minecraft-src/net/minecraft/world/level/block/SeaPickleBlock.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.tags.BlockTags;
import net.minecraft.util.RandomSource;
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.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.StateDefinition.Builder;
import net.minecraft.world.level.block.state.properties.BlockStateProperties;
import net.minecraft.world.level.block.state.properties.BooleanProperty;
import net.minecraft.world.level.block.state.properties.IntegerProperty;
import net.minecraft.world.level.material.FluidState;
import net.minecraft.world.level.material.Fluids;
import net.minecraft.world.level.pathfinder.PathComputationType;
import net.minecraft.world.phys.shapes.CollisionContext;
import net.minecraft.world.phys.shapes.VoxelShape;
import org.jetbrains.annotations.Nullable;

public class SeaPickleBlock extends VegetationBlock implements BonemealableBlock, SimpleWaterloggedBlock {
	public static final MapCodec<SeaPickleBlock> CODEC = simpleCodec(SeaPickleBlock::new);
	public static final int MAX_PICKLES = 4;
	public static final IntegerProperty PICKLES = BlockStateProperties.PICKLES;
	public static final BooleanProperty WATERLOGGED = BlockStateProperties.WATERLOGGED;
	private static final VoxelShape SHAPE_ONE = Block.column(4.0, 0.0, 6.0);
	private static final VoxelShape SHAPE_TWO = Block.column(10.0, 0.0, 6.0);
	private static final VoxelShape SHAPE_THREE = Block.column(12.0, 0.0, 6.0);
	private static final VoxelShape SHAPE_FOUR = Block.column(12.0, 0.0, 7.0);

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

	protected SeaPickleBlock(BlockBehaviour.Properties properties) {
		super(properties);
		this.registerDefaultState(this.stateDefinition.any().setValue(PICKLES, 1).setValue(WATERLOGGED, true));
	}

	@Nullable
	@Override
	public BlockState getStateForPlacement(BlockPlaceContext context) {
		BlockState blockState = context.getLevel().getBlockState(context.getClickedPos());
		if (blockState.is(this)) {
			return blockState.setValue(PICKLES, Math.min(4, (Integer)blockState.getValue(PICKLES) + 1));
		} else {
			FluidState fluidState = context.getLevel().getFluidState(context.getClickedPos());
			boolean bl = fluidState.getType() == Fluids.WATER;
			return super.getStateForPlacement(context).setValue(WATERLOGGED, bl);
		}
	}

	public static boolean isDead(BlockState state) {
		return !(Boolean)state.getValue(WATERLOGGED);
	}

	@Override
	protected boolean mayPlaceOn(BlockState state, BlockGetter level, BlockPos pos) {
		return !state.getCollisionShape(level, pos).getFaceShape(Direction.UP).isEmpty() || state.isFaceSturdy(level, pos, Direction.UP);
	}

	@Override
	protected boolean canSurvive(BlockState state, LevelReader level, BlockPos pos) {
		BlockPos blockPos = pos.below();
		return this.mayPlaceOn(level.getBlockState(blockPos), level, blockPos);
	}

	@Override
	protected BlockState updateShape(
		BlockState state,
		LevelReader level,
		ScheduledTickAccess scheduledTickAccess,
		BlockPos pos,
		Direction direction,
		BlockPos neighborPos,
		BlockState neighborState,
		RandomSource random
	) {
		if (!state.canSurvive(level, pos)) {
			return Blocks.AIR.defaultBlockState();
		} else {
			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);
		}
	}

	@Override
	protected boolean canBeReplaced(BlockState state, BlockPlaceContext useContext) {
		return !useContext.isSecondaryUseActive() && useContext.getItemInHand().is(this.asItem()) && state.getValue(PICKLES) < 4
			? true
			: super.canBeReplaced(state, useContext);
	}

	@Override
	protected VoxelShape getShape(BlockState state, BlockGetter level, BlockPos pos, CollisionContext context) {
		return switch (state.getValue(PICKLES)) {
			case 2 -> SHAPE_TWO;
			case 3 -> SHAPE_THREE;
			case 4 -> SHAPE_FOUR;
			default -> SHAPE_ONE;
		};
	}

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

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

	@Override
	public boolean isValidBonemealTarget(LevelReader level, BlockPos pos, BlockState state) {
		return !isDead(state) && level.getBlockState(pos.below()).is(BlockTags.CORAL_BLOCKS);
	}

	@Override
	public boolean isBonemealSuccess(Level level, RandomSource random, BlockPos pos, BlockState state) {
		return true;
	}

	@Override
	public void performBonemeal(ServerLevel level, RandomSource random, BlockPos pos, BlockState state) {
		int i = 5;
		int j = 1;
		int k = 2;
		int l = 0;
		int m = pos.getX() - 2;
		int n = 0;

		for (int o = 0; o < 5; o++) {
			for (int p = 0; p < j; p++) {
				int q = 2 + pos.getY() - 1;

				for (int r = q - 2; r < q; r++) {
					BlockPos blockPos = new BlockPos(m + o, r, pos.getZ() - n + p);
					if (blockPos != pos && random.nextInt(6) == 0 && level.getBlockState(blockPos).is(Blocks.WATER)) {
						BlockState blockState = level.getBlockState(blockPos.below());
						if (blockState.is(BlockTags.CORAL_BLOCKS)) {
							level.setBlock(blockPos, Blocks.SEA_PICKLE.defaultBlockState().setValue(PICKLES, random.nextInt(4) + 1), 3);
						}
					}
				}
			}

			if (l < 2) {
				j += 2;
				n++;
			} else {
				j -= 2;
				n--;
			}

			l++;
		}

		level.setBlock(pos, state.setValue(PICKLES, 4), 2);
	}

	@Override
	protected boolean isPathfindable(BlockState state, PathComputationType pathComputationType) {
		return false;
	}
}