Abstract antiping into its own function

src/main/kotlin/civilengineering/Util.kt

@@ -0,0 +1,13 @@
+package civilengineering
+
+class Util {
+    companion object {
+        const val ZWSP: Char = '\u200b'
+
+        //Inserts a zero-width space at index 1 in the string'
+        @JvmStatic
+        fun antiping(str: String): String {
+            return str[0].toString()+ZWSP+str.substring(1)
+        }
+    }
+}

src/main/kotlin/civilengineering/eventhandlers/AdvancementEventHandler.kt

@@ -2,6 +2,7 @@ package civilengineering.eventhandlers
 
 import civilengineering.CivilEngineering
 import civilengineering.CivilEngineeringConfig
+import civilengineering.Util
 import civilengineering.bridge.ApiMessage
 import civilengineering.bridge.MessageHandler
 import civilengineering.cfg
@@ -13,9 +14,8 @@ class AdvancementEventHandler {
     fun handleAdvancements(event: AdvancementEvent) {
         if(cfg!!.relay.advancements && event.advancement.display != null) {
             val zwsp: Char = '\u200B'
-            var player: String = event.entityPlayer.name
-            player = player[0].toString()+zwsp+player.substring(1) //antiping
-            //toString is necessary, otherwise the JVM thinks we're trying to do integer addition
+            var player: String = Util.antiping(event.entityPlayer.name)
+
             MessageHandler.transmit(ApiMessage("Server",player+" has earned the advancement "+event.advancement.displayText.unformattedText))
         }
     }

src/main/kotlin/civilengineering/eventhandlers/DeathEventHandler.kt

@@ -1,5 +1,6 @@
 package civilengineering.eventhandlers
 
+import civilengineering.Util
 import civilengineering.bridge.ApiMessage
 import civilengineering.bridge.MessageHandler
 import civilengineering.cfg
@@ -14,8 +15,7 @@ class DeathEventHandler {
             val entity = event.entityLiving
             if (entity is EntityPlayer) {
                 var message: String = entity.getCombatTracker().deathMessage.unformattedText
-                message = message[0].toString() + '\u200b' + message.substring(1) //antiping
-                MessageHandler.transmit(ApiMessage(username = "Server", text = message))
+                MessageHandler.transmit(ApiMessage(username = "Server", text = Util.antiping(message)))
             }
         }
     }