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

package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.util.RandomSource;
import net.minecraft.util.valueproviders.ConstantInt;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.context.BlockPlaceContext;
import net.minecraft.world.level.BlockGetter;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.LevelReader;
import net.minecraft.world.level.ScheduledTickAccess;
import net.minecraft.world.level.block.entity.BlockEntity;
import net.minecraft.world.level.block.entity.BlockEntityTicker;
import net.minecraft.world.level.block.entity.BlockEntityType;
import net.minecraft.world.level.block.entity.SculkShriekerBlockEntity;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.StateDefinition;
import net.minecraft.world.level.block.state.properties.BlockStateProperties;
import net.minecraft.world.level.block.state.properties.BooleanProperty;
import net.minecraft.world.level.gameevent.vibrations.VibrationSystem;
import net.minecraft.world.level.material.FluidState;
import net.minecraft.world.level.material.Fluids;
import net.minecraft.world.phys.shapes.CollisionContext;
import net.minecraft.world.phys.shapes.VoxelShape;

public class SculkShriekerBlock extends BaseEntityBlock implements SimpleWaterloggedBlock {
    public static final MapCodec<SculkShriekerBlock> CODEC = simpleCodec(SculkShriekerBlock::new);
    public static final BooleanProperty SHRIEKING = BlockStateProperties.SHRIEKING;
    public static final BooleanProperty WATERLOGGED = BlockStateProperties.WATERLOGGED;
    public static final BooleanProperty CAN_SUMMON = BlockStateProperties.CAN_SUMMON;
    private static final VoxelShape SHAPE_COLLISION = Block.column(16.0, 0.0, 8.0);
    public static final double TOP_Y = SHAPE_COLLISION.max(Direction.Axis.Y);

    @Override
    public MapCodec<SculkShriekerBlock> codec() {
        return CODEC;
    }

    public SculkShriekerBlock(BlockBehaviour.Properties p_222159_) {
        super(p_222159_);
        this.registerDefaultState(this.stateDefinition.any().setValue(SHRIEKING, false).setValue(WATERLOGGED, false).setValue(CAN_SUMMON, false));
    }

    @Override
    protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> p_222211_) {
        p_222211_.add(SHRIEKING);
        p_222211_.add(WATERLOGGED);
        p_222211_.add(CAN_SUMMON);
    }

    @Override
    public void stepOn(Level p_222177_, BlockPos p_222178_, BlockState p_222179_, Entity p_222180_) {
        if (p_222177_ instanceof ServerLevel serverlevel) {
            ServerPlayer serverplayer = SculkShriekerBlockEntity.tryGetPlayer(p_222180_);
            if (serverplayer != null) {
                serverlevel.getBlockEntity(p_222178_, BlockEntityType.SCULK_SHRIEKER).ifPresent(p_222163_ -> p_222163_.tryShriek(serverlevel, serverplayer));
            }
        }

        super.stepOn(p_222177_, p_222178_, p_222179_, p_222180_);
    }

    @Override
    protected void tick(BlockState p_222187_, ServerLevel p_222188_, BlockPos p_222189_, RandomSource p_222190_) {
        if (p_222187_.getValue(SHRIEKING)) {
            p_222188_.setBlock(p_222189_, p_222187_.setValue(SHRIEKING, false), 3);
            p_222188_.getBlockEntity(p_222189_, BlockEntityType.SCULK_SHRIEKER).ifPresent(p_222217_ -> p_222217_.tryRespond(p_222188_));
        }
    }

    @Override
    protected VoxelShape getCollisionShape(BlockState p_222225_, BlockGetter p_222226_, BlockPos p_222227_, CollisionContext p_222228_) {
        return SHAPE_COLLISION;
    }

    @Override
    protected VoxelShape getOcclusionShape(BlockState p_222221_) {
        return SHAPE_COLLISION;
    }

    @Override
    protected boolean useShapeForLightOcclusion(BlockState p_222232_) {
        return true;
    }

    @Nullable
    @Override
    public BlockEntity newBlockEntity(BlockPos p_222213_, BlockState p_222214_) {
        return new SculkShriekerBlockEntity(p_222213_, p_222214_);
    }

    @Override
    protected BlockState updateShape(
        BlockState p_222204_,
        LevelReader p_360825_,
        ScheduledTickAccess p_367851_,
        BlockPos p_222208_,
        Direction p_222205_,
        BlockPos p_222209_,
        BlockState p_222206_,
        RandomSource p_367556_
    ) {
        if (p_222204_.getValue(WATERLOGGED)) {
            p_367851_.scheduleTick(p_222208_, Fluids.WATER, Fluids.WATER.getTickDelay(p_360825_));
        }

        return super.updateShape(p_222204_, p_360825_, p_367851_, p_222208_, p_222205_, p_222209_, p_222206_, p_367556_);
    }

    @Nullable
    @Override
    public BlockState getStateForPlacement(BlockPlaceContext p_222171_) {
        return this.defaultBlockState().setValue(WATERLOGGED, p_222171_.getLevel().getFluidState(p_222171_.getClickedPos()).getType() == Fluids.WATER);
    }

    @Override
    protected FluidState getFluidState(BlockState p_222230_) {
        return p_222230_.getValue(WATERLOGGED) ? Fluids.WATER.getSource(false) : super.getFluidState(p_222230_);
    }

    @Override
    protected void spawnAfterBreak(BlockState p_222192_, ServerLevel p_222193_, BlockPos p_222194_, ItemStack p_222195_, boolean p_222196_) {
        super.spawnAfterBreak(p_222192_, p_222193_, p_222194_, p_222195_, p_222196_);
        if (p_222196_) {
            this.tryDropExperience(p_222193_, p_222194_, p_222195_, ConstantInt.of(5));
        }
    }

    @Nullable
    @Override
    public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level p_222173_, BlockState p_222174_, BlockEntityType<T> p_222175_) {
        return !p_222173_.isClientSide
            ? BaseEntityBlock.createTickerHelper(
                p_222175_,
                BlockEntityType.SCULK_SHRIEKER,
                (p_281134_, p_281135_, p_281136_, p_281137_) -> VibrationSystem.Ticker.tick(p_281134_, p_281137_.getVibrationData(), p_281137_.getVibrationUser())
            )
            : null;
    }
}