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| #!/usr/bin/env perl
use v5.36;
package Command {
use Moo::Role;
requires 'execute';
has actor => (
is => 'ro',
required => 1,
);
has target => (
is => 'ro',
required => 0,
);
}
package Character {
use Moo;
has name => (
is => 'ro',
required => 1,
);
has hp => (
is => 'rw',
default => 100,
);
has max_hp => (
is => 'ro',
default => 100,
);
has attack_power => (
is => 'ro',
default => 10,
);
has is_defending => (
is => 'rw',
default => 0,
);
has ai_strategy => (
is => 'rw',
default => sub { undef },
);
sub is_alive($self) {
return $self->hp > 0;
}
sub take_damage($self, $damage) {
my $actual_damage = $self->is_defending ? int($damage / 2) : $damage;
my $new_hp = $self->hp - $actual_damage;
$self->hp($new_hp < 0 ? 0 : $new_hp);
$self->is_defending(0);
return $actual_damage;
}
sub decide_action($self, $target) {
die "No AI strategy set" unless $self->ai_strategy;
return $self->ai_strategy->decide_action($self, $target);
}
}
package AttackCommand {
use Moo;
with 'Command';
sub execute($self) {
my $actor = $self->actor;
my $target = $self->target;
my $damage = $actor->attack_power;
my $actual = $target->take_damage($damage);
my $msg = $actor->name . "の攻撃！ " . $target->name . "に " . $actual . " のダメージ！";
$msg .= "（防御で軽減）" if $actual < $damage;
say $msg;
}
}
package DefendCommand {
use Moo;
with 'Command';
sub execute($self) {
my $actor = $self->actor;
$actor->is_defending(1);
say $actor->name . "は防御の構えをとった！";
}
}
package ItemCommand {
use Moo;
with 'Command';
has item_name => (
is => 'ro',
default => 'ポーション',
);
has heal_amount => (
is => 'ro',
default => 30,
);
sub execute($self) {
my $actor = $self->actor;
my $max_hp = $actor->max_hp;
my $new_hp = $actor->hp + $self->heal_amount;
$actor->hp($new_hp > $max_hp ? $max_hp : $new_hp);
say $actor->name . "は" . $self->item_name . "を使った！ HPが " . $self->heal_amount . " 回復！";
}
}
package AIStrategy {
use Moo::Role;
requires 'decide_action';
}
package AggressiveAI {
use Moo;
with 'AIStrategy';
sub decide_action($self, $actor, $target) {
return AttackCommand->new(
actor => $actor,
target => $target,
);
}
}
package DefensiveAI {
use Moo;
with 'AIStrategy';
sub decide_action($self, $actor, $target) {
if ($actor->hp <= $actor->max_hp / 2) {
return ItemCommand->new(
actor => $actor,
item_name => 'ポーション',
heal_amount => 20,
);
}
return AttackCommand->new(
actor => $actor,
target => $target,
);
}
}
package RandomAI {
use Moo;
with 'AIStrategy';
sub decide_action($self, $actor, $target) {
my @actions = (
sub { AttackCommand->new(actor => $actor, target => $target) },
sub { DefendCommand->new(actor => $actor) },
sub { ItemCommand->new(actor => $actor, item_name => 'ポーション', heal_amount => 10) },
);
my $chosen = $actions[int(rand(@actions))];
return $chosen->();
}
}
# デモ: 各AIの動作確認
say "=== AI戦略デモ ===";
say "";
my $hero = Character->new(
name => '勇者',
hp => 100,
max_hp => 100,
attack_power => 15,
);
# 攻撃的AI
say "【攻撃的AI】";
my $goblin = Character->new(
name => 'ゴブリン',
hp => 50,
max_hp => 50,
attack_power => 8,
ai_strategy => AggressiveAI->new(),
);
$goblin->decide_action($hero)->execute();
say "";
# 防御的AI（HPが半分以下）
say "【防御的AI（HP低下時）】";
my $orc = Character->new(
name => 'オーク',
hp => 20, # 半分以下
max_hp => 50,
attack_power => 12,
ai_strategy => DefensiveAI->new(),
);
$orc->decide_action($hero)->execute();
say "";
# ランダムAI
say "【ランダムAI（3回実行）】";
my $slime = Character->new(
name => 'スライム',
hp => 30,
max_hp => 30,
attack_power => 5,
ai_strategy => RandomAI->new(),
);
for (1..3) {
$slime->decide_action($hero)->execute();
}
|
