private void GuardArea(ICommandableRover rover, int x, int y)
{
if (x > _xUpperBound || y > _xUpperBound)
{
throw new ApplicationException($"Attempt to move at position [{x},{y},{rover.CurrenctDirection}], {rover.Name} cannot move outside platue area {_xUpperBound}x{_yUpperBound}");
}
if (x < 0 || y < 0)
{
throw new ApplicationException($"Attempt to move at position [{x},{y},{rover.CurrenctDirection}], {rover.Name} cannot must stay within platue area {_xUpperBound}x{_yUpperBound}");
}
if (_surfaceArea[x, y] != null)
{
throw new ApplicationException($"{_surfaceArea[x, y].Name} rover is stationed at [{x},{y},{rover.CurrenctDirection}]. Take a different route!");
}
}
public IRoverMovementHandler GetHandler(ICommandableRover commandableRover)
{
if (commandableRover.CurrenctDirection == RoverDirections.North)
{
return(new NorthBoundRoverHandler(commandableRover));
}
else if (commandableRover.CurrenctDirection == RoverDirections.South)
{
return(new SouthBoundRoverHandler(commandableRover));
}
else if (commandableRover.CurrenctDirection == RoverDirections.East)
{
return(new EastBoundRoverHandler(commandableRover));
}
else
{
return(new WestBoundRoverHandler(commandableRover));
}
}
public SouthBoundRoverHandler(ICommandableRover commandableRover)
{
_commandableRover = commandableRover;
}
public WestBoundRoverHandler(ICommandableRover commandableRover)
{
_commandableRover = commandableRover;
}
/// <summary>
/// Positions rover at given x, y coordinate of the grid
/// </summary>
/// <param name="rover">Rover that you want to position</param>
/// <param name="x">X coordinate of the grid</param>
/// <param name="y">Y coordinate of the grid</param>
public void PositionRover(ICommandableRover rover, int x, int y)
{
GuardArea(rover, x, y);
_surfaceArea[x, y] = rover;
}
