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=head1 NAME |
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|
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Crossfire - Crossfire maphandling |
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|
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=cut |
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|
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package Crossfire; |
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|
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our $VERSION = '0.1'; |
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|
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use strict; |
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|
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use base 'Exporter'; |
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|
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use Storable; |
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|
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#XXX: The map_* procedures scream for a map-object |
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|
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our @EXPORT = |
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qw(read_pak read_arch $ARCH TILESIZE editor_archs |
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arch_extends |
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map_get_tile_stack map_push_tile_stack map_pop_tile_stack |
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); |
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|
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our $LIB = $ENV{CROSSFIRE_LIBDIR} |
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or die "\$CROSSFIRE_LIBDIR must be set\n"; |
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|
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sub TILESIZE (){ 32 } |
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|
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our $ARCH; |
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|
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sub read_pak($;$) { |
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my ($path, $cache) = @_; |
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|
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eval { |
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defined $cache |
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&& -M $cache < -M $path |
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&& Storable::retrieve $cache |
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} or do { |
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my %pak; |
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|
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open my $fh, "<:raw", $path |
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or die "$_[0]: $!"; |
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while (<$fh>) { |
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my ($type, $id, $len, $path) = split; |
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$path =~ s/.*\///; |
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read $fh, $pak{$path}, $len; |
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} |
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|
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Storable::nstore \%pak, $cache |
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if defined $cache; |
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|
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\%pak |
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} |
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} |
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|
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sub read_arch($;$) { |
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my ($path, $cache) = @_; |
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|
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eval { |
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defined $cache |
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&& -M $cache < -M $path |
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&& Storable::retrieve $cache |
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} or do { |
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my %arc; |
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my ($more, $prev); |
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|
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open my $fh, "<:raw", $path |
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or die "$path: $!"; |
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|
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my $parse_block; $parse_block = sub { |
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my %arc = @_; |
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|
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while (<$fh>) { |
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s/\s+$//; |
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if (/^end$/i) { |
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last; |
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} elsif (/^arch (\S+)$/) { |
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push @{ $arc{inventory} }, $parse_block->(_name => $1); |
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} elsif (/^lore$/) { |
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while (<$fh>) { |
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last if /^endlore\s*$/i; |
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$arc{lore} .= $_; |
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} |
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} elsif (/^msg$/) { |
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while (<$fh>) { |
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last if /^endmsg\s*$/i; |
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$arc{msg} .= $_; |
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} |
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} elsif (/^(\S+)\s*(.*)$/) { |
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$arc{lc $1} = $2; |
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} elsif (/^\s*($|#)/) { |
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# |
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} else { |
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warn "$path: unparsable line '$_' in arch $arc{_name}"; |
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} |
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} |
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|
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\%arc |
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}; |
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|
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while (<$fh>) { |
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s/\s+$//; |
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if (/^more$/i) { |
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$more = $prev; |
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} elsif (/^object (\S+)$/i) { |
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my $name = $1; |
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my $arc = $parse_block->(_name => $name); |
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|
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if ($more) { |
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$more->{more} = $arc; |
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} else { |
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$arc{$name} = $arc; |
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} |
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$prev = $arc; |
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$more = undef; |
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} elsif (/^arch (\S+)$/i) { |
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push @{ $arc{arch} }, $parse_block->(_name => $1); |
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} elsif (/^\s*($|#)/) { |
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# |
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} else { |
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warn "$path: unparseable top-level line '$_'"; |
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} |
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} |
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|
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undef $parse_block; # work around bug in perl not freeing $fh etc. |
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|
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Storable::nstore \%arc, $cache |
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if defined $cache; |
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|
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\%arc |
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} |
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} |
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|
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# returns the arch/object stack from a tile on a map |
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sub map_get_tile_stack { |
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my ($map, $x, $y) = @_; |
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my $as; |
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|
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if ($x > 0 || $x < $map->{width} |
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|| $y > 0 || $y < $map->{height}) { |
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|
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$as = $map->{map}{map}[$x][$y] || []; |
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} |
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|
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return $as; |
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} |
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|
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# pop the topmost arch/object from the stack of a tile on a map |
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sub map_pop_tile_stack { |
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my ($map, $x, $y) = @_; |
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|
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if ($x > 0 || $x < $map->{width} |
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|| $y > 0 || $y < $map->{height}) { |
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|
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pop @{$map->{map}{map}[$x][$y]}; |
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} |
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} |
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|
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# pushes the arch/object on the stack of a tile on a map |
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sub map_push_tile_stack { |
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my ($map, $x, $y, $arch) = @_; |
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|
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if ($x > 0 || $x < $map->{width} |
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|| $y > 0 || $y < $map->{height}) { |
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|
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push @{$map->{map}{map}[$x][$y]}, $arch; |
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} |
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} |
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|
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|
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# put all archs into a hash with editor_face as it's key |
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# NOTE: the arrays in the hash values are references to |
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# the archs from $ARCH |
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sub editor_archs { |
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my %paths; |
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|
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for (keys %$ARCH) { |
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my $arch = $ARCH->{$_}; |
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push @{$paths{$arch->{editor_folder}}}, \$arch; |
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} |
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|
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return \%paths; |
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} |
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|
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# arch_extends determines how the arch looks like on the map, |
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# bigfaces, linked faces and single faces are handled here |
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# it returns (<xoffset>, <yoffset>, <width>, <height>) |
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# NOTE: non rectangular linked faces are not considered |
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sub arch_extends { |
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my ($a) = @_; |
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|
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my $TC = \%Crossfire::Tilecache::TILECACHE; |
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|
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my $facename = |
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$a->{face} || $ARCH->{$a->{_name}}->{face} |
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or return (); |
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|
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my $tile = $TC->{$facename} |
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or (warn "no gfx found for arch '$facename' in arch_size ()"), return; |
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|
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if ($tile->{w} > 1 || $tile->{h} > 1) { |
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# bigfaces |
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return (0, 0, $tile->{w}, $tile->{h}); |
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|
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} elsif ($a->{more}) { |
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# linked faces |
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my ($miw, $mih, $maw, $mah) = (0, 0, 0, 0); |
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do { |
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$miw > (0 + $a->{x}) and $miw = $a->{x}; |
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$mih > (0 + $a->{y}) and $mih = $a->{y}; |
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$maw < (0 + $a->{x}) and $maw = $a->{x}; |
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$mah < (0 + $a->{y}) and $mah = $a->{y}; |
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} while $a = $a->{more}; |
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|
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return ($miw, $mih, ($maw - $miw) + 1, ($mah - $mih) + 1) |
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|
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} else { |
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# single face |
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return (0, 0, 1, 1); |
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} |
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} |
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|
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sub init($) { |
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my ($cachedir) = @_; |
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|
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$ARCH = read_arch "$LIB/archetypes", "$cachedir/archetypes.pst"; |
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} |
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|
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=head1 AUTHOR |
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|
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Marc Lehmann <schmorp@schmorp.de> |
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http://home.schmorp.de/ |
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|
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Robin Redeker <elmex@ta-sa.org> |
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http://www.ta-sa.org/ |
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|
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=cut |
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|
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1 |
