deliantra/Deliantra/Deliantra.pm

=head1 NAME

Crossfire - Crossfire maphandling

=cut

package Crossfire;

our $VERSION = '0.1';

use strict;

use base 'Exporter';

use Carp ();
use Storable;
use List::Util qw(min max);

#XXX: The map_* procedures scream for a map-object

our @EXPORT =
   qw(read_pak read_arch %ARCH TILESIZE $TILE %FACE editor_archs arch_extents);

our $LIB = $ENV{CROSSFIRE_LIBDIR}
   or Carp::croak "\$CROSSFIRE_LIBDIR must be set\n";

sub TILESIZE (){ 32 }

our $CACHEDIR;
our %ARCH;
our %FACE;
our $TILE;

our %FIELD_MULTILINE = (
   msg  => "endmsg",
   lore => "endlore",
);

# not used yet, maybe alphabetical is ok
our @FIELD_ORDER = (qw(name name_pl));

sub MOVE_WALK      (){ 0x1 }
sub MOVE_FLY_LOW   (){ 0x2 }
sub MOVE_FLY_HIGH  (){ 0x4 }
sub MOVE_FLYING    (){ 0x6 }
sub MOVE_SWIM      (){ 0x8 }
sub MOVE_ALL       (){ 0xf }

sub normalize_arch($) {
   my ($ob) = @_;

   my $arch = $ARCH{$ob->{_name}}
      or (warn "$ob->{_name}: no such archetype", return $ob);

   delete $ob->{$_} for qw(can_knockback can_parry can_impale can_cut can_dam_armour can_apply);

   if ($arch->{type} == 22) { # map
      my %normalize = (
         "enter_x"         => "hp",
         "enter_y"         => "sp",
         "width"           => "x",
         "height"          => "y",
         "reset_timeout"   => "weight",
         "swap_time"       => "value",
         "difficulty"      => "level",
         "darkness"        => "invisible",
         "fixed_resettime" => "stand_still",
      );

      while (my ($k2, $k1) = each %normalize) {
         if (defined (my $v = delete $ob->{$k1})) {
            $ob->{$k2} = $v;
         }
      }
   }

   if (defined (my $v = delete $ob->{no_pass})) {
      $ob->{move_block} = $v ? MOVE_ALL : 0;
   }
   if (defined (my $v = delete $ob->{walk_on})) {
      $ob->{move_on} = $v ? $ob->{move_on} | MOVE_WALK
                          : $ob->{move_on} & ~MOVE_WALK;
   }
   if (defined (my $v = delete $ob->{walk_off})) {
      $ob->{move_off} = $v ? $ob->{move_off} | MOVE_WALK
                           : $ob->{move_off} & ~MOVE_WALK;
   }
   if (defined (my $v = delete $ob->{fly_on})) {
      $ob->{move_on} = $v ? $ob->{move_on} | MOVE_FLY_LOW
                          : $ob->{move_on} & ~MOVE_FLY_LOW;
   }
   if (defined (my $v = delete $ob->{fly_off})) {
      $ob->{move_off} = $v ? $ob->{move_off} | MOVE_FLY_LOW
                           : $ob->{move_off} & ~MOVE_FLY_LOW;
   }
   if (defined (my $v = delete $ob->{flying})) {
      $ob->{move_type} = $v ? $ob->{move_type} | MOVE_FLY_LOW
                            : $ob->{move_type} & ~MOVE_FLY_LOW;
   }

   # if value matches archetype default, delete
   while (my ($k, $v) = each %$ob) {
      if (exists $arch->{$k} and $arch->{$k} eq $v) {
         next if $k eq "_name";
         delete $ob->{$k};
      }
   }

   $ob
}

sub read_pak($;$) {
   my ($path, $cache) = @_;

   eval {
      defined $cache
      && -M $cache < -M $path
      && Storable::retrieve $cache
   } or do {
      my %pak;

      open my $fh, "<:raw", $path
         or Carp::croak "$_[0]: $!";
      while (<$fh>) {
         my ($type, $id, $len, $path) = split;
         $path =~ s/.*\///;
         read $fh, $pak{$path}, $len;
      }

      Storable::nstore \%pak, $cache
         if defined $cache;

      \%pak
   }
}

sub read_arch($;$) {
   my ($path, $cache) = @_;

   eval {
      defined $cache
      && -M $cache < -M $path
      && Storable::retrieve $cache
   } or do {
      my %arc;
      my ($more, $prev);

      open my $fh, "<:raw", $path
         or Carp::croak "$path: $!";

      my $parse_block; $parse_block = sub {
         my %arc = @_;

         while (<$fh>) {
            s/\s+$//;
            if (/^end$/i) {
               last;
            } elsif (/^arch (\S+)$/) {
               push @{ $arc{inventory} }, normalize_arch $parse_block->(_name => $1);
            } elsif (/^lore$/) {
               while (<$fh>) {
                  last if /^endlore\s*$/i;
                  $arc{lore} .= $_;
               }
            } elsif (/^msg$/) {
               while (<$fh>) {
                  last if /^endmsg\s*$/i;
                  $arc{msg} .= $_;
               }
            } elsif (/^(\S+)\s*(.*)$/) {
               $arc{lc $1} = $2;
            } elsif (/^\s*($|#)/) {
               #
            } else {
               warn "$path: unparsable line '$_' in arch $arc{_name}";
            }
         }

         \%arc
      };

      while (<$fh>) {
         s/\s+$//;
         if (/^more$/i) {
            $more = $prev;
         } elsif (/^object (\S+)$/i) {
            my $name = $1;
            my $arc = $parse_block->(_name => $name);

            if ($more) {
               $more->{more} = $arc;
            } else {
               $arc{$name} = $arc;
            }
            $prev = $arc;
            $more = undef;
         } elsif (/^arch (\S+)$/i) {
            push @{ $arc{arch} }, normalize_arch $parse_block->(_name => $1);
         } elsif (/^\s*($|#)/) {
            #
         } else {
            warn "$path: unparseable top-level line '$_'";
         }
      }

      undef $parse_block; # work around bug in perl not freeing $fh etc.

      Storable::nstore \%arc, $cache
         if defined $cache;

      \%arc
   }
}

# put all archs into a hash with editor_face as it's key
# NOTE: the arrays in the hash values are references to 
# the archs from $ARCH
sub editor_archs {
   my %paths;

   for (keys %ARCH) {
      my $arch = $ARCH{$_};
      push @{$paths{$arch->{editor_folder}}}, \$arch;
   }

   \%paths
}

# arch_extents determines the extents of a given arch
# bigfaces, linked faces and single faces are handled here
# it returns (minx, miny, maxx, maxy)
sub arch_extents {
   my ($a) = @_;

   my $o = $ARCH{$a->{_name}}
      or return;

   my $face = $FACE{$a->{face} || $o->{face}}
      or (warn "no face data found for arch '$a->{_name}'"), return;

   if ($face->{w} > 1 || $face->{h} > 1) { 
      # bigface
      return (0, 0, $face->{w} - 1, $face->{h} - 1);

   } elsif ($o->{more}) {
      # linked face
      my ($minx, $miny, $maxx, $maxy) = ($o->{x}, $o->{y}) x 2;

      for (; $o; $o = $o->{more}) {
         $minx = min $minx, $o->{x};
         $miny = min $miny, $o->{y};
         $maxx = max $maxx, $o->{x};
         $maxy = max $maxy, $o->{y};
      }

      return ($minx, $miny, $maxx, $maxy);

   } else {
      # single face
      return (0, 0, 0, 0);
   }
}

sub init($) {
   my ($cachedir) = @_;

   return if %ARCH;

   *ARCH = read_arch "$LIB/archetypes",  "$cachedir/archetypes.pst";
}

$CACHEDIR ||= "$ENV{HOME}/.crossfire";

init $CACHEDIR;

=head1 AUTHOR

 Marc Lehmann <schmorp@schmorp.de>
 http://home.schmorp.de/

 Robin Redeker <elmex@ta-sa.org>
 http://www.ta-sa.org/

=cut

1
Revision:	1.15
Committed:	Sun Feb 12 04:50:24 2006 UTC (18 years, 3 months ago) by root
Branch:	MAIN
Changes since 1.14:	+42 -74 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	elmex	1.1	=head1 NAME
2
3			Crossfire - Crossfire maphandling
4
5			=cut
6
7	root	1.4	package Crossfire;
8
9	elmex	1.3	our $VERSION = '0.1';
10	elmex	1.1
11			use strict;
12
13	root	1.7	use base 'Exporter';
14
15	root	1.13	use Carp ();
16	elmex	1.1	use Storable;
17	root	1.15	use List::Util qw(min max);
18	elmex	1.1
19	elmex	1.11	#XXX: The map_* procedures scream for a map-object
20
21			our @EXPORT =
22	root	1.15	qw(read_pak read_arch %ARCH TILESIZE $TILE %FACE editor_archs arch_extents);
23	root	1.7
24	root	1.4	our $LIB = $ENV{CROSSFIRE_LIBDIR}
25	root	1.13	or Carp::croak "\$CROSSFIRE_LIBDIR must be set\n";
26	elmex	1.1
27	root	1.7	sub TILESIZE (){ 32 }
28	elmex	1.1
29	root	1.15	our $CACHEDIR;
30			our %ARCH;
31			our %FACE;
32			our $TILE;
33	elmex	1.1
34	root	1.13	our %FIELD_MULTILINE = (
35	root	1.14	msg => "endmsg",
36			lore => "endlore",
37	root	1.13	);
38
39			# not used yet, maybe alphabetical is ok
40			our @FIELD_ORDER = (qw(name name_pl));
41
42	root	1.14	sub MOVE_WALK (){ 0x1 }
43			sub MOVE_FLY_LOW (){ 0x2 }
44			sub MOVE_FLY_HIGH (){ 0x4 }
45			sub MOVE_FLYING (){ 0x6 }
46			sub MOVE_SWIM (){ 0x8 }
47			sub MOVE_ALL (){ 0xf }
48
49			sub normalize_arch($) {
50			my ($ob) = @_;
51
52	root	1.15	my $arch = $ARCH{$ob->{_name}}
53	root	1.14	or (warn "$ob->{_name}: no such archetype", return $ob);
54
55			delete $ob->{$_} for qw(can_knockback can_parry can_impale can_cut can_dam_armour can_apply);
56
57			if ($arch->{type} == 22) { # map
58			my %normalize = (
59			"enter_x" => "hp",
60			"enter_y" => "sp",
61			"width" => "x",
62			"height" => "y",
63			"reset_timeout" => "weight",
64			"swap_time" => "value",
65			"difficulty" => "level",
66			"darkness" => "invisible",
67			"fixed_resettime" => "stand_still",
68			);
69
70			while (my ($k2, $k1) = each %normalize) {
71			if (defined (my $v = delete $ob->{$k1})) {
72			$ob->{$k2} = $v;
73			}
74			}
75			}
76
77			if (defined (my $v = delete $ob->{no_pass})) {
78			$ob->{move_block} = $v ? MOVE_ALL : 0;
79			}
80			if (defined (my $v = delete $ob->{walk_on})) {
81			$ob->{move_on} = $v ? $ob->{move_on} \| MOVE_WALK
82			: $ob->{move_on} & ~MOVE_WALK;
83			}
84			if (defined (my $v = delete $ob->{walk_off})) {
85			$ob->{move_off} = $v ? $ob->{move_off} \| MOVE_WALK
86			: $ob->{move_off} & ~MOVE_WALK;
87			}
88			if (defined (my $v = delete $ob->{fly_on})) {
89			$ob->{move_on} = $v ? $ob->{move_on} \| MOVE_FLY_LOW
90			: $ob->{move_on} & ~MOVE_FLY_LOW;
91			}
92			if (defined (my $v = delete $ob->{fly_off})) {
93			$ob->{move_off} = $v ? $ob->{move_off} \| MOVE_FLY_LOW
94			: $ob->{move_off} & ~MOVE_FLY_LOW;
95			}
96			if (defined (my $v = delete $ob->{flying})) {
97			$ob->{move_type} = $v ? $ob->{move_type} \| MOVE_FLY_LOW
98			: $ob->{move_type} & ~MOVE_FLY_LOW;
99			}
100
101			# if value matches archetype default, delete
102			while (my ($k, $v) = each %$ob) {
103			if (exists $arch->{$k} and $arch->{$k} eq $v) {
104	root	1.15	next if $k eq "_name";
105	root	1.14	delete $ob->{$k};
106			}
107			}
108
109			$ob
110			}
111	root	1.13
112	root	1.4	sub read_pak($;$) {
113			my ($path, $cache) = @_;
114	elmex	1.1
115			eval {
116	root	1.4	defined $cache
117			&& -M $cache < -M $path
118			&& Storable::retrieve $cache
119	elmex	1.1	} or do {
120			my %pak;
121
122			open my $fh, "<:raw", $path
123	root	1.13	or Carp::croak "$_[0]: $!";
124	elmex	1.1	while (<$fh>) {
125			my ($type, $id, $len, $path) = split;
126			$path =~ s/.*\///;
127			read $fh, $pak{$path}, $len;
128			}
129
130	root	1.4	Storable::nstore \%pak, $cache
131			if defined $cache;
132	elmex	1.1
133			\%pak
134			}
135			}
136
137			sub read_arch($;$) {
138	root	1.4	my ($path, $cache) = @_;
139
140			eval {
141			defined $cache
142			&& -M $cache < -M $path
143			&& Storable::retrieve $cache
144			} or do {
145			my %arc;
146			my ($more, $prev);
147
148			open my $fh, "<:raw", $path
149	root	1.13	or Carp::croak "$path: $!";
150	elmex	1.1
151	root	1.4	my $parse_block; $parse_block = sub {
152			my %arc = @_;
153	elmex	1.2
154	root	1.4	while (<$fh>) {
155			s/\s+$//;
156			if (/^end$/i) {
157			last;
158			} elsif (/^arch (\S+)$/) {
159	root	1.14	push @{ $arc{inventory} }, normalize_arch $parse_block->(_name => $1);
160	root	1.4	} elsif (/^lore$/) {
161			while (<$fh>) {
162			last if /^endlore\s*$/i;
163			$arc{lore} .= $_;
164			}
165			} elsif (/^msg$/) {
166			while (<$fh>) {
167			last if /^endmsg\s*$/i;
168			$arc{msg} .= $_;
169			}
170			} elsif (/^(\S+)\s(.)$/) {
171			$arc{lc $1} = $2;
172			} elsif (/^\s*($\|#)/) {
173			#
174			} else {
175			warn "$path: unparsable line '$_' in arch $arc{_name}";
176			}
177			}
178	elmex	1.1
179	root	1.4	\%arc
180			};
181	elmex	1.1
182			while (<$fh>) {
183			s/\s+$//;
184	root	1.4	if (/^more$/i) {
185			$more = $prev;
186			} elsif (/^object (\S+)$/i) {
187			my $name = $1;
188			my $arc = $parse_block->(_name => $name);
189
190			if ($more) {
191			$more->{more} = $arc;
192			} else {
193			$arc{$name} = $arc;
194	elmex	1.1	}
195	root	1.4	$prev = $arc;
196			$more = undef;
197			} elsif (/^arch (\S+)$/i) {
198	root	1.14	push @{ $arc{arch} }, normalize_arch $parse_block->(_name => $1);
199	elmex	1.1	} elsif (/^\s*($\|#)/) {
200			#
201			} else {
202	root	1.4	warn "$path: unparseable top-level line '$_'";
203	elmex	1.1	}
204			}
205
206	root	1.4	undef $parse_block; # work around bug in perl not freeing $fh etc.
207	elmex	1.2
208	root	1.4	Storable::nstore \%arc, $cache
209			if defined $cache;
210	elmex	1.1
211	root	1.4	\%arc
212	elmex	1.2	}
213	elmex	1.1	}
214
215	elmex	1.10	# put all archs into a hash with editor_face as it's key
216			# NOTE: the arrays in the hash values are references to
217			# the archs from $ARCH
218			sub editor_archs {
219			my %paths;
220
221	root	1.15	for (keys %ARCH) {
222			my $arch = $ARCH{$_};
223	elmex	1.10	push @{$paths{$arch->{editor_folder}}}, \$arch;
224			}
225
226	root	1.15	\%paths
227	elmex	1.10	}
228
229	root	1.15	# arch_extents determines the extents of a given arch
230	elmex	1.10	# bigfaces, linked faces and single faces are handled here
231	root	1.15	# it returns (minx, miny, maxx, maxy)
232			sub arch_extents {
233	elmex	1.10	my ($a) = @_;
234
235	root	1.15	my $o = $ARCH{$a->{_name}}
236			or return;
237	elmex	1.10
238	root	1.15	my $face = $FACE{$a->{face} \|\| $o->{face}}
239			or (warn "no face data found for arch '$a->{_name}'"), return;
240	elmex	1.10
241	root	1.15	if ($face->{w} > 1 \|\| $face->{h} > 1) {
242			# bigface
243			return (0, 0, $face->{w} - 1, $face->{h} - 1);
244
245			} elsif ($o->{more}) {
246			# linked face
247			my ($minx, $miny, $maxx, $maxy) = ($o->{x}, $o->{y}) x 2;
248
249			for (; $o; $o = $o->{more}) {
250			$minx = min $minx, $o->{x};
251			$miny = min $miny, $o->{y};
252			$maxx = max $maxx, $o->{x};
253			$maxy = max $maxy, $o->{y};
254			}
255
256			return ($minx, $miny, $maxx, $maxy);
257	elmex	1.10
258			} else {
259			# single face
260	root	1.15	return (0, 0, 0, 0);
261	elmex	1.10	}
262			}
263
264	root	1.4	sub init($) {
265			my ($cachedir) = @_;
266	elmex	1.1
267	root	1.15	return if %ARCH;
268
269			*ARCH = read_arch "$LIB/archetypes", "$cachedir/archetypes.pst";
270	elmex	1.1	}
271
272	root	1.15	$CACHEDIR \|\|= "$ENV{HOME}/.crossfire";
273
274			init $CACHEDIR;
275
276	elmex	1.1	=head1 AUTHOR
277
278			Marc Lehmann <schmorp@schmorp.de>
279			http://home.schmorp.de/
280
281			Robin Redeker <elmex@ta-sa.org>
282			http://www.ta-sa.org/
283
284			=cut
285	root	1.4
286			1