public Position HandleCommand(PlutoCommand command)
{
switch (command)
{
case PlutoCommand.L:
return(new Position(X, Y, Utils.DecrementOrientation(O)));
case PlutoCommand.R:
return(new Position(X, Y, Utils.IncrementOrientation(O)));
default:
{
int step = command == PlutoCommand.F ? 1 : -1;
switch (O)
{
case Orientation.N:
return(new Position(X, Y + step, O));
case Orientation.E:
return(new Position(X + step, Y, O));
case Orientation.S:
return(new Position(X, Y - step, O));
case Orientation.W:
return(new Position(X - step, Y, O));
default:
return(null);
}
}
}
}
public MovementReport ProcessCommand(PlutoCommand command)
{
Position proposed = this.GetPosition().HandleCommand(command);
proposed = _planet.Wrap(proposed);
List <PlutoObject> obstructions = _planet.ObjectsAt(proposed);
if (obstructions is null || 0 == obstructions.Count ||
(1 == obstructions.Count && object.ReferenceEquals(obstructions[0], this)))
{
this._position = proposed;
return(new MovementReport(true, null));
}
