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| author | Perttu Ahola <celeron55@gmail.com> | 2012-03-22 16:12:33 +0200 |
|---|---|---|
| committer | Perttu Ahola <celeron55@gmail.com> | 2012-03-22 16:12:33 +0200 |
| commit | 424b36d469e99d5d1bd9bb136477d0dc442376dd (patch) | |
| tree | 2735c4deceff3960523c8f8d3a0683334f1e081b /doc/mapformat.txt | |
| parent | 8070f9485b41611462087798f35a589ab5014078 (diff) | |
| download | minetest-424b36d469e99d5d1bd9bb136477d0dc442376dd.tar.gz minetest-424b36d469e99d5d1bd9bb136477d0dc442376dd.tar.bz2 minetest-424b36d469e99d5d1bd9bb136477d0dc442376dd.zip | |
Describe format of nodes in doc/mapformat.txt
Diffstat (limited to 'doc/mapformat.txt')
| -rw-r--r-- | doc/mapformat.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/mapformat.txt b/doc/mapformat.txt index fd892c9db..db1619865 100644 --- a/doc/mapformat.txt +++ b/doc/mapformat.txt @@ -271,6 +271,7 @@ zlib-compressed node data: u8[4096]: param0 fields u8[4096]: param1 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 - content: @@ -316,6 +317,22 @@ foreach num_name_id_mappings 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 --------------------- |