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

package net.minecraft.world.level.block;

import com.mojang.serialization.Codec;
import com.mojang.serialization.MapCodec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Holder;
import net.minecraft.core.particles.TrailParticleOption;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.sounds.SoundSource;
import net.minecraft.util.RandomSource;
import net.minecraft.world.Difficulty;
import net.minecraft.world.effect.MobEffect;
import net.minecraft.world.effect.MobEffectInstance;
import net.minecraft.world.effect.MobEffects;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.animal.Bee;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.gameevent.GameEvent;
import net.minecraft.world.level.gameevent.GameEvent.Context;
import net.minecraft.world.phys.Vec3;

public class EyeblossomBlock extends FlowerBlock {
	public static final MapCodec<EyeblossomBlock> CODEC = RecordCodecBuilder.mapCodec(
		instance -> instance.group(Codec.BOOL.fieldOf("open").forGetter(eyeblossomBlock -> eyeblossomBlock.type.open), propertiesCodec())
			.apply(instance, EyeblossomBlock::new)
	);
	private static final int EYEBLOSSOM_XZ_RANGE = 3;
	private static final int EYEBLOSSOM_Y_RANGE = 2;
	private final EyeblossomBlock.Type type;

	@Override
	public MapCodec<? extends EyeblossomBlock> codec() {
		return CODEC;
	}

	public EyeblossomBlock(EyeblossomBlock.Type type, BlockBehaviour.Properties properties) {
		super(type.effect, type.effectDuration, properties);
		this.type = type;
	}

	public EyeblossomBlock(boolean open, BlockBehaviour.Properties properties) {
		super(EyeblossomBlock.Type.fromBoolean(open).effect, EyeblossomBlock.Type.fromBoolean(open).effectDuration, properties);
		this.type = EyeblossomBlock.Type.fromBoolean(open);
	}

	@Override
	public void animateTick(BlockState state, Level level, BlockPos pos, RandomSource random) {
		if (this.type.emitSounds() && random.nextInt(700) == 0) {
			BlockState blockState = level.getBlockState(pos.below());
			if (blockState.is(Blocks.PALE_MOSS_BLOCK)) {
				level.playLocalSound(pos.getX(), pos.getY(), pos.getZ(), SoundEvents.EYEBLOSSOM_IDLE, SoundSource.BLOCKS, 1.0F, 1.0F, false);
			}
		}
	}

	@Override
	protected void randomTick(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
		if (this.tryChangingState(state, level, pos, random)) {
			level.playSound(null, pos, this.type.transform().longSwitchSound, SoundSource.BLOCKS, 1.0F, 1.0F);
		}

		super.randomTick(state, level, pos, random);
	}

	@Override
	protected void tick(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
		if (this.tryChangingState(state, level, pos, random)) {
			level.playSound(null, pos, this.type.transform().shortSwitchSound, SoundSource.BLOCKS, 1.0F, 1.0F);
		}

		super.tick(state, level, pos, random);
	}

	private boolean tryChangingState(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
		if (!level.dimensionType().natural()) {
			return false;
		} else if (level.isDay() != this.type.open) {
			return false;
		} else {
			EyeblossomBlock.Type type = this.type.transform();
			level.setBlock(pos, type.state(), 3);
			level.gameEvent(GameEvent.BLOCK_CHANGE, pos, Context.of(state));
			type.spawnTransformParticle(level, pos, random);
			BlockPos.betweenClosed(pos.offset(-3, -2, -3), pos.offset(3, 2, 3)).forEach(blockPos2 -> {
				BlockState blockState2 = level.getBlockState(blockPos2);
				if (blockState2 == state) {
					double d = Math.sqrt(pos.distSqr(blockPos2));
					int i = random.nextIntBetweenInclusive((int)(d * 5.0), (int)(d * 10.0));
					level.scheduleTick(blockPos2, state.getBlock(), i);
				}
			});
			return true;
		}
	}

	@Override
	protected void entityInside(BlockState state, Level level, BlockPos pos, Entity entity) {
		if (!level.isClientSide()
			&& level.getDifficulty() != Difficulty.PEACEFUL
			&& entity instanceof Bee bee
			&& Bee.attractsBees(state)
			&& !bee.hasEffect(MobEffects.POISON)) {
			bee.addEffect(this.getBeeInteractionEffect());
		}
	}

	@Override
	public MobEffectInstance getBeeInteractionEffect() {
		return new MobEffectInstance(MobEffects.POISON, 25);
	}

	public static enum Type {
		OPEN(true, MobEffects.BLINDNESS, 11.0F, SoundEvents.EYEBLOSSOM_OPEN_LONG, SoundEvents.EYEBLOSSOM_OPEN, 16545810),
		CLOSED(false, MobEffects.CONFUSION, 7.0F, SoundEvents.EYEBLOSSOM_CLOSE_LONG, SoundEvents.EYEBLOSSOM_CLOSE, 6250335);

		final boolean open;
		final Holder<MobEffect> effect;
		final float effectDuration;
		final SoundEvent longSwitchSound;
		final SoundEvent shortSwitchSound;
		private final int particleColor;

		private Type(
			final boolean open,
			final Holder<MobEffect> effect,
			final float effectDuration,
			final SoundEvent longSwitchSound,
			final SoundEvent shortSwitchSound,
			final int particleColor
		) {
			this.open = open;
			this.effect = effect;
			this.effectDuration = effectDuration;
			this.longSwitchSound = longSwitchSound;
			this.shortSwitchSound = shortSwitchSound;
			this.particleColor = particleColor;
		}

		public Block block() {
			return this.open ? Blocks.OPEN_EYEBLOSSOM : Blocks.CLOSED_EYEBLOSSOM;
		}

		public BlockState state() {
			return this.block().defaultBlockState();
		}

		public EyeblossomBlock.Type transform() {
			return fromBoolean(!this.open);
		}

		public boolean emitSounds() {
			return this.open;
		}

		public static EyeblossomBlock.Type fromBoolean(boolean open) {
			return open ? OPEN : CLOSED;
		}

		public void spawnTransformParticle(ServerLevel level, BlockPos pos, RandomSource random) {
			Vec3 vec3 = pos.getCenter();
			double d = 0.5 + random.nextDouble();
			Vec3 vec32 = new Vec3(random.nextDouble() - 0.5, random.nextDouble() + 1.0, random.nextDouble() - 0.5);
			Vec3 vec33 = vec3.add(vec32.scale(d));
			TrailParticleOption trailParticleOption = new TrailParticleOption(vec33, this.particleColor, (int)(20.0 * d));
			level.sendParticles(trailParticleOption, vec3.x, vec3.y, vec3.z, 1, 0.0, 0.0, 0.0, 0.0);
		}

		public SoundEvent longSwitchSound() {
			return this.longSwitchSound;
		}
	}
}