Package org.drools.planner.examples.nqueens.domain

Examples of org.drools.planner.examples.nqueens.domain.Queen

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        int n = nQueens.getN();
        List<Queen> queenList = nQueens.getQueenList();
        setLayout(new GridLayout(n, n));
        for (int row = 0; row < n; row++) {
            for (int column = 0; column < n; column++) {
                Queen queen = queenList.get(column);
                if (queen.getColumn().getIndex() != column) {
                    throw new IllegalStateException("The queenList is not in the expected order.");
                }
                String toolTipText = "row " + row + ", column " + column;
                if (queen.getRow() != null && queen.getRow().getIndex() == row) {
                    JButton button = new JButton(new QueenAction(queen));
                    button.setMinimumSize(new Dimension(20, 20));
                    button.setPreferredSize(new Dimension(20, 20));
                    button.setToolTipText(toolTipText);
                    add(button);
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    private NQueens createNQueens(int n) {
        NQueens nQueens = new NQueens();
        nQueens.setId(0L);
        List<Queen> queenList = new ArrayList<Queen>(n);
        for (int i = 0; i < n; i++) {
            Queen queen = new Queen();
            queen.setId((long) i);
            queen.setX(i);
            queen.setY(0);
            queenList.add(queen);
        }
        nQueens.setQueenList(queenList);
        return nQueens;
    }
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        int n = nQueens.getN();
        List<Queen> queenList = nQueens.getQueenList();
        setLayout(new GridLayout(n, n));
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                Queen queen = queenList.get(j);
                if (queen.getY() == i) {
                    JButton button = new JButton(new QueenAction(queen));
                    button.setHorizontalTextPosition(SwingConstants.CENTER);
                    button.setVerticalTextPosition(SwingConstants.BOTTOM);
                    add(button);
                } else {
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public class QueenDifficultyWeightFactory implements PlanningEntityDifficultyWeightFactory {

    public Comparable createDifficultyWeight(Solution solution, Object planningEntity) {
        NQueens nQueens = (NQueens) solution;
        Queen queen = (Queen) planningEntity;
        int distanceFromMiddle = calculateDistanceFromMiddle(nQueens.getN(), queen.getColumnIndex());
        return new QueenDifficultyWeight(queen, distanceFromMiddle);
    }
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        int n = nQueens.getN();
        List<Queen> queenList = nQueens.getQueenList();
        setLayout(new GridLayout(n, n));
        for (int row = 0; row < n; row++) {
            for (int column = 0; column < n; column++) {
                Queen queen = queenList.get(column);
                if (queen.getColumn().getIndex() != column) {
                    throw new IllegalStateException("The queenList is not in the expected order.");
                }
                String toolTipText = "row " + row + ", column " + column;
                if (queen.getRow() != null && queen.getRow().getIndex() == row) {
                    JButton button = new JButton(new QueenAction(queen));
                    button.setMinimumSize(new Dimension(20, 20));
                    button.setPreferredSize(new Dimension(20, 20));
                    button.setToolTipText(toolTipText);
                    add(button);
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        }
        nQueens.setRowList(rowList);
        List<Queen> queenList = new ArrayList<Queen>(n);
        long id = 0;
        for (Column column : columnList) {
            Queen queen = new Queen();
            queen.setId(id);
            id++;
            queen.setColumn(column);
            // Notice that we leave the PlanningVariable properties on null
            queenList.add(queen);
        }
        nQueens.setQueenList(queenList);
        logger.info("NQueens with {} queens.", nQueens.getN());
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        List<Queen> queenList = nQueens.getQueenList();
       
        int score = 0;
        for (int i = 0; i < n; i++) {
            for (int j = i + 1; j < n; j++) {
                Queen leftQueen = queenList.get(i);
                Queen rightQueen = queenList.get(j);
                if (leftQueen.getRow() != null && rightQueen.getRow() != null) {
                    if (leftQueen.getRowIndex() == rightQueen.getRowIndex()) {
                        score--;
                    }
                    if (leftQueen.getAscendingDiagonalIndex() == rightQueen.getAscendingDiagonalIndex()) {
                        score--;
                    }
                    if (leftQueen.getDescendingDiagonalIndex() == rightQueen.getDescendingDiagonalIndex()) {
                        score--;
                    }
                }
            }
        }
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        StringBuilder displayString = new StringBuilder();
        int n = nQueens.getN();
        List<Queen> queenList = nQueens.getQueenList();
        for (int row = 0; row < n; row++) {
            for (int column = 0; column < n; column++) {
                Queen queen = queenList.get(column);
                if (queen.getColumn().getIndex() != column) {
                    throw new IllegalStateException("The queenList is not in the expected order.");
                }
                displayString.append(" ");
                if (queen.getRow() != null && queen.getRow().getIndex() == row) {
                    displayString.append("Q");
                } else {
                    displayString.append("_");
                }
            }
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Related Classes of org.drools.planner.examples.nqueens.domain.Queen

  • org.apache.commons.lang.builder.CompareToBuilder
  • org.drools.planner.examples.nqueens.app.NQueensHelloWorld
  • org.drools.planner.examples.nqueens.domain.solution.QueenDifficultyWeightFactory
  • org.drools.planner.examples.nqueens.persistence.NQueensGenerator
  • org.drools.planner.examples.nqueens.solver.score.NQueensSimpleScoreCalculator
  • org.drools.planner.examples.nqueens.swingui.NQueensPanel
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