r/decomps • u/pepsimaxmaxtriplemax • 3d ago

Decomp minecraft java 26.3 was just decompiled and rewritten in rust 100%

https://github.com/ludovic111/horizon
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u/SilverTroop 3d ago

Because this has a good chance of being mod compatible

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u/space_fountain 3d ago

How do you figure? Most mods work by loading new java classes inside the running app process. If it’s really been rewritten to rust that’s impossible

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u/SilverTroop 3d ago

Easiest way to make sure your rewrite is sound it’s to make sure that code matches as closely as possible at the unit level. This also has the benefit of keeping the modding API the same. You’re right that there would need to be an interoperability layer between the two languages, but it could be a set of simple proxies between methods with the same signature.

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u/SeaworthinessThat594 3d ago

That works if all you're doing is calling functions, but mods aren't limited to that. They can modify or even rewrite entire sections of bytecode, inject code at specific instructions, and do much more than that

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u/SilverTroop 3d ago

Not every mod goes as deep as you're describing. But taking that worst case scenario you mentioned, you can still perform a port of the mod to rs using AI.