void SwapTileWithOpenSpace(SlidingTile clickedTile)
{
int newOpenTileIndex = clickedTile.Index;
int newTileIndex = _currentOpenTile.Index;
Vector2 newOpenGridPos = GridPositionForTileIndex(newOpenTileIndex);
Vector3 newTileGridPos = GridPositionForTileIndex(newTileIndex);
_gameBoard[(int)newOpenGridPos.x, (int)newOpenGridPos.y] = _currentOpenTile;
_gameBoard[(int)newTileGridPos.x, (int)newTileGridPos.y] = clickedTile;
Vector3 newOpenTilePosition = PositionForTileIndex(newOpenTileIndex);
Vector3 newTilePosition = PositionForTileIndex(newTileIndex);
clickedTile.MoveToPosition(newTileIndex, newTilePosition);
_currentOpenTile.MoveToPosition(newOpenTileIndex, newOpenTilePosition);
}
