Minecraft:Java Edition 13w01a

13w01a is the first Minecraft:snapshot for Minecraft:Java Edition 1.5, released on January 3, 2013.<ref>https://web.archive.org/web/20130106004940/http://www.mojang.com/2013/01/minecraft-snapshot-13w01a/</ref> It mainly added an assortment of new Minecraft:redstone components. This is the first snapshot released in 2013.

Additions

Blocks

File:Nether Quartz Ore JE1 BE1.png Minecraft:Nether quartz ore

• New ore exclusive to the Nether.
• Drops 1 Minecraft:Nether quartz item when mined.
• Generates around Minecraft:netherrack.

File:Block of Redstone JE1 BE1.png Minecraft:Block of redstone

• Stores redstone dust similar to Minecraft:blocks of diamond, etc.
• Emits constant redstone power.
• Works as a pushable redstone power source.

File:Daylight Detector.png Minecraft:Daylight sensors

• Output power while receiving sunlight.
• The level varies depending on the time (more sunlight = more redstone power), and it does not function at night.

File:Hopper (D) JE1.png Minecraft:Hoppers

• Places and takes out items in hoppers, Minecraft:chests, Minecraft:furnaces, Minecraft:minecarts with chests, Minecraft:dispensers, and Minecraft:brewing stands.
• Allows for the automation of many processes.
• Still a work in progress (as indicated by the inventory icon File:Hopper (item) JE1.png).

File:Redstone Comparator (S) JE1.png Minecraft:Redstone comparator

• Has 3 inputs and 1 output. Input from the back is considered signal A, and whichever side gives the stronger signal is considered signal B.
• Has 2 modes: comparison and subtraction.
• In comparison mode, if A≥B, the output is A, otherwise output stays off.
• In subtraction mode, if A≥B, the output is A-B, otherwise output stays off.
• Replacement for the "capacitor" idea.

File:Trapped Chest.gif Minecraft:Trapped chests

• Gives out a signal depending on the amount of players looking inside. 1 player = 1 strength signal, 2 players = 2, etc.
• Crafted with a Minecraft:chest and a Minecraft:tripwire hook.
• Large trapped chests can be staggered with large chests to allow more compact storage.
• Texture is slightly different than a normal chest, with a red stain around the latch.

File:Light Weighted Pressure Plate JE1 BE1.png File:Heavy Weighted Pressure Plate JE1 BE1.png Minecraft:Weighted pressure plates

• Detects item stacks.
• Gold version reaches full strength at 60 items.
• Iron version reaches full strength at 600 items.
• Linear, so 10 strength signal means twice as many items as a 5 strength signal.

Items

File:Nether Brick JE1 BE1.png Minecraft:Nether brick

• Used for crafting Minecraft:Nether bricks.
• Obtained by smelting Minecraft:netherrack.

File:Nether Quartz JE1 BE1.png Minecraft:Nether quartz

• Item dropped from Minecraft:Nether quartz ore.

Changes

Blocks

File:Locked chest JE4.png Minecraft:Locked chests

• Texture for the block was changed from File:Locked chest JE3.png.

Minecraft:Pistons

• Are more stable from previous versions.
  • Sticky pistons are less sticky.Template:Info needed

Minecraft:Redstone circuits

• Are now more consistent.

Items

General

• Now shows the item name in-game.

Gameplay

Minecraft:Death messages

• Now show the weapon someone was killed with.Template:Info needed

Inventory management

• Double-click items to fill the stack up as much as possible.
• Drag item stacks around to divide them up over the dragged-over slots.
• Drag item stacks around with the right mouse button to place one of that stack in each dragged-over slot, if that slot is not occupied already.
• Shift double-click an item stack to move all other item stacks of that kind to that part of the inventory.
• Press Template:Key while the mouse is over an item in the inventory or a container to drop it.

Bugs

• [MC-5711] Redstone torches attached to the side of a block do not pop off if the block supporting them is destroyed.
• [MC-5721] Dragging to spread an item out in the Creative inventory, then clicking on the inventory tab, and placing the 0 stack item down, the game crashes.
• [MC-5728] Infinite loop caused by subtraction mode comparators causes the world to be unplayable.
• Mineral duplication: players can exponentially dupe minerals by putting then in a crafting table with a block of their material, then double clicking on a mineral in the crafting table, works on the same principle as the method below.
• Crafted item duplication: any stackable crafted item can be duplicated by setting up its recipe in a crafting table, then double clicking an existing version of this item in the inventory. Requires at least one of that item to be present in the inventory.

Gallery

• A bug with torches in this version.
  A bug with torches in this version.

Trivia

• Along with Minecraft:18w01a, 13w01a was released on the earliest calendar year out of all snapshots, on January 3.
  • Until this point, the snapshot released on the earliest calendar year out of all snapshots was Minecraft:12w01a on January 5.
• 13w01a is the first snapshot to feature a Minecraft:version banner alongside the official changelog.