You either need Recifenses table that works for 1.12.2, or you need to roll your own to get the pPlayer, pRegion and... pState? pointers (I think those are the three I use).
You can find his table on his Patreon, or on the first post when he releases it here.
How to use this cheat table?
- Install Cheat Engine
- Double-click the .CT file in order to open it.
- Click the PC icon in Cheat Engine in order to select the game process.
- Keep the list.
- Activate the trainer options by checking boxes or setting values from 0 to 1