public override void GeneratePossibleMoves(ChessGridInfo grid, ChessGridInfo gridCopy, ChessPlayer playerCopy,
ChessPlayer enemyCopy, bool checkMovesValidity, bool checkSpecialMoves)
{
AvailableMoves.Clear();
Vector2Int newSquare = Vector2Int.zero;
for (int i = 0; i < possibleDirections.GetLength(0); i++)
{
if (i == 1 && MovedFirstTime)
{
break;
}
int newX = SquareIndex.x + possibleDirections[i, 0];
int newY = SquareIndex.y + possibleDirections[i, 1];
newSquare.Set(newX, newY);
if (grid.CheckIfSquareIndexIsValid(newSquare))
{
Piece piece = grid.GetPieceOnSquareIndex(newSquare);
Move move = CheckPromotionFlag(newSquare, piece);
if (checkMovesValidity && piece == null)
{
Piece attackedPieceCopy = piece == null ? null : gridCopy.GetPieceOnSquareIndex(piece.SquareIndex);
Move moveCopy = new Move(gridCopy.GetPieceOnSquareIndex(SquareIndex), newSquare, attackedPieceCopy, move.PromotionFlag);
bool areMovesValid = CheckIfMoveIsValid(gridCopy, playerCopy, enemyCopy, moveCopy);
if (!areMovesValid)
{
continue;
}
}
if (piece == null)
{
AvailableMoves.Add(move);
}
else
{
break;
}
}
}
PieceAttack(grid, gridCopy, playerCopy, enemyCopy, checkMovesValidity);
EnPassant(grid, gridCopy, playerCopy, enemyCopy, checkMovesValidity);
}
public override void GeneratePossibleMoves(ChessGridInfo grid, ChessGridInfo gridCopy, ChessPlayer playerCopy,
ChessPlayer enemyCopy, bool checkMovesValidity, bool checkSpecialMoves)
{
AvailableMoves.Clear();
Vector2Int newSquare = Vector2Int.zero;
for (int i = 0; i < possibleDirections.GetLength(0); i++)
{
int newX = SquareIndex.x + possibleDirections[i, 0];
int newY = SquareIndex.y + possibleDirections[i, 1];
newSquare.Set(newX, newY);
if (grid.CheckIfSquareIndexIsValid(newSquare))
{
Piece piece = grid.GetPieceOnSquareIndex(newSquare);
Move move = new Move(this, newSquare, piece);
if (checkMovesValidity && piece != null && piece.PieceType == PieceType.King)
{
continue;
}
if (checkMovesValidity && (piece == null || (piece != null && piece.TeamColor != TeamColor)))
{
Piece attackedPieceCopy = piece == null ? null : gridCopy.GetPieceOnSquareIndex(piece.SquareIndex);
Move moveCopy = new Move(gridCopy.GetPieceOnSquareIndex(SquareIndex), newSquare, attackedPieceCopy);
bool areMovesValid = CheckIfMoveIsValid(gridCopy, playerCopy, enemyCopy, moveCopy);
if (!areMovesValid)
{
continue;
}
}
if (piece == null)
{
AvailableMoves.Add(move);
}
else if (piece != null && TeamColor != piece.TeamColor)
{
AvailableMoves.Add(move);
}
}
}
}
private void PieceAttack(ChessGridInfo grid, ChessGridInfo gridCopy, ChessPlayer playerCopy,
ChessPlayer enemyCopy, bool checkMovesValidity)
{
Vector2Int newSquare = Vector2Int.zero;
for (int i = 0; i < possibleAttacks.GetLength(0); i++)
{
int newX = SquareIndex.x + possibleAttacks[i, 0];
int newY = SquareIndex.y + possibleAttacks[i, 1];
newSquare.Set(newX, newY);
if (grid.CheckIfSquareIndexIsValid(newSquare))
{
Piece piece = grid.GetPieceOnSquareIndex(newSquare);
Move move = CheckPromotionFlag(newSquare, piece);
if (checkMovesValidity && piece != null && piece.PieceType == PieceType.King)
{
continue;
}
if (checkMovesValidity && (piece != null && piece.TeamColor != TeamColor))
{
Piece attackedPieceCopy = piece == null ? null : gridCopy.GetPieceOnSquareIndex(piece.SquareIndex);
Move moveCopy = new Move(gridCopy.GetPieceOnSquareIndex(SquareIndex), newSquare, attackedPieceCopy, move.PromotionFlag);
bool areMovesValid = CheckIfMoveIsValid(gridCopy, playerCopy, enemyCopy, moveCopy);
if (!areMovesValid)
{
continue;
}
}
if (piece != null && TeamColor != piece.TeamColor)
{
AvailableMoves.Add(move);
}
}
}
}
private void EnPassant(ChessGridInfo grid, ChessGridInfo gridCopy, ChessPlayer playerCopy,
ChessPlayer enemyCopy, bool checkMovesValidity)
{
int[,] directions = { { -1, 0 }, { 1, 0 } };
Vector2Int newSquare = Vector2Int.zero;
for (int i = 0; i < directions.GetLength(0); i++)
{
int newX = SquareIndex.x + directions[i, 0];
int newY = SquareIndex.y + directions[i, 1];
newSquare.Set(newX, newY);
if (grid.CheckIfSquareIndexIsValid(newSquare))
{
Piece piece = grid.GetPieceOnSquareIndex(newSquare);
Vector2Int square = new Vector2Int(SquareIndex.x + enPassantMoves[i, 0], SquareIndex.y + enPassantMoves[i, 1]);
Move move = CheckPromotionFlag(square, piece);
if (checkMovesValidity && piece != null && piece.PieceType == PieceType.Pawn && piece == grid.PieceMovedInPreviousTurn &&
Mathf.Abs(piece.SquareIndex.y - piece.PreviousSquareIndex.y) == 2 && piece.SquareIndex.x == piece.PreviousSquareIndex.x)
{
Piece attackedPieceCopy = piece == null ? null : gridCopy.GetPieceOnSquareIndex(piece.SquareIndex);
Move moveCopy = new Move(gridCopy.GetPieceOnSquareIndex(SquareIndex), square, attackedPieceCopy, move.PromotionFlag);
bool areMovesValid = CheckIfMoveIsValid(gridCopy, playerCopy, enemyCopy, moveCopy);
if (!areMovesValid)
{
continue;
}
}
if (piece != null && piece.PieceType == PieceType.Pawn && piece == grid.PieceMovedInPreviousTurn &&
Mathf.Abs(piece.SquareIndex.y - piece.PreviousSquareIndex.y) == 2 && piece.SquareIndex.x == piece.PreviousSquareIndex.x)
{
AvailableMoves.Add(move);
break;
}
}
}
}
