Minecraft Snapshot 20W49A will be the latest update deployed ahead of the Caves and Cliffs update that was announced earlier this year. Since the Snapshots are the testbed for new features in Java edition, things are about to change a fair bit. The new Snapshot will debut soon and bring with it technical fixes and changes to other game mechanics.
The first of the new cave biomes, the Dripstone Caves, will be added as part of the patch. The topography of the biome is unlike the caves you’re used to. New stalagmites, stalactites, and columns made from the new Dripstone will be common, as will formations of various types of other stones common in caves. Expect Mojang to drip-feed biomes in successive patches.
Sculk Sensors are a new item being tested in Minecraft Snapshot 20W49A. in the new underground biomes they will essentially act as seismographs with the ability to detect incoming threats and shifts in the underground landscape. There’s a whole unique interaction planned here with vibrations and vibration frequencies that the Sculk Sensors pick up based on intensity and proximity. Frequency values range from 1 to 15 and have a variety of impacts based on the source. You can even use Wool Blocks to insulate the Sensor from vibrations to focus its attention in a certain direction. These can also be used to transfer Redstone signals as they can emit them.
Minecraft Snapshot 20W49A Patch Notes
CHANGES IN 20W49A
- The fullness of a bundle now shows up regardless of whether advanced tooltips are on or off.
- Stalactites and stalagmites merge if the tips are next to each other unless you press shift while placing.
TECHNICAL CHANGES IN 20W49A
- A new game event system has been implemented to support Sculk Sensors detecting vibrations.
- World height-related values are now exposed for customized worlds.
- Removed the max-build-height server setting.
- Added occludes_vibration_signals block tag. Anything in this tag will occlude vibrations, and inherits wool tag entries by default.
- New particle types: vibration and dust_color_transition
- A new game event system has been implemented to support Sculk Sensors detecting vibrations.
GAME EVENTS
This system has been developed to identify when certain in-world actions are happening in nearby chunks, particularly so the new sculk sensor can detect these events as vibrations.
The following is a list of the initial game events:
minecraft:step
minecraft:swim
minecraft:flap
minecraft:elytra_free_fall
minecraft:hit_ground
minecraft:splash
minecraft:projectile_shoot
minecraft:projectile_land
minecraft:entity_hit
minecraft:block_place
minecraft:block_destroy
minecraft:fluid_place
minecraft:fluid_pickup
minecraft:block_open
minecraft:block_close
minecraft:block_switch
minecraft:block_unswitch
minecraft:block_attach
minecraft:block_detach
minecraft:block_press
minecraft:block_unpress
minecraft:container_open
minecraft:container_close
minecraft:explode
minecraft:armor_stand_add_item
minecraft:wolf_shaking
minecraft:dispense_fail
minecraft:fishing_rod_cast
minecraft:fishing_rod_reel_in
minecraft:piston_extend
minecraft:piston_contract
minecraft:flint_and_steel_use
minecraft:eating_start
minecraft:eating_finish
minecraft:lightning_strike
TAGS
There are also game event tags that come with this and can be modified by data packs. They can be found under data/minecraft/tags/game_events
.
vibrations
Determines which game events are considered vibrations by the Sculk Sensor. Currently, all added game events are in this tag by default.ignore_vibrations_stepping_carefully
Which game events should be ignored by the Sculk Sensor when the source of the event is sneaking.
The following game events are in ignore_vibrations_stepping_carefully
by default:
minecraft:step
minecraft:hit_ground
minecraft:projectile_shoot
FIXED BUGS IN 20W49A
- MC-18880 – The Absorption effect has no texture for poison/wither hearts (appears empty instead)
- MC-201840 – Optional function tags sometimes don’t run even when the tag exists
- MC-203797 – Placing or removing a block over the void causes a DecoderException on servers
- MC-204314 – Double copper slabs only drop a single slab when mined
- MC-205043 – Absorption hearts appear broken when taking freezing damage
- MC-205096 – Hardcore hearts lose all color when player is taking freeze damage
- MC-205391 – Waxing cut copper doesn’t prevent it from oxidising
- MC-205629 – Unused sign cache when rendering signs
- MC-206553 – Pointed Dripstone creates water particles in the Nether
- MC-206563 – Pointed dripstone is not connected to the player’s hand
- MC-206578 – Large pillars of stalactites don’t fall when the block above is removed
- MC-206583 – Cauldrons below stalactites at least 2 blocks tall won’t fill up
- MC-206591 – Setting any floating block to a pointed dripstone, causes the replaced block to drop as an item
- MC-206594 – Large stalactites falling occasionally don’t drop all of their pointed dripstone items
- MC-206599 – Pointed dripstone can be placed atop each other, even if a player would be inside the hitbox of the lower dripstone
- MC-206606 – Frustum stage of stalactites negates fall damage
- MC-206613 – Pointed Dripstone duplicates when the block it was attached to is removed
- MC-206615 – Pointed dripstone’s hitbox can extend further than a block, causing nearby stalactites to not be able to fall
- MC-206642 – Stalactites destroy items they fall on, however stalagmites don’t
- MC-206643 – When a dripstone’s hitbox extends into the space of another block, the area that extends into said block cannot be targeted
- MC-206669 – Inconsistency between dripstone and non-mob entities
- MC-206682 – Floating dripstone tips are sometimes left behind from large dripstone pillars
- MC-206691 – Pointed dripstone replaces items with pointed dripstone items
- MC-206711 – Coding error at net.minecraft.world.entity.Entity.resetPos()
- MC-206790 – Waterlogged dripstone does not update
- MC-206878 – Pointed dripstone attached to a piston is not removed as the piston extends
Source: Mojang