Java插件ProtocolLib Mute活塞的声音

Question

所以目前我有这样的代码：

@Override

public void onEnable(){

    ProtocolManager manager = ProtocolLibrary.getProtocolManager();
    manager.addPacketListener(
            new PacketAdapter(this, ListenerPriority.HIGHEST,
                    PacketType.Play.Server.NAMED_SOUND_EFFECT) {
                @Override
                public void onPacketSending(PacketEvent event) {
                    // Item packets (id: 0x29)
                    if (event.getPacketType() ==
                            PacketType.Play.Server.NAMED_SOUND_EFFECT) {
                        if (packet.getSoundEffetcs().getValues().contains(Sound.BLOCK_PISTON_CONTRACT || packet.getSoundEffetcs().getValues().contains(Sound.BLOCK_PISTON_EXTEND))){

                        }

                        event.setCancelled(true);
                    }
                }
            });
}

@Override
public void onDisable() {
    // Plugin shutdown logic
}

}

这是不完整的，一旦它完成，它应该取消所有的数据包，得到发送到服务器/客户端，活塞声音参与其中。代码if (packet.getSoundEffetcs().getValues().contains(Sound.BLOCK_PISTON_CONTRACT || packet.getSoundEffetcs().getValues().contains(Sound.BLOCK_PISTON_EXTEND)))给我带来了麻烦，因为if (packet.getSoundEffetcs().getValues().contains(Sound.BLOCK_PISTON_CONTRACT || packet.getSoundEffetcs().getValues().contains(Sound.BLOCK_PISTON_EXTEND)))告诉我，它“不能将符号”“数据包”解析为错误。哪些导入必须添加到我的插件中，以便正确识别“数据包”？

Answer 1

您从未定义过packet变量。

你必须这样做：

@Override
public void onPacketSending(PacketEvent event) {
    // Item packets (id: 0x29)
    if (event.getPacketType() == PacketType.Play.Server.NAMED_SOUND_EFFECT) {
        PacketContainer packet = event.getPacket(); // get ProtocolLib packet
        List<Sound> sounds = packet.getSoundEffetcs().getValues(); // get values from it
        if (sounds.contains(Sound.BLOCK_PISTON_CONTRACT || sounds.contains(Sound.BLOCK_PISTON_EXTEND))){
             // here what you want
        }
        event.setCancelled(true);
    }
}