public CurrentPosition ExceuteCommand(string command, CurrentPosition position)
{
var currentPosition = position;
foreach (var c in command)
{
switch (c)
{
case 'M':
position = currentPosition;
currentPosition = UpdatePosition("M", position);
break;
case 'L':
position = currentPosition;
currentPosition = IdentifyCommand('L', position);
break;
case 'R':
position = currentPosition;
currentPosition = IdentifyCommand('R', position);
break;
}
}
return(currentPosition);
}
private CurrentPosition IdentifyCommand(char command, CurrentPosition currentPosition)
{
if (command == 'L' && currentPosition.Direction.Equals(Direction.North))
{
currentPosition.Direction = Direction.West;
}
else if (command == 'R' && currentPosition.Direction.Equals(Direction.North))
{
currentPosition.Direction = Direction.East;
}
else if (command == 'L' && currentPosition.Direction.Equals(Direction.South))
{
currentPosition.Direction = Direction.East;
}
else if (command == 'R' && currentPosition.Direction.Equals(Direction.South))
{
currentPosition.Direction = Direction.West;
}
else if (command == 'L' && currentPosition.Direction.Equals(Direction.East))
{
currentPosition.Direction = Direction.North;
}
else if (command == 'R' && currentPosition.Direction.Equals(Direction.East))
{
currentPosition.Direction = Direction.South;
}
else if (command == 'L' && currentPosition.Direction.Equals(Direction.West))
{
currentPosition.Direction = Direction.South;
}
else if (command == 'R' && currentPosition.Direction.Equals(Direction.West))
{
currentPosition.Direction = Direction.North;
}
return(currentPosition);
}
private CurrentPosition UpdatePosition(string command, CurrentPosition position)
{
var currPosition = position;
if (position.Direction.Equals(Direction.North))
{
currPosition = new CurrentPosition(new Points(position.Points.X, position.Points.Y + 1), Direction.North);
}
if (position.Direction.Equals(Direction.South))
{
currPosition = new CurrentPosition(new Points(position.Points.X, position.Points.Y - 1), Direction.South);
}
if (position.Direction.Equals(Direction.East))
{
currPosition = new CurrentPosition(new Points(position.Points.X + 1, position.Points.Y), Direction.East);
}
if (position.Direction.Equals(Direction.West))
{
currPosition = new CurrentPosition(new Points(position.Points.X - 1, position.Points.Y), Direction.West);
}
return(currPosition);
}
