minecraft-src/net/minecraft/world/level/block/NoteBlock.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.core.Holder;
import net.minecraft.core.particles.ParticleTypes;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundSource;
import net.minecraft.stats.Stats;
import net.minecraft.tags.ItemTags;
import net.minecraft.util.RandomSource;
import net.minecraft.world.InteractionHand;
import net.minecraft.world.InteractionResult;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.context.BlockPlaceContext;
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.SkullBlockEntity;
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.EnumProperty;
import net.minecraft.world.level.block.state.properties.IntegerProperty;
import net.minecraft.world.level.block.state.properties.NoteBlockInstrument;
import net.minecraft.world.level.gameevent.GameEvent;
import net.minecraft.world.level.redstone.Orientation;
import net.minecraft.world.phys.BlockHitResult;
import org.jetbrains.annotations.Nullable;

public class NoteBlock extends Block {
	public static final MapCodec<NoteBlock> CODEC = simpleCodec(NoteBlock::new);
	public static final EnumProperty<NoteBlockInstrument> INSTRUMENT = BlockStateProperties.NOTEBLOCK_INSTRUMENT;
	public static final BooleanProperty POWERED = BlockStateProperties.POWERED;
	public static final IntegerProperty NOTE = BlockStateProperties.NOTE;
	public static final int NOTE_VOLUME = 3;

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

	public NoteBlock(BlockBehaviour.Properties properties) {
		super(properties);
		this.registerDefaultState(this.stateDefinition.any().setValue(INSTRUMENT, NoteBlockInstrument.HARP).setValue(NOTE, 0).setValue(POWERED, false));
	}

	private BlockState setInstrument(LevelReader level, BlockPos pos, BlockState state) {
		NoteBlockInstrument noteBlockInstrument = level.getBlockState(pos.above()).instrument();
		if (noteBlockInstrument.worksAboveNoteBlock()) {
			return state.setValue(INSTRUMENT, noteBlockInstrument);
		} else {
			NoteBlockInstrument noteBlockInstrument2 = level.getBlockState(pos.below()).instrument();
			NoteBlockInstrument noteBlockInstrument3 = noteBlockInstrument2.worksAboveNoteBlock() ? NoteBlockInstrument.HARP : noteBlockInstrument2;
			return state.setValue(INSTRUMENT, noteBlockInstrument3);
		}
	}

	@Override
	public BlockState getStateForPlacement(BlockPlaceContext context) {
		return this.setInstrument(context.getLevel(), context.getClickedPos(), this.defaultBlockState());
	}

	@Override
	protected BlockState updateShape(
		BlockState state,
		LevelReader level,
		ScheduledTickAccess scheduledTickAccess,
		BlockPos pos,
		Direction direction,
		BlockPos neighborPos,
		BlockState neighborState,
		RandomSource random
	) {
		boolean bl = direction.getAxis() == Direction.Axis.Y;
		return bl ? this.setInstrument(level, pos, state) : super.updateShape(state, level, scheduledTickAccess, pos, direction, neighborPos, neighborState, random);
	}

	@Override
	protected void neighborChanged(BlockState state, Level level, BlockPos pos, Block neighborBlock, @Nullable Orientation orientation, boolean movedByPiston) {
		boolean bl = level.hasNeighborSignal(pos);
		if (bl != (Boolean)state.getValue(POWERED)) {
			if (bl) {
				this.playNote(null, state, level, pos);
			}

			level.setBlock(pos, state.setValue(POWERED, bl), 3);
		}
	}

	private void playNote(@Nullable Entity entity, BlockState state, Level level, BlockPos pos) {
		if (((NoteBlockInstrument)state.getValue(INSTRUMENT)).worksAboveNoteBlock() || level.getBlockState(pos.above()).isAir()) {
			level.blockEvent(pos, this, 0, 0);
			level.gameEvent(entity, GameEvent.NOTE_BLOCK_PLAY, pos);
		}
	}

	@Override
	protected InteractionResult useItemOn(
		ItemStack stack, BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hitResult
	) {
		return (InteractionResult)(stack.is(ItemTags.NOTE_BLOCK_TOP_INSTRUMENTS) && hitResult.getDirection() == Direction.UP
			? InteractionResult.PASS
			: super.useItemOn(stack, state, level, pos, player, hand, hitResult));
	}

	@Override
	protected InteractionResult useWithoutItem(BlockState state, Level level, BlockPos pos, Player player, BlockHitResult hitResult) {
		if (!level.isClientSide) {
			state = state.cycle(NOTE);
			level.setBlock(pos, state, 3);
			this.playNote(player, state, level, pos);
			player.awardStat(Stats.TUNE_NOTEBLOCK);
		}

		return InteractionResult.SUCCESS;
	}

	@Override
	protected void attack(BlockState state, Level level, BlockPos pos, Player player) {
		if (!level.isClientSide) {
			this.playNote(player, state, level, pos);
			player.awardStat(Stats.PLAY_NOTEBLOCK);
		}
	}

	public static float getPitchFromNote(int note) {
		return (float)Math.pow(2.0, (note - 12) / 12.0);
	}

	@Override
	protected boolean triggerEvent(BlockState state, Level level, BlockPos pos, int id, int param) {
		NoteBlockInstrument noteBlockInstrument = state.getValue(INSTRUMENT);
		float f;
		if (noteBlockInstrument.isTunable()) {
			int i = (Integer)state.getValue(NOTE);
			f = getPitchFromNote(i);
			level.addParticle(ParticleTypes.NOTE, pos.getX() + 0.5, pos.getY() + 1.2, pos.getZ() + 0.5, i / 24.0, 0.0, 0.0);
		} else {
			f = 1.0F;
		}

		Holder<SoundEvent> holder;
		if (noteBlockInstrument.hasCustomSound()) {
			ResourceLocation resourceLocation = this.getCustomSoundId(level, pos);
			if (resourceLocation == null) {
				return false;
			}

			holder = Holder.direct(SoundEvent.createVariableRangeEvent(resourceLocation));
		} else {
			holder = noteBlockInstrument.getSoundEvent();
		}

		level.playSeededSound(null, pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5, holder, SoundSource.RECORDS, 3.0F, f, level.random.nextLong());
		return true;
	}

	@Nullable
	private ResourceLocation getCustomSoundId(Level level, BlockPos pos) {
		return level.getBlockEntity(pos.above()) instanceof SkullBlockEntity skullBlockEntity ? skullBlockEntity.getNoteBlockSound() : null;
	}

	@Override
	protected void createBlockStateDefinition(Builder<Block, BlockState> builder) {
		builder.add(INSTRUMENT, POWERED, NOTE);
	}
}