Code/net/minecraft/world/level/block/SculkBehaviour.java

package net.minecraft.world.level.block;

import java.util.Collection;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.util.RandomSource;
import net.minecraft.world.level.LevelAccessor;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.material.Fluids;

public interface SculkBehaviour {
    SculkBehaviour DEFAULT = new SculkBehaviour() {
        @Override
        public boolean attemptSpreadVein(
            LevelAccessor p_222048_, BlockPos p_222049_, BlockState p_222050_, @Nullable Collection<Direction> p_222051_, boolean p_222052_
        ) {
            if (p_222051_ == null) {
                return ((SculkVeinBlock)Blocks.SCULK_VEIN).getSameSpaceSpreader().spreadAll(p_222048_.getBlockState(p_222049_), p_222048_, p_222049_, p_222052_) > 0L;
            } else if (!p_222051_.isEmpty()) {
                return !p_222050_.isAir() && !p_222050_.getFluidState().is(Fluids.WATER)
                    ? false
                    : SculkVeinBlock.regrow(p_222048_, p_222049_, p_222050_, p_222051_);
            } else {
                return SculkBehaviour.super.attemptSpreadVein(p_222048_, p_222049_, p_222050_, p_222051_, p_222052_);
            }
        }

        @Override
        public int attemptUseCharge(
            SculkSpreader.ChargeCursor p_222054_,
            LevelAccessor p_222055_,
            BlockPos p_222056_,
            RandomSource p_222057_,
            SculkSpreader p_222058_,
            boolean p_222059_
        ) {
            return p_222054_.getDecayDelay() > 0 ? p_222054_.getCharge() : 0;
        }

        @Override
        public int updateDecayDelay(int p_222061_) {
            return Math.max(p_222061_ - 1, 0);
        }
    };

    default byte getSculkSpreadDelay() {
        return 1;
    }

    default void onDischarged(LevelAccessor p_222026_, BlockState p_222027_, BlockPos p_222028_, RandomSource p_222029_) {
    }

    default boolean depositCharge(LevelAccessor p_222031_, BlockPos p_222032_, RandomSource p_222033_) {
        return false;
    }

    default boolean attemptSpreadVein(LevelAccessor p_222034_, BlockPos p_222035_, BlockState p_222036_, @Nullable Collection<Direction> p_222037_, boolean p_222038_) {
        return ((MultifaceSpreadeableBlock)Blocks.SCULK_VEIN).getSpreader().spreadAll(p_222036_, p_222034_, p_222035_, p_222038_) > 0L;
    }

    default boolean canChangeBlockStateOnSpread() {
        return true;
    }

    default int updateDecayDelay(int p_222045_) {
        return 1;
    }

    int attemptUseCharge(
        SculkSpreader.ChargeCursor p_222039_, LevelAccessor p_222040_, BlockPos p_222041_, RandomSource p_222042_, SculkSpreader p_222043_, boolean p_222044_
    );
}