Is there an alternative for GeometryBatchFactory to where I can edit individual blocks without having to reload the whole thing every time a block is edited?
You mean a MinecraftWorldFactory?
There is no such thing.
This is a common pitfall to start to make a Minecraft clone by stacking cubes.
Minecraft is not based on stacking cubes, it’s based on mesh editing.
When you “add/remove a cube” you have to edit the underlying mesh.
This can help https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:advanced:custom_meshes
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