Java Edition 12w22a

12w22a is the eighth snapshot released for 1.3.1.

Blocks

 * Block of emerald
 * Decorative storage blocks, crafted with 9 emeralds.


 * Tripwire and tripwire hooks
 * Can place down string to create tripwire, when walked on, these can activate tripwire hooks if there is a hook at each end of the string.

World generation

 * Jungle temple
 * Generated Structure that generate in jungle biomes.
 * Comprised mainly of cobblestone and moss stone.
 * Have dispenser and tripwire traps and chest loot.

Gameplay

 * Adventure mode
 * New gamemode, only accessible with.
 * The player cannot break or place any blocks.
 * The player can interact with any blocks, like doors and levers, and can buy from villagers.
 * The player can still damage mobs.


 * Creative inventory
 * Added potions to the Creative inventory; found in “brewing" category.
 * Added delete item, armor and crafting to survival inventory when in Creative.
 * Added silverfish cobblestone and stone brick monster egg blocks to the Creative inventory.

Blocks

 * Cauldron
 * When exposed to rain, cauldrons have a possibility to slowly filling with water.


 * Emerald ore
 * Now generates in veins of 1 block


 * Leaves
 * Rain will slowly drip through leaves.


 * Slabs
 * Half-slabs can now be placed upside-down when pointing at the upper half of the side of a block. This does not work with stairs.

World generation

 * General
 * Some minor terrain changes.

Gameplay

 * Enchanting
 * Enchantment system has been rebalanced.
 * The maximum enchantment level has been lowered from 50 to 30.
 * As a result enchantment tables now require only 15 bookcases around them to allow maximum level enchantments.
 * With a full enchantment table set with bookshelves, at the bottom of the 3 enchantments, it always shows you the highest number possible.
 * Using level 30 enchantments, the player has a lot more luck; almost all items get at least 2 enchantments.
 * Various actions will now reward the player with Experience Orbs, such as mining ores (except Gold Ore and Iron Ore), using furnaces, and getting achievements.
 * Levels are now awarded linearly. It takes 17 experience to go up one level.


 * Inventory
 * Blocks seen in inventory are oriented to the right instead of to the left.


 * Nether portals
 * Have a very small chance of spawning zombie pigmen.


 * Singleplayer
 * Pausing now works again in single player.


 * Smelting
 * Smelting in a furnace with a lava bucket now leaves an empty bucket for the player to retrieve.


 * Villager Trading
 * Villagers can now trade all sorts of items with you (for example, 1 emerald + 10 gravel → 3 flint).
 * Some villagers will offer to enchant items (e.g. 3 emeralds + 1 iron pickaxe → 1 iron pickaxe with Fortune I).

General

 * Debug screen
 * Pressing will reload the chunks.

Fixes
10 bugs fixed


 * In the redstone tab of the creative inventory, the redstone torch is now on instead of being off.
 * In the decoration tab of the creative inventory, the redstone torch has been removed.
 * Fixed the size of slimes which was sometimes wrong in the previous snapshot.
 * Fully charged arrows now show their particle effect again.
 * Arrows are now stuck at the correct position in the block they hit.
 * The language English (US) is available again.
 * Fixed Enderman often not shaking and opening their jaws when looked at.
 * Fixed repeaters sometimes being stuck when loading the chunks they are in.
 * The Search tab does not automatically open up unless the player presses their chat key, allowing the inventory to be closed with the normal inventory key again.
 * Fixed bug causing stacked buckets to disappear when used to milk cows.