Minecraft Game Event

Game Event

Game events are produced by world activities; their vibrations can mostly be detected by sculk sensors.

Game Events and Vibrations

A game event records its position plus context entity (source entity) and context block (source block) — either may be absent (e.g. doors opened by redstone have no context entity). Each event creates a vibration with the event position as the source; if the source entity is a projectile, the vibration's source entity becomes the projectile's shooter.

Every game event has a vibration frequency, visible as the redstone signal strength of a sculk sensor hooked to a comparator (the table below gives the frequencies).

Monitoring

• Non-vibration systems (not saved to chunks; lost on unload): sculk catalysts detect entity_die within 8/10 blocks to spread sculk; allays detect jukebox_play / jukebox_stop_play within 10 blocks (Java) for dancing.
• Vibration system (saved to chunk data; renders vibration particles): managed by vibration listeners, each with a detection radius and listenable game events; receivers add further restrictions. Receivers:
  • Sculk sensor — radius 8, almost all events. Stepping on it (by a non-Warden entity) forces it to receive the step/sculk_patch event; it ignores block_place/block_destroy of itself.
  • Calibrated sculk sensor — radius 16, restricted by its redstone input signal.
  • Sculk shrieker — radius 8, listens to sculk_sensor_tendrils_clicking.
  • Allay — radius 16, listens to note_block_play.
  • Warden — radius 16, almost all events.

A vibration is detectable when: the source is within the listener's radius; the event is listenable; the source entity is not a Warden, not a spectator player, not sneaking (for hit_ground, projectile_shoot, step, swim, item_interact_start, item_interact_finish), and not an item entity containing wool/carpet; the source block is not wool/carpet; and no wool blocks the line between source and listener.

When a listener receives, it records the game time, source, distance, event, and source entity. One vibration per listener; simultaneous candidates are resolved by a vibration selector: nearest distance first, then highest frequency. The received vibration has a delay of ⌊distance⌋ ticks before taking effect, matching the particle travel time.

Game Event List

(Java: block sources at block center; entity sources usually at the feet. Bedrock: sources always at block coordinates of the entity's current block — head block while eating, foot block while walking. Contexts may be absent when executed by dispensers/redstone or wind bursts. Frequencies were fully reset in 23w12a.)

• block_activate (10) — block activation.
• block_attach (10) — block attachment.
• block_change (11) — block change (waxing/unwaxing a large copper chest fires once per half).
• block_close (9) — block closing.
• block_deactivate (9) — block deactivation.
• block_destroy (12) — block destroyed (not by water flow; support-requiring blocks like redstone wire destroyed by support removal don't fire).
• block_detach (9) — block detachment.
• block_open (10) — block opening.
• block_place (13) — block placed.
• bounce (2) — entity collides with a block/collidable entity without losing all velocity.
• container_close (9) / container_open (10) — container closing/opening.
• dispense_fail (10, Bedrock) — dispenser failure.
• drink (8) — drinking (any item with a consumable component using the drink animation, Java).
• eat (8) — eating (consumable with non-drink animation).
• elytra_glide (4) — gliding.
• entity_act (6, Bedrock) / entity_action (6, Java) — mob actions.
• entity_damage (7) — entity damaged.
• entity_die (15) — entity death.
• entity_dismount (5) — dismounting.
• entity_interact (6) — player-entity interactions (allay item give/take, feeding, mob buckets, iron golem repair, golden apples on zombie villagers, trading, shearing, equipping, mounting, commanding wolves/cats, name tags).
• entity_mount (6) — mounting.
• entity_move (1, Bedrock) — entity movement on a surface.
• entity_place (14) — entity placed.
• entity_roar (6, Bedrock) — ravager roar.
• equip (5) — equipping (Java: only slots replaced by items with the equippable component; other equips fire only unequip; includes villager trade display, witch potions, wandering trader potions/milk, allay held items, panda bamboo/cake, fox held items, piglin examining, dolphin pushing items; Bedrock: also fires on retrieving).
• explode (15) — explosion.
• flap (1) — airborne movement (chickens, allays, parrots, phantoms, the Ender Dragon, bees, bats, vexes).
• fluid_pickup (12) — fluid collected.
• fluid_place (13) — fluid placed.
• hit_ground (2) — landing on a surface.
• instrument_play (3, Java) — goat horn playing.
• item_interact_finish (3) — finishing item use (depends on the use_effects component; tridents don't; totem death_protection also fires it).
• item_interact_start (3) — starting item use (same use_effects rule).
• jukebox_play (—, Java) — jukebox playing (fires every tick).
• jukebox_stop_play (—, Java) — jukebox stops.
• lightning_strike (14) — lightning strike.
• multi_item_swap (6, Bedrock) — swapping inventory items with a shelf.
• note_block_play (10) — note block plays.
• piston_contract (9, Bedrock) — piston retracts.
• piston_extend (10, Bedrock) — piston extends.
• prime_fuse (10) — priming (TNT).
• projectile_land (2) — projectile hits something.
• projectile_shoot (3) — projectile fired.
• sculk_patch (1, Bedrock) — stepping on a sculk sensor (default only detectable by the stepped sensor).
• sculk_sensor_tendrils_clicking (—) — sensor activation (default only by shriekers).
• shear (6) — shearing.
• shriek (—) — shrieker activation (Java default only by Wardens).
• single_item_swap (3, Bedrock) — single item swap with a shelf.
• splash (2) — moving from air into water.
• step (1, Java) — stepping.
• swim (1) — swimming.
• teleport (14) — teleporting (/tp and ender pearls do NOT fire it).
• unequip (4) — unequipping (Java: same detection as equip; Bedrock: armor only).