Added admins with in-game icons and permissions; untested

core/src/io/anuke/mindustry/net/NetEvents.java

@@ -2,6 +2,7 @@ package io.anuke.mindustry.net;
 
 import io.anuke.mindustry.Vars;
 import io.anuke.mindustry.entities.BulletType;
+import io.anuke.mindustry.entities.Player;
 import io.anuke.mindustry.entities.TileEntity;
 import io.anuke.mindustry.entities.enemies.Enemy;
 import io.anuke.mindustry.net.Net.SendMode;
@@ -149,4 +150,19 @@ public class NetEvents {
         packet.itemid = (byte)item.id;
         Net.send(packet, SendMode.udp);
     }
+
+    public static void handleAdminSet(Player player, boolean admin){
+        PlayerAdminPacket packet = new PlayerAdminPacket();
+        packet.admin = admin;
+        packet.id = player.id;
+        player.isAdmin = admin;
+        Net.send(packet, SendMode.tcp);
+    }
+
+    public static void handleAdministerRequest(Player target, AdminAction action){
+        AdministerRequestPacket packet = new AdministerRequestPacket();
+        packet.id = target.id;
+        packet.action = action;
+        Net.send(packet, SendMode.tcp);
+    }
 }

core/src/io/anuke/mindustry/net/NetworkIO.java

@@ -4,6 +4,7 @@ import com.badlogic.gdx.graphics.Pixmap;
 import com.badlogic.gdx.graphics.Pixmap.Format;
 import com.badlogic.gdx.utils.ByteArray;
 import com.badlogic.gdx.utils.TimeUtils;
+import io.anuke.mindustry.entities.Player;
 import io.anuke.mindustry.game.GameMode;
 import io.anuke.mindustry.resource.Upgrade;
 import io.anuke.mindustry.resource.Weapon;
@@ -100,7 +101,7 @@ public class NetworkIO {
         }
     }
 
-    public static void writeWorld(int playerID, ByteArray upgrades, OutputStream os){
+    public static void writeWorld(Player player, ByteArray upgrades, OutputStream os){
 
         try(DataOutputStream stream = new DataOutputStream(os)){
 
@@ -116,7 +117,8 @@ public class NetworkIO {
             stream.writeInt(state.enemies); //enemy amount
 
             stream.writeBoolean(state.friendlyFire); //friendly fire state
-            stream.writeInt(playerID); //player remap ID
+            stream.writeInt(player.id); //player remap ID
+            stream.writeBoolean(player.isAdmin);
 
             //--INVENTORY--
 
@@ -246,6 +248,7 @@ public class NetworkIO {
             state.friendlyFire = friendlyfire;
 
             int pid = stream.readInt();
+            boolean admin = stream.readBoolean();
 
             //inventory
             for(int i = 0; i < state.inventory.getItems().length; i ++){
@@ -268,6 +271,7 @@ public class NetworkIO {
 
             Entities.clear();
             player.id = pid;
+            player.isAdmin = admin;
             player.add();
 
             //map

core/src/io/anuke/mindustry/net/Packets.java

@@ -576,4 +576,42 @@ public class Packets {
             message = new String(bytes);
         }
     }
+
+    public static class PlayerAdminPacket implements Packet{
+        public boolean admin;
+        public int id;
+
+        @Override
+        public void write(ByteBuffer buffer) {
+            buffer.put(admin ? (byte)1 : 0);
+            buffer.putInt(id);
+        }
+
+        @Override
+        public void read(ByteBuffer buffer) {
+            admin = buffer.get() == 1;
+            id = buffer.getInt();
+        }
+    }
+
+    public static class AdministerRequestPacket implements Packet{
+        public AdminAction action;
+        public int id;
+
+        @Override
+        public void write(ByteBuffer buffer) {
+            buffer.put((byte)action.ordinal());
+            buffer.putInt(id);
+        }
+
+        @Override
+        public void read(ByteBuffer buffer) {
+            action = AdminAction.values()[buffer.get()];
+            id = buffer.getInt();
+        }
+    }
+
+    public enum AdminAction{
+        kick, ban
+    }
 }

core/src/io/anuke/mindustry/net/Registrator.java

@@ -42,6 +42,8 @@ public class Registrator {
             ItemSetPacket.class,
             ItemOffloadPacket.class,
             NetErrorPacket.class,
+            PlayerAdminPacket.class,
+            AdministerRequestPacket.class,
     };
     private static ObjectIntMap<Class<?>> ids = new ObjectIntMap<>();