private Tuple <int, int> GetPotentialPosition(ToyRobot toyRobot)
{
Tuple <int, int, FacesEnum> currentPosition = toyRobot.GetCurrentPosition();
switch (currentPosition.Item3)
{
case FacesEnum.NORTH:
return(Tuple.Create(currentPosition.Item1, currentPosition.Item2 + unitsToMove));
case FacesEnum.SOUTH:
return(Tuple.Create(currentPosition.Item1, currentPosition.Item2 - unitsToMove));
case FacesEnum.WEST:
return(Tuple.Create(currentPosition.Item1 - unitsToMove, currentPosition.Item2));
case FacesEnum.EAST:
return(Tuple.Create(currentPosition.Item1 + unitsToMove, currentPosition.Item2));
default:
throw new InvalidToyRobotFaceException();
}
}
public void PlaceRobotInMap()
{
/*
* Should test each of the cases where a robot can be placed in a map
* 1. Test initial state
* 2. Out of bounds
* 3. Between (0,0) and (4,4)
*/
//1
Assert.Throws <ToyRobotHasNotBeenPlacedException>(() => toyRobot.GetCurrentPosition());
Assert.IsFalse(toyRobot.HasBeenPlaced());
//2
var args = "-1,0,WEST";
PlaceCommand placeCommand = new PlaceCommand(map, args);
Assert.Throws <InvalidPlaceCommandException>(() => toyRobot.Execute(placeCommand));
//2.1
args = "2,5,WEST";
placeCommand = new PlaceCommand(map, args);
Assert.Throws <InvalidPlaceCommandException>(() => toyRobot.Execute(placeCommand));
//3
args = "0,0,NORTH";
placeCommand = new PlaceCommand(map, args);
toyRobot.Execute(placeCommand);
//3.1
args = "3,4,NORTH";
placeCommand = new PlaceCommand(map, args);
toyRobot.Execute(placeCommand);
}
private FacesEnum GetPotentialFace(ToyRobot toyRobot)
{
Tuple <int, int, FacesEnum> currentPosition = toyRobot.GetCurrentPosition();
return(Faces.TurnLeft(currentPosition.Item3));
}
void ICommand.Execute(ToyRobot toyRobot)
{
Tuple <int, int, FacesEnum> position = toyRobot.GetCurrentPosition();
Console.WriteLine(position.Item1 + "," + position.Item2 + "," + position.Item3);
}