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#! perl |
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|
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# TODO: skip arena |
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# TODO: check for player leaving |
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|
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# implement a 'follow' command |
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# don't follow on damned ground |
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|
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our $MAX_QUEUE = 5; # the # of positions somebody else can lead |
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our %FOLLOW; # $followername => [$follower, $target, [$queue]] |
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our $FOLLOW_HANDLER; |
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|
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sub unfollow($) { |
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my $name = shift; |
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|
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if (my $f = delete $FOLLOW{$name}) { |
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my ($who, $target, undef) = @$f; |
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$who->contr->detach ("follow_aborter"); |
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$target->message ("$name no longer follows you."); |
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$who->message ("You no longer follow " . $target->name . "."); |
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} |
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} |
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|
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cf::player::attachment follow_aborter => |
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on_move => sub { |
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my ($pl, $dir) = @_; |
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unfollow $pl->ob->name; |
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}, |
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on_login => sub { |
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my ($pl, $dir) = @_; |
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$pl->detach ("follow_aborter"); |
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}, |
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; |
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|
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sub start_follow_handler { |
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$FOLLOW_HANDLER = cf::async_ext { |
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$Coro::current->{desc} = "follow handler"; |
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|
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while () { |
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$cf::WAIT_FOR_TICK->wait; |
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|
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for (values %FOLLOW) { |
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my ($who, $target, $queue) = @$_; |
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|
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$target->active |
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or next; |
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|
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my ($map, $x, $y) = ($target->map, $target->x, $target->y); |
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|
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# add new position to queue, if any |
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push @$queue, [$map, $x, $y] |
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if !@$queue |
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|| $map != $queue->[-1][0] |
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|| $x != $queue->[-1][1] |
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|| $y != $queue->[-1][2]; |
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|
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# try to move to oldest position |
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if (@$queue > $MAX_QUEUE) { |
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$who->message ($target->name . " is too far away - you can't follow anymore!"); |
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unfollow $who->name; |
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} elsif (@$queue) { |
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my ($map, $x, $y) = @{ $queue->[0] }; |
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|
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$map->load; |
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|
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if ( |
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!$map->valid |
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or $map->path !~ /^(\{link\}|\/)/ |
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or grep $_->flag (cf::FLAG_IS_FLOOR) && ($_->flag (cf::FLAG_UNIQUE) || $_->type == cf::SHOP_FLOOR), |
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$map->at ($x, $y) |
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) { |
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$who->message ("You can't follow " . $target->name . " anymore!"); |
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unfollow $who->name; |
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} elsif (!$who->blocked ($map, $x, $y)) { |
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shift @$queue; |
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$who->goto ($map, $x, $y); |
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} |
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} |
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} |
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|
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Coro::schedule unless keys %FOLLOW; |
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} |
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}; |
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} |
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|
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start_follow_handler; |
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|
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cf::register_command follow => sub { |
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my ($who, $args) = @_; |
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|
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my $name = $who->name; |
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|
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if ($args ne "" && $name ne $args) { |
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if (my $other = cf::player::find_active $args) { |
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$other = $other->ob; |
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|
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if ($other->map == $who->map |
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&& abs ($other->x - $who->x) <= 1 |
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&& abs ($other->y - $who->y) <= 1 |
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) { |
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$who->message ("Following player '$args', to stop, type: 'follow"); |
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$other->message ("$name is now following your every step..."); |
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$FOLLOW{$name} = [ |
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$who, |
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$other, |
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[[$other->map, $other->x, $other->y]], |
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]; |
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$who->contr->attach ("follow_aborter"); |
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$FOLLOW_HANDLER->ready; |
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} else { |
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$who->message ("You must stand directly beside '$args' to follow her/him"); |
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delete $FOLLOW{$name}; |
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} |
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} else { |
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$who->message ("Cannot follow '$args': no such player"); |
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delete $FOLLOW{$name}; |
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} |
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} else { |
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$who->message ("follow mode off"); |
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delete $FOLLOW{$name}; |
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} |
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}; |
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|
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sub unregister { |
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my ($pl) = @_; |
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|
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my $name = $pl->ob->name; |
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|
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unfollow $name; |
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|
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while (my ($k, $v) = each %FOLLOW) { |
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unfollow $k |
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if $v->[1]->name eq $name; |
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} |
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} |
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|
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cf::player->attach ( |
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on_death => \&unregister, |
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on_logout => \&unregister, |
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); |
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|
