1 | package cf; |
1 | package cf; |
2 | |
2 | |
3 | use Symbol; |
3 | use Symbol; |
4 | use List::Util; |
4 | use List::Util; |
5 | use Storable; |
5 | use Storable; |
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6 | use Opcode; |
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7 | use Safe; |
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8 | use Safe::Hole; |
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9 | |
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10 | use Event; |
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11 | $Event::Eval = 1; # no idea why this is required, but it is |
6 | |
12 | |
7 | use strict; |
13 | use strict; |
8 | |
14 | |
9 | our %COMMAND; |
15 | our %COMMAND; |
10 | our @EVENT; |
16 | our @EVENT; |
… | |
… | |
58 | prop_gen MAP_PROP => "cf::map"; |
64 | prop_gen MAP_PROP => "cf::map"; |
59 | prop_gen ARCH_PROP => "cf::arch"; |
65 | prop_gen ARCH_PROP => "cf::arch"; |
60 | |
66 | |
61 | # guessed hierarchies |
67 | # guessed hierarchies |
62 | |
68 | |
63 | @cf::object::player::ISA = 'cf::object'; |
69 | @ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
64 | @cf::object::map::ISA = 'cf::object'; |
70 | @ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object'; |
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71 | |
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72 | # we bless all objects into derived classes to force a method lookup |
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73 | # within the Safe compartment. |
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74 | for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region)) { |
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75 | no strict 'refs'; |
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76 | @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; |
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77 | } |
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78 | |
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79 | $Event::DIED = sub { |
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80 | warn "error in event callback: @_"; |
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81 | }; |
65 | |
82 | |
66 | my %ext_pkg; |
83 | my %ext_pkg; |
67 | my @exts; |
84 | my @exts; |
68 | my @hook; |
85 | my @hook; |
69 | my %command; |
86 | my %command; |
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87 | my %extcmd; |
70 | |
88 | |
71 | sub inject_event { |
89 | sub inject_event { |
72 | my $extension = shift; |
90 | my $extension = shift; |
73 | my $event_code = shift; |
91 | my $event_code = shift; |
74 | |
92 | |
… | |
… | |
99 | |
117 | |
100 | sub register_command { |
118 | sub register_command { |
101 | my ($name, $time, $cb) = @_; |
119 | my ($name, $time, $cb) = @_; |
102 | |
120 | |
103 | my $caller = caller; |
121 | my $caller = caller; |
104 | |
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105 | warn "registering command '$name/$time' to '$caller'"; |
122 | #warn "registering command '$name/$time' to '$caller'"; |
106 | |
123 | |
107 | push @{ $command{$name} }, [$time, $cb, $caller]; |
124 | push @{ $command{$name} }, [$time, $cb, $caller]; |
108 | $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; |
125 | $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; |
109 | } |
126 | } |
110 | |
127 | |
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128 | sub register_extcmd { |
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129 | my ($name, $cb) = @_; |
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130 | |
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131 | my $caller = caller; |
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132 | #warn "registering extcmd '$name' to '$caller'"; |
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133 | |
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134 | $extcmd{$name} = [$cb, $caller]; |
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135 | } |
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136 | |
111 | sub register { |
137 | sub register { |
112 | my ($base, $pkg) = @_; |
138 | my ($base, $pkg) = @_; |
113 | |
139 | |
114 | for my $idx (0 .. $#EVENT) { |
140 | for my $idx (0 .. $#EVENT) { |
115 | if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { |
141 | if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { |
116 | warn "registering $EVENT[$idx] hook to '$pkg'\n"; |
142 | #warn "registering $EVENT[$idx] hook to '$pkg'\n"; |
117 | $hook[$idx]{$base} = $ref; |
143 | $hook[$idx]{$base} = $ref; |
118 | } |
144 | } |
119 | } |
145 | } |
120 | } |
146 | } |
121 | |
147 | |
… | |
… | |
144 | |
170 | |
145 | push @exts, $pkg; |
171 | push @exts, $pkg; |
146 | $ext_pkg{$base} = $pkg; |
172 | $ext_pkg{$base} = $pkg; |
147 | |
173 | |
148 | # no strict 'refs'; |
174 | # no strict 'refs'; |
149 | # @{"$pkg\::ISA"} = cf::ext::; |
175 | # @{"$pkg\::ISA"} = ext::; |
150 | |
176 | |
151 | register $base, $pkg; |
177 | register $base, $pkg; |
152 | } |
178 | } |
153 | |
179 | |
154 | sub unload_extension { |
180 | sub unload_extension { |
155 | my ($pkg) = @_; |
181 | my ($pkg) = @_; |
156 | |
182 | |
157 | warn "removing extension $pkg\n"; |
183 | warn "removing extension $pkg\n"; |
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184 | |
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185 | if (my $cb = $pkg->can ("on_unload")) { |
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186 | $cb->($pkg); |
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187 | } |
158 | |
188 | |
159 | # remove hooks |
189 | # remove hooks |
160 | for my $idx (0 .. $#EVENT) { |
190 | for my $idx (0 .. $#EVENT) { |
161 | delete $hook[$idx]{$pkg}; |
191 | delete $hook[$idx]{$pkg}; |
162 | } |
192 | } |
… | |
… | |
172 | delete $command{$name}; |
202 | delete $command{$name}; |
173 | delete $COMMAND{"$name\000"}; |
203 | delete $COMMAND{"$name\000"}; |
174 | } |
204 | } |
175 | } |
205 | } |
176 | |
206 | |
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207 | # remove extcmds |
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208 | for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { |
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209 | delete $extcmd{$name}; |
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210 | } |
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211 | |
177 | Symbol::delete_package $pkg; |
212 | Symbol::delete_package $pkg; |
178 | } |
213 | } |
179 | |
214 | |
180 | sub load_extensions { |
215 | sub load_extensions { |
181 | my $LIBDIR = maps_directory "perl"; |
216 | my $LIBDIR = maps_directory "perl"; |
… | |
… | |
195 | if ($who->flag (FLAG_WIZ)) { |
230 | if ($who->flag (FLAG_WIZ)) { |
196 | $who->message ("reloading..."); |
231 | $who->message ("reloading..."); |
197 | |
232 | |
198 | warn "reloading...\n"; |
233 | warn "reloading...\n"; |
199 | eval { |
234 | eval { |
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235 | $_->cancel for Event::all_watchers; |
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236 | |
200 | unload_extension $_ for @exts; |
237 | unload_extension $_ for @exts; |
201 | delete $INC{"cf.pm"}; |
238 | delete $INC{"cf.pm"}; |
202 | |
239 | |
203 | # don't, removes xs symbols, too |
240 | # don't, removes xs symbols, too |
204 | #Symbol::delete_package $pkg; |
241 | #Symbol::delete_package __PACKAGE__; |
205 | |
242 | |
206 | require cf; |
243 | require cf; |
207 | }; |
244 | }; |
208 | warn $@ if $@; |
245 | warn $@ if $@; |
209 | $who->message ($@) if $@; |
246 | $who->message ($@) if $@; |
… | |
… | |
212 | $who->message ("reloaded"); |
249 | $who->message ("reloaded"); |
213 | } else { |
250 | } else { |
214 | $who->message ("Intruder Alert!"); |
251 | $who->message ("Intruder Alert!"); |
215 | } |
252 | } |
216 | }; |
253 | }; |
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254 | |
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255 | ############################################################################# |
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256 | # extcmd framework, basically convert ext <id> <pkg> arg1 args |
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257 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
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258 | |
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259 | sub on_extcmd { |
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260 | my ($pl, $buf) = @_; |
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261 | |
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262 | my ($type) = $buf =~ s/^(\S+) // ? $1 : ""; |
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263 | |
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264 | $extcmd{$type}[0]->($pl, $buf) |
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265 | if $extcmd{$type}; |
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266 | } |
217 | |
267 | |
218 | ############################################################################# |
268 | ############################################################################# |
219 | # load/save/clean perl data associated with a map |
269 | # load/save/clean perl data associated with a map |
220 | |
270 | |
221 | *on_mapclean = sub { |
271 | *on_mapclean = sub { |
… | |
… | |
276 | # load/save perl data associated with player->ob objects |
326 | # load/save perl data associated with player->ob objects |
277 | |
327 | |
278 | *on_player_load = sub { |
328 | *on_player_load = sub { |
279 | my ($ob, $path) = @_; |
329 | my ($ob, $path) = @_; |
280 | |
330 | |
281 | if (open my $fh, "<:raw", "$path.cfperl") { |
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282 | |
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283 | #d##TODO#remove |
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284 | |
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285 | my $data = Storable::thaw do { local $/; <$fh> }; |
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286 | |
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287 | $data->{version} <= 1 |
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288 | or return; # too new |
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289 | |
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290 | %$ob = %{$data->{ob}}; |
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291 | return; |
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292 | } |
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293 | |
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294 | for my $o ($ob, $ob->inv) { |
331 | for my $o ($ob, $ob->inv) { |
295 | if (my $value = $o->get_ob_key_value ("_perl_data")) { |
332 | if (my $value = $o->get_ob_key_value ("_perl_data")) { |
296 | $o->set_ob_key_value ("_perl_data"); |
333 | $o->set_ob_key_value ("_perl_data"); |
297 | |
334 | |
298 | %$o = %{ Storable::thaw pack "H*", $value }; |
335 | %$o = %{ Storable::thaw pack "H*", $value }; |
… | |
… | |
303 | *on_player_save = sub { |
340 | *on_player_save = sub { |
304 | my ($ob, $path) = @_; |
341 | my ($ob, $path) = @_; |
305 | |
342 | |
306 | $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) |
343 | $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) |
307 | for grep %$_, $ob, $ob->inv; |
344 | for grep %$_, $ob, $ob->inv; |
308 | |
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309 | unlink "$path.cfperl";#d##TODO#remove |
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310 | }; |
345 | }; |
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346 | |
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347 | ############################################################################# |
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348 | # core extensions - in perl |
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349 | |
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350 | =item cf::player::exists $login |
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351 | |
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352 | Returns true when the given account exists. |
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353 | |
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354 | =cut |
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355 | |
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356 | sub cf::player::exists($) { |
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357 | cf::player::find $_[0] |
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358 | or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
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359 | } |
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360 | |
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361 | # rough implementation of a future "reply" method that works |
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362 | # with dialog boxes. |
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363 | sub cf::object::player::reply($$$;$) { |
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364 | my ($self, $npc, $msg, $flags) = @_; |
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365 | |
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366 | $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
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367 | |
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368 | if ($self->{record_replies}) { |
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369 | push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
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370 | } else { |
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371 | $msg = $npc->name . " says: $msg" if $npc; |
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372 | $self->message ($msg, $flags); |
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373 | } |
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374 | } |
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375 | |
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376 | ############################################################################# |
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377 | # map scripting support |
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378 | |
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379 | our $safe = new Safe "ext"; |
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380 | our $safe_hole = new Safe::Hole; |
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381 | |
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382 | $SIG{FPE} = 'IGNORE'; |
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383 | |
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384 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
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385 | |
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386 | # here we export the classes and methods available to script code |
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387 | |
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388 | for ( |
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389 | ["cf::object" => qw(contr)], |
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390 | ["cf::object::player" => qw(player)], |
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391 | ["cf::player" => qw(peaceful)], |
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392 | ) { |
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393 | no strict 'refs'; |
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394 | my ($pkg, @funs) = @$_; |
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395 | *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
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396 | for @funs; |
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397 | } |
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398 | |
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399 | sub safe_eval($;@) { |
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400 | my ($code, %vars) = @_; |
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401 | |
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402 | my $qcode = $code; |
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403 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
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404 | $qcode =~ s/\n/\\n/g; |
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405 | |
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406 | local $_; |
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407 | local @ext::cf::_safe_eval_args = values %vars; |
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408 | |
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409 | $code = |
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410 | "do {\n" |
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411 | . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
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412 | . "#line 0 \"{$qcode}\"\n" |
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413 | . $code |
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414 | . "\n}" |
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415 | ; |
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416 | |
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417 | sub_generation_inc; |
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418 | my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code); |
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419 | sub_generation_inc; |
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420 | |
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421 | wantarray ? @res : $res[0] |
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422 | } |
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423 | |
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424 | sub register_script_function { |
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425 | my ($fun, $cb) = @_; |
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426 | |
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427 | no strict 'refs'; |
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428 | *{"ext::$fun"} = $safe_hole->wrap ($cb); |
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429 | } |
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430 | |
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431 | ############################################################################# |
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432 | # initialisation |
311 | |
433 | |
312 | register "<global>", __PACKAGE__; |
434 | register "<global>", __PACKAGE__; |
313 | |
435 | |
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436 | unshift @INC, maps_directory "perl"; |
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437 | |
314 | load_extensions; |
438 | load_extensions; |
315 | |
439 | |
316 | 1 |
440 | 1 |
317 | |
441 | |