我的 AndEngine onLoadResources() 似乎效率不高
我正在使用 AndEngine 创建动态壁纸。然而，在我的 onLoadResources() 方法中，我当前正在加载 3 个不同的纹理：
@Override
public void onLoadResources() {
prefs = PhysicsWallpaperActivity.this.getSharedPreferences(SHARED_PREFS_NAME, 0);
prefs.registerOnSharedPreferenceChangeListener(this);
this.mAutoParallaxBackgroundTexture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
this.mAutoParallaxImage1Texture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
this.mAutoParallaxImage2Texture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
this.mParallaxLayerBackground = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "background.jpg", 0, 0);
this.mParallaxLayerImage1 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxImage1Texture, this, "image1.jpg", 0, 0);
this.mParallaxLayerImage2 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxImage2Texture, this, "image2.png", 0, 800);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxBackgroundTexture);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxImage1Texture);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxImag2Texture);
}
我觉得这不是最有效的方法。但是，如果我的所有 BitmapTextureAtlasTextureRegionFactorys“图像”仅指向一个 BitmapTextureAtlas，并且这些“图像”位于相同的坐标，则即使我只调用其中 1 个，这些图像也会一起加载到彼此之上。
该问题的一个示例如下：
@Override
public void onLoadResources() {
prefs = PhysicsWallpaperActivity.this.getSharedPreferences(SHARED_PREFS_NAME, 0);
prefs.registerOnSharedPreferenceChangeListener(this);
this.mAutoParallaxBackgroundTexture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
this.mParallaxLayerBackground = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "background.jpg", 0, 0);
this.mParallaxLayerImage1 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "image1.jpg", 0, 0;
this.mParallaxLayerImage2 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "image2.png", 0, 800);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxBackgroundTexture);
}
^ 我希望使用这样的代码，因为它看起来更有效，但“image1”和“image2”会自动加载到彼此之上，即使我只调用其中的 1 个。
我这样做的方式正确吗？或者有更有效的方法吗？
I'm using AndEngine to create a live wallpaper. However, in my onLoadResources() method I am currently loading 3 different textures:
@Override
public void onLoadResources() {
prefs = PhysicsWallpaperActivity.this.getSharedPreferences(SHARED_PREFS_NAME, 0);
prefs.registerOnSharedPreferenceChangeListener(this);
this.mAutoParallaxBackgroundTexture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
this.mAutoParallaxImage1Texture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
this.mAutoParallaxImage2Texture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
this.mParallaxLayerBackground = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "background.jpg", 0, 0);
this.mParallaxLayerImage1 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxImage1Texture, this, "image1.jpg", 0, 0);
this.mParallaxLayerImage2 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxImage2Texture, this, "image2.png", 0, 800);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxBackgroundTexture);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxImage1Texture);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxImag2Texture);
}
I feel like this is not the most efficient way to do this. But if I have all my BitmapTextureAtlasTextureRegionFactorys 'images' pointing to just a single BitmapTextureAtlas, and those 'images' are at the same coordinates, the images will load together on top of each other even if I only call 1 of them.
An example of the problem is here:
@Override
public void onLoadResources() {
prefs = PhysicsWallpaperActivity.this.getSharedPreferences(SHARED_PREFS_NAME, 0);
prefs.registerOnSharedPreferenceChangeListener(this);
this.mAutoParallaxBackgroundTexture = new BitmapTextureAtlas(2048, 2048, TextureOptions.DEFAULT);
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
this.mParallaxLayerBackground = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "background.jpg", 0, 0);
this.mParallaxLayerImage1 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "image1.jpg", 0, 0;
this.mParallaxLayerImage2 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "image2.png", 0, 800);
this.mEngine.getTextureManager().loadTexture(this.mAutoParallaxBackgroundTexture);
}
^ I would have liked to use the code like this because it seems more efficient, but 'image1' and 'image2' automatically load on top of each other even if I only call 1 of them.
Am I doing this the right way? Or is there a more efficient way?
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您的纹理可以包含不止一种资源。把它想象成一个精灵表。或者就像将照片粘到一张大白纸上。您不需要为每个纹理区域创建新纹理。例如：
假设您有一个 250x250 像素的星星图像和一个 100x100 像素的宇宙飞船图像。您可以将它们放在尺寸为 512x256 的纹理上。
您在 0, 0 处为星星 (250x250) 创建一个纹理区域。
然后在 251, 0 处为宇宙飞船创建第二个纹理区域。
在这种情况下，如果其他图像足够小以容纳的话，仍然有一些剩余区域可供其他图像使用。下图显示了如果您可以在内存中看到纹理，它会是什么样子。
希望这会有所帮助。
Your textures can contain more than one resource. Think of it like a sprite sheet. or like gluing photos to a big white sheet of paper. you do not need a new texture for each texture region. For example:
Say you have a star image, that is 250x250 pixels and a spaceship image that is 100x100 pixels. You could put both of these on a texture that measure 512x256.
You create a texture region for the star(250x250) at 0, 0.
Then create a second texture region for the spaceship at 251, 0.
In that scenario there is still some leftover area for other images blow the spaceship, if they are small enough to fit. The Image below shows how your texture would look if you could see it in memory.
Hope this helps.
你的纹理很大！您确定需要那么大吗？
Your Textures are huge! Are you very sure you need them that big?