@Override public void mouseClicked(MouseEvent m) { SquarePanel sp = ((SquarePanel) (m.getSource())); Piece p = Board.getInstance().getPieceAtSquare(sp.getI(), sp.getJ()); if (sp.getBackground().equals(Color.red)) { sp.getBoardView().recolorBoard(); Board.getInstance().setSelectedPiece(null); } else if (sp.getBackground().equals(PURPLE)) { Piece piece = Board.getInstance().getSelectedPiece(); Board.getInstance().setSelectedPiece(null); Move move = new Move(piece.getLocation(), Board.getInstance().getSquare(sp.getI(), sp.getJ()), piece); Board.getInstance().makeMove(move); sp.getBoardView().setUpBoard(); Board.getInstance().setLastPlayerMove(move); Move last = Board.getInstance().getLastPlayerMove(); if (last.getPiece() instanceof Pawn && last.getEndPositon().getI() == 0) { new PromotionWindow(last.getPiece(), sp.getBoardView()); } try { Move cpuMove = Search.decision(last); Board.getInstance().setLastCpuMove(cpuMove); Board.getInstance().makeMove(cpuMove); sp.getBoardView().setUpBoard(); sp.getBoardView() .getSquarePanelAt(cpuMove.getEndPositon().getI(), cpuMove.getEndPositon().getJ()) .setBackground(Color.blue); /*ArrayList<Move> opposingPlayer = Search.getAvailableMoves(0); if(opposingPlayer.isEmpty()){ System.out.println("check mate"); }*/ Move lastCpu = Board.getInstance().getLastCpuMove(); if (lastCpu.getPiece() instanceof Pawn && lastCpu.getEndPositon().getI() == 7) { Piece pawn = lastCpu.getPiece(); Piece newPiece = new PieceFactory().createPiece("bq", pawn.getLocation()); newPiece.setLocation(pawn.getLocation()); Board.getInstance().removePiece(pawn, 1); Board.getInstance().addPiece(newPiece, 1); pawn.setLocation(null); sp.getBoardView().setUpBoard(); } } catch (Exception e) { } } else if (p != null && !p.equals(Board.getInstance().getSelectedPiece()) && p.getPlayer() != 1) { Board.getInstance().setSelectedPiece(p); sp.getBoardView().recolorBoard(); sp.setBackground(Color.red); ArrayList<Move> moves = p.generateMoves(); moves = KingSafety.safeMoves(moves, 0); if (!moves.isEmpty()) { for (Move mv : moves) { sp.getBoardView() .getSquarePanelAt(mv.getEndPositon().getI(), mv.getEndPositon().getJ()) .setBackground(Color.green); } } } }