| 1 |
#! perl |
| 2 |
|
| 3 |
# TODO: skip arena |
| 4 |
# TODO: check for player leaving |
| 5 |
|
| 6 |
# implement a 'follow' command |
| 7 |
# don't follow on damned ground |
| 8 |
|
| 9 |
our $MAX_QUEUE = 5; # the # of positions somebody else can lead |
| 10 |
our %follow; # $followername => [$follower, $target, [$queue]] |
| 11 |
|
| 12 |
sub unfollow($) { |
| 13 |
my $name = shift; |
| 14 |
|
| 15 |
if (my $f = delete $follow{$name}) { |
| 16 |
my ($who, $target, undef) = @$f; |
| 17 |
$who->contr->detach ("follow_aborter"); |
| 18 |
$target->message ("$name no longer follows you."); |
| 19 |
$who->message ("You no longer follow " . $target->name . "."); |
| 20 |
} |
| 21 |
} |
| 22 |
|
| 23 |
cf::player::attachment follow_aborter => |
| 24 |
on_move => sub { |
| 25 |
my ($pl, $dir) = @_; |
| 26 |
unfollow $pl->ob->name; |
| 27 |
}, |
| 28 |
on_login => sub { |
| 29 |
my ($pl, $dir) = @_; |
| 30 |
$pl->detach ("follow_aborter"); |
| 31 |
}, |
| 32 |
; |
| 33 |
|
| 34 |
our $CORO = cf::async { |
| 35 |
$Coro::current->{desc} = "follow handler"; |
| 36 |
|
| 37 |
while () { |
| 38 |
cf::wait_for_tick; |
| 39 |
|
| 40 |
for (values %follow) { |
| 41 |
my ($who, $target, $queue) = @$_; |
| 42 |
|
| 43 |
my ($map, $x, $y) = ($target->map, $target->x, $target->y); |
| 44 |
|
| 45 |
# add new position to queue, if any |
| 46 |
push @$queue, [$map, $x, $y] |
| 47 |
if $map != $queue->[-1][0] |
| 48 |
|| $x != $queue->[-1][1] |
| 49 |
|| $y != $queue->[-1][2]; |
| 50 |
|
| 51 |
# try to move to oldest position |
| 52 |
if (@$queue > $MAX_QUEUE) { |
| 53 |
$who->message ($target->name . " is too far away - you can't follow anymore!"); |
| 54 |
unfollow $target->name; |
| 55 |
} else { |
| 56 |
my ($map, $x, $y) = @{ $queue->[0] }; |
| 57 |
|
| 58 |
$map->load; |
| 59 |
|
| 60 |
if ( |
| 61 |
!$map->valid |
| 62 |
or $map->path !~ /^(\{link\}|\/)/ |
| 63 |
or grep $_->flag (cf::FLAG_IS_FLOOR) && ($_->flag (cf::FLAG_UNIQUE) || $_->type == cf::SHOP_FLOOR), |
| 64 |
$map->at ($x, $y)) |
| 65 |
) { |
| 66 |
$who->message ("You can't follow " . $target->name . " anymore!"); |
| 67 |
unfollow $who->name; |
| 68 |
} elsif (!$who->blocked ($map, $x, $y)) { |
| 69 |
shift @$queue; |
| 70 |
$who->goto ($map, $x, $y); |
| 71 |
} |
| 72 |
} |
| 73 |
} |
| 74 |
|
| 75 |
Coro::schedule unless keys %follow; |
| 76 |
} |
| 77 |
}; |
| 78 |
|
| 79 |
cf::register_command follow => sub { |
| 80 |
my ($who, $args) = @_; |
| 81 |
|
| 82 |
my $name = $who->name; |
| 83 |
|
| 84 |
if ($args ne "" && $name ne $args) { |
| 85 |
if (my $other = cf::player::find_active $args) { |
| 86 |
$other = $other->ob; |
| 87 |
|
| 88 |
if ($other->map == $who->map |
| 89 |
&& abs ($other->x - $who->x) <= 1 |
| 90 |
&& abs ($other->y - $who->y) <= 1 |
| 91 |
) { |
| 92 |
$who->message ("Following player '$args', to stop, type: 'follow"); |
| 93 |
$other->message ("$name is now following your every step..."); |
| 94 |
$follow{$name} = [ |
| 95 |
$who, |
| 96 |
$other, |
| 97 |
[[$other->map, $other->x, $other->y]], |
| 98 |
]; |
| 99 |
$who->contr->attach ("follow_aborter"); |
| 100 |
$CORO->ready; |
| 101 |
} else { |
| 102 |
$who->message ("You must stand directly beside '$args' to follow her/him"); |
| 103 |
delete $follow{$name}; |
| 104 |
} |
| 105 |
} else { |
| 106 |
$who->message ("Cannot follow '$args': no such player"); |
| 107 |
delete $follow{$name}; |
| 108 |
} |
| 109 |
} else { |
| 110 |
$who->message ("follow mode off"); |
| 111 |
delete $follow{$name}; |
| 112 |
} |
| 113 |
}; |
| 114 |
|
| 115 |
sub unregister { |
| 116 |
my ($pl) = @_; |
| 117 |
|
| 118 |
my $name = $pl->ob->name; |
| 119 |
|
| 120 |
unfollow $name; |
| 121 |
|
| 122 |
while (my ($k, $v) = each %follow) { |
| 123 |
unfollow $k |
| 124 |
if $v->[1]->name eq $name; |
| 125 |
} |
| 126 |
} |
| 127 |
|
| 128 |
cf::player->attach ( |
| 129 |
on_death => \&unregister, |
| 130 |
on_logout => \&unregister, |
| 131 |
); |
| 132 |
|
