Yes, it's a sphere, not a cylinder. It's why pigman spawn platforms above nether bedrock are so efficient. Go high enough, and you exclude the rest of the nether as spawn points, making the artificial platform the only valid spot for a few dozen pigmen to all spawn at once. Same logic for standard spawning platforms and why people suggest they be built far into the sky. While you idle up near the platform, the caves below are far enough away to be excluded from the spawn check.
Thanks! I was worried I was too close to my dark room platforms for stuff to spawn. Just found this nice graphic illustrating the issue:
Asking about hostile mobs. I read everywhere that hostile mobs won't spawn with a 24 block "radius" centered on the player. This makes obvious sense in terms of horizontal distance, x and z. But, I can't seem to find a clear answer about the vertical y distance. I've seen some places say that the distance is a "Euclidian sphere" around the player, so that the x, y, and z components are all the same. In other cases, people seem to suggest that the z component includes all vertical blocks from bedrock to top of sky; i.e., a cylinder 24 blocks in radius and 256 blocks (or whatever your world height is) high.
Concrete example: I'm in a cave at y 30. It's night, and the ground surface directly above me is at y 60 (i.e., > 24 blocks away). Is it _possible_ for a mob to spawn to spawn on the ground directly above me? Note, I'm not asking if they will or won't spawn there -- I know a lot of other things affect mob spawning. Just asking if it should be _possible_.
I have an old SMP world that I'd like to redeploy somewhere. I used to run it on Linode, but I'd love to save the $5/mo and use one of the cheap, managed minecraft servers, e.g.,
But, from what I can tell, none of these types of servers provide direct ssh access/control. My question is: does anyone know if these servers offer any way to just upload/deploy your own SMP world? Or, do you always have to start from scratch with the one they deploy?
Like what RTB said, what I found (also using bukkit) was that the /world_nether and /world_the_end directories were no longer being "recognized" by the server, and instead the server was reading the nether and end (newly regenerated) out of two new directories:
/world/DIM-1 - nether
/world/DIM1 - end
so, I just copied the region from /world_nether to /world/DIM-1, and all was back to normal. I haven't been to the end yet,but I'm assuming the same process would work for that.
I just updated my smp to 1.4.2 and it looks as though the nether has been completely wiped and regenerated. I had a pretty big system of portals which were carefully mapped 1 to 1 with the overworld, along with a bunch of tunnels for fast travel. I've been using them for months, so I know they worked properly. From what I can tell, it's all been wiped out.
Anyone else have this experience? I'm pretty sure I can revert back to a recent backup, but it's freaking me out a little.
One way I've found of being 100% sure is finding a Jungle with cocoa bean plants on the trees. But, that would require you have a jungle really close by if you're that lucky.
If you haven't made maps of your world, try something like Minecraft Overviewer, which will show the extent of your world and the co-ordinates. Once you've wandered past the co-ordinates of the edge of the Overviewer map, you'll be on new chunks.
No, there is no way per se to know if a chunk has been generated in one version or another. You can try applying logic (if you find a new feature, then the chunk is new, evidently) but that wouldn't work most of the time. So... the only advice I can give is to travel farther away than you have traveled before, and create new chunks. A nether journey could be useful here.
I've used the nether a lot already for this sort of thing; it if weren't for oceans, it would be more practical. Anyhow, thanks for the definitive answer
Old smp. Recently updated to 1.3, and I want to go mine for emeralds. How can I be sure that I'm on a "new" chunk that might have emeralds? Is there a chunk version anywhere? The debug screen doesn't seem to give that info.
I'm sure I could just go _really_ far in one direction and eventually I can be pretty confident I've found a new chunk, but I'd rather go somewhere closer to home.
I have an old pre-1.2 SMP server that I recently resurrected. I hadn't played minecraft for about a year. The old world was ~2000 x 2000 blocks, centered on origin.
I wanted to see the new biomes. So I portalled to the nether, walked ~400 blocks NE, and portalled back up. I was in an ocean. I paddled ~400 blocks one way, just to be sure: 1 tiny island.
I really wanted land. So, I portalled back to the nether, walked ~400 blocks WNW, and portalled back up. I spawned over water. There was one ~300 x 300 island nearby. Cool, but still an island. I wanted to find an area more like the original world -- mostly land with big lakes -- but with the new biomes.
So, I portalled back to the nether, walked back to origin, then walked ~400 blocks SSW. Again, I spawned over water, and again, there was a big (300x300) island....
What's going on? Is the original ocean I spawned just really huge? I read on the wiki that they can cover 10's of thousands of blocks. Or is there just a LOT more water in the new 1.2 biome/chunk spawning algorithm? I thought that "real" oceans only have tiny islands in them, so maybe my second and third "oceans" aren't really oceans, but just big lakes that I need to cross?
I'll keep exploring, but I'm just confused as to what's going on here....
Nope you're not missing anything. As you found, you can travel one way in a jump fairly quickly, but its not always useful. Just setup a travel network from the nether side and make portals that correspond to the overworld location you want to arrive at. A mere 1000 block travel in the nether will net you 8000 blocks of travel in the overworld.
Thanks rodabon (and everyone else who replied). That makes sense, and I started doing just that last night. I'm now mapping the portals very carefully, 1-to-1.
I went about 600 blocks in the nether, made a portal, and found myself in a cave. I dug up and hit water. DEEP water. I finally got to the surface, and there was just one mushroom island in the distance. I didn't know about the mushroom biome (I just resurrected an old multiplayer world. I hadn't played for most of a year, since before 1.2). Wtf?? There was water _everywhere_. Thankfully I had carried some wood with me. I made a boat, paddled 1000 blocks. Just one island. After a quick goolge I realized I had generated an "ocean". What a trip! This is what I _love_ about minecraft.
Back to the nether and in search of overworld land. I want jungle!
yup, thanks. I've read it. I was pretty sure I had grasped it, but I just wanted to make sure I wasn't missing something before I went ahead and actually built a bunch of portals.
I'm trying to see if I can fast travel with portals. I was hoping to be able to make a big, one-way loop, covering many thousands of blocks.
I've figured out how to make one big one-way jump:
over -> (big jump) -> nether -> over
At that point, I think I'm essentially 'stuck.' From what I can tell from reading in the wiki and from experimenting, once I jump back from the nether to the overworld, I would have to travel a _long_ way (upwards of 1000 blocks) away from my last overworld portal, before I could make another similar "big jump". This is because of the way minecraft calculates where to connect from over -> nether; i.e., it will find the nearest nether world portal corresponding to a 1024 block square (column) in the overworld (128 in the nether, * 8).
My conclusion is that I either need to find a quick way to travel through the overworld (teleboating still work?), which defeats the purpose of portals; or, I need to just link portals 1 to 1 and run/cart/teleboat through the nether.
I have been having the same error and and just fixed it by patching a new server and just copying the "regions" folder from my old server into the new one, and it worked flawlessly. Hope this helps anyone else who is trying to patch their old server to 1.5. Cheers.
I followed this process and it worked for me too (note this is essentially the same process that rch also mentions above: thanks to both of you for this work around). After I was able to login to the world, I also went back and copied over all the player data, which restored my inventory as well.
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Thanks! I was worried I was too close to my dark room platforms for stuff to spawn. Just found this nice graphic illustrating the issue:
http://minecraft.gamepedia.com/File:Mob_spawning_ranges.png
What you say about building platforms up high makes sense, though I've read to stay below y 128:
http://www.minecraftforum.net/forums/minecraft-discussion/survival-mode/278641-do-any-mob-farms-work-in-smp-anymore#c12
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Concrete example: I'm in a cave at y 30. It's night, and the ground surface directly above me is at y 60 (i.e., > 24 blocks away). Is it _possible_ for a mob to spawn to spawn on the ground directly above me? Note, I'm not asking if they will or won't spawn there -- I know a lot of other things affect mob spawning. Just asking if it should be _possible_.
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http://exodushosting.net/minecraft.php
But, from what I can tell, none of these types of servers provide direct ssh access/control. My question is: does anyone know if these servers offer any way to just upload/deploy your own SMP world? Or, do you always have to start from scratch with the one they deploy?
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/world/DIM-1 - nether
/world/DIM1 - end
so, I just copied the region from /world_nether to /world/DIM-1, and all was back to normal. I haven't been to the end yet,but I'm assuming the same process would work for that.
the overworld is still at:
/world/region
for me.
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Anyone else have this experience? I'm pretty sure I can revert back to a recent backup, but it's freaking me out a little.
Thanks,
hawkeye parker
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doh! didn't realize emeralds are only under extreme hills. Thanks!
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That's a good one. Thanks!
Great suggestion, thank you.
I've used the nether a lot already for this sort of thing; it if weren't for oceans, it would be more practical. Anyhow, thanks for the definitive answer
Extreme hills are pre-1.3
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I'm sure I could just go _really_ far in one direction and eventually I can be pretty confident I've found a new chunk, but I'd rather go somewhere closer to home.
thanks,
haughki
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I have an old pre-1.2 SMP server that I recently resurrected. I hadn't played minecraft for about a year. The old world was ~2000 x 2000 blocks, centered on origin.
I wanted to see the new biomes. So I portalled to the nether, walked ~400 blocks NE, and portalled back up. I was in an ocean. I paddled ~400 blocks one way, just to be sure: 1 tiny island.
I really wanted land. So, I portalled back to the nether, walked ~400 blocks WNW, and portalled back up. I spawned over water. There was one ~300 x 300 island nearby. Cool, but still an island. I wanted to find an area more like the original world -- mostly land with big lakes -- but with the new biomes.
So, I portalled back to the nether, walked back to origin, then walked ~400 blocks SSW. Again, I spawned over water, and again, there was a big (300x300) island....
What's going on? Is the original ocean I spawned just really huge? I read on the wiki that they can cover 10's of thousands of blocks. Or is there just a LOT more water in the new 1.2 biome/chunk spawning algorithm? I thought that "real" oceans only have tiny islands in them, so maybe my second and third "oceans" aren't really oceans, but just big lakes that I need to cross?
I'll keep exploring, but I'm just confused as to what's going on here....
Server is a standard bukkit server on beastnode.
Thanks,
haughki
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Thanks rodabon (and everyone else who replied). That makes sense, and I started doing just that last night. I'm now mapping the portals very carefully, 1-to-1.
I went about 600 blocks in the nether, made a portal, and found myself in a cave. I dug up and hit water. DEEP water. I finally got to the surface, and there was just one mushroom island in the distance. I didn't know about the mushroom biome (I just resurrected an old multiplayer world. I hadn't played for most of a year, since before 1.2). Wtf?? There was water _everywhere_. Thankfully I had carried some wood with me. I made a boat, paddled 1000 blocks. Just one island. After a quick goolge I realized I had generated an "ocean". What a trip! This is what I _love_ about minecraft.
Back to the nether and in search of overworld land. I want jungle!
yup, thanks. I've read it. I was pretty sure I had grasped it, but I just wanted to make sure I wasn't missing something before I went ahead and actually built a bunch of portals.
0
I've figured out how to make one big one-way jump:
over -> (big jump) -> nether -> over
At that point, I think I'm essentially 'stuck.' From what I can tell from reading in the wiki and from experimenting, once I jump back from the nether to the overworld, I would have to travel a _long_ way (upwards of 1000 blocks) away from my last overworld portal, before I could make another similar "big jump". This is because of the way minecraft calculates where to connect from over -> nether; i.e., it will find the nearest nether world portal corresponding to a 1024 block square (column) in the overworld (128 in the nether, * 8).
My conclusion is that I either need to find a quick way to travel through the overworld (teleboating still work?), which defeats the purpose of portals; or, I need to just link portals 1 to 1 and run/cart/teleboat through the nether.
Am I missing anything?
Thanks
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Many thanks for the fix!
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I followed this process and it worked for me too (note this is essentially the same process that rch also mentions above: thanks to both of you for this work around). After I was able to login to the world, I also went back and copied over all the player data, which restored my inventory as well.
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Can anyone confirm whether the latest server update (1.5_02) fixes this? Hard to tell for sure from the version comments...
http://www.minecraftwiki.net/wiki/Version_history