2022-04-11 18:27:15 +00:00
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{% extends "konami.html" %}
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2022-01-17 22:10:57 +00:00
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{% block body %}
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<p>Why?</p>
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<p>I was curious how these APIs work, yet could find little to nothing on Google. There are a number of
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closed-source projects, with presumably similarly closed-source internal documentation, and a scattering of
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implementations of things, yet I couldn't find a site that actually just documents how the API works. If I'm
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going to have to reverse engineer an open source project (or a closed source one, for that matter), I might as
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well just go reverse engineer an actual game (or it's stdlib, as most of my time has been spent currently).</p>
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<p>For the sake of being lazy, I'll probably end up calling it eAmuse more than anything else throughout these
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pages. Other names you may come across include <code>httpac</code> and <code>xrpc</code>*. The former is the
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suite of HTTP functions used in the Bemani stdlib, and the latter then name of their communication protocol they
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implement at the application layer, but whenever someone refers to any of them in the context of a rhythm game,
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they will be referring to the things documented here.<br />
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<small style="margin-left: 8px">*I believe <code>xrpc</code> is the officialy used name for the protocol.</small>
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</p>
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<p>These pages are very much a work in progress, and are being written <i>as</i> I reverse engineer parts of the
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protocol. I've been asserting all my assumptions by writing my own implementation as I go, however it currently
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isn't sharable quality code and, more importantly, the purpose of these pages is to make implementation of one's
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own code hopefully trivial (teach a man to fish, and all that).</p>
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<p>Sharing annotated sources for all of the games' stdlibs would be both impractical and unwise. Where relevant
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however I try to include snippets to illustrate concepts, and have included their locations in the source for if
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you feel like taking a dive too.</p>
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<p>If you're here because you work on one of those aforementioned closed source projects, hello! Feel free to share
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knowledge with the rest of the world, or point out corrections. Or don't; you do you.</p>
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{% endblock %}
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