Java Edition 13w02a

13w02a is the third snapshot released for 1.5.

Additions

 * Added and improved death messages – Now include the cause of death, the player the deceased player was fighting at time of death, and the name of the item used to kill
 * Player fell off a ladder
 * Player fell off some vines
 * Player fell out of the water
 * Player fell from a high place
 * Player fell into a patch of fire
 * Player fell into a patch of cacti
 * Player got finished off by Player/Mob using Weapon
 * Player walked into a fire whilst fighting Player/Mob
 * Player was burnt to a crisp whilst fighting Player/Mob
 * Player tried to swim in lava while trying to escape Player/Mob
 * Player walked into a cactus while trying to escape Player/Mob
 * Player was slain by Player/Mob using Weapon
 * Player was killed trying to hurt Player/Mob
 * Added Block of Quartz, Chiseled Quartz Block, Pillar Quartz Block, Quartz Stairs, and Quartz Slab
 * Added Activator Rail
 * 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
 * Added 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

Changes

 * Updated language files
 * Language files can now be updated via the background downloader (no need for a new Minecraft release)
 * Trapped Chest is now in Decoration Blocks in creative mode inventory
 * Improved 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
 * See the wiki's page on texture packs for more information
 * Improved Skeletons aim
 * Now shoots from 15 blocks away, instead of 10
 * Accuracy changes by difficulty
 * Changed Lava textures.
 * Improved naming (using the anvil) of containers and 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
 * 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
 * Improved the 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
 * Improved the Hopper
 * Is now controllable by redstone – Power it to disable item forwarding
 * Added a proper icon
 * Is no longer considered wooden (can't 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). 1/3 of a stack
 * The formerly unused slab type, known by many as the Smooth Stone Slab, was removed from the game. Its data values were replaced with Nether Brick Slabs and Nether Quartz Slabs.
 * Changed the chests in abandoned mineshafts to Minecart with Chest

Fixes
22 bugs fixed

From released versions before 1.5.1
 * – Map scaling breaks the map sometimes
 * – [FIXED] Command block/Repeater acting weirdly
 * – Minecart noise gets stuck on long cart rides. | Bumping, choppy sound
 * – Redstone torch sometimes update instantly (not the North/South quirk)
 * – Minecraft VERY slow to join/update a server, takes LONG time to login (30 seconds/ 1 min)
 * – Rain animation glitches through the ceiling
 * – Anvils will sometimes hit the edge of a block and break instead of being placed.
 * – Floating minecart tracls when pushed by one-pulse piston
 * – Pistons and other Non-Solid blocks
 * – Failed to save player profile
 * – 1.4.6 - Windows 8 64x - Mouse: View issues/Accuracy error?
 * – Crash upon reloading texture pack
 * – Reading Bytes in Minecraft code has a possible flaw

From the 1.5.1 snapshots
 * – Destroying a Daylight Sensor by hand works as quick as with a pickaxe, but only using a pickaxe the item drops
 * – Game stop reading clicks when you are clicking very fast
 * – Inactive detector rail outputs redstone through block
 * – Shift Left Double-click

From the previous snapshot
 * – Item duplication by using the hopper
 * – Adding an item to the chest decreases output signal level
 * – Comparators cannot determine if a container is empty
 * – Extreme Cactus Growth
 * – Hoppers can be used as fuel in furnaces