Examples of com.barrybecker4.game.twoplayer.common.search.strategy.NegaScoutMemoryStrategy

Package com.barrybecker4.game.twoplayer.common.search.strategy

Examples of com.barrybecker4.game.twoplayer.common.search.strategy.NegaScoutMemoryStrategy

com.barrybecker4.game.common.MoveList

e.csail.mit.edu/plaat/mtdf.html and http://en.wikipedia.org/wiki/Negascout Transposition table (TT) enhanced Alpha-Beta (from http://www.top-5000.nl/ps/An%20Algorithm%20faster%20than%20negascout%20and%20SSS%20in%20pratice.pdf)

 function AlphaBetaWithMemory(n, a, b) { // Check if position is in table and has been searched to sufficient depth. if (retrieve(n)) { if (n.max <= a or n.max == n.min)  return n.max; if (n.min >= b) return n.min ; } // Reached the maximum search depth if (n = leaf) { n.min = n.max = g = eval(n); } else  { g = -inf; c = firstchild(n); // Search until a cutoff occurs or all children have been considered while g < b and c != null { g = max(g, -AlphaBetaWithMemory(c, -b, -a)); a = max(a, g); c = nextbrother(c); } // Save in transposition table if g <= a then n.max = g; if a < g < b then n.max = n.min = g; if g >= b then n.min = g; } store(n); return g; }

@author Barry Becker

        return interpolator.interpolate(value);
    }


    @Override
    public Range getDomain() {
        return new Range(0, 1.0);
    }

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        return sign * inverseInterpolator.interpolate(Math.abs(x));
    }


    @Override
    public Range getDomain() {
        return new Range(-5.0, 5.0);
    }

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    }


    /** X axis domain */
    @Override
    public Range getDomain() {
        return new Range(xValues.get(0), xValues.get(xValues.size()-1));
    }

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        return getInterpolatedValue(value);
    }


    @Override
    public Range getDomain() {
        return new Range(xValues[0], xValues[xValues.length-1]);
    }

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        return Math.pow(base, value / scale);
    }


    @Override
    public Range getDomain() {
        return new Range(0, Double.MAX_VALUE);
    }

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        return (value - offset) / scale;
    }


    @Override
    public Range getDomain() {
        return new Range(Double.MIN_VALUE, Double.MAX_VALUE);
    }

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    /**
     * Constructor.
     */
    public ErrorFunction() {
        interpolator = new LinearInterpolator(ERROR_FUNCTION);
        inverseInterpolator = new LinearInterpolator(INVERSE_ERROR_FUNCTION);
    }

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     */
    protected boolean processToken(SGFToken token, MoveList moveList) {


        boolean found = false;
        if (token instanceof PlacementToken ) {
            Move move = createMoveFromToken( token );
            GameContext.log(2, "creating move="+ move);
            moveList.add( move );
            found = true;
        } else {
            GameContext.log(0, "ignoring token "+token.getClass().getName());

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    }


    @Override
    public void update(GameController controller) {
        setPlayerLabel(controller.getCurrentPlayer());
        Move lastMove =  controller.getLastMove();
        if (lastMove != null)  {
            moveNumLabel_.setText( (controller.getPlayers().getNumPlayers() + 2) + " " );
        }
        else {
            moveNumLabel_.setText( 1 + " " );

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     */
    protected void restoreGame( SGFGame game )
    {
        parseSGFGameInfo(game);


        MoveList moveSequence = new MoveList();
        extractMoveList( game.getTree(), moveSequence );
        GameContext.log( 1, "move sequence= " + moveSequence );
        controller_.reset();


        for (Move m : moveSequence) {

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