問題描述

我正在為我的游戲創建關卡編輯器，但我在使用帶有 JFrame 的 LwjglCanvas 時遇到了問題.我使用 JFrame(不是 LwjglFrame)來保持引擎和關卡編輯器盡可能獨立.我有兩個 JAR:WorldEditor.jar 和 GameEngine.jar.在 WorldEditor 中，我有一個名為test"的按鈕，假設加載 GameEngine.jar(如果尚未加載)并啟動(如果已加載則重新啟動)到應用程序主框架中.實際上，我所做的是將 WorldEditor 游戲容器(例如 JFrame 內的 JPanel)注入游戲應用程序，并使用 Gdx.app.postRunnable 將 lwjglcanvas 添加到注入的游戲容器中:

I'm creating a level editor for my game, and I ave a problem using LwjglCanvas with a JFrame. I use a JFrame (not a LwjglFrame) to keep engine and level editor as independent as possible. I have two JARs: WorldEditor.jar, and GameEngine.jar. Inside WorldEditor, I have a button called "test", that is suppose to load GameEngine.jar (if not already loaded) and launch (resart it if already loaded) it into the application main frame. Actually, what I do is injecting the WorldEditor game container (a JPanel inside the JFrame for example) to the game app, and use Gdx.app.postRunnable to add the lwjglcanvas to the injected game container :

世界編輯端:

JPanel _gameContainer = new JPanel(); // is inside a JFrame
MyGame game = loadGame(_gameContainer); // load the GameEngine JAR, and retrive the game

GameEngine 方面:

GameEngine side:

// container is the _gamecontainer of above
public void createGame(final Container gameContainer)  
{
    LwjglCanvas canvas = new LwjglCanvas(myapp, myconfig);
    Gdx.app.postRunnable(new Runnable()
    {
       public void run()
       {
           gameContainer.add(canvas.getCanvas());
       }
    });
}

事實是 postRunnable 從未被調用(由于應用程序在可見之前不可見，我錯了嗎?)我已經嘗試了很長時間，但沒有結果......

The fact is that the postRunnable is never called (due to the fact that the app doesn't before being visible, am I wrong ?) I have been trying for a long time but no result ...

有人知道我可以做些什么來解決這個問題嗎?或者至少是另一種(讓我們說更簡單)的方法來做到這一點?

Does someone have an idea of what I could do to fix this problem ? Or a least another (let's say easier) method to do that ?

推薦答案

你必須使用 SwingUtilites.invokelater 因為 postRunnable 發布到沒有運行的游戲循環.我會嘗試從 MyGame 獲取一個組件并添加它.如果你返回一個組件，你就沒有一個 dep.到 LwjglCanvas.這不是很好，因為現在 MyGame 界面有一個 dep.揮桿，但值得一試，看看它是否能解決你的問題.

You have to use SwingUtilites.invokelater because postRunnable posts to the game loop which is not running. I would try to get a Component from MyGame and add this. If you return a Component you don't have a dep. to the LwjglCanvas. It's not that nice because now the MyGame Interface has a dep. to swing but it's worth a shot to see if its solves your problem.

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