Mojoliciousでイベント駆動型プログラミングしてみた（その2）

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#!/usr/bin/env perl
use utf8;
use 5.012;
use Encode;

package Human;
use Mojo::Base 'Mojo::EventEmitter';

sub walk {
    my $self = shift;
    $self->emit(message => '歩いている。');
    $self->emit('walk');
    return;
}

sub get_poison {
    my $self = shift;
    $self->emit(message => '毒を受けた！');
    $self->on(walk => sub {
        $self->emit(message => "毒のダメージ！");
    });
}

sub cure_poison {
    my $self = shift;
    $self->emit(message => '毒が治った！');
    $self->unsubscribe('walk');
}

package main;

my $man = Human->new;
$man->on(message => sub {
    say Encode::encode_utf8($_[1]);
});

$man->walk for 1 ..2;
$man->get_poison;
$man->walk for 1 .. 2;
$man->cure_poison;
$man->walk for 1 .. 2;

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#!/usr/bin/env perl
use utf8;
use 5.012;
use Encode;

package Logger;
use Mojo::Base -base;

sub log {
    shift;
    say Encode::encode_utf8(join "\n", @_);
}

package Human;
use Mojo::Base -base;

has is_poison => 0;

sub walk {
    my $self = shift;
    my @results = ('歩いている。');
    if ($self->is_poison) {
        push @results, '毒のダメージ！';
    }
    return @results;
}

sub get_poison {
    shift->is_poison(1);
    return '毒を受けた！';
}

sub cure_poison {
    shift->is_poison(0);
    return '毒が治った！';
}

package main;

my $man = Human->new;
my $logger = Logger->new;

$logger->log($man->walk) for 1 .. 2;
$logger->log($man->get_poison);
$logger->log($man->walk) for 1 .. 2;
$logger->log($man->cure_poison);
$logger->log($man->walk) for 1 .. 2;