my $aura = JumpShadow::Aura->new(
    name    => 'Gravity Well',
    penalty => 20
);

my $nautilus = JumpShadow::Piece->new(
    name            => 'Nautilus',
    energy          => 100,
    movement_cost   => 10,
    range           => 2,
    location        => $locations[0]
);

my $cruiser = JumpShadow::Piece->new(
    name            => 'Interdictor Cruiser',
    energy          => 20,
    movement_cost   => 10,
    range           => 5,
    aura            => $aura,
    location        => $locations[1]
);

$nautilus->move($cruiser->location);