JavaFX 2. How to stop or pause all animations? - javafx

Question

I am working on creating a small game.
I use scene switching (scene with a main game's screen and scene with some Help information). So, I decided to use HashMap scenes and set all scenes there. And clicking the button "Help" causes the scene switching.
But I have an issue. I want to stop all animations on non-active scene and currently I just set scene as NULL. I know that it is very bad realization.
Could somebody help me and also explain how to pause or stop all animations on scene?
Setting scene on primaryStage:
public static void setSceneToStage(String sceneId, Stage stage) {
SceneCollection.instance().clearCurrentActiveScene();
SceneCollection.instance().setNewActiveScene(sceneId);
stage.setScene(SceneCollection.instance().getScene(sceneId));
stage.setTitle(sceneId);
}
Clearing non-active scene:
public void clearCurrentActiveScene() {
if(activeScene != null) {
scenes.get(activeScene).clearScene();
}
}
public void clearScene() {
scene = null;
}
Initialize new scene:
public void setNewActiveScene(String sceneId) {
activeScene = sceneId;
scenes.get(sceneId).init();
}
public void init() {
scene = new Scene(new Pane(), 300, 300);
}

Answer 1

I think your program has to have a structure that you can have access to all transitions at time, for example you can have ''TransitonManager Class'' and in that class you have a arraylist of transitions and then you can add this transitions to that in their constructors and then when ever you want , you can have access to all transitions and stop them.
class TransitionManger{
public static ArrayList<Transition> transitions = new ArrayList<>();
}
class CustomTransition extends Transition{
CustomTransition(){
TransitionManger.transitions.add(this);
}
#Override
protected void interpolate(double v) {
//todo do what you want
}
}
you can also use singleton design pattern for TransitionManger for better encapsulation.