public void Move(IBoardElement boardElement, Direction direction)
{
var pos = _currentPositions[boardElement];
int newX = pos.X;
int newY = pos.Y;
switch (direction)
{
case Direction.North:
newX--;
break;
case Direction.South:
newX++;
break;
case Direction.East:
newY++;
break;
case Direction.West:
newY--;
break;
}
var newPosition = new Point(newX, newY);
// var newPosition = GetNewPosition[direction](pos);
if (!PointInsidePlayArea(newPosition))
{
throw new InvalidMoveException();
}
RemoveElement(boardElement);
AddElement(boardElement, newPosition);
}
public void AddElement(IBoardElement boardElement, Point position)
{
if (!PointInsidePlayArea(position))
{
throw new ArgumentException("Position is not on board", "position");
}
_playArea[position.X, position.Y].Add(boardElement);
_currentPositions[boardElement] = position;
}
public void RemoveElement(IBoardElement boardElement)
{
if (boardElement == null)
{
throw new ArgumentNullException("boardElement");
}
if (!_currentPositions.ContainsKey(boardElement))
{
throw new ArgumentException("Element not on board", "boardElement");
}
var pos = _currentPositions[boardElement];
_playArea[pos.X, pos.Y].Remove(boardElement);
_currentPositions.Remove(boardElement);
}
private void Pickup(Board board, IBoardElement can)
{
board.RemoveElement(can);
}
public Point GetCurrentPosition(IBoardElement element)
{
return(_currentPositions[element]);
}
private void Pickup(Board board, IBoardElement can)
{
board.RemoveElement(can);
}
