public static IEnumerable <MoveCoordinate> ConvertCommandsToMoveCoordinates(string commands)
{
var coordinates = new List <MoveCoordinate>();
int count = 0;
while (count < commands.Length)
{
string posStringToMove = string.Empty;
char rotationLetter = '\0';
if (char.IsLetter(commands[count]))
{
rotationLetter = commands[count];
count++;
}
while (char.IsNumber(commands[count]))
{
posStringToMove = posStringToMove + commands[count];
count++;
if (count >= commands.Length || char.IsLetter(commands[count]))
{
break;
}
}
var posIntToMove = int.Parse(posStringToMove);
var rotation = rotationLetter == 'R' ? Rotation.Right : Rotation.Left;
var moveCoordinate = new MoveCoordinate
{
Rotation = rotation,
PositionToMove = posIntToMove
};
coordinates.Add(moveCoordinate);
}
return(coordinates);
}
private bool UpdateNextGridLocation(MoveCoordinate moveCoordinate)
{
if (moveCoordinate == null)
{
throw new ArgumentNullException(nameof(moveCoordinate));
}
var success = false;
GridLocation.Direction = moveCoordinate.Rotation == Rotation.Right
? _directionsRight[GridLocation.Direction]
: _directionsLeft[GridLocation.Direction];
switch (GridLocation.Direction)
{
case Direction.N:
MoveNorth(moveCoordinate.PositionToMove);
success = true;
break;
case Direction.E:
MoveEast(moveCoordinate.PositionToMove);
success = true;
break;
case Direction.S:
MoveSouth(moveCoordinate.PositionToMove);
success = true;
break;
case Direction.W:
MoveWest(moveCoordinate.PositionToMove);
success = true;
break;
default:
success = false;
break;
}
return(success);
}
