public Position GetNextPosition()
{
if (!IsPlaced)
{
return(null);
}
if (!Direction.HasValue)
{
return(null);
}
switch (Direction.Value)
{
case RobotDirection.North:
return(new Position {
X = PositionX.GetValueOrDefault(), Y = PositionY.GetValueOrDefault() + Speed
});
case RobotDirection.East:
return(new Position {
X = PositionX.GetValueOrDefault() + Speed, Y = PositionY.GetValueOrDefault()
});
case RobotDirection.South:
return(new Position {
X = PositionX.GetValueOrDefault(), Y = PositionY.GetValueOrDefault() - Speed
});
case RobotDirection.West:
return(new Position {
X = PositionX.GetValueOrDefault() - Speed, Y = PositionY.GetValueOrDefault()
});
}
return(null);
}
