75
76@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
77@safe::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
78 74
79# we bless all objects into (empty) derived classes to force a method lookup 75# we bless all objects into (empty) derived classes to force a method lookup
80# within the Safe compartment. 76# within the Safe compartment.
81for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) { 77for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {
82 no strict 'refs'; 78 no strict 'refs';
83 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 79 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84} 80}
85 81
86$Event::DIED = sub { 82$Event::DIED = sub {
… …
92my @hook; 88my @hook;
93my %command; 89my %command;
94my %extcmd; 90my %extcmd;
95 91
96############################################################################# 92#############################################################################
93# utility functions
94
95use JSON::Syck (); # TODO# replace by JSON::PC once working
96
97sub from_json($) {
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#############################################################################
97# "new" plug-in system 108# "new" plug-in system
98 109
99=item cf::object::attach ... # NYI 110=item $object->attach ($attachment, key => $value...)
111
112Attach a pre-registered attachment to an object.
113
114=item $player->attach ($attachment, key => $value...)
115
116Attach a pre-registered attachment to a player.
117
118=item $map->attach ($attachment, key => $value...) # not yet persistent
119
120Attach a pre-registered attachment to a map.
100 121
101=item cf::attach_global ... 122=item cf::attach_global ...
102 123
103=item cf::attach_to_type ... 124Attach handlers for global events.
125
126This and all following C<attach_*>-functions expect any number of the
127following handler/hook descriptions:
128
129=over 4
130
131=item prio => $number
132
133Set the priority for all following handlers/hooks (unless overwritten
134by another C<prio> setting). Lower priority handlers get executed
135earlier. The default priority is C<0>, and many built-in handlers are
136registered at priority C<-1000>, so lower priorities should not be used
137unless you know what you are doing.
138
139=item on_I<event> => \&cb
140
141Call the given code reference whenever the named event happens (event is
142something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
143handlers are recognised generally depends on the type of object these
144handlers attach to).
145
146See F<include/eventinc.h> for the full list of events supported, and their
147class.
148
149=item package => package::
150
151Look for sub functions of the name C<< on_I<event> >> in the given
152package and register them. Only handlers for eevents supported by the
153object/class are recognised.
154
155=back
156
157=item cf::attach_to_type $object_type, $subtype, ...
158
159Attach handlers for a specific object type (e.g. TRANSPORT) and
160subtype. If C<$subtype> is zero or undef, matches all objects of the given
161type.
104 162
105=item cf::attach_to_objects ... 163=item cf::attach_to_objects ...
106 164
165Attach handlers to all objects. Do not use this except for debugging or
166very rare events, as handlers are (obviously) called for I<all> objects in
167the game.
168
107=item cf::attach_to_players ... 169=item cf::attach_to_players ...
108 170
171Attach handlers to all players.
172
109=item cf::attach_to_maps ... 173=item cf::attach_to_maps ...
110 174
111 prio => $number, # lower is earlier 175Attach handlers to all maps.
112 on_xxx => \&cb, 176
113 package => package::, 177=item cf:register_attachment $name, ...
114 178
115=cut 179=cut
116 180
117# the following variables are defined in .xs and must not be re-created 181# the following variables are defined in .xs and must not be re-created
118our @CB_GLOBAL = (); # registry for all global events 182our @CB_GLOBAL = (); # registry for all global events
119our @CB_OBJECT = (); 183our @CB_OBJECT = (); # all objects (should not be used except in emergency)
120our @CB_PLAYER = (); 184our @CB_PLAYER = ();
121our @CB_TYPE = (); # registry for type (cf-object class) based events 185our @CB_TYPE = (); # registry for type (cf-object class) based events
122our @CB_MAP = (); 186our @CB_MAP = ();
123 187
188my %attachment;
189
124sub _attach_cb($\%$$$) { 190sub _attach_cb($\%$$$) {
125 my ($registry, $undo, $event, $prio, $cb) = @_; 191 my ($registry, $undo, $event, $prio, $cb) = @_;
126 192
127 use sort 'stable'; 193 use sort 'stable';
128 194
… …
136} 202}
137 203
138# attach handles attaching event callbacks 204# attach handles attaching event callbacks
139# the only thing the caller has to do is pass the correct 205# the only thing the caller has to do is pass the correct
140# registry (== where the callback attaches to). 206# registry (== where the callback attaches to).
141sub _attach(\@$\@) { 207sub _attach(\@$@) {
142 my ($registry, $klass, $arg) = @_; 208 my ($registry, $klass, @arg) = @_;
143 209
144 my $prio = 0; 210 my $prio = 0;
145 211
146 my %undo = ( 212 my %undo = (
147 registry => $registry, 213 registry => $registry,
148 cb => [], 214 cb => [],
149 ); 215 );
150 216
151 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 217 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
152 218
153 while (@$arg) { 219 while (@arg) {
154 my $type = shift @$arg; 220 my $type = shift @arg;
155 221
156 if ($type eq "prio") { 222 if ($type eq "prio") {
157 $prio = shift @$arg; 223 $prio = shift @arg;
158 224
159 } elsif ($type eq "package") { 225 } elsif ($type eq "package") {
160 my $pkg = shift @$arg; 226 my $pkg = shift @arg;
161 227
162 while (my ($name, $id) = each %cb_id) { 228 while (my ($name, $id) = each %cb_id) {
163 if (my $cb = $pkg->can ($name)) { 229 if (my $cb = $pkg->can ($name)) {
164 _attach_cb $registry, %undo, $id, $prio, $cb; 230 _attach_cb $registry, %undo, $id, $prio, $cb;
165 } 231 }
166 } 232 }
167 233
168 } elsif (exists $cb_id{$type}) { 234 } elsif (exists $cb_id{$type}) {
169 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @$arg; 235 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
170 236
171 } elsif (ref $type) { 237 } elsif (ref $type) {
172 warn "attaching objects not supported, ignoring.\n"; 238 warn "attaching objects not supported, ignoring.\n";
173 239
174 } else { 240 } else {
175 shift @$arg; 241 shift @arg;
176 warn "attach argument '$type' not supported, ignoring.\n"; 242 warn "attach argument '$type' not supported, ignoring.\n";
177 } 243 }
178 } 244 }
179 245
180 \%undo 246 \%undo
181} 247}
182 248
249sub _attach_attachment {
250 my ($obj, $name, %arg) = @_;
251
252 my $res;
253
254 if (my $attach = $attachment{$name}) {
255 my $registry = $obj->registry;
256
257 for (@$attach) {
258 my ($klass, @attach) = @$_;
259 $res = _attach @$registry, $klass, @attach;
260 }
261
262 $obj->{$name} = \%arg;
263 } else {
264 warn "object uses attachment '$name' that is not available, postponing.\n";
265 }
266
267 push @{$obj->{_attachment}}, $name;
268
269 $res->{attachment} = $name;
270 $res
271}
272
183sub cf::object::attach { 273sub cf::object::attach {
184 die; 274 my ($obj, $name, %arg) = @_;
275
276 _attach_attachment $obj, $name, %arg;
277}
278
279sub cf::player::attach {
280 my ($obj, $name, %arg) = @_;
281
282 _attach_attachment KLASS_PLAYER, $obj, $name, %arg;
283}
284
285sub cf::map::attach {
286 my ($obj, $name, %arg) = @_;
287
288 _attach_attachment KLASS_MAP, $obj, $name, %arg;
185} 289}
186 290
187sub attach_global { 291sub attach_global {
188 _attach @CB_GLOBAL, KLASS_GLOBAL, @_ 292 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
189} 293}
190 294
191sub attach_to_type { 295sub attach_to_type {
192 my $type = shift; 296 my $type = shift;
297 my $subtype = shift;
298
193 _attach @{$CB_TYPE[$type]}, KLASS_OBJECT, @_ 299 _attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
194} 300}
195 301
196sub attach_to_objects { 302sub attach_to_objects {
197 _attach @CB_OBJECT, KLASS_OBJECT, @_ 303 _attach @CB_OBJECT, KLASS_OBJECT, @_
198} 304}
… …
203 309
204sub attach_to_maps { 310sub attach_to_maps {
205 _attach @CB_MAP, KLASS_MAP, @_ 311 _attach @CB_MAP, KLASS_MAP, @_
206} 312}
207 313
314sub register_attachment {
315 my $name = shift;
316
317 $attachment{$name} = [[KLASS_OBJECT, @_]];
318}
319
208our $override; 320our $override;
321our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
209 322
210sub override() { 323sub override {
211 $override = 1 324 $override = 1;
325 @invoke_results = ();
212} 326}
213 327
214sub invoke { 328sub do_invoke {
215 my $event = shift; 329 my $event = shift;
216 my $callbacks = shift; 330 my $callbacks = shift;
331
332 @invoke_results = ();
217 333
218 local $override; 334 local $override;
219 335
220 for (@$callbacks) { 336 for (@$callbacks) {
221 eval { &{$_->[1]} }; 337 eval { &{$_->[1]} };
… …
231 347
232 0 348 0
233} 349}
234 350
235############################################################################# 351#############################################################################
352# object support
353
354sub instantiate {
355 my ($obj, $data) = @_;
356
357 $data = from_json $data;
358
359 for (@$data) {
360 my ($name, $args) = @$_;
361
362 $obj->attach ($name, %{$args || {} });
363 }
364}
365
366# basically do the same as instantiate, without calling instantiate
367sub reattach {
368 my ($obj) = @_;
369 my $registry = $obj->registry;
370
371 @$registry = ();
372
373 delete $obj->{_attachment} unless @{ $obj->{_attachment} || [] };
374
375 for my $name (@{ $obj->{_attachment} || [] }) {
376 if (my $attach = $attachment{$name}) {
377 for (@$attach) {
378 my ($klass, @attach) = @$_;
379 _attach @$registry, $klass, @attach;
380 }
381 } else {
382 warn "object uses attachment '$name' that is not available, postponing.\n";
383 }
384 }
385}
386
387sub object_freezer_save {
388 my ($filename, $objs) = @_;
389
390 $filename .= ".pst";
391
392 if (@$objs) {
393 open my $fh, ">:raw", "$filename~";
394 chmod $fh, SAVE_MODE;
395 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
396 close $fh;
397 rename "$filename~", $filename;
398 } else {
399 unlink $filename;
400 }
401}
402
403sub object_thawer_load {
404 my ($filename) = @_;
405
406 open my $fh, "<:raw:perlio", "$filename.pst"
407 or return;
408
409 eval { local $/; (Storable::thaw <$fh>)->{objs} }
410}
411
412attach_to_objects
413 prio => -1000000,
414 on_clone => sub {
415 my ($src, $dst) = @_;
416
417 @{$dst->registry} = @{$src->registry};
418
419 %$dst = %$src;
420
421 $dst->{_attachment} = [@{ $src->{_attachment} }]
422 if exists $src->{_attachment};
423 },
424;
425
426#############################################################################
236# old plug-in events 427# old plug-in events
237 428
238sub inject_event { 429sub inject_event {
239 my $extension = shift; 430 my $extension = shift;
240 my $event_code = shift; 431 my $event_code = shift;
… …
284} 475}
285 476
286sub register { 477sub register {
287 my ($base, $pkg) = @_; 478 my ($base, $pkg) = @_;
288 479
289 for my $idx (0 .. $#PLUGIN_EVENT) { 480 #TODO
290 if (my $ref = $pkg->can ("on_$PLUGIN_EVENT[$idx]")) {
291 #warn "registering $PLUGIN_EVENT[$idx] hook to '$pkg'\n";
292 $hook[$idx]{$base} = $ref;
293 }
294 }
295} 481}
296 482
297sub load_extension { 483sub load_extension {
298 my ($path) = @_; 484 my ($path) = @_;
299 485
… …
330 my ($pkg) = @_; 516 my ($pkg) = @_;
331 517
332 warn "removing extension $pkg\n"; 518 warn "removing extension $pkg\n";
333 519
334 # remove hooks 520 # remove hooks
521 #TODO
335 for my $idx (0 .. $#PLUGIN_EVENT) { 522# for my $idx (0 .. $#PLUGIN_EVENT) {
336 delete $hook[$idx]{$pkg}; 523# delete $hook[$idx]{$pkg};
337 } 524# }
338 525
339 # remove commands 526 # remove commands
340 for my $name (keys %command) { 527 for my $name (keys %command) {
341 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 528 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
342 529
… …
408 Symbol::delete_package $k; 595 Symbol::delete_package $k;
409 } 596 }
410 597
411 # 4. get rid of safe::, as good as possible 598 # 4. get rid of safe::, as good as possible
412 Symbol::delete_package "safe::$_" 599 Symbol::delete_package "safe::$_"
413 for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region); 600 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
414 601
415 # 5. remove register_script_function callbacks 602 # 5. remove register_script_function callbacks
416 # TODO 603 # TODO
417 604
418 # 6. unload cf.pm "a bit" 605 # 6. unload cf.pm "a bit"
… …
448 }; 635 };
449 } 636 }
450}; 637};
451 638
452############################################################################# 639#############################################################################
453# utility functions
454
455use JSON::Syck (); # TODO# replace by JSON::PC once working
456
457sub from_json($) {
458 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
459 JSON::Syck::Load $_[0]
460}
461
462sub to_json($) {
463 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
464 JSON::Syck::Dump $_[0]
465}
466
467#############################################################################
468# extcmd framework, basically convert ext <msg> 640# extcmd framework, basically convert ext <msg>
469# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 641# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
470 642
471attach_global 643attach_to_players
472 on_extcmd => sub { 644 on_extcmd => sub {
473 my ($pl, $buf) = @_; 645 my ($pl, $buf) = @_;
474 646
475 my $msg = eval { from_json $buf }; 647 my $msg = eval { from_json $buf };
476 648
… …
496 668
497 my $path = $map->tmpname; 669 my $path = $map->tmpname;
498 defined $path or return; 670 defined $path or return;
499 671
500 unlink "$path.cfperl"; 672 unlink "$path.cfperl";
673 unlink "$path.pst";
501}; 674};
502 675
503*cf::mapsupport::on_swapin = 676*cf::mapsupport::on_swapin =
504*cf::mapsupport::on_load = sub { 677*cf::mapsupport::on_load = sub {
505 my ($map) = @_; 678 my ($map) = @_;
… …
516 or return; # too new 689 or return; # too new
517 690
518 $map->_set_obs ($data->{obs}); 691 $map->_set_obs ($data->{obs});
519}; 692};
520 693
521*cf::mapsupport::on_swapout = sub {
522 my ($map) = @_;
523
524 my $path = $map->tmpname;
525 $path = $map->path unless defined $path;
526
527 my $obs = $map->_get_obs;
528
529 if (defined $obs) {
530 open my $fh, ">:raw", "$path.cfperl"
531 or die "$path.cfperl: $!";
532
533 stat $path;
534
535 print $fh Storable::nfreeze {
536 size => (stat _)[7],
537 time => (stat _)[9],
538 version => 1,
539 obs => $obs,
540 };
541
542 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
543 } else {
544 unlink "$path.cfperl";
545 }
546};
547
548attach_to_maps prio => -10000, package => cf::mapsupport::; 694attach_to_maps prio => -10000, package => cf::mapsupport::;
549 695
550############################################################################# 696#############################################################################
551# load/save perl data associated with player->ob objects 697# load/save perl data associated with player->ob objects
552 698
… …
563 $o->set_ob_key_value ("_perl_data"); 709 $o->set_ob_key_value ("_perl_data");
564 710
565 %$o = %{ Storable::thaw pack "H*", $value }; 711 %$o = %{ Storable::thaw pack "H*", $value };
566 } 712 }
567 } 713 }
568 },
569 on_save => sub {
570 my ($pl, $path) = @_;
571
572 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
573 for grep %$_, all_objects $pl->ob;
574 }, 714 },
575; 715;
576 716
577############################################################################# 717#############################################################################
578# core extensions - in perl 718# core extensions - in perl
… …
717 $TICK_WATCHER->at ($NEXT_TICK); 857 $TICK_WATCHER->at ($NEXT_TICK);
718 $TICK_WATCHER->start; 858 $TICK_WATCHER->start;
719 }, 859 },
720); 860);
721 861
862_reload_2;
863
7221 8641
723 865

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