Minecraft:Java Edition 18w16a

18w16a is the thirty-second Minecraft:snapshot for Minecraft:Java Edition 1.13, released on April 19, 2018,<ref>Template:Snap</ref> which adds the Minecraft:Buffet world type and fixes bugs.

Additions

General

Minecraft:World types

• Minecraft:Buffet
  • Creates single-biome worlds.
  • Allows choosing between Minecraft:Overworld and End terrain generation.
  • Another way to generate chunks (checkerboard) is available by using an NBT Editor to open a Buffet world's level.dat, and using the following code for "generatorOptions":<syntaxhighlight inline lang="json">{"biome_source":{"type":"minecraft:checkerboard","biomes":[]},"chunk_generator":{"type":""}}</syntaxhighlight>.

Changes

Blocks

Minecraft:Coral fans

• Now generate in Minecraft:coral reefs, on the sides of Minecraft:coral blocks.

Minecraft:Blue ice

• Is now slightly less slippery.

Minecraft:Coral blocks

• Now require Minecraft:Silk Touch to drop as items when mined, otherwise they drop dead coral blocks.
• No longer instantly turn into dead coral when on land.

Minecraft:Conduit

• Particles are now blue instead of orange.

Mobs

Minecraft:Drowned

• Can now spawn extra in Minecraft:underwater ruins, besides their regular spawning in the oceans.

Gameplay

Minecraft:Water

• When water spreads and would later turn into a source block, it now immediately just places a source block instead of flowing into the block first.
  • This means that water can now also spread into waterloggable blocks.

Minecraft:Water Breathing

• When given from Minecraft:turtle shells, it no longer shows particles.

General

Optimizations

• Optimized world spawn position–finding code.

Block and item tags

• New valid_spawn block tag for blocks that the player can spawn on.
• New block and item tags for coral.

Minecraft:Ticks

• There is now a distinction between scheduled "liquid ticks" and "block ticks".

Minecraft:Biomes

• Changed how the temperature of ocean biomes is calculated; should result in nicer transitions between oceans.
• Biome names are now translatable.
• Updated some biome names:

Minecraft:Resource location	Old name	New name
hell	Hell	Nether
frozen_ocean	FrozenOcean	Frozen Ocean
frozen_river	FrozenRiver	Frozen River
mushroom_island	MushroomIsland	Mushroom Island
mushroom_island_shore	MushroomIslandShore	Mushroom Island Shore
desert_hills	DesertHills	Desert Hills
forest_hills	ForestHills	Forest Hills
taiga_hills	TaigaHills	Taiga Hills
jungle_hills	JungleHills	Jungle Hills
jungle_edge	JungleEdge	Jungle Edge
mesa_rock	Mesa Plateau F	Mesa Forest Plateau
mutated_desert	Desert M	Mutated Desert
mutated_extreme_hills	Extreme Hills M	Mutated Extreme Hills
mutated_taiga	Taiga M	Mutated Taiga
mutated_swampland	Swampland M	Mutated Swampland
mutated_jungle	Jungle M	Mutated Jungle
mutated_jungle_edge	JungleEdge M	Mutated Jungle Edge
mutated_birch_forest	Birch Forest M	Mutated Birch Forest
mutated_birch_forest_hills	Birch Forest Hills M	Mutated Birch Forest Hills
mutated_roofed_forest	Roofed Forest M	Mutated Roofed Forest
mutated_taiga_cold	Cold Taiga M	Mutated Cold Taiga
mutated_redwood_taiga_hills	Redwood Taiga Hills M	Mutated Redwood Taiga Hills
mutated_extreme_hills_with_trees	Extreme Hills+ M	Mutated Extreme Hills+
mutated_savanna	Savanna M	Mutated Savanna
mutated_savanna_rock	Savanna Plateau M	Mutated Savanna Plateau
mutated_mesa_clear_rock	Mesa Plateau M	Mutated Mesa Plateau
mutated_mesa_rock	Mesa Plateau F M	Mutated Mesa Forest Plateau

Trivia

• Unlike most of the first-of-the-week snapshots, this was released on a Thursday instead of Wednesday, similar to the snapshots before Minecraft:14w26a.