Java Edition 13w02a

13w02a is the third snapshot released for Java Edition 1.5.

An experimental version of 13w02a was released by Dinnerbone on Mojira to try to fix an issue with white textures.

Blocks

 * Activator rails
 * Used to trigger TNT Minecarts.
 * Needs to be powered by redstone.
 * Transmits power up to 8 activator rails far.
 * Crafted the same way as normal rails except without a stick in the middle.


 * Block of Quartz
 * New building block.
 * Made by using 4 pieces of Nether quartz in a square.


 * Chiseled Quartz Block
 * New building block.
 * Crafting recipe is 2 quartz slabs vertically.


 * Pillar Quartz Block
 * New building block.
 * Crafting recipe is 2 Blocks of quartz vertically.


 * Quartz Stairs
 * New stair block.
 * Crafting recipe is the same except that it is made out of any quartz block.


 * Quartz slabs
 * New slab block.
 * Crafting recipe is the same except that it is made out of any quartz block.

Non-mob entities

 * Minecart with TNT
 * Triggered by Activator Rails
 * Crafting recipe is a TNT block on top of a minecart (allowing for creation in the 2x2 inventory)
 * When it derails, it explodes instantly, ignoring the usual timer delay
 * Explodes even more violently the faster it goes
 * In Creative mode when left clicked while moving, the Minecart with TNT explodes

Gameplay

 * Death messages
 * Now includes the cause of death, the player the deceased player was fighting at time of death, and the name of the item used to kill.
 * For death messages for fall damage, a complicated system was introduced.
 * There are now two types of messages, "[player] " and "[player] and ".
 * can be:
 * fell [off a ladder/off some vines/out of the water/fell from a high place]
 * was [shot/pummeled/blown/fireballed/knocked] [off a ladder/off some vines/out of the water/from a high place]
 * was [shot/pummeled/blown/fireballed/knocked] [off a ladder/off some vines/out of the water/from a high place] by [player/mob]
 * can be:
 * into a pool of lava
 * fell out of the world
 * into a patch of fire
 * into a patch of cacti
 * got finished off by [player/mob]
 * got finished off by [player/mob] using [item]
 * got finished off using [item]
 * There are 352 different death messages for falling. (Technically there are 416 because the verb "blown" exists twice in the en_US.lang file.)

Blocks

 * Anvils
 * Improved naming of containers
 * Renamed Chests, Trapped Chests, Dispensers, Furnaces, Brewing Stands, and Enchantment Tables will display the new name in their GUI where the normal name used to appear.


 * Hoppers
 * Is now controllable by redstone – Power it to disable item forwarding.
 * Added a proper icon.
 * Is no longer considered wooden (cannot be used as a fuel in a furnace, etc.).
 * New crafting recipe uses iron ingots rather than stone.
 * The redstone signal emitted when a Comparator is placed against it directly has changed.
 * 1 item will give a signal strength of 1, a 1/3 of a stack (21 for items which stack to 64) gives a signal strength of 2.
 * The number of full stacks x 3 = Signal strength.
 * E.g. 2 stacks of an item/block will give a signal strength of 6, while 2 potions will also give a signal strength of 6 (because a potion occupies one stack).


 * Lava
 * Changed textures.


 * Redstone Comparator
 * Updated texture.
 * When fed by containers, they will now start giving out a signal as soon as 1 item is in the container, allowing for empty container detection.


 * Slabs
 * The "Smooth Stone Slab" (Didn't have an official name) is now removed from the game.
 * Its data values were replaced with Nether Brick Slabs and Nether Quartz Slabs.


 * Trapped chests
 * Now in Decoration Blocks in creative mode inventory.

Mobs

 * General
 * Improved naming of mob eggs.
 * Mobs spawned from renamed eggs have the name of the egg and the names will appear in the death message.
 * Mobs can now display their custom name as nametag using an NBT tag.


 * Skeletons
 * Improved aiming.
 * Now shoots from 15 blocks away, instead of 10
 * Accuracy changes by difficulty

World generation

 * Mineshafts
 * Changed the chests to Minecart with chest.

Gameplay

 * Language
 * Updated language files.
 * Language files can now be updated via the background downloader (no need for a new Minecraft release).


 * Texture packs
 * Textures now use one file per block/item, which are stitched together at runtime – Texture sizes don't need to be consistent.
 * Any block and item can be animated by putting the frames underneath each other in the right .png – Use an optional .txt to specify frame order and duration.
 * Special rules apply for water, lava, compass, and clock.
 * Existing texture packs will "automagically" be converted.
 * Vanilla textures will be used if texture files are missing.