sae201_qwirkle/Qwirkle/QwirkleClassLibrary/Games/Game.cs

using System.Collections.ObjectModel;
using System.Security.Cryptography;
using System.Runtime.Serialization;
using QwirkleClassLibrary.Tiles;
using QwirkleClassLibrary.Boards;
using QwirkleClassLibrary.Events;
using QwirkleClassLibrary.Players;
using System.ComponentModel;
using System.Runtime.CompilerServices;
using static System.Formats.Asn1.AsnWriter;

namespace QwirkleClassLibrary.Games
{
    [DataContract]
    public class Game : IPlayer, IRules, INotifyPropertyChanged
    {
        [DataMember] private TileBag? bag = null;

        [DataMember] public bool GameRunning { get; set; }

        [DataMember] private Board board = new(17, 14);

        public bool PlayerSwapping { get; set; }
        public Board Board => board;

        public ReadOnlyCollection<Player> PlayerList => players.AsReadOnly();

        [DataMember] private readonly List<Player> players = [];

        [DataMember] private readonly Dictionary<string, int> scoreBoard = new Dictionary<string, int>();
        public ReadOnlyDictionary<string, int> ScoreBoard => scoreBoard.AsReadOnly();

        [DataMember] private readonly ObservableCollection<KeyValuePair<string, int>> observableScoreBoard = [];

        public ReadOnlyObservableCollection<KeyValuePair<string, int>> ObservableScoreBoard =>
            new(observableScoreBoard);

        [DataMember] private readonly List<Cell> cellUsed = [];

        public ReadOnlyCollection<Cell> CellsUsed => cellUsed.AsReadOnly();

        public event EventHandler<AddPlayerNotifiedEventArgs>? PlayerAddNotified;

        protected virtual void OnPlayerNotified(AddPlayerNotifiedEventArgs args)
            => PlayerAddNotified?.Invoke(this, args);

        public event EventHandler<NextPlayerNotifiedEventArgs>? NextPlayerNotified;

        protected virtual void OnNextPlayer(NextPlayerNotifiedEventArgs args)
            => NextPlayerNotified?.Invoke(this, args);

        public event EventHandler<PlaceTileNotifiedEventArgs>? PlaceTileNotified;

        protected virtual void OnPlaceTile(PlaceTileNotifiedEventArgs args)
            => PlaceTileNotified?.Invoke(this, args);

        public event EventHandler<EndOfGameNotifiedEventArgs>? EndOfGameNotified;

        protected virtual void OnEndOfGame(EndOfGameNotifiedEventArgs args)
            => EndOfGameNotified?.Invoke(this, args);

        public event EventHandler<SwapTilesNotifiedEventArgs>? SwapTilesNotified;


        public event PropertyChangedEventHandler? PropertyChanged;

        protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        protected virtual void OnSwapTiles(SwapTilesNotifiedEventArgs args)
            => SwapTilesNotified?.Invoke(this, args);

        /// <summary>
        /// Adds a player in the game if the game is not running, if the name is correct, if the game is not full and if the name is not already taken.
        /// </summary>
        /// <param name="playersTag"></param>
        /// <returns>boolean to check it</returns>
        public bool AddPlayerInGame(List<string> playersTag)
        {
            if (GameRunning)
            {
                OnPlayerNotified(new AddPlayerNotifiedEventArgs("ERROR : The game is running."));
                return false;
            }

            for (int i = playersTag.Count - 1; i >= 0; i--)
            {
                if (string.IsNullOrWhiteSpace(playersTag[i]))
                {
                    playersTag.RemoveAt(i);
                }
            }

            if (playersTag.Count <= 1 || playersTag.Count > 4)
            {
                playersTag.Clear();
                OnPlayerNotified(new AddPlayerNotifiedEventArgs(
                    "ERROR : It takes a minimum of 2 players and a maximum of 4 players to start a game."));
                return false;
            }

            for (int i = playersTag.Count - 1; i >= 0; i--)
            {
                if (!CheckPlayerTag(playersTag, i))
                {
                    playersTag.RemoveAt(i);
                    return false;
                }
            }

            foreach (var tag in playersTag)
            {
                Player pl = CreatePlayer(tag);
                players.Add(pl);
                SetScoreBoard(pl.NameTag, 0);
            }

            OnPlayerNotified(new AddPlayerNotifiedEventArgs("Players were correctly added."));
            return true;
        }

        public bool CheckPlayerTag(List<string> playersTag, int pos)
        {
            if (string.IsNullOrWhiteSpace(playersTag[pos]))
            {
                OnPlayerNotified(new AddPlayerNotifiedEventArgs("ERROR with " + (pos + 1) +
                                                                " entry : The name is null or white space."));
                return false;
            }

            for (int i = 0; i < playersTag.Count; i++)
            {
                if (i == pos)
                {
                    continue;
                }

                if (playersTag[i] == playersTag[pos])
                {
                    OnPlayerNotified(
                        new AddPlayerNotifiedEventArgs("ERROR with " + (pos + 1) + " entry : Name alreay taken"));
                    return false;
                }
            }

            return true;
        }

        /// <summary>
        /// Creates a player with a name
        /// </summary>
        /// <param name="playerTag"></param>
        /// <returns>Player</returns>
        public Player CreatePlayer(string playerTag)
        {
            var player = new Player(playerTag);

            return player;
        }

        /// <summary>
        /// Returns the Board of the game
        /// </summary>
        /// <returns>Board</returns>
        public Board GetBoard()
        {
            return board;
        }

        /// <summary>
        /// Returns the tile bag of the game
        /// </summary>
        /// <returns></returns>
        public TileBag? GetTileBag()
        {
            return bag;
        }

        /// <summary>
        /// Creates a Board with a number of columns and rows
        /// </summary>
        /// <returns>Board</returns>
        public Board CreateBoard()
        {
            board = new Board(17, 14);
            return board;
        }

        /// <summary>
        /// Creates a bag of tiles with a number of sets of 36 tiles
        /// </summary>
        /// <param name="nbSet"></param>
        /// <returns>TileBag</returns>
        public TileBag CreateTileBag(int nbSet)
        {
            bag = new TileBag(nbSet);
            return bag;
        }

        /// <summary>
        /// Starts the game if there are at least 2 players and at most 4 players
        /// </summary>
        public void StartGame()
        {
            if (players.Count < 2 || players.Count >= 5) return;
            board = CreateBoard();
            bag = CreateTileBag(3);
            GameRunning = true;
        }

        /// <summary>
        /// Adds a cell to the list of cells used by the player in his turn if the cell is not null
        /// </summary>
        /// <param name="c"></param>
        public void AddCellUsed(Cell? c)
        {
            if (c != null) cellUsed.Add(c);
        }

        /// <summary>
        /// Empty the list of cells used by the player at the end of his turn
        /// </summary>
        public void EmptyCellUsed()
        {
            cellUsed.Clear();
        }

        /// <summary>
        /// Gets the player who is currently playing
        /// </summary>
        /// <returns>Player</returns>
        /// <exception cref="ArgumentException"></exception>
        public Player GetPlayingPlayer()
        {
            if (GetPlayingPlayerPosition() == -1)
            {
                throw new ArgumentException("No player currently playing !");
            }

            return players[GetPlayingPlayerPosition()];
        }

        /// <summary>
        /// Gets the position of the player who is currently playing
        /// </summary>
        /// <returns>int</returns>
        public int GetPlayingPlayerPosition()
        {
            for (int i = 0; i < players.Count; i++)
            {
                if (players[i].IsPlaying)
                {
                    return i;
                }
            }

            return -1;
        }

        /// <summary>
        /// Returns the tile of the player who is currently playing at the position postile
        /// </summary>
        /// <param name="postile"></param>
        /// <returns>Tile</returns>
        public Tile TileOfPlayerWithPos(int postile)
        {
            return players[GetPlayingPlayerPosition()].Tiles[postile];
        }

        /// <summary>
        /// Gives random picked tiles to the players at the beginning of the game
        /// </summary>
        public void GiveTilesToPlayers()
        {
            foreach (var p in players)
            {
                for (int j = 0; j < 6; j++)
                {
                    if (bag != null && p.Tiles.Count < 6)
                    {
                        int val = RandomNumberGenerator.GetInt32(0, bag.TilesBag!.Count);

                        p.AddTileToPlayer(bag.TilesBag[val]);
                        bag.RemoveTileInBag(bag.TilesBag[val]);
                    }
                }
            }
        }

        /// <summary>
        /// Sets the first player of the game at the beginning of the game
        /// </summary>
        /// <returns>string</returns>
        /// <exception cref="ArgumentException"></exception>
        public string SetFirstPlayer(ReadOnlyCollection<Player> playingPlayers)
        {
            if (!GameRunning) throw new ArgumentException("Game is not running");

            Player? startingPlayer = null;
            int maxGroupSize = 0;

            foreach (var player in players)
            {
                var colorGroups = player.Tiles.GroupBy(t => t.GetColor).Select(g => g.Count());
                var shapeGroups = player.Tiles.GroupBy(t => t.GetShape).Select(g => g.Count());

                int playerMaxGroupSize = Math.Max(colorGroups.Max(), shapeGroups.Max());

                if (playerMaxGroupSize > maxGroupSize)
                {
                    maxGroupSize = playerMaxGroupSize;
                    startingPlayer = player;
                }
            }

            startingPlayer!.IsPlaying = true;
            OnNextPlayer(new NextPlayerNotifiedEventArgs(players[0]));
            return startingPlayer.NameTag;
        }

        /// <summary>
        /// Sets the next player of the game. If there's no current player, it sets the first player
        /// </summary>
        /// <returns></returns>
        public string SetNextPlayer()
        {
            int i = GetPlayingPlayerPosition();

            if (i == -1)
            {
                return SetFirstPlayer(PlayerList);
            }

            players[i].IsPlaying = false;
            players[(i + 1) % players.Count].IsPlaying = true;
            OnNextPlayer(new NextPlayerNotifiedEventArgs(players[(i + 1) % players.Count]));

            return players[GetPlayingPlayerPosition()].NameTag;
        }

        /// <summary>
        /// Allows the player to place a tile on the Board at a (x, y) position
        /// </summary>
        /// <param name="player"></param>
        /// <param name="tile"></param>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns>bool</returns>
        public bool PlaceTile(Player player, Tile tile, int x, int y)
        {
            if (PlayerSwapping)
            {
                OnPlaceTile(new PlaceTileNotifiedEventArgs(tile, "you are swapping, you can't place tile !"));
                return false;
            }

            if (!TileInbag(player, tile))
            {
                OnPlaceTile(new PlaceTileNotifiedEventArgs(tile, "you can't play"));
                return false;
            }

            if (!IsMoveCorrect(tile, x, y, board)) return false;
            if (board.AddTileInCell(x, y, tile))
            {
                AddCellUsed(board.GetCell(x, y));
                return player.RemoveTileToPlayer(tile);
            }

            return false;
        }

        private static bool TileInbag(Player player, Tile tile)
        {
            return player.Tiles.Any(t => ReferenceEquals(t, tile));
        }


        /// <summary>
        /// Allows a player to draw tiles from the bag as soon as he has less than 6 tiles
        /// </summary>
        /// <param name="player"></param>
        /// <returns></returns>
        public bool DrawTiles(Player player)
        {
            while (player.Tiles.Count < 6)
            {
                if (bag!.TilesBag!.Count == 0)
                {
                    return false;
                }

                int val = RandomNumberGenerator.GetInt32(0, bag.TilesBag.Count);

                player.AddTileToPlayer(bag.TilesBag[val]);
                bag.RemoveTileInBag(bag.TilesBag[val]);
            }

            return true;
        }

        /// <summary>
        /// Allows a player to swap some of his tile with the ones in the bag if he can't play them
        /// </summary>
        /// <param name="player"></param>
        /// <param name="tilesToSwap"></param>
        /// <returns>bool</returns>
        public bool SwapTiles(Player player, List<Tile> tilesToSwap)
        {
            if (cellUsed.Count != 0)
            {
                OnSwapTiles(new SwapTilesNotifiedEventArgs("You can't swap tiles after placing some !"));
                ReSwap(tilesToSwap);
                return false;
            }

            if (tilesToSwap.Count == 0)
            {
                OnSwapTiles(new SwapTilesNotifiedEventArgs("You must select at least one tile to swap !"));
                ReSwap(tilesToSwap);
                return false;
            }

            if (bag!.TilesBag!.Count < tilesToSwap.Count)
            {
                OnSwapTiles(new SwapTilesNotifiedEventArgs("Not enough tiles in the bag to swap !"));
                ReSwap(tilesToSwap);
                return false;
            }

            if (!DrawTiles(player))
            {
                return false;
            }

            foreach (var t in tilesToSwap)
            {
                bag!.AddTileInBag(t);
            }

            return true;
        }

        private void ReSwap(List<Tile> tilesToSwap)
        {
            foreach (var t in tilesToSwap)
            {
                players[GetPlayingPlayerPosition()].AddTileToPlayer(t);
            }
        }

        /// <summary>
        /// Extension of IsMoveCorrect to check beyond the surrounding cells of the cell where the tile is placed
        /// </summary>
        /// <param name="previousTilesFound"></param>
        /// <param name="tile"></param>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <param name="dx">used to get the direction on the x axis</param>
        /// <param name="dy">used to get the direction on the y axis</param>
        /// <param name="b"></param>
        /// <returns>bool</returns>
        public bool CheckExtendedSurroundingCells(ref bool previousTilesFound, Tile tile, int x, int y, int dx, int dy,
            Board b)
        {
            for (int i = 1; i < 7; i++)
            {
                var extendedCell = b.GetCell(x + i * dx, y + i * dy);

                if (cellUsed.Count == 0)
                {
                    previousTilesFound = true;
                }
                
                if (cellUsed.Contains(extendedCell!))
                {
                    previousTilesFound = true;
                }

                if (extendedCell?.Tile! == null!)
                {
                    break;
                }

                if (extendedCell.Tile.GetColor != tile.GetColor && extendedCell.Tile.GetShape != tile.GetShape)
                {
                    OnPlaceTile(new PlaceTileNotifiedEventArgs(tile,
                        " : Color / Shape does not match with the surrounding tiles !"));
                    return false;
                }

                if (extendedCell.Tile.GetColor == tile.GetColor && extendedCell.Tile.GetShape == tile.GetShape)
                {
                    OnPlaceTile(new PlaceTileNotifiedEventArgs(tile,
                        " : Tile already placed on the same line / column !"));
                    return false;
                }

                if (i == 6)
                {
                    OnPlaceTile(new PlaceTileNotifiedEventArgs(tile, " : Row/Column already are 6 tiles long !"));
                    return false;
                }
            }

            return true;
        }

        /// <summary>
        /// Extension of IsMoveCorrect to check if the tiles are on the same line
        /// </summary>
        /// <param name="cells"></param>
        /// <param name="b"></param>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns>bool</returns>
        public bool CheckTilesInLine(List<Cell> cells, Board b, int x, int y)
        {
            if (cells.Count == 0)
            {
                return true;
            }

            var x1 = cells[0].GetX;
            var y1 = cells[0].GetY;

            if (cells.Count < 2 && (x1 == x || y1 == y))
            {
                return true;
            }

            if (x1 != x && y1 != y)
            {
                return false;
            }

            var x2 = cells[1].GetX;
            var y2 = cells[1].GetY;

            if (x1 == x2)
            {
                return x == x1;
            }

            if (y1 == y2)
            {
                return y == y1;
            }

            return false;
        }

        /// <summary>
        /// Check that there isn't any same tile on a said line when a tile is forming a line
        /// </summary>
        /// <param name="t1"></param>
        /// <param name="nbTiles"></param>
        /// <param name="checkdoubles"></param>
        /// <returns></returns>
        public static bool CheckTileInCompletedLines(Tile? t1, ref int nbTiles, ref List<Tile> checkdoubles)
        {
            if (t1! != null!)
            {
                nbTiles++;

                if (checkdoubles.Any(t => t.CompareTo(t1) == 0))
                {
                    return false;
                }

                checkdoubles.Add(t1);
            }
            
            return true;
        }
        
        /// <summary>
        /// Check if the line is completed with the tile placed
        /// </summary>
        /// <param name="tile"></param>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <param name="dx"></param>
        /// <param name="dy"></param>
        /// <param name="b"></param>
        /// <param name="checkdoubles"></param>
        /// <returns></returns>
        public static bool CheckWrongCompletedLines(int x, int y, int dx, int dy, Board b, ref List<Tile> checkdoubles)
        {
            int nbTiles = 1;
            
            for (int i = 1; i < 7; i++)
            {
                var extendedCell = b.GetCell(x + i * dx, y + i * dy);
                var extendedCell2 = b.GetCell(x - i * dx, y - i * dy);

                if (extendedCell?.Tile! == null! && extendedCell2?.Tile! == null!)
                {
                    break;
                }

                if(!CheckTileInCompletedLines(extendedCell?.Tile, ref nbTiles, ref checkdoubles)) return false;
                       
                if(!CheckTileInCompletedLines(extendedCell2?.Tile, ref nbTiles, ref checkdoubles)) return false;
            }
            
            return nbTiles <= 6;
        }

        public bool IsMoveCorrect(Tile t, int x, int y, Board b)
        {
            if (!b.HasOccupiedCase())
            {
                return true;
            }

            if (b.GetCell(x, y)!.Tile! != null!)
            {
                OnPlaceTile(new PlaceTileNotifiedEventArgs(t, " : Cell already used !"));
                return false;
            }

            var surroundingCells = new List<Cell?>
            {
                b.GetCell(x + 1, y),
                b.GetCell(x - 1, y),
                b.GetCell(x, y + 1),
                b.GetCell(x, y - 1)
            };
            
            if (surroundingCells.All(cell => cell?.Tile! == null!))
            {
                OnPlaceTile(new PlaceTileNotifiedEventArgs(t,
                    " : You can't place a tile that isn't adjacent to another one !"));
                return false;
            }
            
            return IsTilePlacementCorrect(t, x, y, b, surroundingCells);
        }

        public bool IsTilePlacementCorrect(Tile t, int x, int y, Board b, List<Cell?> surroundingCells)
        {
            bool previousTilesFound = false;

            var checkDoubles = new List<Tile>();

            foreach (var cell in surroundingCells)
            {
                if (cell?.Tile! == null!)
                {
                    continue;
                }

                if (cell.Tile.GetColor != t.GetColor && cell.Tile.GetShape != t.GetShape)
                {
                    OnPlaceTile(new PlaceTileNotifiedEventArgs(t,
                        " : Colors / Shapes do not match with the surrounding tiles !"));
                    return false;
                }

                if (cell.Tile.GetColor == t.GetColor && cell.Tile.GetShape == t.GetShape)
                {
                    OnPlaceTile(new PlaceTileNotifiedEventArgs(t, " is already placed on the same line / column !"));
                    return false;
                }

                var dx = cell.GetX - x;
                var dy = cell.GetY - y;

                if (!CheckExtendedSurroundingCells(ref previousTilesFound, t, x, y, dx, dy, b))
                {
                    return false;
                }

                if (CheckWrongCompletedLines(x, y, dx, dy, b, ref checkDoubles)) continue;
                OnPlaceTile(new PlaceTileNotifiedEventArgs(t,
                    " : You can't complete this line ! (More than 6 tiles / same tiles on the line)"));
                return false;
            }

            if (!CheckTilesInLine(cellUsed, b, x, y))
            {
                OnPlaceTile(new PlaceTileNotifiedEventArgs(t,
                    "isn't on the same line as the ones previously placed !"));
                return false;
            }

            if (previousTilesFound) return true;
            OnPlaceTile(new PlaceTileNotifiedEventArgs(t,
                " : You must place your tile next / on the same line as the ones previously placed !"));
            return false;
        }


        /// <summary>
        /// Main method to get the score of the player after he played his turn
        /// </summary>
        /// <param name="player"></param>
        /// <param name="cellsPlayed"></param>
        /// <param name="b"></param>
        /// <returns>int</returns>
        public int GetPlayerScore(Player player, ReadOnlyCollection<Cell> cellsPlayed, Board b)
        {
            if (cellsPlayed.Count == 0)
            {
                return 0;
            }

            int score = cellsPlayed.Count;
            int nbCellsInLine = cellsPlayed.Count;

            if (cellsPlayed.Count == 6)
            {
                score += 6;
            }

            int cellsX = cellsPlayed[0].GetX;
            int cellsY = cellsPlayed[0].GetY;

            if (cellsPlayed.Count > 1)
            {
                foreach (var cell in cellsPlayed)
                {
                    if (cellsX != cell.GetX && cellsX != -1)
                    {
                        cellsX = -1;
                    }

                    else if (cellsY != cell.GetY && cellsY != -1)
                    {
                        cellsY = -1;
                    }
                }
            }
            else
            {
                cellsX = cellsY = -1;
            }

            score += cellsPlayed.Sum(cell =>
                CalculateAdjacentScore(cell, b, cellsPlayed, cellsX, cellsY, ref nbCellsInLine));

            if (nbCellsInLine == 6)
            {
                score += 6;
            }

            if (!scoreBoard.TryAdd(player.NameTag, score))
            {
                scoreBoard.TryGetValue(player.NameTag, out int scoreold);
                SetScoreBoard(player.NameTag, score + scoreold);
            }

            return score;
        }

        /// <summary>
        /// Extension of GetPlayerScore to calculate the score of the player based on the adjacent cells
        /// </summary>
        /// <param name="cell"></param>
        /// <param name="b"></param>
        /// <param name="cellsPlayed"></param>
        /// <param name="cellsX"></param>
        /// <param name="cellsY"></param>
        /// <param name="nbCellsInLine"></param>
        /// <returns>int</returns>
        public int CalculateAdjacentScore(Cell cell, Board b, ReadOnlyCollection<Cell> cellsPlayed, int cellsX,
            int cellsY, ref int nbCellsInLine)
        {
            int score = 0;

            var surroundingCells = new[]
            {
                b.GetCell(cell.GetX + 1, cell.GetY),
                b.GetCell(cell.GetX - 1, cell.GetY),
                b.GetCell(cell.GetX, cell.GetY + 1),
                b.GetCell(cell.GetX, cell.GetY - 1)
            };

            var checkedSurroundingCells = new List<Cell>();

            foreach (var adjacentCell in surroundingCells)
            {
                if (adjacentCell?.Tile! == null! || cellsPlayed.Contains(adjacentCell) ||
                    checkedSurroundingCells.Contains(adjacentCell))
                {
                    continue;
                }

                int dx = adjacentCell.GetX - cell.GetX;
                int dy = adjacentCell.GetY - cell.GetY;

                score += CalculateLineScore(cellsPlayed, cell, new Tuple<int, int>(dx, dy), b,
                    new Tuple<int, int>(cellsX, cellsY), ref nbCellsInLine);

                checkedSurroundingCells.Add(adjacentCell);
            }

            return score;
        }

        /// <summary>
        /// Extension of GetPlayerScore to calculate the score of the player based on the line/column of the adjacent cells
        /// </summary>
        /// <param name="cellsPlayed"></param>
        /// <param name="cell"></param>
        /// <param name="direction"></param>
        /// <param name="b"></param>
        /// <param name="orientation"></param>
        /// <param name="nbCellsInLine"></param>
        /// <returns>int</returns>
        public int CalculateLineScore(ReadOnlyCollection<Cell> cellsPlayed, Cell cell, Tuple<int, int> direction,
            Board b, Tuple<int, int> orientation, ref int nbCellsInLine)
        {
            int score = 0;

            for (int i = 1; i < 6; i++)
            {
                var extendedCell = b.GetCell(cell.GetX + i * direction.Item1, cell.GetY + i * direction.Item2);

                if (extendedCell?.Tile! == null! || cellsPlayed.Contains(extendedCell))
                {
                    break;
                }

                if (direction.Item1 != 0 && orientation.Item1 == -1 || direction.Item2 != 0 && orientation.Item2 == -1)
                {
                    nbCellsInLine++;
                }

                score++;
            }

            if (direction.Item1 == 0 && orientation.Item1 == -1 && orientation.Item2 != -1 ||
                direction.Item2 == 0 && orientation.Item2 == -1 && orientation.Item1 != -1)
            {
                score += 1;
            }

            return score;
        }


        /// <summary>
        /// Returns the list of the positions of the players who still have tiles in their bag
        /// </summary>
        /// <returns>List<int></returns>
        public List<int> CheckTilesBag()
        {
            List<int> playerTilesBagPos = [];

            if (bag!.TilesBag!.Count <= 12)
            {
                for (int i = 0; i < players.Count; i++)
                {
                    if (players[i].Tiles.Count != 0)
                    {
                        playerTilesBagPos.Add(i);
                    }
                }
            }

            return playerTilesBagPos;
        }

        /// <summary>
        /// Returns a boolean to check if the player can play a tile on the Board
        /// </summary>
        /// <param name="playerTilesBagPos"></param>
        /// <returns></returns>
        public bool CheckPlacementPossibilities(List<int> playerTilesBagPos)
        {
            foreach (var t1 in playerTilesBagPos)
            {
                foreach (var t in players[t1].Tiles)
                {
                    for (int b = 0; b < board.ReadCells.Count; b++)
                    {
                        int x = board.ReadCells[b].GetX;
                        int y = board.ReadCells[b].GetY;

                        if (IsMoveCorrect(t, x, y, board))
                        {
                            return true;
                        }
                    }
                }
            }

            return false;
        }


        /// <summary>
        /// Main method to check if the game is over
        /// </summary>
        /// <param name="player"></param>
        /// <returns></returns>
        public bool CheckGameOver(Player player)
        {
            List<int> playerTilesBagPos = CheckTilesBag();

            if (playerTilesBagPos.Count != 0 && !CheckPlacementPossibilities(playerTilesBagPos) ||
                bag!.TilesBag!.Count == 0 && players[GetPlayingPlayerPosition()].Tiles.Count == 0)
            {
                OnEndOfGame(new EndOfGameNotifiedEventArgs(player));
                GameRunning = false;
                scoreBoard.TryGetValue(player.NameTag, out int scoreold);
                SetScoreBoard(player.NameTag, 6 + scoreold);
                return true;
            }

            return false;
        }

        public void ClearGame()
        {
            players.Clear();
            scoreBoard.Clear();
            cellUsed.Clear();
            observableScoreBoard.Clear();
            bag = null;
            board = CreateBoard();
            GameRunning = false;
        }

        public void SetScoreBoard(string name, int score)
        {
            if (!scoreBoard.TryAdd(name, score))
            {
                scoreBoard[name] = score;
            }

            observableScoreBoard.Clear();
            foreach (var item in scoreBoard)
            {
                observableScoreBoard.Add(item);
            }

            OnPropertyChanged(nameof(ObservableScoreBoard));
        }
    }
}