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56 lines
3.3 KiB
Markdown
56 lines
3.3 KiB
Markdown
# BedrockData
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Blobs of data generated from Minecraft: Bedrock Edition used by PocketMine-MP
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## canonical_block_states.nbt
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This file contains an ordered list of `TAG_Compound`s (in varint NBT format) representing the pre-agreed blockstates in MCPE.
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The runtime ID of a state is the offset in the list that the state appears.
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The contents of this file are extracted from the vanilla BDS using [`pmmp/mapping`](https://github.com/pmmp/mapping).
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## block_id_map.json
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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).
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#### Note
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Where a block's legacy ID is > 255, its item ID is `255 - legacyBlockId`. This means prismarine stairs = -2 and so on.
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## r12_to_current_block_map.bin
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This file contains a list of mappings from legacy pre-1.13 blockstates to states of the current version.
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This data is obtained by plugging the legacy states into `BlockPalette` in the vanilla BDS using [`pmmp/mapping`](https://github.com/pmmp/mapping), and writing the resulting NBT state obtained.
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#### Schema
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The following structure is repeated until EOF. There is **no** length prefix, so you have to read to EOF to read all the mappings.
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| type | description |
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|------|-------------|
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| unsigned varint32 | r12 block string ID length |
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| byte[] | r12 block string ID |
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| little-endian int16 | r12 block metadata |
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| TAG_Compound (varint format) | current version NBT blockstate corresponding to the given r12 block |
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An example of how to read this file using the PocketMine-MP core library can be seen on the [stable branch](https://github.com/pmmp/PocketMine-MP/blob/41f7c07703bf3f7ef2d9504bbdbdf74257e75d12/src/pocketmine/network/mcpe/convert/RuntimeBlockMapping.php#L71-L86) or on the [master branch](https://github.com/pmmp/PocketMine-MP/blob/master/src/network/mcpe/convert/RuntimeBlockMapping.php#L74-L86).
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## r16_to_current_block_map.json
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This file contains mappings to translate pre-1.16.100 item IDs into post-1.16.100 item IDs.
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It contains two structures:
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- `simple`: these are 1:1 replacement IDs (e.g. `carrotonastick` was renamed to `carrot_on_a_stick`)
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- `complex`: these are items that were previously metadata values on other items (e.g. `dye:4` is now represented by `lapis_lazuli`).
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## item_id_map.json
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This file contains a mapping of all item stringy IDs to legacy numeric IDs.
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## banner_patterns.json
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This file defines all the known banner pattern types and their crafting requirements.
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## recipes.json
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This file defines all crafting-table, furnace and chemistry recipes. This includes recipes for the smoker, cartography table etc.
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## creativeitems.json
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This file contains an ordered list of items which appear in the vanilla creative inventory with Education Edition and Experimental Gameplay enabled.
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## biome_definitions.nbt
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This file contains a network-format NBT blob containing biome definitions obtained from `BiomeDefinitionListPacket`.
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## biome_id_map.json
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This file contains a mapping of Minecraft string biome IDs to their legacy integer ID counterparts. While biome IDs aren't dynamic yet, it's expected they will become dynamic in the future.
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## entity_identifiers.nbt
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This file contains a network-format NBT blob containing entity identifier mappings obtained from `AvailableActorIdentifiersPacket`.
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