This file contains a mapping of all block stringy IDs to legacy numeric IDs (which are still used internally, and still needed by third party developers for conversion and for items).
#### Note
Where a block's legacy ID is > 255, its item ID is `255 - legacyBlockId`. This means prismarine stairs = -2 and so on.
### `item_id_map.json`
This file contains a mapping of all item stringy IDs to legacy numeric IDs.
### `banner_patterns.json`
This file defines all the known banner pattern types and their crafting requirements.
### `recipes.json`
This file defines all crafting-table, furnace and chemistry recipes. This includes recipes for the smoker, cartography table etc.
#### Note
Brewing recipes are **not** included because Mojang don't see fit to send these over network.
### `creativeitems.json`
This file contains an ordered list of items which appear in the vanilla creative inventory with Education Edition and Experimental Gameplay enabled.