Struct LavaFluid 

pub struct LavaFluid;

Lava fluid implementation.

Implements FluidBehavior with lava-specific parameters and behaviors (world-dependent spread, uphill delay, lava/water chemistry, fizz sounds).

Implementations

impl LavaFluid

fn is_fast_lava(world: &Arc<World>) -> bool

Returns true if this world uses fast lava (nether-like).

pub(crate) fn entity_flow_scale(world: &Arc<World>) -> f64

Returns vanilla’s lava current scale for entity fluid pushing.

Trait Implementations

impl FlowingFluid for LavaFluid

fn spread_to( &self, world: &Arc<World>, pos: BlockPos, fluid_state: FluidState, direction: Direction, )

Performs the actual placement of fluid and schedules the tick.

fn base_tick( &self, world: &Arc<World>, pos: BlockPos, block_state: BlockStateId, current_fluid: FluidState, )

The base tick logic

fn base_spread( &self, world: &Arc<World>, pos: BlockPos, block_state: BlockStateId, fluid_state: FluidState, )

The base spread logic.

fn base_spread_to( &self, world: &Arc<World>, pos: BlockPos, fluid_state: FluidState, )

The base logic for placing a fluid into a specific adjacent block.

fn source_neighbor_count(&self, world: &Arc<World>, pos: BlockPos) -> u8

Returns the number of fluid sources in the 4-directional neighborhood of the given position.

fn spread_to_sides( &self, world: &Arc<World>, pos: BlockPos, block_state: BlockStateId, fluid_state: FluidState, )

Spreads the fluid to horizontal neighbors.

impl FluidBehavior for LavaFluid

fn can_be_replaced_with( &self, fluid_state: FluidState, world: &Arc<World>, pos: BlockPos, other_fluid: FluidRef, _direction: Direction, ) -> bool

Vanilla parity: LavaFluid.canBeReplacedWith(). Lava can be replaced if its effective height >= 0.444 and the replacer is water.

Uses get_height() (not raw amount / 9.0) so that falling lava (same fluid directly above → height = 1.0) is also correctly handled.

fn get_spread_delay( &self, world: &Arc<World>, pos: BlockPos, old_state: FluidState, new_state: FluidState, ) -> i32

Vanilla parity: LavaFluid.getSpreadDelay. Uphill lava spreads 4× slower with 3/4 probability.

“Uphill” means the target position (new_state) has a greater effective height than the source (old_state). Uses get_height() so that a falling lava source (height = 1.0) is correctly treated as “tall”.

fn before_destroying_block( &self, world: &Arc<World>, pos: BlockPos, _state: BlockStateId, )

Vanilla parity: LavaFluid.beforeDestroyingBlock() → fizz sound. Lava does NOT drop block items (unlike water).

fn entity_inside( &self, _world: &Arc<World>, _pos: BlockPos, _entity: &dyn Entity, effect_collector: &mut InsideBlockEffectCollector, )

Vanilla parity: LavaFluid.entityInside() clears freezing, ignites, then applies lava damage.

fn fluid_type(&self) -> FluidRef

Gets the fluid type for this behavior.

fn is_same(&self, fluid: FluidRef) -> bool

Checks if this fluid is the same type as another fluid ref.

fn tick_delay(&self, world: &Arc<World>) -> i32

Gets the number of ticks between fluid updates.

fn drop_off(&self, world: &Arc<World>) -> u8

Gets the amount of fluid level drop per horizontal block. Takes world because some fluids (lava) differ by dimension.

fn slope_find_distance(&self, world: &Arc<World>) -> u8

Gets the slope-search distance for horizontal spread. Takes world because some fluids (lava) differ by dimension.

fn explosion_resistance(&self) -> f32

Gets the explosion resistance of this fluid.

fn can_convert_to_source(&self, world: &Arc<World>) -> bool

Checks if this fluid can convert to a source block at the given position.

fn get_flow( &self, world: &Arc<World>, pos: BlockPos, fluid_state: FluidState, ) -> DVec3

Returns this fluid state’s vanilla flow vector at a position.

fn tick( &self, world: &Arc<World>, pos: BlockPos, block_state: BlockStateId, fluid_state: FluidState, )

Called every tick for fluid blocks.

fn spread( &self, world: &Arc<World>, pos: BlockPos, block_state: BlockStateId, fluid_state: FluidState, )

Called to calculate fluid spreading each tick.

fn random_tick(&self, world: &Arc<World>, pos: BlockPos)

Called on random tick for this fluid’s block. Used for lava fire spread.