Java Edition 13w02a

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 "title": "Minecraft 13w02a",
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 "13w02a Banner.png",
 "Java Edition 13w02a.png"
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 "rows": [
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 "field": "''(link to Java Edition article, displayed as Java Edition)''",
 "label": "(link to Edition article, displayed as Edition)"
 },
 {
 "field": "January 10, 2013",
 "label": "Release date"
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 {
 "field": "(link to Snapshot article, displayed as Snapshot)",
 "label": "(link to Version types article, displayed as Type)"
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 {
 "field": "(link to Java Edition 1.5 article, displayed as 1.5)",
 "label": "Snapshot for"
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 {
 "field": "[https://vault.omniarchive.uk/archive/java/client-release/1.5/pre/13w02a.jar Client] ([https://meta.celestia.sh/versions/v1/13w02a.json .json])<br>[https://vault.omniarchive.uk/archive/java/client-release/1.5/pre/13w02a-whitetexturefix.jar Experimental client] ([https://meta.celestia.sh/versions/v1/13w02a-whitetexturefix.json .json]) <br />[https://vault.omniarchive.uk/archive/java/server-release/1.5/pre/13w02a.jar Server] ([https://vault.omniarchive.uk/archive/java/server-release/1.5/pre/13w02a.exe .exe]\n(link to Category:Versions using legacy download site article, displayed as Category:Versions using legacy download site))",
 "label": "(link to Tutorial:Installing a version#Manual version installation article, displayed as Downloads)"
 },
 {
 "field": "53",
 "label": "(link to Protocol version article, displayed as Protocol version)"
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 {
 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_5 Java SE 5]</span>",
 "label": "<span style=\"white-space: normal;\">Minimum Java version</span>"
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 "invimages": [],
 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Java Edition 1.4.7|<span style=\"margin-right:-0.35em\">◄</span>◄  1.4.7]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.5|1.5]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.5.1| 1.5.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 13w01b|◄  13w01b]]\n</td>\n<td style=\"padding: 0.4em\">''' 13w02a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 13w02b| 13w02b ►]]\n</td>\n</tr>\n</table>"
}

13w02a is the third snapshot for Java Edition 1.5, released on January 10, 2013.^[2]

An experimental version of 13w02a was released by Dinnerbone on Mojira to try to fix an issue with white textures.^[3]

👁 Image
Activator rails

• Used to trigger minecarts with TNT.
• Need to be powered by redstone.
• Transmit power up to 8 activator rails far.
• Crafted the same way as normal rails except without a stick in the middle.

👁 Image
Block of quartz

• New building block.
• Made by using 4 pieces of nether quartz in a square.

👁 Image
Chiseled quartz block

• New building block.
• Crafting recipe is 2 quartz slabs vertically.

👁 Image
Pillar quartz block

• New building block.
• Crafting recipe is 2 blocks of quartz vertically.

👁 Image
Quartz slabs

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

👁 Image
Quartz stairs

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

Minecart with TNT

• Triggered by activator rails.
• Crafting recipe is a TNT block on top of a minecart (allowing for creation in the 2×2 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.

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] <first>" and "[player] <first> and <last>".
    • <first> 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]
    • <last> 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.)

Anvils

• Improved naming of containers.
  • Renamed chests, trapped chests, dispensers, furnaces, brewing stands, and enchantment tables display the new name in their GUI where the normal name used to appear.

Hoppers

• Is now controllable by redstone – players can 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 redstone comparator is placed against it directly has changed.
  • 1 item gives 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 give a signal strength of 6, while 2 potions also give a signal strength of 6 (because a potion occupies one stack).

Lava

• Changed textures.
• Now flows more quickly in the Nether.
• Enclosed hidden lava springs now generate in the Nether.

Redstone comparator

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

Slabs

• The final "seamless" stone slab (and, by extension, smooth stone) has been removed as a result of the addition of quartz slabs.

Trapped chests

• Now in "Decoration Blocks" tab in Creative inventory.

Fireball

• The texture of fireballs has been accidentally changed from 👁 Image
  to 👁 Image
  .^[4]

General

• Improved naming of spawn eggs.
  • Mobs spawned from renamed eggs have the name of the egg and the names appear in the death message.
  • Mobs can now display their custom name as nametag using NBT data.

Skeletons

• Improved aiming.
• Now shoots from 15 blocks away, instead of 10.
• Accuracy changes with difficulty.

Mineshafts

• Changed the chests to minecarts with chests.

Language

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

Missing textures and models

• Changed the missing texture from 👁 Image
  to 👁 Image
  .
• Is now present in the texture atlases stitched_terrain.png and stitched_items.png.

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 – player can use an optional .txt to specify frame order and duration.
• Textures for animated blocks or items (water, lava, fire, nether portal, compass and clock) are no longer procedurally generated, and now have their own texture files.
• Existing texture packs are "automagically" converted.
• Vanilla textures are used if texture files are missing.

22 issues fixed

From released versions before 1.5

• MC-737 – Map scaling breaks the map sometimes.
• MC-1086 – [FIXED] Command block/Repeater acting weirdly.
• MC-1642 – Minecart noise gets stuck on long cart rides. Bumping, choppy sound.
• MC-1972 – Redstone torch sometimes update instantly (not the North/South quirk).
• MC-2257 – Minecraft VERY slow to join/update a server, takes LONG time to login (30 seconds/ 1 min).
• MC-2526 – Rain animation glitches through the ceiling.
• MC-2806 – Anvils will sometimes hit the edge of a block and break instead of being placed.
• MC-3597 – Floating minecart tracls when pushed by one-pulse piston.
• MC-3662 – Pistons and other Non-Solid blocks.
• MC-4752 – Failed to save player profile.
• MC-5691 – 1.4.6 - Windows 8 64x - Mouse: View issues/Accuracy error?
• MC-6131 – Crash upon reloading texture pack.
• MC-6699 – Reading Bytes in Minecraft code has a possible flaw.

From the 1.5 development versions

• MC-5722 – Destroying a Daylight Sensor by hand works as quick as with a pickaxe, but only using a pickaxe the item drops.
• MC-5777 – Game stop reading clicks when you are clicking very fast.
• MC-5788 – Inactive detector rail outputs redstone through block.
• MC-5874 – Shift left double-click doesn't work.

From the previous development version

• MC-5998 – Item duplication by using the hopper.
• MC-6125 – Adding an item to the chest decreases output signal level.
• MC-6165 – Comparators cannot determine if a container is empty.
• MC-6202 – Cacti grow extremely quickly.
• MC-6265 – Hoppers can be used as fuel in furnaces.