package HollyGameAI::RNG;

### Random Number God, dice class

sub RNG {
        my $class = shift;

        my $self = { dx => 0 };

        return bless $self, ref($class) || $class;
}

sub set {
        my ($self, $dxx) = @_;
        $self->{dx} = $dxx;
}      

sub rollDX {
        my $self = shift;
        return rand($self->{dx});
}

sub rollD1 {
        my $self = shift;
        return rand(1);
}

sub rollD3 {
        my $self = shift;
        return rand(3);
}

sub rollD6 {
        my $self = shift;
        return rand(6);
}

sub rollD10 {
        my $self = shift;
        return rand(10);
}

sub rollD20 {
        my $self = shift;
        return rand(20);
}

sub rollPreviousDX {
        my $self = shift;
        return rand($self->{dx});
}

sub roll {
        my ($self, $dxx) = @_;

        $self->set($dxx);

        given ($self->{dx}) {
                when ($_ = 0) {
                        return 0;
                }
                when ($_ == 1) {
                        return rollD1;
                }
                when ($_ == 3) {
                        return rollD3;
                }
                when ($_ == 6) {
                        return rollD6;
                }
                when ($_ == 10) {
                        return rollD10;
                }
                when ($_ == 20) {
                        return rollD20;
                }
        }

        return 0;
}