/// <summary>
/// Get the players self defined score of a column index as its next move.
/// </summary>
/// <param name="board">Game board.</param>
/// <param name="columnIndexForPotentialMove">Column index for next potential move.</param>
/// <returns>Score of the column choice as players next move.</returns>
public long GetColumnScoreAfterPotentialMove(IBoard board, int columnIndexForPotentialMove)
{
IBoardAnalytics boardAnalytics = new BoardAnalytics();
long finalScore = 0;
// Get score for making the move
finalScore += boardAnalytics.NumberOfPiecesInARowOnBoardFromPotentialMove(Board.Board.TwoInARow, new GameMove(GamePiece, columnIndexForPotentialMove), board)
* Characteristics.ScoreConnectTwo;
finalScore += boardAnalytics.NumberOfPiecesInARowOnBoardFromPotentialMove(Board.Board.ThreeInARow, new GameMove(GamePiece, columnIndexForPotentialMove), board)
* Characteristics.ScoreConnectThree;
finalScore += boardAnalytics.NumberOfPiecesInARowOnBoardFromPotentialMove(Board.Board.FourInARow, new GameMove(GamePiece, columnIndexForPotentialMove), board)
* Characteristics.ScoreConnectFour;
// Setup for checking opponents potential move
IBoard boardAfterPotentialMove = board.Clone();
boardAfterPotentialMove.AddPiece(new GameMove(GamePiece, columnIndexForPotentialMove));
var opponentsGamePiece = GamePiece == ConnectFourGame.PlayerOneGamePiece
? ConnectFourGame.PlayerTwoGamePiece
: ConnectFourGame.PlayerOneGamePiece;
// Subtract points for the potential move the opponent gets
if (!boardAfterPotentialMove.IsColumnFull(columnIndexForPotentialMove))
{
finalScore += boardAnalytics.NumberOfPiecesInARowOnBoardFromPotentialMove(Board.Board.TwoInARow, new GameMove(opponentsGamePiece, columnIndexForPotentialMove), boardAfterPotentialMove)
* Characteristics.ScoreGivingConnectTwo;
finalScore += boardAnalytics.NumberOfPiecesInARowOnBoardFromPotentialMove(Board.Board.ThreeInARow, new GameMove(opponentsGamePiece, columnIndexForPotentialMove), boardAfterPotentialMove)
* Characteristics.ScoreGivingConnectThree;
finalScore += boardAnalytics.NumberOfPiecesInARowOnBoardFromPotentialMove(Board.Board.FourInARow, new GameMove(opponentsGamePiece, columnIndexForPotentialMove), boardAfterPotentialMove)
* Characteristics.ScoreGivingConnectFour;
}
return(finalScore);
}
public void CountNumberOfBackwardDiagonalRunsTest()
{
IBoard board = BoardCreator.GetBoardWithBackwardDiagonalLine(NumberOfPiecesInALine);
IBoardAnalytics boardAnalytics = new BoardAnalytics();
int numberOfRuns = boardAnalytics.NumberOfPiecesInARowOnBoard(NumberOfPiecesInALine, BoardCreator.PlayerOneGamePiece, board);
Assert.AreEqual(numberOfRuns, 1);
}
/// <summary>
/// Get the players self defined score of the current state of the board.
/// </summary>
/// <param name="board">Game board.</param>
/// <returns>Score of the board.</returns>
public long GetBoardScore(IBoard board)
{
long boardScore = 0;
IBoardAnalytics boardAnalytics = new BoardAnalytics();
var opponentsGamePiece = GamePiece == ConnectFourGame.PlayerOneGamePiece
? ConnectFourGame.PlayerTwoGamePiece
: ConnectFourGame.PlayerOneGamePiece;
// Get score for making the move
boardScore += boardAnalytics.NumberOfPiecesInARowOnBoard(Board.Board.TwoInARow, GamePiece, board) * Characteristics.ScoreConnectTwo;
boardScore += boardAnalytics.NumberOfPiecesInARowOnBoard(Board.Board.ThreeInARow, GamePiece, board) * Characteristics.ScoreConnectThree;
boardScore += boardAnalytics.NumberOfPiecesInARowOnBoard(Board.Board.FourInARow, GamePiece, board) * Characteristics.ScoreConnectFour;
// Subtract points for the potential move the opponent gets
boardScore += boardAnalytics.NumberOfPiecesInARowOnBoard(Board.Board.TwoInARow, opponentsGamePiece, board) * Characteristics.ScoreGivingConnectTwo;
boardScore += boardAnalytics.NumberOfPiecesInARowOnBoard(Board.Board.ThreeInARow, opponentsGamePiece, board) * Characteristics.ScoreGivingConnectThree;
boardScore += boardAnalytics.NumberOfPiecesInARowOnBoard(Board.Board.FourInARow, opponentsGamePiece, board) * Characteristics.ScoreGivingConnectFour;
return(boardScore);
}
