Triggering the dialog by pressing the F key

public class TriggerDialogComponent extends Component {

    @Override
    public void create() {
        entity.getEvents().addListener("collisionStart", this::onCollisionStart);
        entity.getEvents().addListener("collisionEnd", this::onCollisionEnd);
    }

    private void onCollisionEnd(Fixture me, Fixture other) {

        if (!PhysicsLayer.contains(targetLayer, other.getFilterData().categoryBits)) {
            // Doesn't match our target layer, ignore
            return;
        }
        npcInteractionDisplay.hideInteractionPrompt();
        Stage stage = ServiceLocator.getRenderService().getStage();
        if (listener != null) {
            stage.removeListener(listener);
        }

    }

    private void onCollisionStart(Fixture me, Fixture other) {
        if (!PhysicsLayer.contains(targetLayer, other.getFilterData().categoryBits)) {
            // Doesn't match our target layer, ignore
            return;
        }
        npcInteractionDisplay.showInteractionPrompt();
        Stage stage = ServiceLocator.getRenderService().getStage();
        listener = new InputListener() {
            @Override
            public boolean keyDown(InputEvent event, int keycode) {
                if (keycode == Input.Keys.F) {
                    // TODO add trigger dialog
                    switch (name) {
                        case Zoe -> {
                            try {
                                npcInteractionDisplay.interactWithZoe();
                            } catch (IOException e) {
                                throw new RuntimeException(e);
                            }
                        }
                        case Metis -> {
                            try {
                                npcInteractionDisplay.interactWithMetis();
                            } catch (IOException e) {
                                throw new RuntimeException(e);
                            }
                        }
                        case Doris -> {
                            npcInteractionDisplay.interactWithDoris();
                        }
                    }
                }
                return false;
            }
        };
        stage.addListener(listener);
    }
}

In order to achieve the function of triggering the dialog by pressing the f key close to the user, i do it by using the collision event. I added two events onCollisionStart and onCollisionEnd. When the player collides with the NPC, the onCollisionStart event will be triggered, and a key listener will be created to monitor whether the player presses the F key. And when the player is far away from the NPC, the key listener will be removed.