I might be confused about how /jump works... but I've never been able to jump through walls. XD If you point at a wall and do /jump, it's always taken me up, to the top.

So... if you build a completely enclosed room, the only way in should be from the floor (or if you break blocks to get in, which is how the owner would have to get in, in this case). The only way I can think of to stop people from flying down and jumping in, would be to build it on the void. If you build it exactly over the void, anyone who goes under gets sucked into eternal darkness. It's the point you literally can't build below (this I have played with ).

However, building over the void creates some lag. And sheep would cause more lag. Not to mention, it would be a pain in the butt to get down to unless you have fly and god and just drop down then /home back up. And as mentioned, if you wanted crops / spreading grass down there it would take some serious lighting... though glowstone is available from the shop.

It's the only way I know of to create a completely safe room though. I remember when we tried to cage off /warp shippy to stop people killing the merry-go-pigs and Geralds. Fences... water... It was a mess. And a disaster since it didn't work. XD

 

already tried, hktv, nekoemmi and darc_ all got through it

 

Yes, yes we did. Here's a screenshot of us testing different designs - Darc, Neko and I were invited since having /fly helps a lot with the jump command.
http://i.imgur.com/xmoX1N4.png (The design you see didn't work because you could jump into the fence and just sorta hang out on the stone slabs, then you could jump again, so it didn't matter how many layers you created - solid and thick wouldn't work because jump bypasses ALL of that.

Wouldn't it be great if /jump had a block limit?

 

I used to be able to get below my void island pre-reset too without dying in the void, as I had /god so.. just putting it directly above void doesn't stop anyone with /god sadly.

 

wait. why DOESNT it work?

 

Neko and I tested and we could reach the top. With /fly you can use the jump command much more efficiently. I have found that 2 block high grass can prevent jumping if you're not a Highroller, but if you are a highroller you can simply fly up to the block and jump - even if this were to be a solution, the price of grass would be impeccable

 

Ummm... just saying revealing your secret hiding spots here kinda defeats the purpose of "secret hiding," lol. I'm gunna test some builds and get back to this

 

well, seeing as they dont work anyways....

 

I use the Chestshop for lockette, I Usually put air and B or S 999999 or whatever you want

 

You need to build a box, with the walls 3 blocks thick. Inside of it, for the floor, it needs to be raised by one block, so there is a gap underneath, so if anyone could somehow /jump through it, they'd suffocate. Hide an entrance, that's pretty much how you'd get in.

 

Suffocation simply won't happen with /god and /jump makes it so you can literally jump inside of blocks

 

I'd say put it somewhere not obvious. Say if you build a statue of yourself, put it in your head. Sounds really weird I know but if you keep the location hidden and surround it with lockettes, only you could get in by a hatch or something

Edit: technically not impenetrable, but close to if you do a good job consealing it

 

However, with /jump, you can only penetrate a wall if you're facing upwards, or if the wall is one block thick, or if there is a diagonal gap in it somewhere.

But - since there is a pocket of air in it, you won't be able to see where you're going, so you won't be able to /jump inside of it. Though, if you have /fly you can fly up...

Well, s***.

 

Cool info. Using Jorenato's visit I have discovered you can't type in Chat or use commands whilst inside of a Netherportal. This would be a cool solution, yet your farms - sadly- would only be in 1 thick slices. This may be the solution to all our problems! Yet I'm gonna do some testing with Gnollmar later to confirm.

 

I have a few ideas. I'll see if they work.

 

Can you spawn in bedrock? if so spawn in bedrock then have something in it you can tp too. It should work if you need more help or want detail on how to do it message me.

 

I get the statement that you are making but very many people on this server have /jump or /fly and can use those commands to get through the door. Not trying to be rude just helping.

 

I have the solution for you all! Yet, there are notable downsides. The downsides are obviously you'll have to have it 1 block wide and each 1 block wide section can only be I think 21 block, although you can build up and up and up.

So the solution is Nether portals! Or more specifically, the portal blocks themselves. Once you're in a nether portal you literally cannot open Chat, so you cannot do the command which means you're actually stuck - unless you relog of course. This is the working model I have:


As you can see, I have stacked them up, also you can use ladders to go up and down the layers, I just made this for demonstrative purposes. I am doing more testing to see if I can bypass this system but currently it works very well

 

Umm...
How about a very fast redstone clock with pistons as walls?
Probably won't work, just a thought

 

Too laggy probably