doc update
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Perttu Ahola
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@ -56,6 +56,10 @@ Compiling on GNU/Linux:
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- Neither of which can probably be found from your distro's repository.
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- Compiling each of them should be fairly unproblematic, though.
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Compiling on Windows:
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- Be sure to
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#define JMUTEX_CRITICALSECTION
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in jmutex.h before compiling it. Otherwise mutexes will be very slow.
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License of Minetest-c55
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-----------------------
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62
src/main.cpp
62
src/main.cpp
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@ -19,6 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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/*
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=============================== NOTES ==============================
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NOTE: Things starting with TODO are sometimes only suggestions.
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NOTE: VBO cannot be turned on for fast-changing stuff because there
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is an apparanet memory leak in irrlicht when using it (not sure)
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@ -64,14 +65,13 @@ TODO: - Scripting
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SUGGESTION: Modify client to calculate single changes asynchronously
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TODO: Moving players more smoothly. Calculate moving animation from
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data sent by server.
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TODO: Moving players more smoothly. Calculate moving animation
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in a way that doesn't make the player jump to the right place
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immediately when the server sends a new position
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TODO: There are some lighting-related todos and fixmes in
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ServerMap::emergeBlock
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TODO: Make a dirt node and use it under water
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FIXME: When a new sector is generated, it may change the ground level
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of it's and it's neighbors border that two blocks that are
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above and below each other and that are generated before and
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@ -81,55 +81,32 @@ SUGGESTION: Use same technique for sector heightmaps as what we're
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using for UnlimitedHeightmap? (getting all neighbors
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when generating)
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TODO: Set server to automatically find a good spawning place in some
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SUGG: Set server to automatically find a good spawning place in some
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place where there is water and land.
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- Map to have a getWalkableNear(p)
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- Is this a good idea? It's part of the game to find a good place.
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TODO: Transfer more blocks in a single packet
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SUGG: A blockdata combiner class, to which blocks are added and at
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destruction it sends all the stuff in as few packets as possible.
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TODO: If player is on ground, mainly fetch ground-level blocks
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TODO: Fetch stuff mainly from the viewing direction
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SUGG: If player is on ground, mainly fetch ground-level blocks
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SUGG: Fetch stuff mainly from the viewing direction
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TODO: Expose Connection's seqnums and ACKs to server and client.
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SUGG: Expose Connection's seqnums and ACKs to server and client.
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- This enables saving many packets and making a faster connection
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- This also enables server to check if client has received the
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most recent block sent, for example.
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TODO: Add a sane bandwidth throttling system to Connection
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FIXME: There still are *some* tiny glitches in lighting as seen from
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the client side. The server calculates them right but sometimes
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they don't get transferred properly.
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- Server probably checks that a block is not sent, then continues
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to sending it, then the emerge thread marks it as unsent and then
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the sender sends the block as it was before emerging?
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TODO: How about adding a "revision" field to MapBlocks?
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SUGG: More fine-grained control of client's dumping of blocks from
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memory
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- ...What does this mean in the first place?
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TODO: Somehow prioritize the sending of blocks and combine the block
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send queue lengths
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- Take two blocks to be sent next from each client and assign
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a priority value to them
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- Priority is the same as distance from player
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- Take the highest priority ones and send them. Send as many as
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fits in the global send queue maximum length (sum of lengths
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of client queues)
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TODO: Make the amount of blocks sending to client and the total
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amount of blocks dynamically limited. Transferring blocks is the
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main network eater of this system, so it is the one that has
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to be throttled so that RTTs stay low.
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FIXME: There is a bug that sometimes the EmergeThread bumps to
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the client's emerge counter being already 0, and also the
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sending queue size of the client can float to 1 or 2, which
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stops the map from loading at all.
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- A quick hack could be applied to ignore the error of
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being at 0 and timing out old entries
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SUGG: Make client send GOTBLOCKS before updating meshes
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TODO: Server to load starting inventory from disk
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@ -137,17 +114,7 @@ TODO: PLayers to only be hidden when the client quits.
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TODO: - Players to be saved on disk, with inventory
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TODO: Players to be saved as text in map/players/<name>
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SUGGESTION: A map editing mode (similar to dedicated server mode)
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TODO: Maybe: Create a face calculation queue on the client that is
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processed in a separate thread
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TODO: Make client's mesh updates to happen in a thread similar to
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server's EmergeThread.
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- This is not really needed, mesh update is really fast
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- Instead, the lighting update can be slow
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- So, this todo is not really a todo. It is a not-todo.
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SUGG: Make server to send all modified blocks after a node change
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after all the stuff including lighting have been updated
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SUGG: A map editing mode (similar to dedicated server mode)
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TODO: Make fetching sector's blocks more efficient when rendering
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sectors that have very large amounts of blocks (on client)
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@ -169,16 +136,16 @@ SUGG: Add a time value to the param of footstepped grass and check it
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against a global timer when a block is accessed, to make old
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steps fade away.
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TODO: Add config parameters for server's sending and generating distance
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TODO: Copy the text of the last picked sign to inventory in creative
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mode
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TODO: Untie client network operations from framerate
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- Needs some input queues or something
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SUGG: Make a copy of close-range environment on client for showing
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on screen, with minimal mutexes to slow the main loop down
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on screen, with minimal mutexes to slow down the main loop
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SUGG: Make a PACKET_COMBINED which contains many subpackets. Utilize
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it by sending more stuff in a single packet.
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@ -193,8 +160,8 @@ SUGG: Split MapBlockObject serialization to to-client and to-disk
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TODO: Get rid of GotSplitPacketException
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Before release:
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======================================================================
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SUGG: Implement lighting using VoxelManipulator
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- Would it be significantly faster?
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TODO: Check what goes wrong with caching map to disk (Kray)
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@ -203,7 +170,6 @@ TODO: Remove LazyMeshUpdater. It is not used as supposed.
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Doing now:
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======================================================================
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TODO: Implement lighting using VoxelManipulator
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======================================================================
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