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;

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

our @EXPORT =
   qw(read_pak read_arch $ARCH TILESIZE editor_archs 
      arch_extends 
      map_get_tile_stack map_push_tile_stack map_pop_tile_stack
   );

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

sub TILESIZE (){ 32 }

our $ARCH;

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) {
         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
   }
}

# returns the arch/object stack from a tile on a map
sub map_get_tile_stack {
   my ($map, $x, $y) = @_;
   my $as;

   if ($x > 0 || $x < $map->{width}
       || $y > 0 || $y < $map->{height}) {

      $as = $map->{map}{map}[$x][$y] || [];
   }

   return $as;
}

# pop the topmost arch/object from the stack of a tile on a map
sub map_pop_tile_stack {
   my ($map, $x, $y) = @_;

   if ($x > 0 || $x < $map->{width}
       || $y > 0 || $y < $map->{height}) {

      pop @{$map->{map}{map}[$x][$y]};
   }
}

# pushes the arch/object on the stack of a tile on a map
sub map_push_tile_stack {
   my ($map, $x, $y, $arch) = @_;

   if ($x > 0 || $x < $map->{width}
       || $y > 0 || $y < $map->{height}) {

      push @{$map->{map}{map}[$x][$y]}, $arch;
   }
}


# 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;
   }

   return \%paths;
}

# arch_extends determines how the arch looks like on the map,
# bigfaces, linked faces and single faces are handled here
# it returns (<xoffset>, <yoffset>, <width>, <height>)
# NOTE: non rectangular linked faces are not considered
sub arch_extends {
   my ($a) = @_;

   my $TC = \%Crossfire::Tilecache::TILECACHE;

   my $facename =
      $a->{face} || $ARCH->{$a->{_name}}->{face}
         or return ();

   my $tile = $TC->{$facename}
      or (warn "no gfx found for arch '$facename' in arch_size ()"), return;

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

   } elsif ($a->{more}) {
      # linked faces
      my ($miw, $mih, $maw, $mah) = (0, 0, 0, 0);
      do {
         $miw > (0 + $a->{x}) and $miw = $a->{x};
         $mih > (0 + $a->{y}) and $mih = $a->{y};
         $maw < (0 + $a->{x}) and $maw = $a->{x};
         $mah < (0 + $a->{y}) and $mah = $a->{y};
      } while $a = $a->{more};

      return ($miw, $mih, ($maw - $miw) + 1, ($mah - $mih) + 1)

   } else {
      # single face
      return (0, 0, 1, 1);
   }
}

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

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

=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:	1.14
Committed:	Sat Feb 11 16:17:14 2006 UTC (18 years, 3 months ago) by root
Branch:	MAIN
Changes since 1.13:	+72 -8 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
18	elmex	1.11	#XXX: The map_* procedures scream for a map-object
19
20			our @EXPORT =
21	root	1.12	qw(read_pak read_arch $ARCH TILESIZE editor_archs
22			arch_extends
23	elmex	1.11	map_get_tile_stack map_push_tile_stack map_pop_tile_stack
24			);
25	root	1.7
26	root	1.4	our $LIB = $ENV{CROSSFIRE_LIBDIR}
27	root	1.13	or Carp::croak "\$CROSSFIRE_LIBDIR must be set\n";
28	elmex	1.1
29	root	1.7	sub TILESIZE (){ 32 }
30	elmex	1.1
31	root	1.4	our $ARCH;
32	elmex	1.1
33	root	1.13	our %FIELD_MULTILINE = (
34	root	1.14	msg => "endmsg",
35			lore => "endlore",
36	root	1.13	);
37
38			# not used yet, maybe alphabetical is ok
39			our @FIELD_ORDER = (qw(name name_pl));
40
41	root	1.14	sub MOVE_WALK (){ 0x1 }
42			sub MOVE_FLY_LOW (){ 0x2 }
43			sub MOVE_FLY_HIGH (){ 0x4 }
44			sub MOVE_FLYING (){ 0x6 }
45			sub MOVE_SWIM (){ 0x8 }
46			sub MOVE_ALL (){ 0xf }
47
48			sub normalize_arch($) {
49			my ($ob) = @_;
50
51			my $arch = $ARCH->{$ob->{_name}}
52			or (warn "$ob->{_name}: no such archetype", return $ob);
53
54			delete $ob->{$_} for qw(can_knockback can_parry can_impale can_cut can_dam_armour can_apply);
55
56			if ($arch->{type} == 22) { # map
57			my %normalize = (
58			"enter_x" => "hp",
59			"enter_y" => "sp",
60			"width" => "x",
61			"height" => "y",
62			"reset_timeout" => "weight",
63			"swap_time" => "value",
64			"difficulty" => "level",
65			"darkness" => "invisible",
66			"fixed_resettime" => "stand_still",
67			);
68
69			while (my ($k2, $k1) = each %normalize) {
70			if (defined (my $v = delete $ob->{$k1})) {
71			$ob->{$k2} = $v;
72			}
73			}
74			}
75
76			if (defined (my $v = delete $ob->{no_pass})) {
77			$ob->{move_block} = $v ? MOVE_ALL : 0;
78			}
79			if (defined (my $v = delete $ob->{walk_on})) {
80			$ob->{move_on} = $v ? $ob->{move_on} \| MOVE_WALK
81			: $ob->{move_on} & ~MOVE_WALK;
82			}
83			if (defined (my $v = delete $ob->{walk_off})) {
84			$ob->{move_off} = $v ? $ob->{move_off} \| MOVE_WALK
85			: $ob->{move_off} & ~MOVE_WALK;
86			}
87			if (defined (my $v = delete $ob->{fly_on})) {
88			$ob->{move_on} = $v ? $ob->{move_on} \| MOVE_FLY_LOW
89			: $ob->{move_on} & ~MOVE_FLY_LOW;
90			}
91			if (defined (my $v = delete $ob->{fly_off})) {
92			$ob->{move_off} = $v ? $ob->{move_off} \| MOVE_FLY_LOW
93			: $ob->{move_off} & ~MOVE_FLY_LOW;
94			}
95			if (defined (my $v = delete $ob->{flying})) {
96			$ob->{move_type} = $v ? $ob->{move_type} \| MOVE_FLY_LOW
97			: $ob->{move_type} & ~MOVE_FLY_LOW;
98			}
99
100			# if value matches archetype default, delete
101			while (my ($k, $v) = each %$ob) {
102			if (exists $arch->{$k} and $arch->{$k} eq $v) {
103			delete $ob->{$k};
104			}
105			}
106
107			$ob
108			}
109	root	1.13
110	root	1.4	sub read_pak($;$) {
111			my ($path, $cache) = @_;
112	elmex	1.1
113			eval {
114	root	1.4	defined $cache
115			&& -M $cache < -M $path
116			&& Storable::retrieve $cache
117	elmex	1.1	} or do {
118			my %pak;
119
120			open my $fh, "<:raw", $path
121	root	1.13	or Carp::croak "$_[0]: $!";
122	elmex	1.1	while (<$fh>) {
123			my ($type, $id, $len, $path) = split;
124			$path =~ s/.*\///;
125			read $fh, $pak{$path}, $len;
126			}
127
128	root	1.4	Storable::nstore \%pak, $cache
129			if defined $cache;
130	elmex	1.1
131			\%pak
132			}
133			}
134
135			sub read_arch($;$) {
136	root	1.4	my ($path, $cache) = @_;
137
138			eval {
139			defined $cache
140			&& -M $cache < -M $path
141			&& Storable::retrieve $cache
142			} or do {
143			my %arc;
144			my ($more, $prev);
145
146			open my $fh, "<:raw", $path
147	root	1.13	or Carp::croak "$path: $!";
148	elmex	1.1
149	root	1.4	my $parse_block; $parse_block = sub {
150			my %arc = @_;
151	elmex	1.2
152	root	1.4	while (<$fh>) {
153			s/\s+$//;
154			if (/^end$/i) {
155			last;
156			} elsif (/^arch (\S+)$/) {
157	root	1.14	push @{ $arc{inventory} }, normalize_arch $parse_block->(_name => $1);
158	root	1.4	} elsif (/^lore$/) {
159			while (<$fh>) {
160			last if /^endlore\s*$/i;
161			$arc{lore} .= $_;
162			}
163			} elsif (/^msg$/) {
164			while (<$fh>) {
165			last if /^endmsg\s*$/i;
166			$arc{msg} .= $_;
167			}
168			} elsif (/^(\S+)\s(.)$/) {
169			$arc{lc $1} = $2;
170			} elsif (/^\s*($\|#)/) {
171			#
172			} else {
173			warn "$path: unparsable line '$_' in arch $arc{_name}";
174			}
175			}
176	elmex	1.1
177	root	1.4	\%arc
178			};
179	elmex	1.1
180			while (<$fh>) {
181			s/\s+$//;
182	root	1.4	if (/^more$/i) {
183			$more = $prev;
184			} elsif (/^object (\S+)$/i) {
185			my $name = $1;
186			my $arc = $parse_block->(_name => $name);
187
188			if ($more) {
189			$more->{more} = $arc;
190			} else {
191			$arc{$name} = $arc;
192	elmex	1.1	}
193	root	1.4	$prev = $arc;
194			$more = undef;
195			} elsif (/^arch (\S+)$/i) {
196	root	1.14	push @{ $arc{arch} }, normalize_arch $parse_block->(_name => $1);
197	elmex	1.1	} elsif (/^\s*($\|#)/) {
198			#
199			} else {
200	root	1.4	warn "$path: unparseable top-level line '$_'";
201	elmex	1.1	}
202			}
203
204	root	1.4	undef $parse_block; # work around bug in perl not freeing $fh etc.
205	elmex	1.2
206	root	1.4	Storable::nstore \%arc, $cache
207			if defined $cache;
208	elmex	1.1
209	root	1.4	\%arc
210	elmex	1.2	}
211	elmex	1.1	}
212
213	elmex	1.11	# returns the arch/object stack from a tile on a map
214			sub map_get_tile_stack {
215			my ($map, $x, $y) = @_;
216			my $as;
217
218			if ($x > 0 \|\| $x < $map->{width}
219			\|\| $y > 0 \|\| $y < $map->{height}) {
220
221			$as = $map->{map}{map}[$x][$y] \|\| [];
222			}
223
224			return $as;
225			}
226
227			# pop the topmost arch/object from the stack of a tile on a map
228			sub map_pop_tile_stack {
229			my ($map, $x, $y) = @_;
230
231			if ($x > 0 \|\| $x < $map->{width}
232			\|\| $y > 0 \|\| $y < $map->{height}) {
233
234			pop @{$map->{map}{map}[$x][$y]};
235			}
236			}
237
238			# pushes the arch/object on the stack of a tile on a map
239			sub map_push_tile_stack {
240			my ($map, $x, $y, $arch) = @_;
241
242			if ($x > 0 \|\| $x < $map->{width}
243			\|\| $y > 0 \|\| $y < $map->{height}) {
244
245			push @{$map->{map}{map}[$x][$y]}, $arch;
246			}
247			}
248
249
250	elmex	1.10	# put all archs into a hash with editor_face as it's key
251			# NOTE: the arrays in the hash values are references to
252			# the archs from $ARCH
253			sub editor_archs {
254			my %paths;
255
256			for (keys %$ARCH) {
257			my $arch = $ARCH->{$_};
258			push @{$paths{$arch->{editor_folder}}}, \$arch;
259			}
260
261			return \%paths;
262			}
263
264			# arch_extends determines how the arch looks like on the map,
265			# bigfaces, linked faces and single faces are handled here
266			# it returns (<xoffset>, <yoffset>, <width>, <height>)
267			# NOTE: non rectangular linked faces are not considered
268			sub arch_extends {
269			my ($a) = @_;
270
271			my $TC = \%Crossfire::Tilecache::TILECACHE;
272
273			my $facename =
274			$a->{face} \|\| $ARCH->{$a->{_name}}->{face}
275			or return ();
276
277			my $tile = $TC->{$facename}
278			or (warn "no gfx found for arch '$facename' in arch_size ()"), return;
279
280			if ($tile->{w} > 1 \|\| $tile->{h} > 1) {
281			# bigfaces
282			return (0, 0, $tile->{w}, $tile->{h});
283
284			} elsif ($a->{more}) {
285			# linked faces
286			my ($miw, $mih, $maw, $mah) = (0, 0, 0, 0);
287			do {
288			$miw > (0 + $a->{x}) and $miw = $a->{x};
289			$mih > (0 + $a->{y}) and $mih = $a->{y};
290			$maw < (0 + $a->{x}) and $maw = $a->{x};
291			$mah < (0 + $a->{y}) and $mah = $a->{y};
292			} while $a = $a->{more};
293
294			return ($miw, $mih, ($maw - $miw) + 1, ($mah - $mih) + 1)
295
296			} else {
297			# single face
298			return (0, 0, 1, 1);
299			}
300			}
301
302	root	1.4	sub init($) {
303			my ($cachedir) = @_;
304	elmex	1.1
305	root	1.4	$ARCH = read_arch "$LIB/archetypes", "$cachedir/archetypes.pst";
306	elmex	1.1	}
307
308			=head1 AUTHOR
309
310			Marc Lehmann <schmorp@schmorp.de>
311			http://home.schmorp.de/
312
313			Robin Redeker <elmex@ta-sa.org>
314			http://www.ta-sa.org/
315
316			=cut
317	root	1.4
318			1