Grog! adds a tankard ,allowing you to drink grog, and grog barrel allowing you to refill your tankard
The resource pack is highly recommended, but is not entirely needed for the pack to function

/function grog:givegrog to get a filled tankard
/function grog:summongrogbarrel_ to summon barrel (fill blank with facing direction)
/function grog:removegrogbarrel to remove nearest barrel

Because of 1.20.5 changes to commands, the pack won't work in newer versions (1.20.5+)
Version 3 of the pack might be released with more features and a version for new minecraft updates

Unzip both Datapack and Resource pack

This pack does NOT endorse alcoholism

Updates:
V2: I tinkered with the drinking system, now you won't get drunk from non-grog beverages, that's my bad for forgetting to fix that
V2.1: I tested it in multiplayer for the first time and it was completely broken, now it's fixed