Java Edition 12w21a

Minecraft Wiki article. Categories: Versions_using_legacy_download_site, Java_Edition_versions, Java_Edition_1.3.1_snapshots, Java_Edition_snapshots_released_in_2012, Java_Edition_snapshots, Java_Edition_1.3.1_development_versions, Java_Edition_development_versions_released_in_2012

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Minecraft 12w21a
12w21a Banner.png: Infobox image for Minecraft version 'Minecraft 12w21a'
Java Edition 12w21a.png: Infobox image for Minecraft version 'Minecraft 12w21a'


12w21a is the sixth snapshot for Java Edition 1.3.1, released on May 24, 2012,[1] which added emeralds (Note: Minecraft developer Nathan "Dinnerbone" Adams forgot to change the texture of the emeralds so it stayed as rubies until 12w21b a hotfix to fix it came[2]), ender chests, and more stairs.

Additions

Blocks

Emerald ore

  • Drops 1 emerald when mined.
  • Generates in blobs of up to 10 blocks.

Ender chest

  • Crafted with 8 obsidian and 1 eye of ender.
  • All ender chests in a world have the same contents, if those contents change it affects the contents of all other ender chests.
  • On multiplayer, the ender chest's contents are the same for all players on a server.
  • Emits light level of 7

Sandstone stairs

Items

Emerald

Enchanted golden apple

  • A second type of golden apple made with blocks of gold.
  • After being consumed, the player receives 30 seconds of Regeneration IV, plus Resistance and Fire Resistance for 5 minutes.

World generation

Desert temples

  • New generated structure in desert biomes that resemble pyramids.
  • Have a TNT trap and loot chests inside.

Desert villages

  • Villages that generate in desert biomes now are made of sandstone rather than wood and cobblestone.

Gameplay

Trading

  • Villagers buy or sell the player emeralds in exchange for certain items.
  • Trade with villagers by right-clicking on them, opening up a GUI with one buying slot and one selling slot.

Command format

Commands

  • /seed
    • Displays the current world seed.

Changes

Blocks

Dispensers

  • Eject water and lava source blocks from buckets.
  • Also take water and lava source blocks if there is an empty bucket inside.

Gravel

  • Changed texture from .

Locked chest

Items

Buckets

  • Now stackable to 16.

Mobs

Passive mobs

  • Can be easily pushed around by simply walking. This eases navigating through animal farms.

Non-mob entities

Boats

  • Now pass through lily pads without breaking the boat; the lily pad drops as an item instead.

Minecarts

  • While sitting inside of a minecart, pushing the directional keys makes it move the direction player is pressing. This only works while the minecart is sitting on rails.

Gameplay

Singleplayer

  • The local server no longer runs in a separate Java process, despite still requiring a separate JAR.

Creative

  • Added snow to the Creative inventory.

Sky

  • Stars are more realistic.
    • They are now slightly smaller and slightly brighter.

Command format

Commands

  • /ban
    • Added optional reason parameter.
    • Ban reasons are displayed when players attempt to rejoin the server after being banned.
    • Hardcore death bans now specify the reason "Death in Hardcore"

General

Game Menu

  • The quit button once again properly reads "Save and Quit to Title".

Options

  • Improved options menu.

Debug screen

  • The F3 menu no longer has the frame time graph.

Trivia

  • In this version, when loading a singleplayer world, one needs to put minecraft.zip/server/minecraft_server.jar into .minecraft/server manually to continue loading.

References

  1. ↑ "Minecraft Snapshot Week 21" (archived) – mojang.com.
  2. ↑ Due to a last-minute decision requested by [[Dinnerbone]] (who had trouble distinguishing rubies from redstone due to red-green colorblindness), rubies were replaced with emeralds. Because the change was rushed, [[Jeb]] forgot to update the block texture for this snapshot, causing emerald ore to temporarily generate with the red [[Ruby]] ore texture

Sources