server/lib/cf.pm

package cf;

use Symbol;
use List::Util;
use Storable;
use Opcode;
use Safe;
use Safe::Hole;

use Time::HiRes;
use Event;
$Event::Eval = 1; # no idea why this is required, but it is

use strict;

our %COMMAND;
our @EVENT;
our %PROP_TYPE;
our %PROP_IDX;
our $LIBDIR = maps_directory "perl";

our $TICK = MAX_TIME * 1e-6;
our $TICK_WATCHER;
our $NEXT_TICK;

BEGIN {
   @EVENT = map lc, @EVENT;

   *CORE::GLOBAL::warn = sub {
      my $msg = join "", @_;
      $msg .= "\n"
         unless $msg =~ /\n$/;

      print STDERR "cfperl: $msg";
      LOG llevError, "cfperl: $msg";
   };
}

my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!

# generate property mutators
sub prop_gen {
   my ($prefix, $class) = @_;

   no strict 'refs';

   for my $prop (keys %PROP_TYPE) {
      $prop =~ /^\Q$prefix\E_(.*$)/ or next;
      my $sub = lc $1;

      my $type = $PROP_TYPE{$prop};
      my $idx  = $PROP_IDX {$prop};

      *{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
         $_[0]->get_property ($type, $idx)
      };

      *{"$class\::set_$sub"} = sub {
         $_[0]->set_property ($type, $idx, $_[1]);
      } unless $ignore_set{$prop};
   }
}

# auto-generate most of the API

prop_gen OBJECT_PROP => "cf::object";
# CFAPI_OBJECT_ANIMATION?
prop_gen PLAYER_PROP => "cf::object::player";

prop_gen MAP_PROP    => "cf::map";
prop_gen ARCH_PROP   => "cf::arch";

# guessed hierarchies

@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
@ext::cf::object::map::ISA    = @cf::object::map::ISA    = 'cf::object';

# we bless all objects into derived classes to force a method lookup
# within the Safe compartment.
for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {
   no strict 'refs';
   @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
}

$Event::DIED = sub {
   warn "error in event callback: @_";
};

my %ext_pkg;
my @exts;
my @hook;
my %command;
my %extcmd;

sub inject_event {
   my $extension = shift;
   my $event_code = shift;

   my $cb = $hook[$event_code]{$extension}
      or return;

   &$cb
}

sub inject_global_event {
   my $event = shift;

   my $cb = $hook[$event]
      or return;

   List::Util::max map &$_, values %$cb
}

sub inject_command {
   my ($name, $obj, $params) = @_;

   for my $cmd (@{ $command{$name} }) {
      $cmd->[1]->($obj, $params);
   }

   -1
}

sub register_command {
   my ($name, $time, $cb) = @_;

   my $caller = caller;
   #warn "registering command '$name/$time' to '$caller'";

   push @{ $command{$name} }, [$time, $cb, $caller];
   $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
}

sub register_extcmd {
   my ($name, $cb) = @_;

   my $caller = caller;
   #warn "registering extcmd '$name' to '$caller'";

   $extcmd{$name} = [$cb, $caller];
}

sub register {
   my ($base, $pkg) = @_;

   for my $idx (0 .. $#EVENT) {
      if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
         #warn "registering $EVENT[$idx] hook to '$pkg'\n";
         $hook[$idx]{$base} = $ref;
      }
   }
}

sub load_extension {
   my ($path) = @_;

   $path =~ /([^\/\\]+)\.ext$/ or die "$path";
   my $base = $1;
   my $pkg = $1;
   $pkg =~ s/[^[:word:]]/_/g;
   $pkg = "cf::ext::$pkg";

   warn "loading '$path' into '$pkg'\n";

   open my $fh, "<:utf8", $path
      or die "$path: $!";

   my $source =
      "package $pkg; use strict; use utf8;\n"
      . "#line 1 \"$path\"\n{\n"
      . (do { local $/; <$fh> })
      . "\n};\n1";

   eval $source
      or die "$path: $@";

   push @exts, $pkg;
   $ext_pkg{$base} = $pkg;

#   no strict 'refs';
#   @{"$pkg\::ISA"} = ext::;

   register $base, $pkg;
}

sub unload_extension {
   my ($pkg) = @_;

   warn "removing extension $pkg\n";

   # remove hooks
   for my $idx (0 .. $#EVENT) {
      delete $hook[$idx]{$pkg};
   }

   # remove commands
   for my $name (keys %command) {
      my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };

      if (@cb) {
         $command{$name} = \@cb;
         $COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
      } else {
         delete $command{$name};
         delete $COMMAND{"$name\000"};
      }
   }

   # remove extcmds
   for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
      delete $extcmd{$name};
   }

   if (my $cb = $pkg->can ("on_unload")) {
      eval {
         $cb->($pkg);
         1
      } or warn "$pkg unloaded, but with errors: $@";
   }

   Symbol::delete_package $pkg;
}

sub load_extensions {
   my $LIBDIR = maps_directory "perl";

   for my $ext (<$LIBDIR/*.ext>) {
      next unless -r $ext;
      eval {
         load_extension $ext;
         1
      } or warn "$ext not loaded: $@";
   }
}

register_command "perl-reload", 0, sub {
   my ($who, $arg) = @_;

   if ($who->flag (FLAG_WIZ)) {
      $who->message ("reloading...");

      warn "reloading...\n";
      eval {
         # 1. cancel all watchers
         $_->cancel for Event::all_watchers;

         # 2. unload all extensions
         for (@exts) {
            $who->message ("unloading <$_>");
            unload_extension $_;
         }

         # 3. unload all modules loaded from $LIBDIR
         while (my ($k, $v) = each %INC) {
            next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;

            $who->message ("removing <$k>");
            delete $INC{$k};

            $k =~ s/\.pm$//;
            $k =~ s/\//::/g;

            if (my $cb = $k->can ("unload_module")) {
               $cb->();
            }

            Symbol::delete_package $k;
         }

         # 4. get rid of ext::, as good as possible
         Symbol::delete_package "ext::$_"
            for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);

         # 5. remove register_script_function callbacks
         # TODO
         
         # 6. unload cf.pm "a bit"
         delete $INC{"cf.pm"};

         # don't, removes xs symbols, too
         #Symbol::delete_package __PACKAGE__;

         # 7. reload cf.pm
         $who->message ("reloading cf.pm");
         require cf;
      };
      warn $@ if $@;
      $who->message ($@) if $@;
      warn "reloaded\n";

      $who->message ("reloaded");
   } else {
      $who->message ("Intruder Alert!");
   }
};

#############################################################################
# utility functions

use JSON::Syck (); # TODO# replace by JSON::PC once working

sub from_json($) {
   $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
   JSON::Syck::Load $_[0]
}

sub to_json($) {
   $JSON::Syck::ImplicitUnicode = 0;  # work around JSON::Syck bugs
   JSON::Syck::Dump $_[0]
}

#############################################################################
# extcmd framework, basically convert ext <msg>
# into pkg::->on_extcmd_arg1 (...) while shortcutting a few

sub on_extcmd {
   my ($pl, $buf) = @_;

   my $msg = eval { from_json $buf };

   if (ref $msg) {
      if (my $cb = $extcmd{$msg->{msgtype}}) {
         if (my %reply = $cb->[0]->($pl, $msg)) {
            $pl->ext_reply ($msg->{msgid}, %reply);
         }
      }
   } else {
      warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
   }

   1
}

#############################################################################
# load/save/clean perl data associated with a map

*on_mapclean = sub {
   my ($map) = @_;

   my $path = $map->tmpname;
   defined $path or return;

   unlink "$path.cfperl";
};

*on_mapin =
*on_mapload = sub {
   my ($map) = @_;

   my $path = $map->tmpname;
   $path = $map->path unless defined $path;

   open my $fh, "<:raw", "$path.cfperl"
      or return; # no perl data

   my $data = Storable::thaw do { local $/; <$fh> };

   $data->{version} <= 1
      or return; # too new

   $map->_set_obs ($data->{obs});
};

*on_mapout = sub {
   my ($map) = @_;

   my $path = $map->tmpname;
   $path = $map->path unless defined $path;

   my $obs = $map->_get_obs;

   if (defined $obs) {
      open my $fh, ">:raw", "$path.cfperl"
         or die "$path.cfperl: $!";

      stat $path;

      print $fh Storable::nfreeze {
         size    => (stat _)[7],
         time    => (stat _)[9],
         version => 1,
         obs     => $obs,
      };

      chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
   } else {
      unlink "$path.cfperl";
   }
};

#############################################################################
# load/save perl data associated with player->ob objects

sub all_objects(@) {
   @_, map all_objects ($_->inv), @_
}

*on_player_load = sub {
   my ($ob, $path) = @_;

   for my $o (all_objects $ob) {
      if (my $value = $o->get_ob_key_value ("_perl_data")) {
         $o->set_ob_key_value ("_perl_data");

         %$o = %{ Storable::thaw pack "H*", $value };
      }
   }
};

*on_player_save = sub {
   my ($ob, $path) = @_;

   $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
      for grep %$_, all_objects $ob;
};

#############################################################################
# core extensions - in perl

=item cf::player::exists $login

Returns true when the given account exists.

=cut

sub cf::player::exists($) {
   cf::player::find $_[0]
      or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
}

=item $player->reply ($npc, $msg[, $flags])

Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
can be C<undef>. Does the right thing when the player is currently in a
dialogue with the given NPC character.

=cut

# rough implementation of a future "reply" method that works
# with dialog boxes.
sub cf::object::player::reply($$$;$) {
   my ($self, $npc, $msg, $flags) = @_;

   $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;

   if ($self->{record_replies}) {
      push @{ $self->{record_replies} }, [$npc, $msg, $flags];
   } else {
      $msg = $npc->name . " says: $msg" if $npc;
      $self->message ($msg, $flags);
   }
}

=item $player->ext_reply ($msgid, $msgtype, %msg)

Sends an ext reply to the player.

=cut

sub cf::player::ext_reply($$$%) {
   my ($self, $id, %msg) = @_;

   $msg{msgid} = $id;

   $self->send ("ext " . to_json \%msg);
}

#############################################################################
# map scripting support

our $safe = new Safe "ext";
our $safe_hole = new Safe::Hole;

$SIG{FPE} = 'IGNORE';

$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));

# here we export the classes and methods available to script code

for (
   ["cf::object"         => qw(contr pay_amount pay_player)],
   ["cf::object::player" => qw(player)],
   ["cf::player"         => qw(peaceful)],
) {
   no strict 'refs';
   my ($pkg, @funs) = @$_;
   *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
      for @funs;
}

sub safe_eval($;@) {
   my ($code, %vars) = @_;

   my $qcode = $code;
   $qcode =~ s/"/‟/g; # not allowed in #line filenames
   $qcode =~ s/\n/\\n/g;

   local $_;
   local @ext::cf::_safe_eval_args = values %vars;

   $code =
      "do {\n"
      . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
      . "#line 0 \"{$qcode}\"\n"
      . $code
      . "\n}"
   ;

   sub_generation_inc;
   my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code);
   sub_generation_inc;

   wantarray ? @res : $res[0]
}

sub register_script_function {
   my ($fun, $cb) = @_;

   no strict 'refs';
   *{"ext::$fun"} = $safe_hole->wrap ($cb);
}

#############################################################################
# the server's main()

sub run {
   Event::loop;
}

#############################################################################
# initialisation

register "<global>", __PACKAGE__;

unshift @INC, $LIBDIR;

load_extensions;

$TICK_WATCHER = Event->timer (
   prio => 1,
   at   => $NEXT_TICK || 1,
   cb   => sub {
      cf::server_tick; # one server iteration

      my $NOW = Event::time;
      $NEXT_TICK += $TICK;

      # if we are delayed by > 0.25 second, skip ticks
      $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + .25;

      $TICK_WATCHER->at ($NEXT_TICK);
      $TICK_WATCHER->start;
   },
);

1

Revision:	1.35
Committed:	Thu Aug 24 13:35:48 2006 UTC (17 years, 9 months ago) by root
Branch:	MAIN
Changes since 1.34:	+21 -15 lines
Log Message:	allow perl-reload changing ticks
#	User	Rev	Content
1	root	1.1	package cf;
2
3			use Symbol;
4			use List::Util;
5	root	1.6	use Storable;
6	root	1.23	use Opcode;
7			use Safe;
8			use Safe::Hole;
9	root	1.19
10	root	1.32	use Time::HiRes;
11	root	1.18	use Event;
12	root	1.19	$Event::Eval = 1; # no idea why this is required, but it is
13	root	1.1
14			use strict;
15
16			our %COMMAND;
17			our @EVENT;
18			our %PROP_TYPE;
19			our %PROP_IDX;
20	root	1.27	our $LIBDIR = maps_directory "perl";
21	root	1.1
22	root	1.35	our $TICK = MAX_TIME * 1e-6;
23			our $TICK_WATCHER;
24			our $NEXT_TICK;
25
26	root	1.1	BEGIN {
27			@EVENT = map lc, @EVENT;
28
29			*CORE::GLOBAL::warn = sub {
30			my $msg = join "", @_;
31			$msg .= "\n"
32			unless $msg =~ /\n$/;
33
34			print STDERR "cfperl: $msg";
35			LOG llevError, "cfperl: $msg";
36			};
37			}
38
39	root	1.9	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	root	1.1	# generate property mutators
42			sub prop_gen {
43			my ($prefix, $class) = @_;
44
45			no strict 'refs';
46
47			for my $prop (keys %PROP_TYPE) {
48			$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49			my $sub = lc $1;
50
51			my $type = $PROP_TYPE{$prop};
52			my $idx = $PROP_IDX {$prop};
53
54			{"$class\::get_$sub"} = {"$class\::$sub"} = sub {
55			$_[0]->get_property ($type, $idx)
56			};
57
58			*{"$class\::set_$sub"} = sub {
59			$_[0]->set_property ($type, $idx, $_[1]);
60	root	1.9	} unless $ignore_set{$prop};
61	root	1.1	}
62			}
63
64			# auto-generate most of the API
65
66			prop_gen OBJECT_PROP => "cf::object";
67			# CFAPI_OBJECT_ANIMATION?
68			prop_gen PLAYER_PROP => "cf::object::player";
69
70			prop_gen MAP_PROP => "cf::map";
71			prop_gen ARCH_PROP => "cf::arch";
72
73			# guessed hierarchies
74
75	root	1.25	@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
76			@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
77
78			# we bless all objects into derived classes to force a method lookup
79			# within the Safe compartment.
80	elmex	1.30	for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {
81	root	1.25	no strict 'refs';
82			@{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
83			}
84	root	1.1
85	root	1.18	$Event::DIED = sub {
86			warn "error in event callback: @_";
87			};
88
89	root	1.5	my %ext_pkg;
90	root	1.1	my @exts;
91			my @hook;
92			my %command;
93	root	1.15	my %extcmd;
94	root	1.1
95			sub inject_event {
96	root	1.14	my $extension = shift;
97			my $event_code = shift;
98	root	1.1
99	root	1.14	my $cb = $hook[$event_code]{$extension}
100	root	1.5	or return;
101
102	root	1.14	&$cb
103	root	1.5	}
104
105			sub inject_global_event {
106	root	1.12	my $event = shift;
107	root	1.5
108	root	1.12	my $cb = $hook[$event]
109	root	1.1	or return;
110
111	root	1.12	List::Util::max map &$_, values %$cb
112	root	1.1	}
113
114			sub inject_command {
115			my ($name, $obj, $params) = @_;
116
117			for my $cmd (@{ $command{$name} }) {
118			$cmd->[1]->($obj, $params);
119			}
120
121			-1
122			}
123
124			sub register_command {
125			my ($name, $time, $cb) = @_;
126
127			my $caller = caller;
128	root	1.16	#warn "registering command '$name/$time' to '$caller'";
129	root	1.4
130	root	1.1	push @{ $command{$name} }, [$time, $cb, $caller];
131			$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
132			}
133
134	root	1.16	sub register_extcmd {
135			my ($name, $cb) = @_;
136
137			my $caller = caller;
138			#warn "registering extcmd '$name' to '$caller'";
139
140			$extcmd{$name} = [$cb, $caller];
141			}
142
143	root	1.6	sub register {
144			my ($base, $pkg) = @_;
145
146			for my $idx (0 .. $#EVENT) {
147			if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
148	root	1.16	#warn "registering $EVENT[$idx] hook to '$pkg'\n";
149	root	1.6	$hook[$idx]{$base} = $ref;
150			}
151			}
152			}
153
154	root	1.1	sub load_extension {
155			my ($path) = @_;
156
157			$path =~ /([^\/\\]+)\.ext$/ or die "$path";
158	root	1.5	my $base = $1;
159	root	1.1	my $pkg = $1;
160			$pkg =~ s/[^[:word:]]/_/g;
161			$pkg = "cf::ext::$pkg";
162
163			warn "loading '$path' into '$pkg'\n";
164
165			open my $fh, "<:utf8", $path
166			or die "$path: $!";
167
168			my $source =
169			"package $pkg; use strict; use utf8;\n"
170			. "#line 1 \"$path\"\n{\n"
171			. (do { local $/; <$fh> })
172			. "\n};\n1";
173
174			eval $source
175			or die "$path: $@";
176
177			push @exts, $pkg;
178	root	1.5	$ext_pkg{$base} = $pkg;
179	root	1.1
180	root	1.6	# no strict 'refs';
181	root	1.23	# @{"$pkg\::ISA"} = ext::;
182	root	1.1
183	root	1.6	register $base, $pkg;
184	root	1.1	}
185
186			sub unload_extension {
187			my ($pkg) = @_;
188
189			warn "removing extension $pkg\n";
190
191			# remove hooks
192			for my $idx (0 .. $#EVENT) {
193			delete $hook[$idx]{$pkg};
194			}
195
196			# remove commands
197			for my $name (keys %command) {
198			my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
199
200			if (@cb) {
201			$command{$name} = \@cb;
202			$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
203			} else {
204			delete $command{$name};
205			delete $COMMAND{"$name\000"};
206			}
207			}
208
209	root	1.15	# remove extcmds
210	root	1.16	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
211			delete $extcmd{$name};
212	root	1.15	}
213
214	elmex	1.31	if (my $cb = $pkg->can ("on_unload")) {
215			eval {
216			$cb->($pkg);
217			1
218			} or warn "$pkg unloaded, but with errors: $@";
219			}
220
221	root	1.1	Symbol::delete_package $pkg;
222			}
223
224			sub load_extensions {
225			my $LIBDIR = maps_directory "perl";
226
227			for my $ext (<$LIBDIR/*.ext>) {
228	root	1.3	next unless -r $ext;
229	root	1.2	eval {
230			load_extension $ext;
231			1
232			} or warn "$ext not loaded: $@";
233	root	1.1	}
234			}
235
236			register_command "perl-reload", 0, sub {
237			my ($who, $arg) = @_;
238
239			if ($who->flag (FLAG_WIZ)) {
240	root	1.3	$who->message ("reloading...");
241
242	root	1.1	warn "reloading...\n";
243	root	1.4	eval {
244	root	1.27	# 1. cancel all watchers
245	root	1.20	$_->cancel for Event::all_watchers;
246
247	root	1.27	# 2. unload all extensions
248			for (@exts) {
249			$who->message ("unloading <$_>");
250			unload_extension $_;
251			}
252
253			# 3. unload all modules loaded from $LIBDIR
254			while (my ($k, $v) = each %INC) {
255			next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
256
257			$who->message ("removing <$k>");
258			delete $INC{$k};
259
260			$k =~ s/\.pm$//;
261			$k =~ s/\//::/g;
262
263			if (my $cb = $k->can ("unload_module")) {
264			$cb->();
265			}
266
267			Symbol::delete_package $k;
268			}
269
270			# 4. get rid of ext::, as good as possible
271			Symbol::delete_package "ext::$_"
272			for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);
273
274			# 5. remove register_script_function callbacks
275			# TODO
276
277			# 6. unload cf.pm "a bit"
278	root	1.4	delete $INC{"cf.pm"};
279
280			# don't, removes xs symbols, too
281	root	1.21	#Symbol::delete_package __PACKAGE__;
282	root	1.4
283	root	1.27	# 7. reload cf.pm
284			$who->message ("reloading cf.pm");
285	root	1.4	require cf;
286			};
287			warn $@ if $@;
288			$who->message ($@) if $@;
289	root	1.1	warn "reloaded\n";
290	root	1.3
291			$who->message ("reloaded");
292			} else {
293			$who->message ("Intruder Alert!");
294	root	1.1	}
295			};
296
297	root	1.8	#############################################################################
298	root	1.28	# utility functions
299
300			use JSON::Syck (); # TODO# replace by JSON::PC once working
301
302			sub from_json($) {
303	root	1.29	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
304	root	1.28	JSON::Syck::Load $_[0]
305			}
306
307			sub to_json($) {
308	root	1.29	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
309	root	1.28	JSON::Syck::Dump $_[0]
310			}
311
312			#############################################################################
313			# extcmd framework, basically convert ext <msg>
314	root	1.15	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
315
316			sub on_extcmd {
317			my ($pl, $buf) = @_;
318
319	root	1.28	my $msg = eval { from_json $buf };
320
321			if (ref $msg) {
322			if (my $cb = $extcmd{$msg->{msgtype}}) {
323			if (my %reply = $cb->[0]->($pl, $msg)) {
324			$pl->ext_reply ($msg->{msgid}, %reply);
325			}
326			}
327			} else {
328			warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
329			}
330	root	1.15
331	root	1.28	1
332	root	1.15	}
333
334			#############################################################################
335	root	1.8	# load/save/clean perl data associated with a map
336
337	root	1.7	*on_mapclean = sub {
338	root	1.13	my ($map) = @_;
339	root	1.7
340			my $path = $map->tmpname;
341			defined $path or return;
342
343			unlink "$path.cfperl";
344			};
345
346	root	1.6	*on_mapin =
347			*on_mapload = sub {
348	root	1.13	my ($map) = @_;
349	root	1.6
350			my $path = $map->tmpname;
351			$path = $map->path unless defined $path;
352
353			open my $fh, "<:raw", "$path.cfperl"
354			or return; # no perl data
355
356			my $data = Storable::thaw do { local $/; <$fh> };
357
358			$data->{version} <= 1
359			or return; # too new
360
361			$map->_set_obs ($data->{obs});
362			};
363
364			*on_mapout = sub {
365	root	1.13	my ($map) = @_;
366	root	1.6
367			my $path = $map->tmpname;
368			$path = $map->path unless defined $path;
369
370			my $obs = $map->_get_obs;
371
372			if (defined $obs) {
373			open my $fh, ">:raw", "$path.cfperl"
374			or die "$path.cfperl: $!";
375
376	root	1.8	stat $path;
377
378			print $fh Storable::nfreeze {
379			size => (stat _)[7],
380			time => (stat _)[9],
381			version => 1,
382			obs => $obs,
383			};
384
385			chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible g
386			} else {
387			unlink "$path.cfperl";
388			}
389			};
390
391			#############################################################################
392			# load/save perl data associated with player->ob objects
393
394	root	1.33	sub all_objects(@) {
395			@_, map all_objects ($_->inv), @_
396			}
397
398	root	1.8	*on_player_load = sub {
399	root	1.13	my ($ob, $path) = @_;
400	root	1.8
401	root	1.33	for my $o (all_objects $ob) {
402	root	1.11	if (my $value = $o->get_ob_key_value ("_perl_data")) {
403			$o->set_ob_key_value ("_perl_data");
404
405			%$o = %{ Storable::thaw pack "H*", $value };
406			}
407			}
408	root	1.8	};
409
410			*on_player_save = sub {
411	root	1.13	my ($ob, $path) = @_;
412	root	1.8
413	root	1.11	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
414	root	1.33	for grep %$_, all_objects $ob;
415	root	1.6	};
416
417	root	1.22	#############################################################################
418			# core extensions - in perl
419
420	root	1.23	=item cf::player::exists $login
421
422			Returns true when the given account exists.
423
424			=cut
425
426			sub cf::player::exists($) {
427			cf::player::find $_[0]
428			or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
429			}
430
431	root	1.28	=item $player->reply ($npc, $msg[, $flags])
432
433			Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
434			can be C<undef>. Does the right thing when the player is currently in a
435			dialogue with the given NPC character.
436
437			=cut
438
439	root	1.22	# rough implementation of a future "reply" method that works
440			# with dialog boxes.
441	root	1.23	sub cf::object::player::reply($$$;$) {
442			my ($self, $npc, $msg, $flags) = @_;
443
444			$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
445	root	1.22
446	root	1.24	if ($self->{record_replies}) {
447			push @{ $self->{record_replies} }, [$npc, $msg, $flags];
448			} else {
449			$msg = $npc->name . " says: $msg" if $npc;
450			$self->message ($msg, $flags);
451			}
452	root	1.22	}
453
454	root	1.28	=item $player->ext_reply ($msgid, $msgtype, %msg)
455
456			Sends an ext reply to the player.
457
458			=cut
459
460			sub cf::player::ext_reply($$$%) {
461			my ($self, $id, %msg) = @_;
462
463			$msg{msgid} = $id;
464
465			$self->send ("ext " . to_json \%msg);
466			}
467
468	root	1.22	#############################################################################
469	root	1.23	# map scripting support
470
471			our $safe = new Safe "ext";
472			our $safe_hole = new Safe::Hole;
473
474			$SIG{FPE} = 'IGNORE';
475
476			$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
477
478	root	1.25	# here we export the classes and methods available to script code
479
480			for (
481	root	1.27	["cf::object" => qw(contr pay_amount pay_player)],
482	root	1.25	["cf::object::player" => qw(player)],
483			["cf::player" => qw(peaceful)],
484			) {
485			no strict 'refs';
486			my ($pkg, @funs) = @$_;
487			*{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
488			for @funs;
489			}
490	root	1.23
491			sub safe_eval($;@) {
492			my ($code, %vars) = @_;
493
494			my $qcode = $code;
495			$qcode =~ s/"/‟/g; # not allowed in #line filenames
496			$qcode =~ s/\n/\\n/g;
497
498			local $_;
499			local @ext::cf::_safe_eval_args = values %vars;
500
501	root	1.25	$code =
502	root	1.23	"do {\n"
503			. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
504			. "#line 0 \"{$qcode}\"\n"
505			. $code
506			. "\n}"
507	root	1.25	;
508
509			sub_generation_inc;
510			my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code);
511			sub_generation_inc;
512
513			wantarray ? @res : $res[0]
514	root	1.23	}
515
516			sub register_script_function {
517			my ($fun, $cb) = @_;
518
519			no strict 'refs';
520			*{"ext::$fun"} = $safe_hole->wrap ($cb);
521			}
522
523			#############################################################################
524	root	1.34	# the server's main()
525
526			sub run {
527			Event::loop;
528			}
529
530			#############################################################################
531	root	1.22	# initialisation
532
533	root	1.6	register "<global>", __PACKAGE__;
534
535	root	1.27	unshift @INC, $LIBDIR;
536	root	1.17
537	root	1.1	load_extensions;
538
539	root	1.35	$TICK_WATCHER = Event->timer (
540			prio => 1,
541			at => $NEXT_TICK \|\| 1,
542			cb => sub {
543			cf::server_tick; # one server iteration
544
545			my $NOW = Event::time;
546			$NEXT_TICK += $TICK;
547
548			# if we are delayed by > 0.25 second, skip ticks
549			$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + .25;
550
551			$TICK_WATCHER->at ($NEXT_TICK);
552			$TICK_WATCHER->start;
553			},
554			);
555
556	root	1.1	1
557