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4 | # TODO: check for player leaving |
4 | # TODO: check for player leaving |
5 | |
5 | |
6 | # implement a 'follow' command |
6 | # implement a 'follow' command |
7 | # don't follow on damned ground |
7 | # don't follow on damned ground |
8 | |
8 | |
9 | my %follow; |
9 | our $MAX_QUEUE = 5; # the # of positions somebody else can lead |
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10 | our %follow; # $followername => [$follower, $target, [$queue]] |
10 | |
11 | |
11 | my $timer = Event->timer (interval => 0.2, parked => 1, data => cf::WF_AUTOCANCEL, cb => sub { |
12 | sub unfollow($) { |
12 | cf::sync_job { |
13 | my $name = shift; |
13 | while (my ($name, $v) = each %follow) { |
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14 | my ($target, $his, $mine) = @$v; |
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15 | my ($who, $other) = (cf::player::find $name, cf::player::find $target); |
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16 | |
14 | |
17 | if ($who && $other && $other->ob->map) { |
15 | if (my $f = delete $follow{$name}) { |
18 | my ($map, $x, $y) = ($other->ob->map->path, $other->ob->x, $other->ob->y); |
16 | my ($who, $target, undef) = @$f; |
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17 | $who->contr->detach ("follow_aborter"); |
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18 | $target->message ("$name no longer follows you."); |
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19 | $who->message ("You no longer follow " . $target->name . "."); |
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20 | } |
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21 | } |
19 | |
22 | |
20 | if ($map ne $his->[0] || $x != $his->[1] || $y != $his->[2]) { |
23 | cf::player::attachment follow_aborter => |
21 | @$mine = @$his; |
24 | on_move => sub { |
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25 | my ($pl, $dir) = @_; |
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26 | unfollow $pl->ob->name; |
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27 | }, |
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28 | on_login => sub { |
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29 | my ($pl, $dir) = @_; |
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30 | $pl->detach ("follow_aborter"); |
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31 | }, |
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32 | ; |
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33 | |
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34 | our $CORO = cf::async { |
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35 | $Coro::current->{desc} = "follow handler"; |
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36 | |
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37 | while () { |
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38 | cf::wait_for_tick; |
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39 | |
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40 | for (values %follow) { |
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41 | my ($who, $target, $queue) = @$_; |
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42 | |
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43 | my ($map, $x, $y) = ($target->map, $target->x, $target->y); |
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44 | |
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45 | # add new position to queue, if any |
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46 | push @$queue, [$map, $x, $y] |
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47 | if $map != $queue->[-1][0] |
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48 | || $x != $queue->[-1][1] |
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49 | || $y != $queue->[-1][2]; |
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50 | |
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51 | # try to move to oldest position |
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52 | if (@$queue > $MAX_QUEUE) { |
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53 | $who->message ($target->name . " is too far away - you can't follow anymore!"); |
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54 | unfollow $target->name; |
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55 | } else { |
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56 | my ($map, $x, $y) = @{ $queue->[0] }; |
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57 | |
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58 | $map->load; |
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59 | |
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60 | if ( |
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61 | $map->path !~ /^(\{link\}|\/)/ |
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62 | or grep $_->flag (cf::FLAG_IS_FLOOR) && ($_->flag (cf::FLAG_UNIQUE) || $_->type == cf::SHOP_FLOOR), |
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63 | $map->at ($x, $y) |
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64 | ) { |
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65 | $who->message ("You can't follow " . $target->name . " anymore!"); |
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66 | unfollow $who->name; |
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67 | } elsif (!$who->blocked ($map, $x, $y)) { |
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68 | shift @$queue; |
22 | @$his = ($map, $x, $y); |
69 | $who->goto ($map, $x, $y); |
23 | } |
70 | } |
24 | |
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25 | my $map; |
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26 | |
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27 | if ($map = cf::map::find $mine->[0] |
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28 | and !grep $_->flag (cf::FLAG_UNIQUE) && $_->flag (cf::FLAG_IS_FLOOR), |
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29 | $map->at ($mine->[1], $mine->[2])) { |
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30 | $who->ob->goto_map (@$mine); |
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31 | } else { |
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32 | delete $follow{$name}; |
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33 | $who->ob->message ("You can't follow $target anymore!"); |
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34 | } |
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35 | } else { |
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36 | delete $follow{$name}; |
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37 | $who->ob->message ("$target is gone..."); |
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38 | } |
71 | } |
39 | } |
72 | } |
40 | }; |
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41 | |
73 | |
42 | $_[0]->w->stop unless keys %follow; |
74 | Coro::schedule unless keys %follow; |
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75 | } |
43 | }); |
76 | }; |
44 | |
77 | |
45 | cf::register_command follow => sub { |
78 | cf::register_command follow => sub { |
46 | my ($who, $args) = @_; |
79 | my ($who, $args) = @_; |
47 | |
80 | |
48 | my $name = $who->name; |
81 | my $name = $who->name; |
49 | |
82 | |
50 | if ($args ne "" && $name ne $args) { |
83 | if ($args ne "" && $name ne $args) { |
51 | if (my $other = cf::player::find $args) { |
84 | if (my $other = cf::player::find_active $args) { |
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85 | $other = $other->ob; |
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86 | |
52 | if ($other->ob->map eq $who->map |
87 | if ($other->map == $who->map |
53 | && abs ($other->ob->x - $who->x) <= 1 |
88 | && abs ($other->x - $who->x) <= 1 |
54 | && abs ($other->ob->y - $who->y) <= 1) { |
89 | && abs ($other->y - $who->y) <= 1 |
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90 | ) { |
55 | $who->message ("Following player '$args', to stop, type: 'follow"); |
91 | $who->message ("Following player '$args', to stop, type: 'follow"); |
56 | $other->ob->message ("$name is now following your every step..."); |
92 | $other->message ("$name is now following your every step..."); |
57 | $follow{$name} = [ |
93 | $follow{$name} = [ |
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94 | $who, |
58 | $args, |
95 | $other, |
59 | [$other->ob->map->path, $other->ob->x, $other->ob->y], |
96 | [[$other->map, $other->x, $other->y]], |
60 | [$who->map->path, $who->x, $who->y], |
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61 | ]; |
97 | ]; |
62 | $timer->start; |
98 | $who->contr->attach ("follow_aborter"); |
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99 | $CORO->ready; |
63 | } else { |
100 | } else { |
64 | $who->message ("You must stand directly beside '$args' to follow her/him"); |
101 | $who->message ("You must stand directly beside '$args' to follow her/him"); |
65 | delete $follow{$name}; |
102 | delete $follow{$name}; |
66 | } |
103 | } |
67 | } else { |
104 | } else { |
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72 | $who->message ("follow mode off"); |
109 | $who->message ("follow mode off"); |
73 | delete $follow{$name}; |
110 | delete $follow{$name}; |
74 | } |
111 | } |
75 | }; |
112 | }; |
76 | |
113 | |
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114 | sub unregister { |
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115 | my ($pl) = @_; |
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116 | |
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117 | my $name = $pl->ob->name; |
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118 | |
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119 | unfollow $name; |
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120 | |
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121 | while (my ($k, $v) = each %follow) { |
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122 | unfollow $k |
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123 | if $v->[1]->name eq $name; |
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124 | } |
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125 | } |
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126 | |
77 | cf::player->attach ( |
127 | cf::player->attach ( |
78 | on_death => sub { |
128 | on_death => \&unregister, |
79 | my ($pl) = @_; |
129 | on_logout => \&unregister, |
80 | |
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81 | my $name = $pl->ob->name; |
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82 | |
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83 | delete $follow{$name}; |
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84 | |
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85 | while (my ($k, $v) = each %follow) { |
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86 | if ($v->[0] eq $name) { |
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87 | delete $follow{$k}; |
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88 | } |
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89 | } |
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90 | }, |
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91 | ); |
130 | ); |
92 | |
131 | |
93 | |
132 | |
94 | |
133 | |
95 | |
134 | |