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Describe format of nodes in doc/mapformat.txt

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Perttu Ahola 2012-03-22 16:12:33 +02:00
parent 8070f9485b
commit 424b36d469
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doc/mapformat.txt
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@ -271,6 +271,7 @@ zlib-compressed node data:
u8[4096]: param0 fields u8[4096]: param0 fields
u8[4096]: param1 fields u8[4096]: param1 fields
u8[4096]: param2 fields u8[4096]: param2 fields
- The location of a node in each of those arrays is (z*16*16 + y*16 + x).
zlib-compressed node metadata list zlib-compressed node metadata list
- content: - content:
@ -316,6 +317,22 @@ foreach num_name_id_mappings
EOF. EOF.
Format of nodes
----------------
A node is composed of the u8 fields param0, param1 and param2.
The content id of a node is determined as so:
- If param0 < 0x80,
content_id = param0
- Otherwise
content_id = (param0<<4) + (param2>>4)
The purpose of param1 and param2 depend on the definition of the node.
The name-id-mapping
--------------------
The mapping maps node content ids to node names.
Node metadata format Node metadata format
--------------------- ---------------------