override public void beginState(Barrel barrel)
{
barrel.openValve(barrel.supplyValve);
barrel.openValve(barrel.tankValve);
barrel.closeValve(barrel.shotValve);
barrel.readyToShoot = false;
timer.reset();
timer.start();
}
override public void beginState(Barrel barrel)
{
// keep the tank valve open so the piston does not move
barrel.closeValve(barrel.supplyValve);
barrel.openValve(barrel.tankValve);
barrel.closeValve(barrel.shotValve);
barrel.shotRequested = false;
barrel.readyToShoot = true;
timer.reset();
timer.start();
}