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Bug
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Resolution: Invalid
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Minor
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None
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None
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Windows 10 64bit
jdk-16.0.1
IDE configured to use Java 16
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This server is running Paper version git-Paper-384 (MC: 1.17.1) (Implementing API version 1.17.1-R0.1-SNAPSHOT) (Git: 51b7b60)
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N/A
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Yes
Note that I do use a paper server for testing but the same bug occurs on a spigot server.
This does require an IDE for java development, a server you can test on, and a new java project with spigot and craftbukkit as dependencies to use nms.
Main class
public class Main extends JavaPlugin @Override public void onEnable() { //Registers commands getCommand("npc-create").setExecuter(new NPCCreateCommand()); getCommand("npc-remove").setExecuter(new NPCRemoveCommand()); }
NPCCreateCommand class
public class NPCCreateCommand implements CommandExecuter { @Override public boolean onCommand(CommandSender sender, Command command, String label, String[] args) { if(sender instanceof Player p) { CraftPlayer a = (CraftPlayer) p; EntityPlayer b = a.getHandle(); MinecraftServer server = b.getMinecraftServer(); WorldServer world = b.getWorldServer(); GameProfile profile = new GameProfile(UUID.nameUUIDFromBytes(("NPC: test").getBytes(Charsets.UTF_8)), "test"); EntityPlayer npc = new EntityPlayer(server, world, profile); NPCCommand.handlePlayerInfo(b, npc); PlayerConnection connection = player.b; connection.sendPacket(new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.a, npc)); npc.setPosition(player.getBukkitEntity().getLocation().getX(), player.getBukkitEntity().getLocation().getY(), player.getBukkitEntity().getLocation().getZ()); DataWatcher data = npc.getDataWatcher(); data.set(new DataWatcherObject<>(17, DataWatcherRegistry.a), (byte) 0xFF); connection.sendPacket(new PacketPlayOutNamedEntitySpawn(npc)); connection.sendPacket(new PacketPlayOutEntityMetadata(npc.getId(), data, true)); } }
NPCRemoveCommand class
public class NPCRemoveCommand implements CommandExecuter { @Override public void run(CommandSender sender, Command command, String label, String[] args) { CraftPlayer a = (CraftPlayer) p; EntityPlayer b = a.getHandle(); MinecraftServer server = b.getMinecraftServer(); WorldServer world = b.getWorldServer(); EntityPlayer npc = new EntityPlayer(server, world, new GameProfile(UUID.nameUUIDFromBytes(("NPC: test").getBytes(Charsets.UTF_8)), "test")); Player p = player.getBukkitEntity(); //Debug message p.sendMessage("Deleted npc " + npc.getName().toString()); connection.sendPacket(new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.e, npc)); connection.sendPacket(new PacketPlayOutEntityDestroy(npc.getId())); } }
plugin.yml
name: test version: 1 author: whoever main: (whatever_package_main.class_is_in).Main api-version: 1.17 description: test commands: npc-create: description: creates test npc usage: /npc-create npc-remove: description: removes test npc usage: /npc-destroy
Once this is done compile the jar and put it your server's plugin folder reload/start the server then run /npc-create. It will create an npc with a steve or alex skin and put a name into tab. Then run /npc-remove and it should remove the npc from tab and not remove the npc itself.
If you have any problems with the code please contact me.
