29 lines
953 B
Java
29 lines
953 B
Java
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public Pair<Point, Point> play(State game) {
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int bestValue = Integer.MIN_VALUE;
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Pair<Point, Point> bestMove = null;
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for(Pair<Point, Point> move : game.getMove(game.getCurrentPlayer())) {
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State nextState = game.play(move);
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complexity++;
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int value = -alphabeta(nextState, this.depth,Integer.MIN_VALUE,Integer.MAX_VALUE);
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if (value > bestValue) {
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bestValue = value;
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bestMove = move;
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}
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}
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return bestMove;
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}
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private int alphabeta(State state, int depth,int alpha,int beta) {
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if(depth == 0 || state.isOver()) {
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return evaluate(state);
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} else {
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for (Pair<Point, Point> move : state.getMove(state.getCurrentPlayer())) {
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State nextState = state.play(move);
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alpha = Math.max(alpha,-alphabeta(nextState,depth-1,-beta,-alpha));
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if(alpha >= beta)
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return alpha;
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}
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return alpha;
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}
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}
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