Libgdx未能畫出精靈

我想用LibGDX繪製精靈很困難，但我失敗了。如果你需要更多的片段，來源如下：https://github.com/reisi007/Planes2DLibGDX/blob/master/Main/src/com/reisisoft/Planes2D/Planes2D.java Libgdx未能畫出精靈

那麼，我在做什麼？我正在加載一個PNG（1024x1024）並創建精靈，我把它放在一個地圖。這個地圖我把地圖再（後來不同的分辨率）

private void putTextures(Resolutions resolutions) { 
    Map<GObjects, Sprite> map; 
    switch (resolutions) { 
     case MidRes: 
      map = new EnumMap<GObjects, Sprite>(GObjects.class); 
      map.put(GObjects.PlaneR, new Sprite(txtMidRes, 0, 0, 600, 278)); 
      map.put(GObjects.PlaneG, new Sprite(txtMidRes, 0, 278, 600, 278)); 
      map.put(GObjects.PlaneB, new Sprite(txtMidRes, 0, 556, 600, 104)); 
      map.put(GObjects.Grass, new Sprite(txtMidRes, 0, 834, 600, 104)); 
      map.put(GObjects.Bullet, new Sprite(txtMidRes, 600, 834, 299, 138)); 
      all.put(Resolutions.MidRes, map); 
      break; 
    } 
}

有一個功能我從當前分辨率的精靈：

private boolean setCurrentResolutions(Resolutions resolution) { 
    if (resolution == null) 
     return false; 
    currentResolution = resolution; 
    currentResolutionSprites = all.get(Resolutions.MidRes); 
    return true; 
} 

private Sprite requestSprite(GObjects gObject) { 
    return currentResolutionSprites.get(gObject); 
}

我測試了WINOWS建設，偉馳大小800X480。我想提請精靈的起源是：X 300.0Ÿ139.0 寬度300，高度是140。接下來的渲染功能：

public void render() { 
    camera.update(); 
    spriteBatch.setProjectionMatrix(camera.combined); 
    Update(); 
    spriteBatch.begin(); 
    Draw(); 
    spriteBatch.end(); 
}

，因爲這不是真正的幫助，這裏的Draw方法：

public void Draw() { 
    s.draw(spriteBatch); 
}

我看到的只是黑色。我試圖用OpenGL 1,1.1,2和各種解決方案，從StackOverflow的

最後的「創造」的方法：

// On creation 
public void create() { 
    curH = Gdx.graphics.getHeight(); 
    curW = Gdx.graphics.getWidth(); 
    camera = new OrthographicCamera(curW, curH); 
    spriteBatch = new SpriteBatch(); 
    // Load texture 
    txtMidRes = new Texture(Gdx.files.internal("planes.png")); 
    txtMidRes.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Linear); 
    // Create Sprites for EVERY supported resolution 
    putTextures(Resolutions.MidRes); 
    // Set resolution according to H/W 
    setCurrentResolutions(Resolutions.MidRes); 
    s = requestSprite(GObjects.PlaneR); 
    s.setSize(300, 140); 
    s.setPosition(Gdx.graphics.getWidth()/2 - s.getWidth()/2, 
      Gdx.graphics.getHeight()/2 - s.getHeight()/2); 
}

感謝您的幫助所有的

弗洛裏安

來源

2014-02-15 Florian Reisinger