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Documentation update
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doc/protocol.txt
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doc/protocol.txt
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Minetest-c55 protocol (incomplete, early draft):
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Updated 2011-06-18
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A custom protocol over UDP.
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Initialization:
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- A dummy reliable packet with peer_id=PEER_ID_INEXISTENT=0 is sent to the server:
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- Actually this can be sent without the reliable packet header, too, i guess,
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but the sequence number in the header allows the sender to re-send the
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packet without accidentally getting a double initialization.
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- Packet content:
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# Basic header
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u32 protocol_id = PROTOCOL_ID = 0x4f457403
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u16 sender_peer_id = PEER_ID_INEXISTENT = 0
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u8 channel = 0
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# Reliable packet header
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u8 type = TYPE_RELIABLE = 3
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u16 seqnum = SEQNUM_INITIAL = 6550
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# Original packet header
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u8 type = TYPE_ORIGINAL = 1
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# And no actual payload.
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- Server responds with something like this:
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- Packet content:
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# Basic header
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u32 protocol_id = PROTOCOL_ID = 0x4f457403
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u16 sender_peer_id = PEER_ID_INEXISTENT = 0
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u8 channel = 0
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# Control packet header
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u8 type = TYPE_CONTROL = 0
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u8 controltype = CONTROLTYPE_SET_PEER_ID = 1
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u16 peer_id_new = assigned peer id to client (other than 0 or 1)
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@ -346,6 +346,9 @@ TODO: Add a per-sector database to store surface stuff as simple flags/values
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- Surface ground type
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- Trees?
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TODO: Restart irrlicht completely when coming back to main menu from game.
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- This gets rid of everything that is stored in irrlicht's caches.
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Making it more portable:
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------------------------
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