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Message |
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| 14:13 |
tech_exorcist |
hello |
| 14:13 |
tech_exorcist |
i'm struggling to understand TOCLIENT_BLOCKDATA |
| 14:14 |
tech_exorcist |
TOCLIENT_ADDNODE is well-documented and the coordinates make sense, so i tried to read them the same way from TOCLIENT_BLOCKDATA |
| 14:16 |
tech_exorcist |
but if the first 6 bytes after the TOCLIENT_BLOCKDATA command (0x0020) are a v3s16 with the coordinates as in ADDNODE, why do i get coords like (-7, 0, -3) when i'm at around -60, 2, 15? |
| 14:16 |
tech_exorcist |
actually let me check |
| 14:17 |
tech_exorcist |
at (-162, 14, 71) the server seemingly sent a BLOCKDATA with coords (-12, 2, 3), and render distance isn't that high |
| 14:17 |
tech_exorcist |
it was 110 |
| 14:23 |
tech_exorcist |
both the client and the server are running 5.6.1 on debian |
| 14:35 |
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| 15:44 |
sfan5 |
tech_exorcist: a block is 16x16x16 |
| 15:44 |
sfan5 |
thus the positions are numerically smaller, they would match when you translate them to node positions |
| 15:47 |
tech_exorcist |
i see |
| 15:48 |
tech_exorcist |
thanks |
| 15:48 |
tech_exorcist |
and another question |
| 15:48 |
tech_exorcist |
what exactly is the data that follows the coordinates? |
| 15:49 |
sfan5 |
dunno, check the protocol docs |
| 15:49 |
sfan5 |
probably the encoded mapblock |
| 15:50 |
tech_exorcist |
it seems to be zstd, but i can't find a zstd decompressor that will decompress it |
| 15:50 |
tech_exorcist |
the protocol docs don't say anything about TOCLIENT_BLOCKDATA |
| 15:50 |
tech_exorcist |
https://github.com/minetest/minetest/blob/5.6.1/src/network/networkprotocol.h#L279 |
| 15:51 |
tech_exorcist |
TOCLIENT_ADDNODE below says it's a "serialized mapnode", but it doesn't seem to match doc/world_format.txt in the "The blob" section, which is the only thing i could find about serialization |
| 15:55 |
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| 16:08 |
sfan5 |
you'll have to search the code then |
| 16:08 |
sfan5 |
the mapblock format is documented in world_format.txt |
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