Sculk Sensor

The sculk sensor is a block in the sculk family. It detects vibrations caused by actions and events in a radius around it and emits a redstone signal, and, if it was triggered by a player, also activates nearby sculk shriekers. Players can to avoid making vibrations and wool can be used to occlude and block them.
== Obtaining ==
=== Breaking ===
Sculk sensors can be mined with any tool enchanted with Silk Touch, but hoes are the quickest. If mined with a non-Silk Touch tool, they drop 5 experience instead.
=== Chest loot ===
=== Natural generation ===
Sculk sensors generate within the deep dark biome and ancient cities.
=== Post-generation ===
A sculk catalyst has a 9% chance of generating a sculk sensor on top of a sculk block.
== Usage ==
=== Crafting ingredient ===
Sculk sensors can be used to craft calibrated sculk sensors.
=== Light ===
A sculk sensor has a light level of 1. When active, it changes to a lighter block state without a change to the light level.
=== Vibration detection ===
Sculk sensors detect vibrations in an 8 block spherical radius around it. Vibrations are caused by various events, such as a player and mobs walking, placing or breaking blocks, gliding with elytra, items falling on the ground, a piston extending or a wet wolf shaking itself off. While sneaking, a player is not detected. Walking, falling, dropping items, or shooting a projectile all trigger the sensor.
When a vibration is made within the range of a sculk sensor, a signal travels from the vibration source to the sensor at a speed of one block per game tick (20 blocks per second). When the signal arrives, the sensor is activated for . The sensor cannot detect any other vibrations while activated or while a signal is traveling to it.
Sculk sensors have a cooldown period of after being placed or after deactivating. During this short cooldown period, they cannot detect vibrations. This prevents them from activating when a contraption it is powering is being unpowered.
Sculk sensors don't detect vibrations from other sculk sources or the warden.
Wool and carpets have a special interaction with sculk sensors. If a wool block is placed between a sensor and a vibration source, the sensor is not able to detect the placed wool nor vibrations behind it. Specifically, if the ray joining the cube centers of the sensor block and the vibration source passes through any wool blocks, the noise is muffled. If the ray passes diagonally through the edge between two blocks, either one or the other block may muffle it but not both. Sculk sensors are not able to detect footsteps or dropped items on wool blocks or carpet, and they are also unable to detect dropped items of wool and carpets.
Sculk sensors pass on the vibrations made by players to sculk shriekers within 8 blocks of the sensor. For example, an item dropped by a player triggers the shrieker, but an item dropped by a dispenser or from a broken block does not; a player flying around with elytra triggers the shrieker, but a bat flying around does not. Alarms can be blocked by wool placed in between the sensor and shrieker, similar to how wool can block vibrations from reaching the sensor itself.
=== Redstone emission ===
Sculk sensors emit a redstone signal when they are activated. The strength of the redstone signal is to the distance the vibration signal traveled – the closer the vibration is to the sculk sensor, the stronger the redstone signal is, so it reaches the maximum redstone signal strength when the vibration is directly on top of the sensor.
==== Vibration amplitudes ====
Each vibration in the game falls under a certain amplitude value. This value can be measured with a comparator. With the right contraption, the player could detect if a certain action has occurred or is occurring nearby.
===== 1.20.2 =====
Output	Vibration type 	Game event 	Description
1 	Step 	minecraft:step 	Player or entity steps
1 	Swim 	minecraft:swim 	Player or entity swims, boat paddles
1 	Flap 	minecraft:flap 	Entity flaps (bat)
1 	Resonate 1 	minecraft:resonate_1 	
2 	Projectile Land 	minecraft:projectile_land 	Projectile lands (snowball)
2 	Hit Ground 	minecraft:hit_ground 	Player or entity hits ground post-jump or fall
2 	Splash 	minecraft:splash 	Player or entity splashes. Entity entering water or bubble column
2 	Resonate 2 	minecraft:resonate_2 	
3 	Item Interact Finish	minecraft:item_interact_finish	Item Interaction (Shield, Spyglass, Bone Meal)
3 	Projectile Shoot 	minecraft:projectile_shoot 	Projectile Shoots (arrow)
3 	Instrument Play 	minecraft:instrument_play 	Goat Horn Plays
3 	Resonate 3 	minecraft:resonate_3 	
4 	Entity Action 	minecraft:entity_action 	Entity Roars (Ravager), Entity Shakes (wolf after swimming)
4 	Elytra Glide 	minecraft:elytra_glide 	Player glides
4 	Unequip 	minecraft:unequip 	Armor unequip in armor slot or stand
4 	Resonate 4 	minecraft:resonate_4 	
5 	Entity Dismount 	minecraft:entity_dismount 	Player Dismount
5 	Equip 	minecraft:equip 	Armor equip in armor slot or stand
5 	Resonate 5 	minecraft:resonate_5 	
6 	Entity Mount 	minecraft:entity_mount 	Player Mount (horse)
6 	Entity Interact 	minecraft:entity_interact 	Player interaction with entity (breeding)
6 	Shear 	minecraft:shear 	Shears a sheep
6 	Resonate 6 	minecraft:resonate_6 	
7 	Entity Damage 	minecraft:entity_damage 	Damage or death to entities (except armor stand)
7 	Resonate 7 	minecraft:resonate_7 	
8 	Drink 	minecraft:drink 	Player or entity drinks
8 	Eat 	minecraft:eat 	Player or entity eats
8 	Resonate 8 	minecraft:resonate_8 	
9 	Container Close 	minecraft:container_close 	Close container (Chest, shulkerbox, hopper)
9 	Block Close 	minecraft:block_close 	Door Close (trapdoor and fencegate)
9 	Block Deactivate 	minecraft:block_deactivate 	Lever or button deactivation
9 	Block Detach 	minecraft:block_detach 	Tripwire detachment
9 	Resonate 9 	minecraft:resonate_9 	
10 	Container Open 	minecraft:container_open 	Open Container
10 	Block Open 	minecraft:block_open 	Open Door
10 	Block Activate 	minecraft:block_activate 	Activate Blocks
10 	Block Attach 	minecraft:block_attach 	Attachment of Tripwire hook
10 	Prime Fuse 	minecraft:prime_fuse 	TNT or creeper activation
10 	Note Block Play 	minecraft:note_block_play 	Note Block Sounds
10 	Resonate 10 	minecraft:resonate_10 	
11 	Block Change 	minecraft:block_change 	Block Change (Chiseled Bookshelf, Lectern)
11 	Resonate 11 	minecraft:resonate_11 	
12 	Block Destroy 	minecraft:block_destroy 	Block Destruction
12 	Fluid Pickup 	minecraft:fluid_pickup 	Gathered Fluid (Water, honey bottle, powdered snow)
12 	Resonate 12 	minecraft:resonate_12 	
13 	Block Place 	minecraft:block_place 	Block Placement
13 	Fluid Place 	minecraft:fluid_place 	Fluid Placement
13 	Resonate 13 	minecraft:resonate_13 	
14 	Entity Place 	minecraft:entity_place 	Entity Placement via Spawn-egg, Mob Spawner, Armor Stand Placement, or Evoker magic
14 	Lightning Strike 	minecraft:lightning_strike 	Lightning Strike
14 	Teleport 	minecraft:teleport 	Endermen, Chorus Fruit, Shulker
14 	Resonate 14 	minecraft:resonate_14 	
15 	Entity Die 	minecraft:entity_die 	Armor Stand Dies, Firework Finishes
15 	Explode 	minecraft:explode 	TNT, End Crystal, Bed/Respawn Anchor, Creeper Explosion
15 	Resonate 15 	minecraft:resonate_15 	
=====Vibration resonance=====
When a sculk sensor detects a vibration, any adjacent block of amethyst will reemit a vibration on the same frequency that the sculk sensor detected.
=====Things which are not detected=====
The following occurrences, despite presumably causing physical motion, do not produce vibrations and therefore cannot be detected: 
*Blocks destroyed by a fluid flowing into their space
*Several blocks being destroyed due to their supporting block being removed:
**Rails
**Powered rails
**Detector rails
**Activator rails
**Redstone wire
**Redstone repeaters
** Redstone comparators
*Several cases where a dispenser fails to perform an action:
**Flint and steel not creating fire
**Bone meal not growing something
**Heads and carved pumpkins, if not equipped on something or placed
**Shulker boxes, if not placed
**Shears, if there's nothing to shear
**Glowstone, if it doesn't charge a respawn anchor
*Inserting an eye of ender into an end portal frame
*Usage of bone meal
*Eyes of ender breaking
*Ender Pearl TeleportationMC-261419
*Silverfish entering blocks
*Water and lava flowing into existing spaces, or drying up
*Changing the mode of a redstone comparator
*Dyes used on signs
*Ink sacs and glow ink sacs used on signs
*Changing the delay on a redstone repeater
*Changing the shape of a single unit of redstone wire
*Fire extinguished by rain
*Fire extinguished via splash water bottles
*Carrot crops eaten by rabbits
*Certain specific events at a distance of exactly seven blocks away:
**Falling blocks changing from entities to blocks
**Placing armor stands
**Breaking armor stands
**Using spawn eggs
The following cases have been confirmed to be intentional: 
*Axolotls being bred via tropical fish buckets
*Moss blocks replacing existing blocks
=== Piston interactivity ===
Sculk sensors are immovable. Pistons cannot push them, and sticky pistons cannot push or pull them. Slime blocks and honey blocks do not stick to sculk sensors and have no effect whether the slime block or honey block is being pushed or pulled.
== Sounds ==
A sculk sensor is silent if waterlogged. It can still detect vibration, but does not produce sounds itself.
=== Generic ===
=== Unique ===
:
:
== Data values ==
=== ID ===
:
:
=== Block states ===
=== Block data ===
A sculk sensor has a block entity associated with it that holds additional data about the block.
:
:
: See Bedrock Edition level format/Block entity format.
== Achievements ==
== Advancements ==
== History ==
== Issues ==
== Trivia ==
*"Sculk" is derived from "skulk", meaning "keep out of sight, typically with a sinister or cowardly motive".
*Originally the sculk sensor used to require 4 vibrations before it would emit a redstone signal which is the markings up the top, they would light up for each vibration received and would slowly go down after time.
== Gallery ==
JE_1.17_Development_Sculk_family.png|Multiple Sculk sensors with other sculk type of blocks on Minecraft Live.
JE_1.17_Dev_Sculk_family.jpg|Ditto. Screenshot by kingbdogz.
JE_1.17_Dev_Sculk_family_(cropped).png|Close look.
JE_1.17_Development_Piston_occluding.png|Wool occlusion.
JE_1.17_Development_Wireless_redstone_trapdoors.png|Sculk sensors as wireless redstone.
JE_1.17_Dev_Sculk_Sensor_under_rain.jpg|Sculk sensors are not affected by rain.
Sculk Forest.jpg|Sculk in a forest.
JE_1.17_Dev_Sculk_old_textures.jpg|Old textures.
JE_1.17_Dev_Sculk_new_textures.jpg|New textures.
JE_1.17_Dev_Pigs_under_sculk_chunk.jpg|Performance optimizing.
JE_1.17_Dev_Pigs_under_sculk_chunk_2.jpg|Ditto.
Sculk Snowball.jpg|Snowballs creating vibrations.
Sculk Sensor Cave.jpg|Sculk sensors in a cave.
Sculk Sensor Circuit.jpg|A contraption using a waterlogged sculk sensor.
Sculk_in_redstone.png|Sculk type of blocks in redstone category.
Trypophobia Sculk Sensor.jpg|Trypophobia sculk sensor.
== References ==
== External Links ==
* How to Use Sculk Sensors – Minecraft.net on February 2, 2023
Category:Experimental The Wild Update
Category:Natural blocks
Category:Utility blocks
Category:Redstone mechanics
Category:Mechanisms
Category:Mechanics
Category:Light sources
Category:Block entities
de:Sculk-Sensor
es:Sensor de sculk
fr:Capteur Sculk
it:Sensore di sculk
ja:スカルクセンサー
pl:Skulkowy czujnik
pt:Sensor de sculk
ru:Акустический датчик
zh:幽匿感测体