In total it doesn't (yet) reduce the lines of code (though there is also some other changes adding code here), but makes adding single rewriter calls to a range of protocols much easier than having to individually check an ever increasing number of classes. This also moved Protocol#registerPackets until after mappings have been loaded (which makes onMappingDataLoaded redundant for now, but will become relevant later again)
Nassim Jahnke
8f8f5e72c0