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=head1 NAME |
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Deliantra::Protocol - client protocol module |
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=head1 SYNOPSIS |
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use base Deliantra::Protocol; # you have to subclass |
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=head1 DESCRIPTION |
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Base class to implement a crossfire client. |
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=over 4 |
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=cut |
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package Deliantra::Protocol; |
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BGIN { die "FATAL: Deliantra::Protocol needs to be rewritten to be properly subclassed form Deliantra::Protocol::Base" } |
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our $VERSION = '0.1'; |
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use common::sense; |
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sub feed_map1a { |
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my ($self, $data) = @_; |
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my $map = $self->{map} ||= []; |
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my ($dx, $dy) = delete @$self{qw(delayed_scroll_x delayed_scroll_y)}; |
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if ($dx || $dy) { |
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my ($mx, $my, $mw, $mh) = @$self{qw(mapx mapy mapw maph)}; |
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{ |
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my @darkness; |
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if ($dx > 0) { |
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push @darkness, [$mx, $my, $dx - 1, $mh]; |
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} elsif ($dx < 0) { |
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push @darkness, [$mx + $mw + $dx + 1, $my, 1 - $dx, $mh]; |
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} |
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if ($dy > 0) { |
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push @darkness, [$mx, $my, $mw, $dy - 1]; |
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} elsif ($dy < 0) { |
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push @darkness, [$mx, $my + $mh + $dy + 1, $mw, 1 - $dy]; |
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} |
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for (@darkness) { |
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my ($x0, $y0, $w, $h) = @$_; |
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for my $x ($x0 .. $x0 + $w) { |
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for my $y ($y0 .. $y0 + $h) { |
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my $cell = $map->[$x][$y] |
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or next; |
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$cell->[0] = -1; |
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} |
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} |
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} |
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} |
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# now scroll |
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$self->{mapx} += $dx; |
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$self->{mapy} += $dy; |
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# shift in new space if moving to "negative indices" |
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if ($self->{mapy} < 0) { |
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unshift @$_, (undef) x -$self->{mapy} for @$map; |
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$self->{mapy} = 0; |
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} |
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if ($self->{mapx} < 0) { |
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unshift @$map, (undef) x -$self->{mapx}; |
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$self->{mapx} = 0; |
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} |
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$self->map_scroll ($dx, $dy); |
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} |
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my @dirty; |
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my ($coord, $x, $y, $darkness, $fa, $fb, $fc, $cell); |
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while (length $data) { |
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$coord = unpack "n", substr $data, 0, 2, ""; |
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$x = (($coord >> 10) & 63) + $self->{mapx}; |
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$y = (($coord >> 4) & 63) + $self->{mapy}; |
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$cell = $map->[$x][$y] ||= []; |
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if ($coord & 15) { |
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@$cell = () if $cell->[0] < 0; |
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$cell->[0] = $coord & 8 |
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? unpack "C", substr $data, 0, 1, "" |
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: 255; |
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$cell->[1] = unpack "n", substr $data, 0, 2, "" |
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if $coord & 4; |
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$cell->[2] = unpack "n", substr $data, 0, 2, "" |
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if $coord & 2; |
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$cell->[3] = unpack "n", substr $data, 0, 2, "" |
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if $coord & 1; |
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} else { |
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$cell->[0] = -1; |
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} |
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push @dirty, [$x, $y]; |
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} |
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$self->map_update (\@dirty); |
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} |
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sub feed_newmap { |
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my ($self) = @_; |
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$self->{map} = []; |
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$self->{mapx} = 0; |
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$self->{mapy} = 0; |
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delete $self->{delayed_scroll_x}; |
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delete $self->{delayed_scroll_y}; |
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$self->map_clear; |
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} |
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sub feed_image { |
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my ($self, $data) = @_; |
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$self->SUPER::feed_image ($data); |
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my ($num, $len, $data) = unpack "NNa*", $data; |
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my @dirty; |
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for my $x (0..$self->{mapw} - 1) { |
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for my $y (0..$self->{maph} - 1) { |
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push @dirty, [$x, $y] |
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if grep $_ == $num, @{$self->{map}[$x][$y] || []}; |
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} |
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} |
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$self->map_update (\@dirty); |
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} |
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=back |
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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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=cut |
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