Examples with Listener me.wobblyyyy.pathfinder2.listening.Listener used on opensource projects

Example 1 with Listener

use of me.wobblyyyy.pathfinder2.listening.Listener in project Pathfinder2 by Wobblyyyy.

the class ListenerManager method tick.

/**
 * "Tick", or update, the listener manager once by ticking/updating
 * each of the listeners operated by the manager.
 */
@Override
public boolean tick(Pathfinder pathfinder) {
    List<String> expiredListeners = new ArrayList<String>(listeners.size());
    for (Map.Entry<String, Listener> entry : listeners.entrySet()) {
        String name = entry.getKey();
        Listener listener = entry.getValue();
        // remove expired listeners, tick non-expired listeners
        if (listener.hasExpired())
            expiredListeners.add(name);
        else
            listener.tick(pathfinder);
    }
    // actually remove the listener if it's expired
    for (String key : expiredListeners) listeners.remove(key);
    return true;
}

Example 2 with Listener

use of me.wobblyyyy.pathfinder2.listening.Listener in project Pathfinder2 by Wobblyyyy.

the class ExampleListeners method examplePositionListeners.

@SuppressWarnings({ "CodeBlock2Expr", "unchecked", "InfiniteLoopStatement" })
public void examplePositionListeners() {
    Pathfinder pathfinder = Pathfinder.newSimulatedPathfinder(0.01);
    Gamepad gamepad = new Gamepad();
    // first up, some listeners for the robot's actual position. you can
    // create listeners fairly easily:
    // (also, notice how method chaining is used to make code more
    // readable - you don't have to do this!)
    pathfinder.addListener(new Listener(ListenerMode.CONDITION_NEWLY_MET, () -> {
        // this will be executed ONCE whenever x exceeds 500.
        // in order for this to be executed again, x will have to
        // dip below 500 and then come back over 500 again
        System.out.println("x crossed over 500!");
    }, () -> {
        return pathfinder.getPosition().x() > 500;
    })).addListener(new Listener(// here's a nicer-looking way to do the same exact thing.
    ListenerMode.CONDITION_NEWLY_MET, () -> System.out.println("y crossed over 500!"), () -> pathfinder.getPosition().y() > 500)).addListener(new Listener(ListenerMode.CONDITION_NEWLY_MET, () -> System.out.println("x AND y crossed over 500! wow!"), () -> {
        PointXY position = pathfinder.getPosition();
        return position.x() > 500 && position.y() > 500;
    }));
    // time for more listeners! this time, these listeners demonstrate
    // how you could use listeners to bind functionality to a button.
    pathfinder.addListener(new Listener(ListenerMode.CONDITION_NEWLY_MET, () -> {
        System.out.println("the A button has been pressed!");
    }, gamepad::a));
    pathfinder.addListener(new Listener(ListenerMode.CONDITION_NEWLY_NOT_MET, () -> {
        System.out.println("the A button has been released!");
    }, gamepad::a));
    // here's a more complex condition...
    // notice how we make use of the oh-so-lovely lambda syntax available
    // in java to make this code significantly more tolerable
    pathfinder.addListener(new Listener(ListenerMode.CONDITION_NEWLY_MET, () -> System.out.println("the right and left joysticks have" + "magnitudes above 0.5!"), () -> gamepad.joysticks.right().getMagnitude() > 0.5 && gamepad.joysticks.left().getMagnitude() > 0.5));
    // and here's an alternative way to have multiple preconditions.
    pathfinder.addListener(new Listener(ListenerMode.CONDITION_NEWLY_NOT_MET, () -> {
        System.out.println("the right and left joysticks have" + "magnitudes below 0.5!");
    }, // precondition #1
    () -> {
        return gamepad.joysticks.right().getMagnitude() > 0.5;
    }, // precondition #2
    () -> {
        return gamepad.joysticks.left().getMagnitude() > 0.5;
    }));
    // implementation, but yeah.
    while (true) {
        pathfinder.tick();
    }
}