public static int GetBlackHoleRatio(Board board, PieceEnum player)
{
int myPieces = 0;
int opPieces = 0;
PieceEnum opponent = player.GetOpponent();
int blackHoleX = board.blackHoleCoords[0];
int blackHoleY = board.blackHoleCoords[1];
for (int i = -1; i < 2; i++)
{
for (int j = -1; j < 2; j++)
{
if (board.board[blackHoleY + i, blackHoleX + j] == player)
{
myPieces++;
}
if (board.board[blackHoleY + i, blackHoleX + j] == opponent)
{
opPieces++;
}
}
}
int result = 100 * (myPieces - opPieces) / (myPieces + opPieces + 1);
return(result);
}
private int[] GetSuccesfulMoveInDirection(int[] boardSquareCoordinates, int dirX, int dirY, PieceEnum currentPlayer)
{
PieceEnum opponent = currentPlayer.GetOpponent();
int hasBeatableEnemies = 0;
int tempY = boardSquareCoordinates[0];
int tempX = boardSquareCoordinates[1];
//move to next checked square
tempX += dirX;
tempY += dirY;
while (IsInRange(tempY) && IsInRange(tempX)) //while inside board borders
{
if (this.board[tempX, tempY] == opponent) //found opponent
{
hasBeatableEnemies = 1;
}
else if (hasBeatableEnemies == 1 && this.board[tempX, tempY] == PieceEnum.none)//there are beatable opponents
{
return(new int[] { 1, tempY, tempX, dirX, dirY });
}
else if (this.board[tempX, tempY] != opponent)//found no enemies, reached dead end
{
break;
}
tempX += dirX;
tempY += dirY;
}
return(new int[] { 0, tempY, tempX, dirX, dirY });//no beatable enemies found
}
//LEGACY functions
public static int GetMobility(Board board, PieceEnum player)
{
int currentPlayerMovesLength = board.GetValidMovesList(player).Length;
int opponentMovesLength = board.GetValidMovesList(player.GetOpponent()).Length;
int result = currentPlayerMovesLength - opponentMovesLength;
return(result);
}
public int ChangePieces(int coordX, int coordY, int x, int y, PieceEnum colorCurrent)
{
int changed = 0;
int[] XYDirs = new int[] { coordX, coordY, x, y };
//Console.WriteLine("{1} [{0}]", string.Join(", ", XYDirs), "XYDirs");
board[coordY, coordX] = colorCurrent;
while (board[coordY - x, coordX - y] == colorCurrent.GetOpponent())
{
coordX -= y;
coordY -= x;
board[coordY, coordX] = colorCurrent;
changed++;
}
return(changed);
}
public static int GetCornerRatio(Board board, PieceEnum player)
{
int myCorners = 0;
int opCorners = 0;
PieceEnum opponent = player.GetOpponent();
if (board.board[0, 0] == player)
{
myCorners++;
}
if (board.board[7, 0] == player)
{
myCorners++;
}
if (board.board[0, 7] == player)
{
myCorners++;
}
if (board.board[7, 7] == player)
{
myCorners++;
}
if (board.board[0, 0] == opponent)
{
opCorners++;
}
if (board.board[7, 0] == opponent)
{
opCorners++;
}
if (board.board[0, 7] == opponent)
{
opCorners++;
}
if (board.board[7, 7] == opponent)
{
opCorners++;
}
int result = 100 * (myCorners - opCorners) / (myCorners + opCorners + 1);
return(result);
}
public static int[] GetPieceCount(Board board, PieceEnum playerColor)
{
int playerPieceCount = 0;
int opponentPieceCount = 0;
PieceEnum opponentColor = playerColor.GetOpponent();
for (int i = 0; i < board.boardLength; i++)
{
for (int j = 0; j < board.boardLength; j++)
{
if (board.board[i, j] == playerColor)
{
playerPieceCount++;
}
else if (board.board[i, j] == opponentColor)
{
opponentPieceCount++;
}
}
}
return(new int[] { playerPieceCount, opponentPieceCount });
}