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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]] |
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11 | our $FOLLOW_HANDLER; |
10 | |
12 | |
11 | my $timer = Event->timer (interval => 0.2, parked => 1, data => cf::WF_AUTOCANCEL, cb => sub { |
13 | sub unfollow($) { |
12 | while (my ($name, $v) = each %follow) { |
14 | my $name = shift; |
13 | my ($target, $his, $mine) = @$v; |
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14 | my ($who, $other) = (cf::player::find_active $name, cf::player::find_active $target); |
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15 | |
15 | |
16 | if ($who && $other && $other->ob->map) { |
16 | if (my $f = delete $FOLLOW{$name}) { |
17 | my ($map, $x, $y) = ($other->ob->map->path, $other->ob->x, $other->ob->y); |
17 | my ($who, $target, undef) = @$f; |
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18 | $who->contr->detach ("follow_aborter"); |
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19 | $target->message ("$name no longer follows you."); |
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20 | $who->message ("You no longer follow " . $target->name . "."); |
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21 | } |
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22 | } |
18 | |
23 | |
19 | if ($map ne $his->[0] || $x != $his->[1] || $y != $his->[2]) { |
24 | cf::player::attachment follow_aborter => |
20 | @$mine = @$his; |
25 | on_move => sub { |
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26 | my ($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 | ; |
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34 | |
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35 | sub start_follow_handler { |
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36 | $FOLLOW_HANDLER = cf::async_ext { |
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37 | $Coro::current->{desc} = "follow handler"; |
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38 | |
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39 | while () { |
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40 | $cf::WAIT_FOR_TICK->wait; |
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41 | |
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42 | for (values %FOLLOW) { |
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43 | my ($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, $y] |
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52 | if !@$queue |
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53 | || $map != $queue->[-1][0] |
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54 | || $x != $queue->[-1][1] |
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55 | || $y != $queue->[-1][2]; |
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56 | |
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57 | # try to move to oldest position |
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58 | if (@$queue > $MAX_QUEUE) { |
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59 | $who->message ($target->name . " is too far away - you can't follow anymore!"); |
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60 | unfollow $who->name; |
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61 | } elsif (@$queue) { |
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62 | my ($map, $x, $y) = @{ $queue->[0] }; |
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63 | |
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64 | $map->load; |
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65 | |
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66 | if ( |
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67 | !$map->valid |
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68 | or $map->path !~ /^(\{link\}|\/)/ |
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69 | or grep $_->flag (cf::FLAG_IS_FLOOR) && ($_->flag (cf::FLAG_UNIQUE) || $_->type == cf::SHOP_FLOOR), |
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70 | $map->at ($x, $y) |
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71 | ) { |
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72 | $who->message ("You can't follow " . $target->name . " anymore!"); |
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73 | unfollow $who->name; |
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74 | } elsif (!$who->blocked ($map, $x, $y)) { |
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75 | shift @$queue; |
21 | @$his = ($map, $x, $y); |
76 | $who->goto ($map, $x, $y); |
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77 | } |
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78 | } |
22 | } |
79 | } |
23 | |
80 | |
24 | my $map; |
81 | Coro::schedule unless keys %FOLLOW; |
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82 | } |
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83 | }; |
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84 | } |
25 | |
85 | |
26 | if ($map = cf::map::find $mine->[0] |
86 | start_follow_handler; |
27 | and $map =~ /^\// # short-gap fix |
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28 | and !grep +($_->flag (cf::FLAG_UNIQUE) || $_->type == cf::SHOP_FLOOR) && $_->flag (cf::FLAG_IS_FLOOR), |
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29 | $map->at ($mine->[1], $mine->[2])) { |
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30 | $who->ob->goto (@$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 | } |
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39 | } |
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40 | |
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41 | $_[0]->w->stop unless keys %follow; |
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42 | }); |
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43 | |
87 | |
44 | cf::register_command follow => sub { |
88 | cf::register_command follow => sub { |
45 | my ($who, $args) = @_; |
89 | my ($who, $args) = @_; |
46 | |
90 | |
47 | my $name = $who->name; |
91 | my $name = $who->name; |
48 | |
92 | |
49 | if ($args ne "" && $name ne $args) { |
93 | if ($args ne "" && $name ne $args) { |
50 | if (my $other = cf::player::find_active $args) { |
94 | if (my $other = cf::player::find_active $args) { |
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95 | $other = $other->ob; |
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96 | |
51 | if ($other->ob->map == $who->map |
97 | if ($other->map == $who->map |
52 | && abs ($other->ob->x - $who->x) <= 1 |
98 | && abs ($other->x - $who->x) <= 1 |
53 | && abs ($other->ob->y - $who->y) <= 1) { |
99 | && abs ($other->y - $who->y) <= 1 |
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100 | ) { |
54 | $who->message ("Following player '$args', to stop, type: 'follow"); |
101 | $who->message ("Following player '$args', to stop, type: 'follow"); |
55 | $other->ob->message ("$name is now following your every step..."); |
102 | $other->message ("$name is now following your every step..."); |
56 | $follow{$name} = [ |
103 | $FOLLOW{$name} = [ |
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104 | $who, |
57 | $args, |
105 | $other, |
58 | [$other->ob->map->path, $other->ob->x, $other->ob->y], |
106 | [[$other->map, $other->x, $other->y]], |
59 | [$who->map->path, $who->x, $who->y], |
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60 | ]; |
107 | ]; |
61 | $timer->start; |
108 | $who->contr->attach ("follow_aborter"); |
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109 | $FOLLOW_HANDLER->ready; |
62 | } else { |
110 | } else { |
63 | $who->message ("You must stand directly beside '$args' to follow her/him"); |
111 | $who->message ("You must stand directly beside '$args' to follow her/him"); |
64 | delete $follow{$name}; |
112 | delete $FOLLOW{$name}; |
65 | } |
113 | } |
66 | } else { |
114 | } else { |
67 | $who->message ("Cannot follow '$args': no such player"); |
115 | $who->message ("Cannot follow '$args': no such player"); |
68 | delete $follow{$name}; |
116 | delete $FOLLOW{$name}; |
69 | } |
117 | } |
70 | } else { |
118 | } else { |
71 | $who->message ("follow mode off"); |
119 | $who->message ("follow mode off"); |
72 | delete $follow{$name}; |
120 | delete $FOLLOW{$name}; |
73 | } |
121 | } |
74 | }; |
122 | }; |
75 | |
123 | |
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124 | sub unregister { |
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125 | my ($pl) = @_; |
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126 | |
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127 | my $name = $pl->ob->name; |
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128 | |
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129 | unfollow $name; |
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130 | |
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131 | while (my ($k, $v) = each %FOLLOW) { |
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132 | unfollow $k |
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133 | if $v->[1]->name eq $name; |
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134 | } |
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135 | } |
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136 | |
76 | cf::player->attach ( |
137 | cf::player->attach ( |
77 | on_death => sub { |
138 | on_death => \&unregister, |
78 | my ($pl) = @_; |
139 | on_logout => \&unregister, |
79 | |
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80 | my $name = $pl->ob->name; |
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81 | |
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82 | delete $follow{$name}; |
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83 | |
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84 | while (my ($k, $v) = each %follow) { |
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85 | if ($v->[0] eq $name) { |
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86 | delete $follow{$k}; |
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87 | } |
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88 | } |
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89 | }, |
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90 | ); |
140 | ); |
91 | |
141 | |
92 | |
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93 | |
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94 | |
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