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