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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 arch2map $ARCH TILESIZE editor_archs |
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arch2pickmap 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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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 - $mih) + 1) |
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|
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} else { |
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# single face |
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return (0, 0, 1, 1); |
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} |
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} |
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|
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# arch2pickmap forms a list of archs to a pickmap |
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sub arch2pickmap { |
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my ($archs, $w) = @_; |
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|
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# sort archs alphabetiacally |
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my $archs = [ sort { ${$a}->{_name} cmp ${$b}->{_name} } @$archs ]; |
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|
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$w ||= 10; # default width |
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my $num = @$archs; |
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my $map = { }; |
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# overall placement coords |
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my $x = 0; |
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my $y = 0; |
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|
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my ($maxh, $maxw) = (0, 0); # maximum sizes, to set map width/height later |
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my $drawn_archs = 1; # line-break counter |
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my $max_line_height = 1; |
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|
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for (my $i = 0; $i < $num; $i++) { |
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|
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defined ${$archs->[$i]}->{face} or next; |
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|
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# check whether this tile was already written (see below at (b)) |
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unless (defined $map->{map}[$x][$y]) { |
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|
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my ($xoffs, $yoffs, $arch_w, $arch_h) = arch_extends (${$archs->[$i]}); |
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|
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# these are special placement coords, for chained faces which |
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# have a special placement offset |
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my ($place_x, $place_y) = ($x, $y); |
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$xoffs < 0 and |
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$place_x += -$xoffs; |
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$yoffs < 0 and |
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$place_y += -$yoffs; |
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|
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# iterate over the tiles this arch takes |
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# NOTE: Chained archs are maybe not a rectangle, but i don't care |
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# much for that on pickmaps |
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|
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for (my $xi = 0; $xi < $arch_w; $xi++) { |
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for (my $yi = 0; $yi < $arch_h; $yi++) { |
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|
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my ($lx, $ly) = ($x + $xi, $y + $yi); |
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|
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if ($lx == $place_x and $ly == $place_y) { |
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push @{$map->{map}[$place_x][$place_y]}, my $a = ${$archs->[$i]}; |
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|
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} else { |
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|
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# (b): here we set occupied tiles, but without the arch |
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$map->{map}[$lx][$ly] = []; |
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} |
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} |
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} |
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$drawn_archs++; |
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|
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$x += $arch_w - 1; |
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$max_line_height < $arch_h |
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and $max_line_height = $arch_h; |
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|
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} else { |
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$i--; |
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} |
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|
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|
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$x++; |
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|
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if ($x > $w) { |
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|
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$y += $max_line_height; |
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$max_line_height = 1; |
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$x = 0; |
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} |
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|
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$maxw < ($x + 1) and $maxw = $x + 1; |
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$maxh < ($y + 1) and $maxh = $y + 1; |
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} |
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|
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$map->{height} = $maxh; |
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$map->{width} = $maxw; |
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|
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return $map; |
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} |
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|
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sub arch2map($;$) { |
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my ($mapa) = @_; |
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|
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my %meta; |
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|
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my ($mapx, $mapy); |
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|
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my $map; |
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|
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for (@{ $mapa->{arch} }) { |
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my ($x, $y) = (delete $_->{x}, delete $_->{y}); |
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|
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if ($_->{_name} eq "map") { |
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$meta{info} = $_; |
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|
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$mapx = $_->{width} || $x; |
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$mapy = $_->{height} || $y; |
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} else { |
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push @{ $map->[$x][$y] }, $_; |
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|
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# arch map is unreliable w.r.t. width and height |
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$mapx = $x + 1 if $mapx <= $x; |
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$mapy = $y + 1 if $mapy <= $y; |
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#$mapx = $a->{x} + 1, warn "$mapname: arch '$a->{_name}' outside map width at ($a->{x}|$a->{y})\n" if $mapx <= $a->{x}; |
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#$mapy = $a->{y} + 1, warn "$mapname: arch '$a->{_name}' outside map height at ($a->{x}|$a->{y})\n" if $mapy <= $a->{y}; |
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} |
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} |
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|
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$meta{width} = $mapx; |
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$meta{height} = $mapy; |
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$meta{map} = $map; |
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|
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\%meta |
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} |
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|
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sub init($) { |
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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 |
