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/cvs/deliantra/server/lib/cf.pm
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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.18 by root, Tue Jul 11 14:24:15 2006 UTC vs.
Revision 1.25 by root, Thu Jul 20 07:22:40 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
6use Event; 10use Event;
11$Event::Eval = 1; # no idea why this is required, but it is
7 12
8use strict; 13use strict;
9 14
10our %COMMAND; 15our %COMMAND;
11our @EVENT; 16our @EVENT;
59prop_gen MAP_PROP => "cf::map"; 64prop_gen MAP_PROP => "cf::map";
60prop_gen ARCH_PROP => "cf::arch"; 65prop_gen ARCH_PROP => "cf::arch";
61 66
62# guessed hierarchies 67# guessed hierarchies
63 68
64@cf::object::player::ISA = 'cf::object'; 69@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
65@cf::object::map::ISA = 'cf::object'; 70@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
71
72# we bless all objects into derived classes to force a method lookup
73# within the Safe compartment.
74for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region)) {
75 no strict 'refs';
76 @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
77}
66 78
67$Event::DIED = sub { 79$Event::DIED = sub {
68 warn "error in event callback: @_"; 80 warn "error in event callback: @_";
69}; 81};
70 82
158 170
159 push @exts, $pkg; 171 push @exts, $pkg;
160 $ext_pkg{$base} = $pkg; 172 $ext_pkg{$base} = $pkg;
161 173
162# no strict 'refs'; 174# no strict 'refs';
163# @{"$pkg\::ISA"} = cf::ext::; 175# @{"$pkg\::ISA"} = ext::;
164 176
165 register $base, $pkg; 177 register $base, $pkg;
166} 178}
167 179
168sub unload_extension { 180sub unload_extension {
169 my ($pkg) = @_; 181 my ($pkg) = @_;
170 182
171 warn "removing extension $pkg\n"; 183 warn "removing extension $pkg\n";
184
185 if (my $cb = $pkg->can ("on_unload")) {
186 $cb->($pkg);
187 }
172 188
173 # remove hooks 189 # remove hooks
174 for my $idx (0 .. $#EVENT) { 190 for my $idx (0 .. $#EVENT) {
175 delete $hook[$idx]{$pkg}; 191 delete $hook[$idx]{$pkg};
176 } 192 }
214 if ($who->flag (FLAG_WIZ)) { 230 if ($who->flag (FLAG_WIZ)) {
215 $who->message ("reloading..."); 231 $who->message ("reloading...");
216 232
217 warn "reloading...\n"; 233 warn "reloading...\n";
218 eval { 234 eval {
235 $_->cancel for Event::all_watchers;
236
219 unload_extension $_ for @exts; 237 unload_extension $_ for @exts;
220 delete $INC{"cf.pm"}; 238 delete $INC{"cf.pm"};
221 239
222 # don't, removes xs symbols, too 240 # don't, removes xs symbols, too
223 #Symbol::delete_package $pkg; 241 #Symbol::delete_package __PACKAGE__;
224 242
225 require cf; 243 require cf;
226 }; 244 };
227 warn $@ if $@; 245 warn $@ if $@;
228 $who->message ($@) if $@; 246 $who->message ($@) if $@;
339 for grep %$_, $ob, $ob->inv; 357 for grep %$_, $ob, $ob->inv;
340 358
341 unlink "$path.cfperl";#d##TODO#remove 359 unlink "$path.cfperl";#d##TODO#remove
342}; 360};
343 361
362#############################################################################
363# core extensions - in perl
364
365=item cf::player::exists $login
366
367Returns true when the given account exists.
368
369=cut
370
371sub cf::player::exists($) {
372 cf::player::find $_[0]
373 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
374}
375
376# rough implementation of a future "reply" method that works
377# with dialog boxes.
378sub cf::object::player::reply($$$;$) {
379 my ($self, $npc, $msg, $flags) = @_;
380
381 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
382
383 if ($self->{record_replies}) {
384 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
385 } else {
386 $msg = $npc->name . " says: $msg" if $npc;
387 $self->message ($msg, $flags);
388 }
389}
390
391#############################################################################
392# map scripting support
393
394our $safe = new Safe "ext";
395our $safe_hole = new Safe::Hole;
396
397$SIG{FPE} = 'IGNORE';
398
399$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
400
401# here we export the classes and methods available to script code
402
403for (
404 ["cf::object" => qw(contr)],
405 ["cf::object::player" => qw(player)],
406 ["cf::player" => qw(peaceful)],
407) {
408 no strict 'refs';
409 my ($pkg, @funs) = @$_;
410 *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
411 for @funs;
412}
413
414sub safe_eval($;@) {
415 my ($code, %vars) = @_;
416
417 my $qcode = $code;
418 $qcode =~ s/"/‟/g; # not allowed in #line filenames
419 $qcode =~ s/\n/\\n/g;
420
421 local $_;
422 local @ext::cf::_safe_eval_args = values %vars;
423
424 $code =
425 "do {\n"
426 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
427 . "#line 0 \"{$qcode}\"\n"
428 . $code
429 . "\n}"
430 ;
431
432 sub_generation_inc;
433 my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code);
434 sub_generation_inc;
435
436 wantarray ? @res : $res[0]
437}
438
439sub register_script_function {
440 my ($fun, $cb) = @_;
441
442 no strict 'refs';
443 *{"ext::$fun"} = $safe_hole->wrap ($cb);
444}
445
446#############################################################################
447# initialisation
448
344register "<global>", __PACKAGE__; 449register "<global>", __PACKAGE__;
345 450
346unshift @INC, maps_directory "perl"; 451unshift @INC, maps_directory "perl";
347 452
348load_extensions; 453load_extensions;

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