Java Swing-将一个活动从孩子转到父母而没有存储父母的孩子
我正在Java挥杆中制作游戏，并且遇到了一个问题，我需要向我的UI类发出信号mainWindow（其中包含GameLogic的实例）播放器已经升级，需要显示适当的UI。
正如我在上面提到的，MainWindow包含一个GameLogic的实例，并且其名称意味着它负责更新和维护游戏。当播放器升级时，我想调用mainWindow可以处理的事件。我该如何实现？
我想避免在GameLogic中存储MainWindow实例的引用，因为当我使用GSON进行保存时，这可能会导致问题。我尝试简单地让GameLogic扩展了ActionEvent，但我认为这不是正确的途径，因为我需要在GameLogic中调用作为ActionEventsuper，但actionEvent需要一个非编号source不能为gameLogic正在构造尚不可用，但是没有其他对象实例在那里使用是有意义的。
我想到的另一种方法是在GameLogic中仅具有ActionEvent的实例？
在这一点上，我意识到这可能已经做了很多事情，因此最好求助于尝试和测试的解决方案，所以我在这里。我会感谢一般建议或链接到探索和解决此特定问题的网站的链接。
I'm making a game in Java Swing and I've come across an issue where I need to signal to my UI class MainWindow (that contains an instance of GameLogic) that the player has leveled up and that it needs to display the appropriate UI.
As I mentioned above MainWindow contains an instance of GameLogic and as its name implies it is responsible for updating and maintaining the game. When the player levels up I want to invoke an Event which the MainWindow can handle. How can I make this happen?
I want to avoid storing the MainWindow instance's reference in GameLogic as that could lead to problems when I'm deserializing a save using Gson. I tried simply having GameLogic extend ActionEvent, but I don't think that's a correct path to take as I'd need to call ActionEvent's constructor within GameLogic as super but ActionEvent requires a non-null source which can't be GameLogic as it is being constructed so this isn't yet usable, but no other Object instance would make sense to be used there.
Another approach I thought of was just having an instance of ActionEvent within GameLogic but how would I set its actionListener to MainWindow without storing a reference for it?
At this point I realized that this was probably already done a lot, so it's better to resort to tried and tested solutions, so here I am. I'd appreciate general advice or links to sites where this specific issue is explored and solved/explained.
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