Data values

This article is about data values found in the latest unmodified PC version of Minecraft. For data values added by mods, see Mods/Data values. For data values found in Classic, see Data values (Classic). For data values found in Pocket Edition, see Data values (Pocket Edition).

These data values refer to the different types of blocks and items. They are used in many, many places in Minecraft. Block IDs are used to define blocks placed in the world and inventory items (including items in chests and items dropped in the world). Item IDs are only valid for items. Each inventory slot has a unique slot number. In a Beta world, Block data further defines blocks placed, describing for example the height of water or the direction a torch points.

Contents 1 IDs 1.1 Block IDs (Minecraft Official Release) 1.2 Item IDs 1.3 Entity IDs 2 Inventory Slot Number 3 Data 3.1 Wood 3.2 Fire 3.3 Leaves 3.4 Coal 3.5 Jukebox 3.6 Saplings 3.6.1 Prior to Beta 1.5 3.6.2 Beta 1.5 and after 3.7 Cactus 3.8 Sugar Canes 3.9 Water and Lava 3.10 Farmland 3.11 Crops 3.12 Nether Wart 3.13 Pumpkin stem and Melon stem 3.14 Wool 3.15 Dyes 3.16 Torches and Redstone Torches 3.17 Rails 3.18 Stairs 3.19 Levers 3.20 Doors 3.21 Buttons 3.22 Sign Posts 3.23 Ladders, Wall Signs, Furnaces, Dispensers and Chests 3.24 Pumpkins and Jack-O-Lanterns 3.25 Pressure Plates 3.26 Slab and Double Slab material 3.27 Snow 3.28 Cake 3.29 Beds 3.30 Redstone Repeater 3.31 Redstone Wire 3.32 Tall Grass 3.33 Trapdoors 3.34 Piston 3.35 Piston Extension 3.36 Stone Brick 3.37 Huge brown and red mushroom 3.38 Vines 3.39 Fence Gates 3.40 Hidden Silverfish 3.41 Potions 3.41.1 "Potion name" bits 3.41.2 "Potion effect" bits 3.41.3 "Tier" bit 3.41.4 "Extended duration" bit 3.41.5 "Splash potion" bit 3.42 Brewing Stand 3.43 Cauldron 3.44 End Portal Frame 3.45 Spawn Eggs

IDs

Block IDs (Minecraft Official Release)

These values apply to both inventory items and to blocks placed in the world. This reflects the most recent version.

D	Requires additional data from the saved game's Data array to fully define the block.
I	Has a different ID as an inventory item.
B	Requires additional data in the item's Damage field to fully define the inventory item.
T	Requires a tile entity to store additional data.
Red	Cannot be legitimately obtained. Only available using the /give command or via inventory editors.
Light Blue	Cannot be obtained ever.
Blue	Only available in Creative mode.
Green	Only available by having Enchanted tools or in Creative mode.
Yellow-green	Only available by having Enchanted tools, but unobtainable in Creative mode.

Icon	Dec	Hex	Block type
	00	00	Air
	01	01	Stone
	02	02	Grass Block
	03	03	Dirt
	04	04	Cobblestone
	05	05	Wooden Planks
	06	06	Saplings D B
	07	07	Bedrock
	08	08	Water D
	09	09	Stationary water D
	10	0A	Lava D
	11	0B	Stationary lava D
	12	0C	Sand
	13	0D	Gravel
	14	0E	Gold Ore
	15	0F	Iron Ore
	16	10	Coal Ore
	17	11	Wood D B
	18	12	Leaves D B
	19	13	Sponge
	20	14	Glass
	21	15	Lapis Lazuli Ore
	22	16	Lapis Lazuli Block
	23	17	Dispenser D T
	24	18	Sandstone
	25	19	Note Block T
	26	1A	Bed D I
	27	1B	Powered Rail D
	28	1C	Detector Rail D
	29	1D	Sticky Piston D
	30	1E	Cobweb
	31	1F	Tall Grass D

Icon	Dec	Hex	Block type
	32	20	Dead Bush
	33	21	Piston D
	34	22	Piston Extension D
	35	23	Wool D B
	36	24	Block moved by Piston T
	37	25	Dandelion
	38	26	Rose
	39	27	Brown Mushroom
	40	28	Red Mushroom
	41	29	Block of Gold
	42	2A	Block of Iron
	43	2B	Double Slabs D B
	44	2C	Slabs D B
	45	2D	Bricks
	46	2E	TNT
	47	2F	Bookshelf
	48	30	Moss Stone
	49	31	Obsidian
	50	32	Torch D
	51	33	Fire D
	52	34	Monster Spawner T
	53	35	Wooden Stairs D
	54	36	Chest D T
	55	37	Redstone Wire D I
	56	38	Diamond Ore
	57	39	Block of Diamond
	58	3A	Crafting Table
	59	3B	Wheat Seeds D
	60	3C	Farmland D
	61	3D	Furnace D T
	62	3E	Burning Furnace D T
	63	3F	Sign Post D I T

Icon	Dec	Hex	Block type
	64	40	Wooden Door D I
	65	41	Ladders D
	66	42	Rails D
	67	43	Cobblestone Stairs D
	68	44	Wall Sign D T
	69	45	Lever D
	70	46	Stone Pressure Plate D
	71	47	Iron Door D I
	72	48	Wooden Pressure Plate D
	73	49	Redstone Ore
	74	4A	Glowing Redstone Ore
	75	4B	Redstone Torch ("off" state) D
	76	4C	Redstone Torch ("on" state) D
	77	4D	Stone Button D
	78	4E	Snow D
	79	4F	Ice
	80	50	Snow Block
	81	51	Cactus D
	82	52	Clay Block
	83	53	Sugar Cane D I
	84	54	Jukebox D T
	85	55	Fence
	86	56	Pumpkin D
	87	57	Netherrack
	88	58	Soul Sand
	89	59	Glowstone Block
	90	5A	Portal
	91	5B	Jack-O-Lantern D
	92	5C	Cake Block D I
	93	5D	Redstone Repeater ("off" state) D I
	94	5E	Redstone Repeater ("on" state) D I
	95	5F	Locked Chest

Icon	Dec	Hex	Block type
	96	60	Trapdoor D
	97	61	Hidden Silverfish D
	98	62	Stone Bricks D B
	99	63	Huge Brown Mushroom D
	100	64	Huge Red Mushroom D
	101	65	Iron Bars
	102	66	Glass Pane
	103	67	Melon
	104	68	Pumpkin Stem D
	105	69	Melon Stem D
	106	6A	Vines D
	107	6B	Fence Gate D
	108	6C	Brick Stairs D
	109	6D	Stone Brick Stairs D
	110	6E	Mycelium
	111	6F	Lily Pad
	112	70	Nether Brick
	113	71	Nether Brick Fence
	114	72	Nether Brick Stairs D
	115	73	Nether Wart D I
	116	74	Enchantment Table T
	117	75	Brewing Stand D T I
	118	76	Cauldron D I
	119	77	End Portal T
	120	78	End Portal Frame D
	121	79	End Stone
	122	7A	Dragon Egg

Item IDs

All items have values above 255, making it easy to separate the Block IDs from the Item IDs. Entries marked with a ^D require additional data to fully define the item in a Beta world. The chainmail set is currently unobtainable in Survival mode without hacking or, in multiplayer, the /give server command. It is available in Creative mode, however.

Icon	Dec	Hex	Item
	256	100	Iron Shovel
	257	101	Iron Pickaxe
	258	102	Iron Axe
	259	103	Flint and Steel
	260	104	Red Apple
	261	105	Bow
	262	106	Arrow
	263	107	Coal D
	264	108	Diamond
	265	109	Iron Ingot
	266	10A	Gold Ingot
	267	10B	Iron Sword
	268	10C	Wooden Sword
	269	10D	Wooden Shovel
	270	10E	Wooden Pickaxe
	271	10F	Wooden Axe
	272	110	Stone Sword
	273	111	Stone Shovel
	274	112	Stone Pickaxe
	275	113	Stone Axe
	276	114	Diamond Sword
	277	115	Diamond Shovel
	278	116	Diamond Pickaxe
	279	117	Diamond Axe
	280	118	Stick
	281	119	Bowl
	282	11A	Mushroom Soup
	283	11B	Gold Sword
	284	11C	Gold Shovel
	285	11D	Gold Pickaxe
	286	11E	Gold Axe
	287	11F	String

Icon	Dec	Hex	Item
	288	120	Feather
	289	121	Gunpowder
	290	122	Wooden Hoe
	291	123	Stone Hoe
	292	124	Iron Hoe
	293	125	Diamond Hoe
	294	126	Gold Hoe
	295	127	Seeds
	296	128	Wheat
	297	129	Bread
	298	12A	Leather Cap
	299	12B	Leather Tunic
	300	12C	Leather Pants
	301	12D	Leather Boots
	302	12E	Chain Helmet
	303	12F	Chain Chestplate
	304	130	Chain Leggings
	305	131	Chain Boots
	306	132	Iron Helmet
	307	133	Iron Chestplate
	308	134	Iron Leggings
	309	135	Iron Boots
	310	136	Diamond Helmet
	311	137	Diamond Chestplate
	312	138	Diamond Leggings
	313	139	Diamond Boots
	314	13A	Gold Helmet
	315	13B	Gold Chestplate
	316	13C	Gold Leggings
	317	13D	Gold Boots
	318	13E	Flint
	319	13F	Raw Porkchop

Icon	Dec	Hex	Item
	320	140	Cooked Porkchop
	321	141	Paintings
	322	142	Golden Apple
	323	143	Sign
	324	144	Wooden door
	325	145	Bucket
	326	146	Water bucket
	327	147	Lava bucket
	328	148	Minecart
	329	149	Saddle
	330	14A	Iron door
	331	14B	Redstone
	332	14C	Snowball
	333	14D	Boat
	334	14E	Leather
	335	14F	Milk
	336	150	Clay Brick
	337	151	Clay
	338	152	Sugar Cane
	339	153	Paper
	340	154	Book
	341	155	Slimeball
	342	156	Minecart with Chest
	343	157	Minecart with Furnace
	344	158	Chicken Egg
	345	159	Compass
	346	15A	Fishing Rod
	347	15B	Clock
	348	15C	Glowstone Dust
	349	15D	Raw Fish
	350	15E	Cooked Fish
	351	15F	Dye D

Icon	Dec	Hex	Item
	352	160	Bone
	353	161	Sugar
	354	162	Cake
	355	163	Bed
	356	164	Redstone Repeater
	357	165	Cookie
	358	166	Map
	359	167	Shears
	360	168	Melon Slice
	361	169	Pumpkin Seeds
	362	16A	Melon Seeds
	363	16B	Raw Beef
	364	16C	Steak
	365	16D	Raw Chicken
	366	16E	Cooked Chicken
	367	16F	Rotten Flesh
	368	170	Ender Pearl
	369	171	Blaze Rod
	370	172	Ghast Tear
	371	173	Gold Nugget
	372	174	Nether Wart
	373	175	Potions D
	374	176	Glass Bottle
	375	177	Spider Eye
	376	178	Fermented Spider Eye
	377	179	Blaze Powder
	378	17A	Magma Cream
	379	17B	Brewing Stand
	380	17C	Cauldron
	381	17D	Eye of Ender
	382	17E	Glistering Melon
	383	17F	Spawn Egg D

Icon	Dec	Hex	Item
	384	180	Bottle o' Enchanting
	385	181	Fire Charge
	2256	8D0	13 Disc
	2257	8D1	Cat Disc
	2258	8D2	blocks Disc
	2259	8D3	chirp Disc
	2260	8D4	far Disc
	2261	8D5	mall Disc
	2262	8D6	mellohi Disc
	2263	8D7	stal Disc
	2264	8D8	strad Disc
	2265	8D9	ward Disc
	2266	8DA	11 Disc

Entity IDs

Icon	Dec	Hex	Entity
Drops
	1	01	Dropped item
	2	02	Experience Orb
Projectiles
	10	0A	Shot arrow
	11	0B	Thrown snowball
	12	0C	Ghast fireball
	13	0D	Blaze fireball
	14	0E	Thrown Ender Pearl
	15	0F	Thrown Eye of Ender
Blocks
	20	14	Primed TNT
	21	15	Falling block (gravel, sand)
Vehicles
	40	28	Minecart
	41	29	Boat

Icon	Dec	Hex	Entity
Hostile mobs
	50	32	Creeper
	51	33	Skeleton
	52	34	Spider
	53	35	Giant
	54	36	Zombie
	55	37	Slime
	56	38	Ghast
	57	39	Zombie Pigman
	58	3A	Enderman
	59	3B	Cave Spider
	60	3C	Silverfish
	61	3D	Blaze
	62	3E	Magma Cube
	63	3F	Enderdragon

Icon	Dec	Hex	Entity
Passive mobs
	90	5A	Pig
	91	5B	Sheep
	92	5C	Cow
	93	5D	Chicken
	94	5E	Squid
	95	5F	Wolf
	96	60	Mooshroom
	97	61	Snow Golem
	98	62	Ocelot
NPCs
	120	78	Villager
Other
	200	C8	Ender Crystal

Inventory Slot Number

Data

Special data for certain block and item types. Storage differs according to level format.

Block	dec	hex	Use
Wood	0-3	0-3	Wood Texture
Fire	0-15	0-F	Age in some fraction of a second
Leaves	0-3	0-3	Leaves Texture
Jukebox	0-11	0-B	Disc in jukebox
Saplings	0-15	0-F	Age / Tree Type
Cactus	0-15	0-F	Age
Sugar Canes	0-15	0-F	Age
Water and Lava	0-15	0-F	Fluid level
Soil/Farmland	0-8	0-8	Wetness
Crops	0-7	0-7	Crop size
Nether Wart	0-3	0-3	Nether Wart Size
Pumpkin and melon stem	0-7	0-7	Growth stage
Wool	0-15	0-F	Color
Dyes	0-15	0-F	Dye Color
Torches and Redstone Torches	0-5	0-5	Torch orientation
Rails (reg, powered, detect)	0-9	0-9	Rail slope, orientation, power
Stairs	0-3	0-3	Stair orientation
Levers	6-14	6-E	Lever orientation and thrown state
Doors	0-15	0-F	Hinge corner position and swing state
Buttons	0-15	0-F	Button orientation
Sign Posts	0-15	0-F	Sign orientation
Ladders, Wall Signs, Furnaces, Dispensers, Chests	2-5	2-5	Orientation
Pumpkins and Jack-O-Lanterns	0-3	0-3	Pumpkin orientation
Pressure Plates	0-1	0-1	Whether it's pressed
Coal	0-1	0-1	Type of coal (mined coal or charcoal)
Tools and Armor	varies		Damage level
Slabs	0-3	0-3	Type of slab
Snow	0-15	0-F	Block height
Cake	0-5	0-5	Pieces eaten
Bed	0-3, 8-11	0-3, 8-B	Orientation and head/foot
Redstone Repeater	0-15	0-F	Orientation and delay
Redstone Wire	0-15	0-F	Power level
Tall Grass	0-2	0-2	Appearance (grass, fern, dead shrub)
Trapdoors	0-7	0-7	Orientation and "swung" state
Piston	0-5, 8-13	0-5, 8-D	Orientation and "extended" state
Piston Extension	0-5, 8-13	0-5, 8-D	Orientation and "sticky" state
Stone Brick	0-3	0-3	Stronghold texture
Huge brown and red mushroom	0-10	0-A	Texture
Vines	0-15	0-F	Attached Surface
Fence Gates	0-7	0-7	Open/Closed, and direction
Potions	0-65535	0-FFFF	Potion Type
Brewing Stand	0-7	0-7	Slots used
Cauldron	0-3	0-3	Amount of water
End Portal Frame	0-1	0-1	Broken or Fixed

Wood

Icon	Value	Description
	0	Oak wood
	1	Pine/Spruce wood
	2	Birch wood
	3	Jungle wood

Fire

0x0 is a placed or spread fire. Once it reaches 0xF the eternal fire-trick will work since there will be no further updates of the block.

Leaves

If bit 0x4 is set, the leaves are permanent and will never decay. This bit is set on player-placed leaf blocks and overrides the meaning of bit 0x8.

If bit 0x8 is set, the leaves will be checked for decay. The bit will be cleared after the check if the leaves do not decay. The bit will be set again whenever a block adjacent to the leaves is changed.

Icon	Value	Description
	0	Oak leaves
	1	Pine/Spruce leaves
	2	Birch leaves
	3	Jungle leaves

Coal

Icon	Value	Description
	0	Coal
	1	Charcoal

Jukebox

Icon	Value	Description
	0	Nothing
	1	Gold Music Disc (13)
	2	Green Music Disc (cat)
	3	Orange Disc (blocks)
	4	Red Disc (chirp)
	5	Lime Green Disc (far)
	6	Purple Disc (mall)
	7	Violet Disc (mellohi)
	8	Black Disc (stal)
	9	White Disc (strad)
	10	Sea Green Disc (ward)
	11	Broken Disc (11)

Saplings

Prior to Beta 1.5

Prior to Beta 1.5, this data value was a counter which started at 0x0 (for a freshly-planted sapling) and was increased at random intervals. Once the counter hit 15, a new tree was created in its place.

Beta 1.5 and after

As of Beta 1.5, the data value is split in half. The bottom two bits now determine the type of sapling (and thus the eventual tree type), according to the following table:

Icon	Value	Description
	0	Oak Sapling
	1	Spruce Sapling
	2	Birch Sapling
	3	Dropped by Jungle Leaves, but otherwise is oak sapling
	4+	Same as 3, but never dropped

The top two bits function as the counter, as in pre-1.5 builds, though obviously there are only four values available in the remaining bits. Either the counter is incremented more slowly to compensate, or trees might just grow more quickly since the update.

Cactus

0x0 is a freshly planted cactus. The data value is incremented at random intervals. When it becomes 15, a new cactus block is created on top as long as the total height does not exceed 3.

Sugar Canes

0x0 is a freshly planted cane. The data value is incremented at random intervals. When it becomes 15, a new sugar cane block is created on top as long as the total height does not exceed 3.

Water and Lava

0x0 is a full block. Water goes up to 0x7, Lava goes up to 0x6 (using the steps 0x0, 0x2, 0x4 and 0x6). If bit 0x8 is set, this liquid is "falling" and only spreads downward.

Farmland

0x0 is dry land, 0x1-0x8 are increasing levels of wetness. The wetness value depends on how far the block is away from water.

Crops

Crops grow from 0x0 to 0x7.

Icon	Value
	0
	1
	2
	3
	4
	5
	6
	7

Nether Wart

Like Crops, the data value is related to the size of the Nether Wart. There are three distinct visual stages to Nether Wart's growth (the associated data values are given):

Icon	Value
	0
	1-2
	3

Pumpkin stem and Melon stem

Pumpkin and melon stems grow from 0x0 to 0x7. During each stage of growth a part of their model is revealed. In the last stage a stem can spawn a melon or pumpkin next to it on empty farmland. As long as this fruit remains the stem will appear bent towards the fruit.

Wool

These values specify the color of the wool. This data is stored in block metadata for placed wool, and as the "damage" for wool in the inventory.

Icon	Dec	Hex	Description
	0	0x0	Regular wool (white)
	1	0x1	Orange
	2	0x2	Magenta
	3	0x3	Light Blue
	4	0x4	Yellow
	5	0x5	Lime
	6	0x6	Pink
	7	0x7	Gray
	8	0x8	Light Gray
	9	0x9	Cyan
	10	0xA	Purple
	11	0xB	Blue
	12	0xC	Brown
	13	0xD	Green
	14	0xE	Red
	15	0xF	Black

Dyes

Icon Dec Hex Description 0 00 Ink Sac 1 01 Rose Red 2 02 Cactus Green 3 03 Cocoa Beans 4 04 Lapis Lazuli 5 05 Purple Dye 6 06 Cyan Dye 7 07 Light Gray Dye

Icon Dec Hex Description 8 08 Gray Dye 9 09 Pink Dye 10 0A Lime Dye 11 0B Dandelion Yellow 12 0C Light Blue Dye 13 0D Magenta Dye 14 0E Orange Dye 15 0F Bone Meal

Torches and Redstone Torches

• 0x1: Pointing east
• 0x2: Pointing west
• 0x3: Pointing south
• 0x4: Pointing north
• 0x5: Standing on the floor

Rails

Regular Minecart rails use values above 0x5 for the corner pieces. For powered rails, 0x8 is a bit flag indicating whether or not it is powered, and the bottom three bits have a valid range of 0x0 to 0x5.

• 0x0: flat track going north-south
• 0x1: flat track going west-east
• 0x2: track ascending to the east
• 0x3: track ascending to the west
• 0x4: track ascending to the north
• 0x5: track ascending to the south

Regular minecart tracks can make a circle from four rails:

• 0x6: northwest corner (connecting east and south)
• 0x7: northeast corner (connecting west and south)
• 0x8: southeast corner (connecting west and north)
• 0x9: southwest corner (connecting east and north)

Stairs

• 0x0: Ascending east
• 0x1: Ascending west
• 0x2: Ascending south
• 0x3: Ascending north

Levers

• 0x8: If this bit is set, the lever has been thrown and is providing power.

Wall levers:

• 0x1: Facing east
• 0x2: Facing west
• 0x3: Facing south
• 0x4: Facing north

Ground levers:

• 0x5: Lever points south when off.
• 0x6: Lever points east when off. (Note that unlike the other types of switch, this version didn't power wires around the block it was sitting on. This bug was fixed in Beta 1.6)

Doors

The two least significant bits are the orientation of the door, that is, the corner in which its hinge is positioned:

• 0x0: northwest corner
• 0x1: northeast corner
• 0x2: southeast corner
• 0x3: southwest corner

The two bits above are flags:

• 0x8: If this bit is set, this is the top half of a door (else the lower half).
• 0x4: If this bit is set, the door has swung counterclockwise around its hinge.

For example, the bottom half of a door with its hinge on the southwest corner, which is swung so that it is closed when viewed from the west, will have a data value of (3 | 4) = (3 + 4) = 7.

Buttons

• 0x8 If this bit is set, the button has been pressed. If this bit is set in a saved level, the button will remain pressed for an undefined length of time after the level is loaded.

Button direction:

• 0x1: Facing east
• 0x2: Facing west
• 0x3: Facing south
• 0x4: Facing north

Sign Posts

• 0x0: south
• 0x1: south-southwest
• 0x2: southwest
• 0x3: west-southwest
• 0x4: west
• 0x5: west-northwest
• 0x6: northwest
• 0x7: north-northwest
• 0x8: north
• 0x9: north-northeast
• 0xA: northeast
• 0xB: east-northeast
• 0xC: east
• 0xD: east-southeast
• 0xE: southeast
• 0xF: south-southeast

Ladders, Wall Signs, Furnaces, Dispensers and Chests

• 0x2: Facing north (for ladders and signs, attached to the north side of a block)
• 0x3: Facing south
• 0x4: Facing west
• 0x5: Facing east

Pumpkins and Jack-O-Lanterns

• 0x0: Facing south
• 0x1: Facing west
• 0x2: Facing north
• 0x3: Facing east

Pressure Plates

• 0x1: If this bit is set, the plate is pressed.

Slab and Double Slab material

Icon	Value	Description
	0x0	Stone Slab
	0x1	Sandstone Slab
	0x2	Wooden Slab
	0x3	Cobblestone Slab
	0x4	Brick Slab
	0x5	Stone Brick Slab
	0x6	Stone Slab

Snow

• 0x0: Normal snowfall height
• ...
• 0x7: Full block size height

The height repeats for values 8-15. Note that snow does not occur naturally at other heights than 0, but can be edited or hacked in. Values 0-2 has no hitbox, values 3-7 has the same hitbox as a slab.

Cake

• 0x0: 0 pieces eaten
• 0x1: 1 piece eaten
• 0x2: 2 pieces eaten
• 0x3: 3 pieces eaten
• 0x4: 4 pieces eaten
• 0x5: 5 pieces eaten

Beds

• 0x0: Head is pointing south
• 0x1: Head is pointing west
• 0x2: Head is pointing north
• 0x3: Head is pointing east

• 0x4: (bit flag) - When 0, the bed is empty. When 1, the bed is occupied.
• 0x8: (bit flag) - When 0, the foot of the bed. When 1, the head of the bed.

Redstone Repeater

Low (1st & 2nd) bits:

• 0x0: Facing north
• 0x1: Facing east
• 0x2: Facing south
• 0x3: Facing west

High (3rd & 4th) bits:

• 0x0: 1 tick delay
• 0x1: 2 tick delay
• 0x2: 3 tick delay
• 0x3: 4 tick delay

Redstone Wire

0xF is a wire placed right next to a power source (like a redstone torch). The value declines with distance until 0x0, which is a non-powered wire. The direction of the wire is not saved but calculated at runtime.

Tall Grass

Icon	Value	Description
	0x0	Dead shrub (identical in appearance to block Dead Bush when placed, but acts like Tall Grass)
	0x1	Tall grass
	0x2	Fern

Trapdoors

0x4 is a bit that determines whether or not the trapdoor is swung open. 0 for closed (on the ground), 1 for open (against its connecting wall). The remaining two bits describe which wall the trapdoor is attached to:

• 0x0: Attached to the south wall
• 0x1: Attached to the north wall
• 0x2: Attached to the east wall
• 0x3: Attached to the west wall

Piston

The top bit (0x8) is a status bit that determines whether the piston is pushed out or not. 1 for pushed out, 0 for retracted.

The bottom three bits are a value from 0 to 5, indicating the direction of the piston (the direction the piston head is pointing)

• 0: Down
• 1: Up
• 2: north
• 3: south
• 4: west
• 5: east

Piston Extension

The top bit (0x8) is a status bit that determines whether the head is sticky or not (note that the Piston Body actually has completely different block types for Sticky and Regular). 1 is sticky, 0 is regular.

The bottom three bits are a value from 0 to 5, indicating the direction of the piston (the direction the piston head is pointing).

• 0: Down
• 1: Up
• 2: north
• 3: south
• 4: west
• 5: east

Stone Brick

Icon	Value	Description
	0x0	Normal
	0x1	Mossy
	0x2	Cracked

Huge brown and red mushroom

Huge mushrooms consist of the same blocks throughout their structure, the data value of each block decides the texture. The default texture on all sides is porous flesh. The cap texture can be either the brown mushroom or red mushroom texture, the textures for porous and stem sides are identical.

Value	Description	Textures
0	Fleshy piece	Pores on all sides
1	Corner piece	Cap texture on top, west and north
2	Side piece	Cap texture on top and north
3	Corner piece	Cap texture on top, north and east
4	Side piece	Cap texture on top and west
5	Top piece	Cap texture on top
6	Side piece	Cap texture on top and east
7	Corner piece	Cap texture on top, south and west
8	Side piece	Cap texture on top and south
9	Corner piece	Cap texture on top, east and south
10	Stem piece	Stem texture on all four sides, pores on top and bottom

Vines

Determines the face against which the vine is anchored. Note that (except for Top) these are testable as bit flags, unlike most of the other directional data for other block types. Multiple sides can contain vines. The "top" attachment is assumed to be present if data is 0 or there is solid block above.

• 1: south
• 2: west
• 4: north
• 8: east

Fence Gates

0x4 is a bit flag: 1 is open, 0 is closed. The remaining two bits determine in which direction the gate will open.

• 0: To the south
• 1: To the west
• 2: To the north
• 3: To the east

Hidden Silverfish

A silverfish will hide inside a Stone, Cobblestone, or Stone Brick block, changing it into a Hidden Silverfish block. The data value tells us its appearance:

• 0: Stone
• 1: Cobblestone
• 2: Stone Brick

Potions

A Glass Bottle filled with a potion. Potion type is stored in item's damage value as a 16-bit number. Potion effect, name, and other flags are encoded on bits. Effect duration itself isn't there, but can be calculated from other values.

Current meaning of bits is described below. Note that potion name overlaps with potion effect and tier.

Bit	Dec	Hex	Meaning
0	1	0001	Potion effect	Potion name
1	2	0002
2	4	0004
3	8	0008
4	16	0010
5	32	0020	Tier
6	64	0040	Extended duration
7	128	0800	(ignored)
8	256	0100
9	512	0200
10	1024	0400
11	2048	0800
12	4096	1000
13	8192	2000
14	16384	4000	Splash potion
15	32768	8000	(ignored)

To calculate damage value of potion with desired effect use the following formula:

DV = potion_effect + tier_bit + extended_bit + splash_bit

for example:

• potion with "Instant Health" effect has damage value 5 (= 5 + 0 + 0 + 0);
• potion with extended "Slowness" effect has value 74 (= 10 + 0 + 64 + 0);
• splash potion with tier II "Strength" effect has value 16425 (= 9 + 32 + 0 + 16384).

To get potion with certain name, use the following formula:

DV = potion_name + extended_bit + splash_bit

for example:

• "Splash Charming Potion" has damage value 16422 (= 38 + 0 + 16384)

"Potion name" bits

Dec	Hex	Potion
0	00	Water Bottle / Mundane Potion
1	01	Potion of Regeneration
2	02	Potion of Swiftness
3	03	Potion of Fire Resistance
4	04	Potion of Poison
5	05	Potion of Healing
6	06	Clear Potion
7	07	Clear Potion
8	08	Potion of Weakness
9	09	Potion of Strength
10	0a	Potion of Slowness
11	0b	Diffuse Potion
12	0c	Potion of Harming
13	0d	Artless Potion
14	0e	Thin Potion
15	0f	Thin Potion

Dec	Hex	Potion
16	10	Awkward Potion
17	11	Potion of Regeneration
18	12	Potion of Swiftness
19	13	Potion of Fire Resistance
20	14	Potion of Poison
21	15	Potion of Healing
22	16	Bungling Potion
23	17	Bungling Potion
24	18	Potion of Weakness
25	19	Potion of Strength
26	1a	Potion of Slowness
27	1b	Smooth Potion
28	1c	Potion of Harming
29	1d	Suave Potion
30	1e	Debonair Potion
31	1f	Debonair Potion

Dec	Hex	Potion
32	20	Thick Potion
33	21	Potion of Regeneration II
34	22	Potion of Swiftness II
35	23	Potion of Fire Resistance
36	24	Potion of Poison II
37	25	Potion of Healing II
38	26	Charming Potion
39	27	Charming Potion
40	28	Potion of Weakness
41	29	Potion of Strength II
42	2a	Potion of Slowness
43	2b	Refined Potion
44	2c	Potion of Harming II
45	2d	Cordial Potion
46	2e	Sparkling Potion
47	2f	Sparkling Potion

Dec	Hex	Potion
48	30	Potent Potion
49	31	Potion of Regeneration II
50	32	Potion of Swiftness II
51	33	Potion of Fire Resistance
52	34	Potion of Poison II
53	35	Potion of Healing II
54	36	Rank Potion
55	37	Rank Potion
56	38	Potion of Weakness
57	39	Potion of Strength II
58	3a	Potion of Slowness
59	3b	Acrid Potion
60	3c	Potion of Harming II
61	3d	Gross Potion
62	3e	Stinky Potion
63	3f	Stinky Potion

Note: potion with name set to 0 is called "Water Bottle" only if no other bit is set. Otherwise, it is called "Mundane Potion".

Note: potions with splash potion bit set have additional "Splash " prefix.

"Potion effect" bits

Dec	Hex	Effect	Duration	Bottles	Icon	Effect color
0	0	-	-		-
1	1	Regeneration	0:45			Pink
2	2	Speed	3:00			Sky blue
3	3	Fire Resistance	3:00			Orange
4	4	Poison	0:45			Green
5	5	Instant Health	instant		-	-
6	6	-	-		-	-
7	7	-	-		-	-
8	8	Weakness	1:30			Grey
9	9	Strength	3:00			Dark red
10	a	Slowness	1:30			Blue-Grey
11	b	-	-		-	-
12	c	Instant Damage	instant		-	-
13	d	-	-		-	-
14	e	-	-		-	-
15	f	-	-		-	-

"Tier" bit

Dex	Hex	Meaning
0	0000	Tier I effect.
32	0020	Tier II effect. Multiply duration by 1/2.

Note: Fire Resistance, Weakness and Slowness effects have no second tier. Their strength and duration are unaffected by this bit.

"Extended duration" bit

Dex	Hex	Meaning
0	0000	Base duration.
64	0040	Multiply duration by 8/3.

"Splash potion" bit

Dex	Hex	Meaning
0	0000	Drinkable potion.
16384	4000	Splash potion. Multiply duration by 3/4.

Brewing Stand

The bottom three bits are bit flags for which bottle slots actually contain bottles. The actual bottle contents (and the reagent at the top) are stored in a TileEntity for this block, not in the data field.

• 0x1: The slot pointing east
• 0x2: The slot pointing southwest
• 0x4: The slot pointing northwest

Cauldron

The data value stores the amount of water kept in the cauldron, in units of glass bottles that can be filled.

• 0: Empty
• 1: 1/3 filled
• 2: 2/3 filled
• 3: Fully filled

End Portal Frame

The bottom two bits determine which "side" of the whole portal frame this block is a part of.

0x4 is a bit flag: 0 is an "empty" frame block, 1 is a block with an Eye of Ender inserted.

Spawn Eggs

Damage values on Spawn Eggs will cause it to spawn the Entity of that ID. For example, a damage value of 2 would cause the spawner egg to create Experience Orbs.

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