/// <summary>
///
/// </summary>
/// <param name="state"></param>
/// <returns></returns>
public object onOutsie(CarState.Outside state)
{
CarState.Inside s = calcReturnPoint(state);
if (s == null)
{
// all the usable RRs are completely removed.
// that means this train is fully outside the world.
// so it's OK to remain static.
return(state);
}
return(new CarState.Outside(
s.location - s.direction, s.direction.opposite,
OUTSIDE_COUNTER_INITIAL_VALUE - state.timeLeft));
}
/// <summary>
///
/// </summary>
/// <param name="state"></param>
/// <returns></returns>
public object onOutsie(CarState.Outside state)
{
if (state.timeLeft != 0)
{
return(new CarState.Outside(state.location, state.direction, state.timeLeft - 1));
}
// time to get back to the world.
CarState s = calcReturnPoint(state);
if (s != null)
{
return(s);
}
// there's no coming back. try again later
return(new CarState.Outside(state.location, state.direction, 10));
}
/// <summary>
/// Determines where the train should re-appear into the world.
/// </summary>
/// <param name="state"></param>
/// <returns></returns>
private static CarState.Inside calcReturnPoint(CarState.Outside state)
{
// where do we go back?
// for now, go back to where it comes from.
int idx = state.direction.isSharp ? 0 : 1;
for (int i = 0; i < 5; i++)
{
// compute the location
Location newLoc = state.location + returnPointMatrixes[idx, i] * ((Distance)state.direction);
// see if there's rail road
if (isConnected(newLoc, state.direction.opposite))
{
// OK
return(new CarState.Inside(newLoc, state.direction.opposite));
}
}
return(null); // non found
}
public object onOutsie(CarState.Outside state)
{
return(false);
}
