Fixes for invisible players and improper respawning

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

@@ -496,4 +496,18 @@ public class Packets {
             enabled = buffer.get() == 1;
         }
     }
+
+    public static class PlayerDeathPacket implements Packet{
+        public int id;
+
+        @Override
+        public void write(ByteBuffer buffer) {
+            buffer.putInt(id);
+        }
+
+        @Override
+        public void read(ByteBuffer buffer) {
+            id = buffer.getInt();
+        }
+    }
 }

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

@@ -36,6 +36,7 @@ public class Registrator {
             ConnectConfirmPacket.class,
             GameOverPacket.class,
             FriendlyFireChangePacket.class,
+            PlayerDeathPacket.class,
     };
     private static ObjectIntMap<Class<?>> ids = new ObjectIntMap<>();