src/de/steamwar/lobby/LobbySystem.java

@@ -24,6 +24,7 @@ import de.steamwar.lobby.command.FlyCommand;
 import de.steamwar.lobby.command.HologramCommand;
 import de.steamwar.lobby.command.PortalCommand;
 import de.steamwar.lobby.listener.*;
+import de.steamwar.lobby.team.TeamPlayer;
 import de.steamwar.message.Message;
 import org.bukkit.plugin.java.JavaPlugin;
 
@@ -56,6 +57,7 @@ public class LobbySystem extends JavaPlugin {
         new ParticleListener();
         new InventoryInteraction();
         new WorldInteraction();
+        new TeamPlayer();
 
         new AlphaWall(l -> l.getX() > 1199, AlphaWall.REFLECT_X);
         new AlphaWall(l -> l.getX() < 2977, AlphaWall.REFLECT_X);
@@ -64,6 +66,10 @@ public class LobbySystem extends JavaPlugin {
 
     }
 
+    @Override
+    public void onDisable() {
+        TeamPlayer.cleanup();
+    }
 
     public static LobbySystem getPlugin() {
         return plugin;

src/de/steamwar/lobby/display/Displayable.java

@@ -38,24 +38,34 @@ public class Displayable extends BasicListener {
 
     private final Set<Player> visible = new HashSet<>();
 
-    private final int chunkX;
-    private final int chunkZ;
+    private int chunkX;
+    private int chunkZ;
     private final Consumer<Player> show;
     private final Consumer<Player> hide;
+    private final Consumer<Player> move;
     private final Function<Player, Boolean> playerFilter;
 
-    public Displayable(Location location, Consumer<Player> show, Consumer<Player> hide) {
-        this(location, show, hide, player -> true);
+    public Displayable(Location location, Consumer<Player> show, Consumer<Player> hide, Consumer<Player> move) {
+        this(location, show, hide, move, player -> true);
     }
 
     public Displayable(Location location, Consumer<Player> show, Consumer<Player> hide, Function<Player, Boolean> playerFilter) {
-        this.chunkX = posToChunk(location.getX());
-        this.chunkZ = posToChunk(location.getZ());
+        this(location, show, hide, player -> {}, playerFilter);
+    }
+
+    public Displayable(Location location, Consumer<Player> show, Consumer<Player> hide, Consumer<Player> move, Function<Player, Boolean> playerFilter) {
         this.show = show;
         this.hide = hide;
+        this.move = move;
         this.playerFilter = playerFilter;
+        setLocation(location);
+    }
 
+    public void setLocation(Location location) {
+        chunkX = posToChunk(location.getX());
+        chunkZ = posToChunk(location.getZ());
         Bukkit.getOnlinePlayers().forEach(this::checkLocation);
+        visible.forEach(move);
     }
 
     public Set<Player> getVisitors() {

src/de/steamwar/lobby/display/NPC.java

@@ -62,6 +62,15 @@ public class NPC {
     private static final Reflection.ConstructorInvoker headRotationConstructor = Reflection.getConstructor(headRotationPacket);
     private static final Reflection.FieldAccessor<Integer> headRotationEntity = Reflection.getField(headRotationPacket, int.class, 0);
     private static final Reflection.FieldAccessor<Byte> headRotationYaw = Reflection.getField(headRotationPacket, byte.class, 0);
+    private static final Class<?> movePacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutEntityTeleport");
+    private static final Reflection.ConstructorInvoker movePacketConstructor = Reflection.getConstructor(movePacket);
+    private static final Reflection.FieldAccessor<Integer> movePacketEntity = Reflection.getField(movePacket, int.class, 0);
+    private static final Reflection.FieldAccessor<Double> movePacketX = Reflection.getField(movePacket, double.class, 0);
+    private static final Reflection.FieldAccessor<Double> movePacketY = Reflection.getField(movePacket, double.class, 1);
+    private static final Reflection.FieldAccessor<Double> movePacketZ = Reflection.getField(movePacket, double.class, 2);
+    private static final Reflection.FieldAccessor<Byte> movePacketYaw = Reflection.getField(movePacket, byte.class, 0);
+    private static final Reflection.FieldAccessor<Byte> movePacketPitch = Reflection.getField(movePacket, byte.class, 1);
+    private static final Reflection.FieldAccessor<Boolean> movePacketOnGround = Reflection.getField(movePacket, boolean.class, 0);
 
     private final Displayable display;
 
@@ -75,6 +84,7 @@ public class NPC {
     private final Object headRotation;
     private final Object removePlayerInfo;
     private final Object destroy;
+    private Object move;
 
     public NPC(Location location, UUID uuid, String name) {
         this.entityId = Hologram.createEntityId();
@@ -101,7 +111,21 @@ public class NPC {
         headRotationEntity.set(headRotation, entityId);
         headRotationYaw.set(headRotation, yaw);
 
-        display = new Displayable(location, this::show, this::hide);
+        display = new Displayable(location, this::show, this::hide, this::move);
+    }
+
+    public void setLocation(Location location) {
+        byte yaw = (byte)(int)(location.getYaw() * 256.0 / 360.0);
+        headRotationYaw.set(headRotation, yaw);
+        move = movePacketConstructor.invoke();
+        movePacketEntity.set(move, entityId);
+        movePacketX.set(move, location.getX());
+        movePacketY.set(move, location.getY());
+        movePacketZ.set(move, location.getZ());
+        movePacketYaw.set(move, yaw);
+        movePacketPitch.set(move, (byte)(int)(location.getPitch() * 256.0 / 360.0));
+        movePacketOnGround.set(move, true);
+        display.setLocation(location);
     }
 
     public Location getLocation() {
@@ -123,6 +147,11 @@ public class NPC {
         TinyProtocol.instance.sendPacket(player, destroy);
     }
 
+    private void move(Player player) {
+        TinyProtocol.instance.sendPacket(player, headRotation);
+        TinyProtocol.instance.sendPacket(player, move);
+    }
+
     public void delete() {
         display.delete();
     }

src/de/steamwar/lobby/team/TeamPlayer.java

@@ -0,0 +1,117 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.lobby.team;
+
+import de.steamwar.lobby.LobbySystem;
+import de.steamwar.lobby.display.NPC;
+import de.steamwar.lobby.listener.BasicListener;
+import de.steamwar.sql.SteamwarUser;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Villager;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.entity.EntityInteractEvent;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class TeamPlayer extends BasicListener {
+
+    private static Map<Entity, NPC> entities = new HashMap<>();
+
+    public static void spawnTeamPlayer(World world, String name) {
+        Location location = new Location(world, 1524.5, 52, 1493.5);
+        NPC npc = new NPC(location, SteamwarUser.get(name).getUUID(), name);
+        Villager villager = (Villager) world.spawnEntity(location, EntityType.VILLAGER);
+        villager.setSilent(true);
+        villager.setInvulnerable(true);
+        villager.addPotionEffect(new PotionEffect(PotionEffectType.INVISIBILITY, Integer.MAX_VALUE, 1, false, false, false));
+        villager.setCustomName(name);
+        villager.setProfession(Villager.Profession.NITWIT);
+        entities.put(villager, npc);
+    }
+
+    public static void cleanup() {
+        entities.forEach((entity, npc) -> entity.remove());
+    }
+
+    {
+        World world = Bukkit.getWorld("Lobby");
+        for (int x = -10; x < 10; x++) {
+            for (int z = -10; z < 10; z++) {
+                world.setChunkForceLoaded(95 + x , 93 + z, true);
+            }
+        }
+        world.getEntitiesByClasses(Villager.class).forEach(Entity::remove);
+        for (int x = -10; x < 10; x++) {
+            for (int z = -10; z < 10; z++) {
+                world.setChunkForceLoaded(95 + x , 93 + z, true);
+            }
+        }
+        spawnTeamPlayer(world, "AdmiralSeekrank");
+        spawnTeamPlayer(world, "SalzgehaltSensei");
+        spawnTeamPlayer(world, "Sehfxhler");
+        spawnTeamPlayer(world, "Tim7077");
+        spawnTeamPlayer(world, "LordMainex");
+        spawnTeamPlayer(world, "Lixi266");
+        spawnTeamPlayer(world, "PxlPain");
+        spawnTeamPlayer(world, "KopFilme");
+        spawnTeamPlayer(world, "Lixfel");
+        spawnTeamPlayer(world, "Chaoscaot");
+        spawnTeamPlayer(world, "YoyoNow");
+        spawnTeamPlayer(world, "Zeanon");
+        spawnTeamPlayer(world, "zOnlyKroks");
+        spawnTeamPlayer(world, "Legula");
+        spawnTeamPlayer(world, "xJoul");
+        spawnTeamPlayer(world, "Maybe_Creative");
+        spawnTeamPlayer(world, "Tim16227");
+        spawnTeamPlayer(world, "FoehnX");
+        spawnTeamPlayer(world, "_Noerf_");
+        spawnTeamPlayer(world, "Edmund_Strong");
+        spawnTeamPlayer(world, "TheBreadBeard");
+        spawnTeamPlayer(world, "Basic_Redstone");
+
+        Bukkit.getScheduler().runTaskTimer(LobbySystem.getPlugin(), () -> {
+            entities.forEach((entity, npc) -> {
+                npc.setLocation(entity.getLocation());
+            });
+        }, 1L, 1L);
+    }
+
+    @EventHandler
+    public void onEntityInteract(EntityInteractEvent event) {
+        if (event.getEntityType() == EntityType.VILLAGER) {
+            event.setCancelled(true);
+        }
+    }
+
+    @EventHandler
+    public void onEntityDamage(EntityDamageEvent event) {
+        if (event.getEntityType() == EntityType.VILLAGER) {
+            event.setCancelled(true);
+        }
+    }
+}