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package GCE::Util; |
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=head1 NAME |
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|
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GCE::Util - some utility functions |
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|
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=over 4 |
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|
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=cut |
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|
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use base 'Exporter'; |
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|
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use Crossfire; |
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|
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use Carp (); |
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use Storable; |
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use List::Util qw(min max); |
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|
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use Crossfire; |
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use Crossfire::MapWidget; |
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|
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our @EXPORT = qw(insert_arch_stack_layer replace_arch_stack_layer new_arch_pb fill_pb_from_arch arch_is_floor stack_find_floor stack_find_wall stack_find arch_is_wall arch_is_monster); |
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|
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sub new_arch_pb { |
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# this is awful, is this really the best way? |
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my $pb = new Gtk2::Gdk::Pixbuf 'rgb', 1, 8, TILESIZE, TILESIZE; |
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return $pb; |
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} |
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|
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sub fill_pb_from_arch { |
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my ($pb, $arch) = @_; |
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|
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$pb->fill (0x00000000); |
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$TILE->composite ($pb, |
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0, 0, |
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TILESIZE, TILESIZE, |
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- ($arch->{_face} % 64) * TILESIZE, - TILESIZE * int $arch->{_face} / 64, |
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1, 1, 'nearest', 255 |
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); |
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} |
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|
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sub classify_arch_layer { |
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my ($arch) = @_; |
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|
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if ($arch->{invisible}) { # just a heuristic for 'special' tiles (er. pedestals) |
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|
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return 'below'; |
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|
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} elsif ($arch->{monster}) { |
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|
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return 'top'; |
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|
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} else { # $arch->{is_floor} and all other arches are 'between' monsters and floor |
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|
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return 'between'; |
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} |
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} |
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|
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sub arch_is_floor { |
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my ($a) = @_; |
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return $Crossfire::ARCH{$a->{_name}}->{is_floor}; |
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} |
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|
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sub arch_is_wall { |
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my ($a) = @_; |
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return $Crossfire::ARCH{$a->{_name}}->{no_pass}; |
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} |
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|
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sub arch_is_monster { |
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my ($a) = @_; |
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my $arch = $Crossfire::ARCH{$a->{_name}}; |
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return $arch->{alive} and ($arch->{monster} or $arch->{generator}); |
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} |
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|
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sub stack_find { |
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my ($stack, $dir, $pred) = @_; |
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|
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|
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if ($dir eq 'from_top') { |
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my $i = scalar (@$stack) - 1; |
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if ($i < 0) { $i = 0 } |
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|
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for (reverse @$stack) { |
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$pred->($_) |
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and return $i; |
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|
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$i--; |
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} |
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|
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} else { |
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my $i = 0; |
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|
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for (@$stack) { |
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$pred->($_) |
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and return $i; |
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|
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$i++; |
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} |
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} |
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|
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return 0; |
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|
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} |
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|
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sub stack_find_floor { |
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my ($stack, $dir) = @_; |
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return stack_find ($stack, $dir, \&arch_is_floor); |
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} |
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|
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sub stack_find_wall { |
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my ($stack, $dir) = @_; |
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return stack_find ($stack, $dir, \&arch_is_wall); |
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} |
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|
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sub insert_arch_stack_layer { |
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my ($stack, $arch) = @_; |
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|
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unless (@$stack) { |
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return [ $arch ]; |
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} |
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|
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my @outstack; |
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|
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my $l = classify_arch_layer ($Crossfire::ARCH{$arch->{_name}}); |
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|
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if ($l eq 'between') { |
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|
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# loop until we reached the first 'between' arch above 'below' arches and the floor |
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while (my $a = shift @$stack) { |
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|
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unless ($Crossfire::ARCH{$a->{_name}}->{is_floor} |
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or classify_arch_layer ($Crossfire::ARCH{$a->{_name}}) eq 'below') { |
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|
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unshift @$stack, $a; |
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last; |
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} |
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|
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push @outstack, $a; |
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} |
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|
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# ignore duplicates |
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# FIXME: Broken if non-floor are drawn (too tired to fix) |
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return [ @outstack, @$stack ] |
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if @outstack and $outstack[-1]->{_name} eq $arch->{_name}; |
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|
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push @outstack, ($arch, @$stack); |
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|
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} elsif ($l eq 'top') { |
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|
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# ignore duplicates |
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return [ @$stack ] |
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if $stack->[-1]->{_name} eq $arch->{_name}; |
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|
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@outstack = (@$stack, $arch); |
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|
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} else { |
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|
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# ignore duplicates |
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return [ @$stack ] |
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if $stack->[0]->{_name} eq $arch->{_name}; |
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|
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@outstack = ($arch, @$stack); |
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} |
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|
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return \@outstack; |
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} |
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|
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sub replace_arch_stack_layer { |
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my ($stack, $arch) = @_; |
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|
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my @outstack; |
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|
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my $l = classify_arch_layer ($Crossfire::ARCH{$arch->{_name}}); |
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|
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if ($l eq 'between') { |
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|
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while (shift @$stack) { |
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last unless $Crossfire::ARCH{$_->{_name}}->{is_floor}; |
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push @outstack, $_; |
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} |
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|
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if (@outstack and $Crossfire::ARCH{$outstack[-1]->{_name}}->{is_floor}) { |
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pop @outstack; |
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} |
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|
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push @outstack, ($arch, @$stack); |
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|
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} elsif ($l eq 'top') { |
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|
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@outstack = (@$stack, $arch); |
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|
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} else { |
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|
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@outstack = ($arch, @$stack); |
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} |
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|
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return \@outstack; |
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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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1; |
