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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 | sub teleport { |
9 | our $MAX_QUEUE = 5; # the # of positions somebody else can lead |
| 10 | my ($pl, $map, $x, $y) = @_; |
10 | our %FOLLOW; # $followername => [$follower, $target, [$queue]] |
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11 | our $FOLLOW_HANDLER; |
| 11 | |
12 | |
| 12 | return if $pl->ob->map->path eq $map |
13 | sub unfollow($) { |
| 13 | && abs ($pl->ob->x - $x) <= 1 |
14 | my $name = shift; |
| 14 | && abs ($pl->ob->y - $y) <= 1; |
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| 15 | |
15 | |
| 16 | my $portal = cf::object::new "exit"; |
16 | if (my $f = delete $FOLLOW{$name}) { |
| 17 | |
17 | my ($who, $target, undef) = @$f; |
| 18 | $portal->slaying ($map); |
18 | $who->contr->detach ("follow_aborter"); |
| 19 | $portal->stats->hp ($x); |
19 | $target->message ("$name no longer follows you."); |
| 20 | $portal->stats->sp ($y); |
20 | $who->message ("You no longer follow " . $target->name . "."); |
| 21 | |
21 | } |
| 22 | $portal->apply ($pl->ob); |
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| 23 | |
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| 24 | $portal->free; |
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| 25 | } |
22 | } |
| 26 | |
23 | |
| 27 | my %follow; |
24 | cf::player::attachment follow_aborter => |
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25 | on_move => sub { |
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26 | my ($pl, $dir) = @_; |
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27 | unfollow $pl->ob->name; |
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28 | }, |
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29 | on_login => sub { |
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30 | my ($pl, $dir) = @_; |
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31 | $pl->detach ("follow_aborter"); |
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32 | }, |
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33 | ; |
| 28 | |
34 | |
| 29 | my $timer = Event->timer (interval => 0.2, parked => 1, data => cf::WF_AUTOCANCEL, cb => sub { |
35 | sub start_follow_handler { |
| 30 | while (my ($name, $v) = each %follow) { |
36 | $FOLLOW_HANDLER = cf::async_ext { |
| 31 | my ($target, $his, $mine) = @$v; |
37 | $Coro::current->{desc} = "follow handler"; |
| 32 | my ($who, $other) = (cf::player::find $name, cf::player::find $target); |
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| 33 | |
38 | |
| 34 | if ($who && $other && $other->ob->map) { |
39 | while () { |
| 35 | my ($map, $x, $y) = ($other->ob->map->path, $other->ob->x, $other->ob->y); |
40 | cf::wait_for_tick; |
| 36 | |
41 | |
| 37 | if ($map ne $his->[0] || $x != $his->[1] || $y != $his->[2]) { |
42 | for (values %FOLLOW) { |
| 38 | @$mine = @$his; |
43 | my ($who, $target, $queue) = @$_; |
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44 | |
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45 | $target->active |
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46 | or next; |
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47 | |
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48 | my ($map, $x, $y) = ($target->map, $target->x, $target->y); |
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49 | |
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50 | # add new position to queue, if any |
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51 | push @$queue, [$map, $x, $y] |
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52 | if $map != $queue->[-1][0] |
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53 | || $x != $queue->[-1][1] |
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54 | || $y != $queue->[-1][2]; |
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55 | |
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56 | # try to move to oldest position |
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57 | if (@$queue > $MAX_QUEUE) { |
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58 | $who->message ($target->name . " is too far away - you can't follow anymore!"); |
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59 | unfollow $target->name; |
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60 | } elsif (@$queue) { |
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61 | my ($map, $x, $y) = @{ $queue->[0] }; |
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62 | |
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63 | $map->load; |
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64 | |
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65 | if ( |
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66 | !$map->valid |
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67 | or $map->path !~ /^(\{link\}|\/)/ |
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68 | or grep $_->flag (cf::FLAG_IS_FLOOR) && ($_->flag (cf::FLAG_UNIQUE) || $_->type == cf::SHOP_FLOOR), |
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69 | $map->at ($x, $y) |
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70 | ) { |
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71 | $who->message ("You can't follow " . $target->name . " anymore!"); |
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72 | unfollow $who->name; |
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73 | } elsif (!$who->blocked ($map, $x, $y)) { |
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74 | shift @$queue; |
| 39 | @$his = ($map, $x, $y); |
75 | $who->goto ($map, $x, $y); |
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76 | } |
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77 | } |
| 40 | } |
78 | } |
| 41 | |
79 | |
| 42 | my $map; |
80 | Coro::schedule unless keys %FOLLOW; |
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81 | } |
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82 | }; |
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83 | } |
| 43 | |
84 | |
| 44 | if ($map = cf::map::find $mine->[0] |
85 | start_follow_handler; |
| 45 | and !grep $_->flag (cf::FLAG_UNIQUE) && $_->flag (cf::FLAG_IS_FLOOR), |
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| 46 | $map->at ($mine->[1], $mine->[2])) { |
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| 47 | teleport $who, @$mine; |
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| 48 | } else { |
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| 49 | delete $follow{$name}; |
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| 50 | $who->ob->message ("You can't follow $target anymore!"); |
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| 51 | } |
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| 52 | } else { |
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| 53 | delete $follow{$name}; |
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| 54 | $who->ob->message ("$target is gone..."); |
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| 55 | } |
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| 56 | } |
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| 57 | |
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| 58 | $_[0]->w->stop unless keys %follow; |
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| 59 | }); |
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| 60 | |
86 | |
| 61 | cf::register_command follow => sub { |
87 | cf::register_command follow => sub { |
| 62 | my ($who, $args) = @_; |
88 | my ($who, $args) = @_; |
| 63 | |
89 | |
| 64 | my $name = $who->name; |
90 | my $name = $who->name; |
| 65 | |
91 | |
| 66 | if ($args ne "" && $name ne $args) { |
92 | if ($args ne "" && $name ne $args) { |
| 67 | if (my $other = cf::player::find $args) { |
93 | if (my $other = cf::player::find_active $args) { |
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94 | $other = $other->ob; |
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95 | |
| 68 | if ($other->ob->map->path eq $who->map->path |
96 | if ($other->map == $who->map |
| 69 | && abs ($other->ob->x - $who->x) <= 1 |
97 | && abs ($other->x - $who->x) <= 1 |
| 70 | && abs ($other->ob->y - $who->y) <= 1) { |
98 | && abs ($other->y - $who->y) <= 1 |
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99 | ) { |
| 71 | $who->message ("Following player '$args', to stop, type: 'follow"); |
100 | $who->message ("Following player '$args', to stop, type: 'follow"); |
| 72 | $other->ob->message ("$name is now following your every step..."); |
101 | $other->message ("$name is now following your every step..."); |
| 73 | $follow{$name} = [ |
102 | $FOLLOW{$name} = [ |
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103 | $who, |
| 74 | $args, |
104 | $other, |
| 75 | [$other->ob->map->path, $other->ob->x, $other->ob->y], |
105 | [[$other->map, $other->x, $other->y]], |
| 76 | [$who->map->path, $who->x, $who->y], |
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| 77 | ]; |
106 | ]; |
| 78 | $timer->start; |
107 | $who->contr->attach ("follow_aborter"); |
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108 | $FOLLOW_HANDLER->ready; |
| 79 | } else { |
109 | } else { |
| 80 | $who->message ("You must stand directly beside '$args' to follow her/him"); |
110 | $who->message ("You must stand directly beside '$args' to follow her/him"); |
| 81 | delete $follow{$name}; |
111 | delete $FOLLOW{$name}; |
| 82 | } |
112 | } |
| 83 | } else { |
113 | } else { |
| 84 | $who->message ("Cannot follow '$args': no such player"); |
114 | $who->message ("Cannot follow '$args': no such player"); |
| 85 | delete $follow{$name}; |
115 | delete $FOLLOW{$name}; |
| 86 | } |
116 | } |
| 87 | } else { |
117 | } else { |
| 88 | $who->message ("follow mode off"); |
118 | $who->message ("follow mode off"); |
| 89 | delete $follow{$name}; |
119 | delete $FOLLOW{$name}; |
| 90 | } |
120 | } |
| 91 | }; |
121 | }; |
| 92 | |
122 | |
| 93 | cf::attach_to_players |
123 | sub unregister { |
| 94 | on_death => sub { |
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| 95 | my ($pl) = @_; |
124 | my ($pl) = @_; |
| 96 | |
125 | |
| 97 | my $name = $pl->ob->name; |
126 | my $name = $pl->ob->name; |
| 98 | |
127 | |
| 99 | delete $follow{$name}; |
128 | unfollow $name; |
| 100 | |
129 | |
| 101 | while (my ($k, $v) = each %follow) { |
130 | while (my ($k, $v) = each %FOLLOW) { |
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131 | unfollow $k |
| 102 | if ($v->[0] eq $name) { |
132 | if $v->[1]->name eq $name; |
| 103 | delete $follow{$k}; |
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| 104 | } |
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| 105 | } |
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| 106 | }, |
133 | } |
| 107 | ; |
134 | } |
| 108 | |
135 | |
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136 | cf::player->attach ( |
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137 | on_death => \&unregister, |
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138 | on_logout => \&unregister, |
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139 | ); |
| 109 | |
140 | |
| 110 | |
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| 111 | |
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