import cn.nukkit.level.sound.NoteBoxSound; //导入依赖的package包/类
public int getInstrument() {
    Block below = this.down();
    switch (below.getId()) {
        case WOODEN_PLANK:
        case NOTEBLOCK:
        case CRAFTING_TABLE:
            return NoteBoxSound.INSTRUMENT_BASS;
        case SAND:
        case SANDSTONE:
        case SOUL_SAND:
            return NoteBoxSound.INSTRUMENT_TABOUR;
        case GLASS:
        case GLASS_PANEL:
        case GLOWSTONE_BLOCK:
            return NoteBoxSound.INSTRUMENT_CLICK;
        case COAL_ORE:
        case DIAMOND_ORE:
        case EMERALD_ORE:
        case GLOWING_REDSTONE_ORE:
        case GOLD_ORE:
        case IRON_ORE:
        case LAPIS_ORE:
        case REDSTONE_ORE:
            return NoteBoxSound.INSTRUMENT_BASS_DRUM;
        default:
            return NoteBoxSound.INSTRUMENT_PIANO;
    }
}
 

import cn.nukkit.level.sound.NoteBoxSound; //导入依赖的package包/类
public void emitSound() {
    BlockEventPacket pk = new BlockEventPacket();
    pk.x = (int) this.x;
    pk.y = (int) this.y;
    pk.z = (int) this.z;
    pk.case1 = this.getInstrument();
    pk.case2 = this.getStrength();
    this.getLevel().addChunkPacket((int) this.x >> 4, (int) this.z >> 4, pk);

    this.getLevel().addSound(new NoteBoxSound(this, this.getInstrument(), this.getStrength()));
}
 

import cn.nukkit.level.sound.NoteBoxSound; //导入依赖的package包/类
@Override
public void sendTo(Player player, Vector3 vec){
	Block block = player.level.getBlock(vec);
	if(block.getId() == Block.NOTEBLOCK){
		player.level.addSound(new NoteBoxSound(block, this.instrument, this.pitch), player);
	}else{
		player.level.sendBlocks(new Player[]{player}, new Vector3[]{Block.get(Block.NOTEBLOCK, 0, block)});
		player.level.addSound(new NoteBoxSound(block, this.instrument, this.pitch), player);
		player.level.sendBlocks(new Player[]{player}, new Vector3[]{block});
	}
}
 

import cn.nukkit.level.sound.NoteBoxSound; //导入依赖的package包/类
public int getInstrument() {
    Block below = this.getSide(Vector3.SIDE_DOWN);
    switch (below.getId()) {
        case WOODEN_PLANK:
        case NOTEBLOCK:
        case CRAFTING_TABLE:
            return NoteBoxSound.INSTRUMENT_BASS;
        case SAND:
        case SANDSTONE:
        case SOUL_SAND:
            return NoteBoxSound.INSTRUMENT_TABOUR;
        case GLASS:
        case GLASS_PANEL:
        case GLOWSTONE_BLOCK:
            return NoteBoxSound.INSTRUMENT_CLICK;
        case COAL_ORE:
        case DIAMOND_ORE:
        case EMERALD_ORE:
        case GLOWING_REDSTONE_ORE:
        case GOLD_ORE:
        case IRON_ORE:
        case LAPIS_ORE:
        case REDSTONE_ORE:
            return NoteBoxSound.INSTRUMENT_BASS_DRUM;
        default:
            return NoteBoxSound.INSTRUMENT_PIANO;
    }
}
 

import cn.nukkit.level.sound.NoteBoxSound; //导入依赖的package包/类
public boolean onActivate(Item item, Player player) {
    Block up = this.getSide(Vector3.SIDE_UP);
    if (up.getId() == Block.AIR) {
        this.getLevel().addSound(new NoteBoxSound(this, this.getInstrument(), this.getStrength()));
        return true;
    } else {
        return false;
    }
}