=============================
-Minetest World Format 22...25
+Minetest World Format 22...27
=============================
This applies to a world format carrying the block serialization version
-22...25, used at least in
+22...27, used at least in
- 0.4.dev-20120322 ... 0.4.dev-20120606 (22...23)
- 0.4.0 (23)
- 24 was never released as stable and existed for ~2 days
+- 27 was added in 0.4.15-dev
The block serialization version does not fully specify every aspect of this
format; if compliance with this format is to be checked, it needs to be
Format (since 0.4.13) of password hash is #1#<salt>#<verifier>, with the
parts inside <> encoded in the base64 encoding.
-<verifier> is an RFC 5054 compatible SRP-2048-SHA1 verifier
-of the given salt, password, and the player's name lowercased.
+<verifier> is an RFC 2945 compatible SRP verifier,
+of the given salt, password, and the player's name lowercased,
+using the 2048-bit group specified in RFC 5054 and the SHA-256 hash function.
Example lines:
- Player "celeron55", no password, privileges "interact" and "shout":
directly decompress.
u8 version
-- map format version number, this one is version 22
+- map format version number, see serialisation.h for the latest number
u8 flags
- Flag bitmasks:
- 0x02: day_night_differs: Whether the lighting of the block is different
on day and night. Only blocks that have this bit set are updated when
day transforms to night.
- - 0x04: lighting_expired: If true, lighting is invalid and should be
- updated. If you can't calculate lighting in your generator properly,
- you could try setting this 1 to everything and setting the uppermost
- block in every sector as is_underground=0. I am quite sure it doesn't
- work properly, though.
+ - 0x04: lighting_expired: Not used in version 27 and above. If true,
+ lighting is invalid and should be updated. If you can't calculate
+ lighting in your generator properly, you could try setting this 1 to
+ everything and setting the uppermost block in every sector as
+ is_underground=0. I am quite sure it doesn't work properly, though.
- 0x08: generated: True if the block has been generated. If false, block
is mostly filled with CONTENT_IGNORE and is likely to contain eg. parts
of trees of neighboring blocks.
+u16 lighting_complete
+- Added in version 27.
+- This contains 12 flags, each of them corresponds to a direction.
+- Indicates if the light is correct at the sides of a map block.
+ Lighting may not be correct if the light changed, but a neighbor
+ block was not loaded at that time.
+ If these flags are false, Minetest will automatically recompute light
+ when both this block and its required neighbor are loaded.
+- The bit order is:
+ nothing, nothing, nothing, nothing,
+ night X-, night Y-, night Z-, night Z+, night Y+, night X+,
+ day X-, day Y-, day Z-, day Z+, day Y+, day X+.
+ Where 'day' is for the day light bank, 'night' is for the night
+ light bank.
+ The 'nothing' bits should be always set, as they will be used
+ to indicate if direct sunlight spreading is finished.
+- Example: if the block at (0, 0, 0) has
+ lighting_complete = 0b1111111111111110,
+ then Minetest will correct lighting in the day light bank when
+ the block at (1, 0, 0) is also loaded.
+
u8 content_width
- Number of bytes in the content (param0) fields of nodes
if map format version <= 23:
zlib-compressed node metadata list
- content:
+if map format version <= 22:
u16 version (=1)
u16 count of metadata
foreach count:
u16 position (p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X)
u16 type_id
u16 content_size
- u8[content_size] (content of metadata)
+ u8[content_size] content of metadata. Format depends on type_id, see below.
+if map format version >= 23:
+ u8 version (=1) -- Note the type is u8, while for map format version <= 22 it's u16
+ u16 count of metadata
+ foreach count:
+ u16 position (p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X)
+ u32 num_vars
+ foreach num_vars:
+ u16 key_len
+ u8[key_len] key
+ u32 val_len
+ u8[val_len] value
+ serialized inventory
- Node timers
if map format version == 23:
--------------------
The mapping maps node content ids to node names.
-Node metadata format
----------------------
+Node metadata format for map format versions <= 22
+---------------------------------------------------
+The node metadata are serialized depending on the type_id field.
1: Generic metadata
serialized inventory
projects / minetest.git / blobdiff