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    posted a message on Help Diagnose Mob Farm Not Spawning

    No antenna needed (counterproductive.)

    Check render distance (must be 10 chunks or more.)

    Where are you waiting? More than 24 distance from all spawning surfaces and less than 128?

    If you can, go into spectator mode and determine that your flushing is operating properly and not stuck somehow.


    If on server:

    Your overworld spawns are divided between all players in overworld.

    - This can't be helped except by building your mob farm not in the overworld, or having all players in the mob farm waiting spot, or having nobody else on.

    The server render distance must be 10 chunks or more (player render distance doesn't matter)

    - Ask an admin if you're not admin.


    The 10 chunks thing sounds weird but is a long standing bug - shame, Mojang!

    Posted in: Survival Mode
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    posted a message on Why do item filters use 2 hoppers?

    Another way to look at it is that (in the normal item sorter) the top hopper is responsible for pulling a particular kind of item from the stream (which it always does, if there is such an item) and the bottom hopper is responsible for pulling items from the top hopper and putting them in the chest (which it sometimes does, only if the top hopper is full enough.)

    Posted in: Survival Mode
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    posted a message on Why do item filters use 2 hoppers?

    In your image, the hopper is disabled if it is below the critical quantity (otherwise it would simply send all of its items into the chest, and therefore could not filter anything.)


    But a disabled hopper couldn't pull anything from above, either, right?


    So if the hopper is below the critical quantity, it would ignore anything above it.


    Did I miss something?

    Posted in: Survival Mode
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    posted a message on Minimum time before grass block changes to dirt underwater?

    Grass changes to dirt on a block tick, so in theory it could happen immediately (on next game tick) - right?

    Posted in: Survival Mode
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    posted a message on Ocean Monument design questions and suggestions

    Heh.


    Wall off the legs with a curtain-wall and fill in the floor between the "arms", barring any guardians from sinking or swimming into the area between the legs.


    Then you can see for yourself that guardians cannot spawn in the area between the legs.

    Posted in: Survival Mode
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    posted a message on Ocean Monument design questions and suggestions

    Ocean monuments are quite productive usually even if you don't clear out all the caves, don't clear out all the water, and you have a relatively small covered "fish tank" that the guardians can spawn in.


    Caves - it's the bottom of the ocean, so there's not that much room for caves in the first place.

    Clearing out all the water - Guardian spawn rates are greatly inhibited by being exposed to the sky, so extra water doesn't matter so much.

    Small "fish tank" - There are so many spawn spaces in a even a smaller fish tank, that the spawns in the fish tank tend to dominate all other spawns when you're nearby.


    So if for example you clear out the room with the gold blocks and extend it upwards to the surface and cover it, you can make a guardian spawner that gives you what you need for most single player needs.


    Guardians don't spawn under the floor (between the legs) so just leave it as water, then.

    Posted in: Survival Mode
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    posted a message on My Mob Trap don't work!

    2 things could be wrong:


    1: Server render distance could be less than 10 chunks. (old MC bug.)

    2: The mob cap is shared with everybody on the server, so if there are already 170 mobs or w/e near other people you will see few spawns.


    Also, you need to be 24+ blocks away from the spawning surface (you didn't specify) and preferably less than 32.


    Each dimension (Overworld, Nether, End) has its own mob cap, So if problem 2 is affecting you, and you are doing a mob trap for EXP, then try the End.

    Posted in: Survival Mode
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    posted a message on Finding End Cities

    I've been wandering through the End for about an hour trying to find an end city, is there any trick to finding them, so far I've just been heading in a random direction, hopping from island to island hoping I get lucky, is there any better way?



    Ha, took me a lot longer than an hour, with only one end-portal.

    Might want to kill the dragon another 19 times and get more end portals?


    Anyhow, I made maps as I went along, so I could see what was close enough to bridge quickly and so on.

    Posted in: Survival Mode
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    posted a message on Mob grinder escapades

    The problem with that is the long fall distance he is using. If you AFK at Y170 the mobs will despawn before hitting the bottom of the fall at Y13.

    Oh yeah, good point, people.

    Seems like the best option would be to have the death surface be at y=20, and the AFK point be at y=140 then. You'll be including a lot more caves in the magic radius-128 sphere then, but hopefully not enough to cause major problems. (Substantially less than being near ground level anyhow.)

    Or, geez, just build the whole thing high in the air. Make it look like a UFO mothership or something. Get there via the Nether.
    Posted in: Survival Mode
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    posted a message on Mob grinder escapades

    I think I have about 1000 spawnable spaces (dark block top surfaces) in my current spawner, which isn't even a "really big" one, but you have 32. Try maybe 10x - 30x as many dark blocks as you currently have (depending on how many spawns you want and how fast you want them.)


    You have an active flushing system (pistons) so there's no need for you to be as close as 25 spaces, since you aren't depending on the mobs walking off to their deaths. Try being 120 blocks above the lowest spawning block (like y=170 if the lowest spawning block is at y=50) Doing that will result in the smallest number of random dark cave / surface blocks in the 128-radius sphere around you (the player.)


    Lighting up the surface where it is within 128 blocks of the AFK spot would be good of course. There should be few caves within that radius but you could look, for a modest improvement in spawns.

    Posted in: Survival Mode
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    posted a message on Trying to explain the immediate and massive change in spawn rates in a largely unlit area

    If you're underground under an ocean, dark spaces will be quite limited to begin with, because there is little earth to hold caves and ravines. (Sometimes you can build a fairly successful darkroom spawner immediately at a deep ocean base.)


    So the main theory is that once you eliminated almost all the dark spaces (and raised your render distance) you got crazy spawn rates. Like traveling around inside a darkroom monster spawner.

    Posted in: Survival Mode
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    posted a message on A large group of creepers showed itself today.

    I'm still not sure I enjoyed being attacked by 12 different creepers in under a minute, though.

    One word for you tho: Fratricide.
    Posted in: Survival Mode
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    posted a message on A large group of creepers showed itself today.

    Monsters spawn in packs, trying to spawn 4 of the same kind on the same level


    So 3-8 of the same kind is not too extraordinary.

    Posted in: Survival Mode
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    posted a message on Lost all of my enchanted items in lava, including an Infinity bow. How fast can I regain these times before I just give up?

    A passive water canal mob spawner is easy to build and gets you back to 30 pretty quickly (delivering one mob every couple of seconds.)


    Using redstone, a water-dispensing mob spawner can be much faster.


    There are tons of posts on these Overworld-type mob spawners.

    Posted in: Survival Mode
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    posted a message on Mob Spawn Rates Flat World vs Regular

    I think the chunk height limit (the range checked for mob spawns) was changed recently so it's always 256 and not the highest block in that chunk.


    So for example there's no point in building an Enderman farm especially low.

    Posted in: Survival Mode
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