gistfile1.go

type Boat struct {
        Vehicle
}

func(b *Boat) Accelerate(delta uint) {
        b.Vehicle.speed += int(delta)
}

func(b *Boat) Brake(delta uint) {
        b.Vehicle.speed -= int(delta)
}

func NewBoat() Drivable {
        b := new(Boat)
        b.Vehicle.speed = 0
        return b
}