WorldInfo displays information about the world around you on your HUD.
Currently there is support for only Blocks and Entities, and mods can add their own handlers as well.
WorldInfo is a mod for the Rift Modloader and needs Rift to work, not Forge!
1.13.2 versions require Chocohead's fork of Rift!
Old source code can be found at https://github.com/UpcraftLP/Rift-WorldInfo/