minecraft-src/net/minecraft/world/level/block/SculkShriekerBlock.java

package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
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;
import org.jetbrains.annotations.Nullable;

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 properties) {
		super(properties);
		this.registerDefaultState(this.stateDefinition.any().setValue(SHRIEKING, false).setValue(WATERLOGGED, false).setValue(CAN_SUMMON, false));
	}

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

	@Override
	public void stepOn(Level level, BlockPos pos, BlockState state, Entity entity) {
		if (level instanceof ServerLevel serverLevel) {
			ServerPlayer serverPlayer = SculkShriekerBlockEntity.tryGetPlayer(entity);
			if (serverPlayer != null) {
				serverLevel.getBlockEntity(pos, BlockEntityType.SCULK_SHRIEKER)
					.ifPresent(sculkShriekerBlockEntity -> sculkShriekerBlockEntity.tryShriek(serverLevel, serverPlayer));
			}
		}

		super.stepOn(level, pos, state, entity);
	}

	@Override
	protected void tick(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
		if ((Boolean)state.getValue(SHRIEKING)) {
			level.setBlock(pos, state.setValue(SHRIEKING, false), 3);
			level.getBlockEntity(pos, BlockEntityType.SCULK_SHRIEKER).ifPresent(sculkShriekerBlockEntity -> sculkShriekerBlockEntity.tryRespond(level));
		}
	}

	@Override
	protected VoxelShape getCollisionShape(BlockState state, BlockGetter level, BlockPos pos, CollisionContext context) {
		return SHAPE_COLLISION;
	}

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

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

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

	@Override
	protected BlockState updateShape(
		BlockState state,
		LevelReader level,
		ScheduledTickAccess scheduledTickAccess,
		BlockPos pos,
		Direction direction,
		BlockPos neighborPos,
		BlockState neighborState,
		RandomSource random
	) {
		if ((Boolean)state.getValue(WATERLOGGED)) {
			scheduledTickAccess.scheduleTick(pos, Fluids.WATER, Fluids.WATER.getTickDelay(level));
		}

		return super.updateShape(state, level, scheduledTickAccess, pos, direction, neighborPos, neighborState, random);
	}

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

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

	@Override
	protected void spawnAfterBreak(BlockState state, ServerLevel level, BlockPos pos, ItemStack stack, boolean dropExperience) {
		super.spawnAfterBreak(state, level, pos, stack, dropExperience);
		if (dropExperience) {
			this.tryDropExperience(level, pos, stack, ConstantInt.of(5));
		}
	}

	@Nullable
	@Override
	public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level level, BlockState state, BlockEntityType<T> blockEntityType) {
		return !level.isClientSide
			? BaseEntityBlock.createTickerHelper(
				blockEntityType,
				BlockEntityType.SCULK_SHRIEKER,
				(levelx, blockPos, blockState, sculkShriekerBlockEntity) -> VibrationSystem.Ticker.tick(
					levelx, sculkShriekerBlockEntity.getVibrationData(), sculkShriekerBlockEntity.getVibrationUser()
				)
			)
			: null;
	}
}