Talk:Java Edition 16w20a

Gold in Mesa's
I can confirm that gold generates higher in Mesa's, I think up to the limit of the Pocket Edition. As example, this gold generated up to Y=63 in seed 999266818133312745. In the same seed I found also gold at Y=73. -- DarkShadowTNT  NL Admin ( t  ♦  c ) 16:31, 18 May 2016 (UTC)

Gold spawns at y=70 in the mesa biomes now(could be higher haven't seen it above y=70), seed is 1785852800490497919 cords to prove are -740,70,117--MrJacen (talk) 16:41, 18 May 2016 (UTC)

End City / Igloo NBT is different
All the NBT files for Igloos and End Cities are changed, from 1.9.4 to this snapshot. Can anyone who reads NBT confirm whether there's something different in the structure itself, or otherwise account for the differences? – Sealbudsman talk/contr 19:19, 18 May 2016 (UTC)


 * The format of the NBT files is new, but I think the structures themselves are unchanged. In 1.9.4, the structures have a 'blocks' array that specifies each block by position and a numeric 'state', combining ID and data (looks like ). In 16w20a, the 'state' refers to an index in a new 'palette' array, which lists all the blocks used in the structure with name ID and block state tags. -- Orthotopetalk 00:33, 20 May 2016 (UTC)

Coal fossils
Can anyone discover whether, in assets/minecraft/structures/fossils, the _coal variants actually refer to fossils made of coal blocks, or does it simply refer to the coal ore that accompanies fossils, or what? – Sealbudsman talk/contr 19:23, 18 May 2016 (UTC)
 * I have not dug into the code or anything, but I do think that the coal ore varients just refer to the ore that accompanies fossils. I excavated a large part of the desert, only removing stone, and I only saw the normal part coal/part bone ones. -PancakeIdentity (talk) 00:06, 20 May 2016 (UTC)


 * Looks to me like it's the same structure, just using coal ore instead of bone blocks. The 'blocks' array is the same size, and the ones I've checked are all in the same positions. Not sure how the natural generation process works, though. Some coal ore near fossils may just be a deposit that happened to generate nearby, since it's fairly common. -- Orthotopetalk 00:33, 20 May 2016 (UTC)
 * I made a customized world (all desert, coal set to spawn size 1, max and min height 0, and spawn tries 0). Coal still spawned in the fossils, and only in place of bone blocks-PancakeIdentity (talk)
 * It looks to me like the code takes the bone structure and places it with a setting that makes it place only 90% of the blocks, then takes the corresponding coal structure and places it with a setting that makes it place only 10% of the blocks. Anomie x (talk) 01:00, 20 May 2016 (UTC)

Thanks to Anomie x
Just want to say thanks to Anomie x for fixing some of my edit screw ups. I misunderstood a few things and you corrected them. I didn't mean to "obliterate good edits". There was an edit conflict and I meant to add it back, but never got to it. Once again, thanks. -PancakeIdentity (talk) 00:58, 20 May 2016 (UTC)
 * In turn, I'll apologize for being a bit irritable. Too much time staring at obfuscated decompiled code trying to figure out what changed and how stuff works. Anomie x (talk) 01:01, 20 May 2016 (UTC)
 * Regarding the 2 pixel height difference, if it exists it's only visual. In the code, all (adult) zombies are 1.95 blocks tall. Anomie x (talk) 01:04, 20 May 2016 (UTC)
 * Oh, okay. I just tested and the hitbox is still the same, so only visual difference. Thanks for your work on the wiki and digging through the code and finding this stuff out. -PancakeIdentity (talk) 01:23, 20 May 2016 (UTC)