/**
* Generates random squares for the pieces of the provided tablebase.
*
* @param tablebase computerized database containing all possible legal chess positions and their
* evaluations, given the set of specific chess pieces
* @return the bidirectional map from the pieces present in this chess position, to the squares
* they occupy
*/
static BiMap<Piece, Square> generateRandomSquaresForPieces(Tablebase tablebase) {
BiMap<Piece, Square> piecesWithSquares = EnumBiMap.create(Piece.class, Square.class);
List<Piece> pieces = tablebase.getAllPieces();
MersenneTwisterFast numberGenerator = new MersenneTwisterFast();
Square randSquare = null;
for (Piece piece : pieces) {
do {
if (piece.getPieceType() == PieceType.PAWN) {
int pRand = numberGenerator.nextInt(Squares.PAWN_SQUARES.numberOfSquares());
randSquare = Squares.PAWN_SQUARES.getSquaresAsList().get(pRand);
} else {
int allRand = numberGenerator.nextInt(Squares.ALL_SQUARES.numberOfSquares());
randSquare = Squares.ALL_SQUARES.getSquaresAsList().get(allRand);
}
} while (piecesWithSquares.containsValue(randSquare));
piecesWithSquares.put(piece, randSquare);
}
return piecesWithSquares;
}
private JLabel determinePiece(Piece piece) throws IOException {
if (piece.getPieceColor() == PieceColor.WHITE) {
switch (piece.getPieceType().name()) {
case ("KING"):
JLabel wKing = new JLabel(new ImageIcon(ImageIO.read(new File("art/wKing.png"))));
wKing.setSize(new Dimension(64, 64));
return wKing;
case ("QUEEN"):
JLabel wQueen = new JLabel(new ImageIcon(ImageIO.read(new File("art/wQueen.png"))));
wQueen.setSize(new Dimension(64, 64));
return wQueen;
case ("BISHOP"):
JLabel wBishop = new JLabel(new ImageIcon(ImageIO.read(new File("art/wBishop.png"))));
wBishop.setSize(new Dimension(64, 64));
return wBishop;
case ("KNIGHT"):
JLabel wKnight = new JLabel(new ImageIcon(ImageIO.read(new File("art/wKnight.png"))));
wKnight.setSize(new Dimension(64, 64));
return wKnight;
case ("ROOK"):
JLabel wRook = new JLabel(new ImageIcon(ImageIO.read(new File("art/wRook.png"))));
wRook.setSize(new Dimension(64, 64));
return wRook;
case ("PAWN"):
JLabel wPawn = new JLabel(new ImageIcon(ImageIO.read(new File("art/wPawn.png"))));
wPawn.setSize(new Dimension(64, 64));
return wPawn;
default:
throw new IllegalArgumentException();
}
} else {
switch (piece.getPieceType().name()) {
case ("KING"):
JLabel bKing = new JLabel(new ImageIcon(ImageIO.read(new File("art/bKing.png"))));
bKing.setSize(new Dimension(64, 64));
return bKing;
case ("QUEEN"):
JLabel bQueen = new JLabel(new ImageIcon(ImageIO.read(new File("art/bQueen.png"))));
bQueen.setSize(new Dimension(64, 64));
return bQueen;
case ("BISHOP"):
JLabel bBishop = new JLabel(new ImageIcon(ImageIO.read(new File("art/bBishop.png"))));
bBishop.setSize(new Dimension(64, 64));
return bBishop;
case ("KNIGHT"):
JLabel bKnight = new JLabel(new ImageIcon(ImageIO.read(new File("art/bKnight.png"))));
bKnight.setSize(new Dimension(64, 64));
return bKnight;
case ("ROOK"):
JLabel bRook = new JLabel(new ImageIcon(ImageIO.read(new File("art/bRook.png"))));
bRook.setSize(new Dimension(64, 64));
return bRook;
case ("PAWN"):
JLabel bPawn = new JLabel(new ImageIcon(ImageIO.read(new File("art/bPawn.png"))));
bPawn.setSize(new Dimension(64, 64));
return bPawn;
default:
throw new IllegalArgumentException();
}
}
}
