Minecraft Forums

Quote from allyourbasesaregone»

You mean if the chunks generate 12 eyes between them.

Interesting find

nope, I mean this

Quote from TheMasterCaver»

I believe they mean that if any single chunk that contains part of the portal happens to roll 12 eyes then the portal is automatically filled even if the other 1-3 chunks would not generate a full portal, so in the case of a portal spanning 4 chunks the chance is 1 in 250 billion instead of 1 in 1 trillion. I noticed that the screenshot in the link shows that only one of the 9 portal blocks was actually placed with the two adjacent portal frames filled, which is consistent with this (large structures like strongholds generate in such a way that only blocks within the chunk currently being decorated are placed).

the chances are 1.266 / 1 trillion instead of 1 / 1 trillion if this assumption and the assumption that portals are generated uniformly hold. See https://gaming.stackexchange.com/questions/382000/how-likely-is-it-for-an-end-portal-to-already-be-complete/384002#384002 for math

Also the chances are higher than 1/1 trillion since a portal can generate over multiple chunks, and if the chunk generates 12 eyes, then the portal block still appears, like in the recent SSG seed 2483313382402348964. Probably.

https://www.reddit.com/r/MinecraftSpeedrun/comments/ll5s30/opened_end_portal_without_12_ender_eyes_on_it/gnnj8e2/

aminotreal showed me 2x3x9 in stacking volume although it requires one or two extra blocks on the side for a single bit (so the volume for 1 bit is 2x4x9). it uses a completely different concept of signal strength addition which I should've seen coming. it's very clever and I will probably show it in a follow up video

Yes they can through sites like namemc.com

for designs that don't stack, here's 2x4x7 that doesn't stack with inverted output and 2x5x7 without torches

I know 2x5x6 is possible

unholy abomination that is 2x4x7

It actually stacks because even tho the signal at the glowstone leaks through to the next bit, it doesn't affect it because it is 14 ss and the comparator has 15 ss input!

requires equal signal strength for the xor. yeah ik

observer stuff is a separate category since it has very strict timing

lol

I was interested in the code of how it works so I dug through the 1.16.4 code. As you can see, each eye has a 10% chance and if by chance all eyes are set, the flag is set and the end portal is naturally generated (making end portals one of the rarest naturally generated blocks?)

         boolean flag = true;
         boolean[] aboolean = new boolean[12];

         for(int l = 0; l < aboolean.length; ++l) {
            aboolean[l] = p_230383_4_.nextFloat() > 0.9F;
            flag &= aboolean[l];
         }

         this.setBlockState(p_230383_1_, blockstate6.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[0])), 4, 3, 8, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate6.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[1])), 5, 3, 8, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate6.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[2])), 6, 3, 8, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate2.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[3])), 4, 3, 12, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate2.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[4])), 5, 3, 12, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate2.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[5])), 6, 3, 12, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate3.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[6])), 3, 3, 9, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate3.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[7])), 3, 3, 10, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate3.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[8])), 3, 3, 11, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate4.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[9])), 7, 3, 9, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate4.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[10])), 7, 3, 10, p_230383_5_);
         this.setBlockState(p_230383_1_, blockstate4.with(EndPortalFrameBlock.EYE, Boolean.valueOf(aboolean[11])), 7, 3, 11, p_230383_5_);
         if (flag) {
            BlockState blockstate7 = Blocks.END_PORTAL.getDefaultState();
            this.setBlockState(p_230383_1_, blockstate7, 4, 3, 9, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 5, 3, 9, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 6, 3, 9, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 4, 3, 10, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 5, 3, 10, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 6, 3, 10, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 4, 3, 11, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 5, 3, 11, p_230383_5_);
            this.setBlockState(p_230383_1_, blockstate7, 6, 3, 11, p_230383_5_);
         }

I'm interested in how you would predict the RNG: maybe a tool like https://github.com/toolbox4minecraft/amidst can fully simulate world gen and simulate through all the RNG calls?
AFAIK the RNG p_230383_4_ is used only for world gen? I didn't trace the actual very first initialization of the object.

This is a slightly smaller 6x9x2 design based on a slight rewire final XOR, moving the Cin input towards the middle.

In old versions of minecraft, redstone wire redirection was different, in that a wire would redirect towards the direction of a torch if the wire was placed on a block that also had a torch placed on it. This affects the 6x9x2 design top of the final xor which is easily fixed.

I also have a possible 5x10x2 design, currently with inverted Cout, but if I can figure out a way to use inverted carry or stagger wires correctly, then it might work.

Very nicely presented. Do you use ASCII?

Btw if you're interested in a redstone server to hangout with fellow redstoners, check out ORE in my signature.

I'm back.

Dedicated to Berick.

You do not need to have any formal background. My major is not in CS and many of our users are in middle school or high school. Don't be discouraged. When I was younger I always questioned if I had the background or maturity do try to design computer systems, and as I got older I realized that didn't matter in a game. By actually building the computer, you've already gone further than 99% of those interested in redstone.

ORE also has a school server that requires no application if you're interested. You get a little plot of land to build on.

Nice to see people building computational redstone in the redstone section. Youtube recommends me Ben Eater videos but I don't watch any of them because I already have a little bit of background in digital logic and assembly level code.

Btw if you're interested in this kind of stuff, I'm part of a whole server, Open Redstone Engineers, that does this kind of redstone (assuming you're not already a member). See my signature.