/// <summary>
/// Make a specific tile group swallow all its neighboring groups.
/// </summary>
/// <param name="swallowingCard">The tile card which causes the swallowing of the other groups.</param>
/// <param name="swallowingGroup">The group which swallows all its neighboring groups.</param>
private static void SwallowGroups(TileCard swallowingCard, TileGroup swallowingGroup)
{
swallowingCard.Tile.Hotel = swallowingGroup.Hotel;
var neighboringGroups = new List<TileGroup>();
foreach (var neighbor in swallowingCard.Point.Neighbors)
{
if (Board.PointGroupDictionary.ContainsKey(neighbor) &&
!neighboringGroups.Contains(Board.PointGroupDictionary[neighbor]) &&
Board.PointGroupDictionary[neighbor] != swallowingGroup)
{
neighboringGroups.Add(Board.PointGroupDictionary[neighbor]);
}
}
foreach (var group in neighboringGroups)
{
group.Tiles.ForEach(tile => Board.PointGroupDictionary.Remove(tile.Point));
group.Tiles.ForEach(tile => tile.Hotel = swallowingGroup.Hotel);
group.Tiles.ForEach(tile => Board.PointGroupDictionary.Add(tile.Point, swallowingGroup));
swallowingGroup.AddTiles(group.Tiles);
Board.TileGroups.Remove(group);
}
NotifyGroupChanged(swallowingGroup);
}
/// <summary>
/// Puts a new tile on board.
/// </summary>
/// <param name="card">The tile card representing the tile to be put.</param>
private static void PutTile(TileCard card)
{
card.Tile.Occupied = true;
var group = new TileGroup(card.Tile);
// Only for the pre-game putting of tiles where neighboring tiles do not set-up a new hotel.
SwallowGroups(card, group);
}
/// <summary>
/// Setup a new hotel on board.
/// </summary>
/// <param name="card">The card who caused the setup.</param>
/// <param name="involvedHotel">The hotel chosen to be setup.</param>
private static void SetUp(TileCard card, Hotel involvedHotel)
{
card.Tile.Occupied = true;
var group = new TileGroup(card.Tile) { Hotel = involvedHotel };
SwallowGroups(card, group);
}
/// <summary>
/// Raises an event notifying a tile group has changed, so the game logic will be updated.
/// </summary>
/// <param name="changedGroup">The tile group which have been changed.</param>
private static void NotifyGroupChanged(TileGroup changedGroup)
{
if (GroupChanged != null)
GroupChanged(changedGroup, new EventArgs());
}