Felo 的执行步骤很有趣，它先预设了不同用户对象，并生成相应的故事线大纲，你可以修改或删除某页大纲，也可以生成新的大纲：
Why managers (TEXTURE_MANAGER, MATERIAL_MANAGER, FONT_MANAGER, NET_MANAGER)? Because everything runs in a loop, and there are few good ways to persist state between iterations. Back in Clayquad, you had three options for images: always loaded, loaded every frame, or build your own caching system. Ply's managers handle all of that in the background. Tell the engine where your image is, it handles caching, eviction, and lifetime. The same pattern applies to materials, fonts, and network requests. All simplifying memory across frames so you never think about it.
。关于这个话题，新收录的资料提供了深入分析
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