/** Uses adversarial search for selecting the next action. */
private void proposeMove() {
Integer action;
int time = (timeCombo.getSelectedIndex() + 1) * 5;
dasg_i_SearchAdversarial<ConnectFourState, Integer> search;
switch (strategyCombo.getSelectedIndex()) {
case 0:
search = dasg_SearchAdversarialMinimax.createFor(game);
break;
case 1:
search = dasg_SearchAlphaBeta.createFor(game);
break;
case 2:
search =
dasg_SearchAdversarialIterativeDeepeningAlphaBeta.createFor(game, 0.0, 1.0, time);
break;
case 3:
search = new ConnectFourAIPlayer(game, time);
break;
default:
search = new ConnectFourAIPlayer(game, time);
((ConnectFourAIPlayer) search).setLogEnabled(true);
}
action = search.makeDecision(currState);
searchMetrics = search.getMetrics();
currState = game.getResult(currState, action);
}
/** Handles all button events and updates the view. */
public void actionPerformed(ActionEvent e) {
searchMetrics = null;
if (e == null || e.getSource() == clearButton) {
currState = game.getInitialState();
} else if (!game.isTerminal(currState)) {
if (e.getSource() == proposeButton) {
proposeMove();
} else if (e.getSource() instanceof GridElement) {
GridElement el = (GridElement) e.getSource();
currState = game.getResult(currState, el.col); // take next
// turn
}
}
repaint(); // paint all disks!
updateStatus();
}