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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from TheWesson»
    That wiki quote quibbles on initial construction. You can have 2 nether portals (An and Bn) quite close by and 2 overworld portals (Ao and Bo) pretty close by and Ao-An will be 'linked' and Bo-Bn will be 'linked' as long as they are constructed at the correct coordinates to be best existing matches for each other.

    So when you enter from your sky spawner's portal you will probably emerge at some existing portal (assuming you've been to nether in this world before) but if you take care to match the coordinates as I've described, (X/8, best-Y, Z/8) then you can construct a better match by hand which will always be preferred when travelling to/from your sky spawner.

    Oooooh! I might try that then :D
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from TheWesson»

    Making it nether-accessible is quite easy:
    1 - Record your X and Z coordinates at the spawner
    2 - Build a nether portal in your spawner and go to the nether
    3 - Destroy any new nether portal that was caused by step 2 if it's not suitable for step 4
    4 - Build a portal in the Nether at X/8, Y, Z/8 where the Y doesn't have to be 200 but should be "higher than any other nether portal nearby".

    Who knows, Nether access might help with the spawning problem. Or maybe not. But still useful. You save both horizontal distance traveled and lots of vertical distance.

    I have this issue from the wiki:

    • Likelihood of 2 overworld portals linking to the same Nether portal - Overworld portals that are within 1024 distance of each other on both X and Z axis are almost always going to link to the same Nether realm portal on initial construction because 1024 translates to a distance of 128 in the Nether Realm, and the game checks for existing Portals within 128 "radius" around the destination (the 257x257x128 box).

    I'm not against a little climb up the ladder though :)
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from TheWesson»

    By the way - using a nether portal to travel to/from your sky spawner?

    I'm not, just a big ladder
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from TheWesson»
    By the way, the render distance spawn rate bug seems to be a matter of mobs being spawned in unloaded chunks (outside render distance), and then the unloaded chunks never being processed for mob despawning.

    https://bugs.mojang.com/browse/MC-2536

    So a likely place to look for this problem (and fix) would be something about chunks getting loaded / unloaded. Symptoms are similar as for the render distance bug: just a very few (but not zero) mobs spawning.

    Which brings me to yet another suggestion: Get Player A and Player B both to the mob spawner, and have them log out of the server, and then log in again. Maybe this will jog the chunk-loaded situation into order. (Going to the Nether should have the same effect on overworld chunk loading as logging out, though.)

    Still a stab in the dark.

    Yeah, I'll try that when I get home. I can't say I've had that scenario produced before naturally.
    I really appreciate all the thought and work that people are putting into helping by the way :) It means a lot!
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from MineRafter»
    Have you raised this issue to Mojang?

    I haven't, I thought I would wait on Crumpetxxix to verify before I raised the issue any farther. Also, you might want to put that text after your post into your signature, instead of pasting it in after every post :D
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from PileGuru»

    Haven't had that problem. My farm rocks with the only other player next to me. The only thing I could see is if the player came in from another location, the mobs would already be spawned so you would have to wait for all those mobs to despawn before the local rate would start picking up.

    Mobs despawn after being 128 blocks from a player, so that shouldn't be an issue.
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from TheWesson»

    10 is fine, I'm not surprised 12 doesn't help.

    I don't know why extending the structure into nearby chunks would make a difference. It would be due to some complicated bug I suppose, and isn't logical. This suggestion is something that worked for this one guy on Realms who would get zero spawns from his ocean sky spawner. There is an old suggestion about building a "radio antenna" but that is something that related to a chunk limit bug (and chunk limits are all just 256 now anyhow I think.)

    I assume Player A and Player B are standing at just about precisely the same place when testing 2-player? What if Player B goes to the Nether?

    Also, I assume Player A and Player B both see the same "E: 2/32" kind of entity stats when both are standing together at the mob spawner?

    To answer the question first, we stood maybe 1 block away from each other (pretty negligible distance). I haven't tried checking my friends E: X/Y counter yet when we're both at the spawner... I'll do that tonight

    Additionally, I like your idea about the nether, so I'll try that as well.
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from florek»
    hmm, lets try to think outside the box.

    what about chunkloaders? is it possible other guy did some hopper magic and force some of his chunks to be loaded all the time? hmm, it still shoudn`t spawn anything because of distance. players still would be too far away from loaded chunk. what about villagers? can a presense of villager cause mob spawn in loaded chunk? to tell the truth - I don`t think so :-), I`m just trying to do some brainstorming.

    since problem seems to be isolated to your server, maybe its something on your side? can you ask you friend to do the same tests when you are logged off? is s/he having same results?


    You Ninja'd me!

    That last part seems the most reasonable. I highly doubt chunk loaders would do anything (they might even help, as to raise the mob cap by increasing loaded chunks, while not increasing number of players). I might have my friend try and recreate the scenario by himself, and see if he gets good spawn rates alone compared to when someone else joins.
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from TheWesson»
    Well, I have nothing - looks like you should be getting a lot more spawns in your farm than you are.

    For me, it would be shot in the dark time.

    Change server "view distance"?

    Is Player B or Player A too close to the spawn platform? (closer than 24.)

    Is a mod affecting this?

    In certain situations, spawning seems to be affected by structures nearby - try putting some (unspawnable) 20-block fingers out of from the spawner.

    I had the admin change the view distance. It started off at 10 (default), and he changed it to 12, but we haven't seen any changes. We may tinker with this more

    I don't think I'm too close, about 25-30 blocks away (it spawns great when alone in the server, and I stand in the same spot no matter what)

    I don't think a mod would affect it, as I only have client side mods, though I will try doing this with a clean client when I get home

    Can you explain the logic behind the part about adding unspawnable blocks around my farm?
    Quote from TheWesson»

    True but the problem persists when his friend is at the same location on the spawner apparently.

    Correct. That's the part that makes it really confusing.
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from florek»
    ummm, maybe it is very simple - night time open new possible spawn places for mobs, so they spawn everywhere around.

    Was just chance that I happened to take it at night. Mobs should not be able to spawn anywhere else but in my spawner, as I am over 128 blocks from any other possible spawning surface. The same thing happens during the day, my screenshot just happened to be at night.
    Quote from ZeBlueDevil»
    Those are some good frames... O.o the best I get is around 50 or 75 tho usually around 30

    Optifine helps :)
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Here are my results. The first image is just me on the server (got an X-Ray to see what was going on), and the second image is with 1 other person. I have the F3 open menu on both for your convenience





    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from TheWesson»

    So ... for more info ... check the "E" (entity) count in the F3 view for both players. Hostile mobs are only part of Entities, but around your mob spawner, almost all Entities will be Hostile Mobs (I would think.)

    Yeah, when I did that for mine, I was literally only getting 1 or 2 out of maybe 30. Didn't seem right. According to the minecraft wiki page on mob spawning, the mob cap should scale with how many chunks are currently loaded, so I'm not 100% sure why it's not spawning correctly with multiple players on. When I get home from work I'll post pictures of my spawner with co-ords.
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from Crumpetxxix»
    Yeah I have two accounts, I can load both up no problem, and I have both spawner traps and a regular universal mob farm I can test. Just to be clear, you want me to test the universal mob farm (non spawner trap) with both players in the same location running the farm, correct?

    I'm not sure if it would make a difference if it's a LAN world or an actual server though. I highly doubt it will but if necessary I could download the 1.8.1 server jar and move my single player world into it just to test it out.

    Correct. I would like to see if that has any effect on the spawn rate. Just to clarify, I get basically 1-2 mobs dropping per second when alone in the server, and maybe 1 mob every 2 minutes dropping when there's others connected (even just 1 player). Do you think you could try having the second player far away (probably a couple hundred blocks), and then also close (within the same chunk, probably just standing next to each other), just to check? Hope I'm not asking too much, I just want to make sure I'm not going insane.

    And yes, currently, our server is using the 1.8.1 default server jar, so if you don't notice it in a LAN world, it would be awesome if you could do it with the .jar running :)

    Thank you for your help Crumpetxxix, you definitely earned a new subscriber ;)
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Quote from Crumpetxxix»

    Are you talking about animals like cows, chickens, pigs, etc? I know that they still work, but all the passive mobs in your spawn chunks will be counted towards the total passive mob cap, so if you're trying to build one of those, you will need to kill all passive mobs in your spawn chunks, as well as wherever you're attempting to build it at.

    Also, what TheWesson was saying, it's odd that even if the other player that was on the server with you, while he was in the same area as you, and you still weren't seeing spawns. Can anyone conform that bug? That is not intended behavior for mob spawns. If anything I can try to load up my camera account or something in a LAN world and try to test it.

    Apologies, I kind of worded it weird. I meant mob spawners that don't actively use an actual mob spawner, but ones that just use the regular spawning scenario (darkness, solid block, 2 blocks of air space)

    I would be extremely grateful if you were able to test this and confirm / deny that this may actually be a thing. :)
    Posted in: Survival Mode
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    posted a message on [1.8.1] Question about SMP mob farms
    Can anyone else confirm issues with passive mob spawners in multiplayer 1.8?
    Posted in: Survival Mode
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