PolyMaps

The PolyMap is what stores all the polys that PolyMc uses. These Polys in turn define how different things are transformed. By default, PolyMc will generate a single PolyMap using the PolyRegistry. This acts as a builder for the PolyMap. You can add stuff to the PolyRegistry via the registerPolys method in your entrypoint.

After the entrypoint is called, PolyMc will iterate the registries and attempt to auto generate polys for anything that doesn't have them.

Custom PolyMaps

You can actually assign different PolyMaps to different players. The PolyMap used for a player is determined by the PolyMapProvider.EVENT event.

example

PolyMapProvider.EVENT.register(player -> {
        if (isSpecial(player)) {
            return MY_SPECIAL_POLYMAP;
        } else {
            return null;
        }
});

Using this feature you can also completely disable PolyMc for a player. This is done by returning a NOPPolyMap. Other uses for this include, for example, a PolyMap that doesn't use a resource pack. Simply instantiate a new PolyRegistry, somehow make sure none of the polys use resource packs, build the PolyMap from the registry, and then you're good to go.