Add join/leave handler

src/main/kotlin/civilengineering/CivilEngineering.kt

@@ -3,10 +3,7 @@ package civilengineering
 import civilengineering.bridge.MessageHandler
 import civilengineering.bridge.ServerChatHelper
 import civilengineering.command.BridgeCommand
-import civilengineering.eventhandlers.AdvancementEventHandler
-import civilengineering.eventhandlers.ChatMessageHandler
-import civilengineering.eventhandlers.DeathEventHandler
-import civilengineering.eventhandlers.CommandEventHandler
+import civilengineering.eventhandlers.*
 import net.minecraft.advancements.Advancement
 import net.minecraftforge.common.MinecraftForge
 import net.minecraftforge.fml.common.Mod
@@ -63,6 +60,7 @@ object CivilEngineering {
         MinecraftForge.EVENT_BUS.register(DeathEventHandler())
         MinecraftForge.EVENT_BUS.register(CommandEventHandler())
         MinecraftForge.EVENT_BUS.register(AdvancementEventHandler())
+        MinecraftForge.EVENT_BUS.register(JoinLeaveHandler())
     }
 
     @Mod.EventHandler

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

@@ -0,0 +1,32 @@
+package civilengineering.eventhandlers
+
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import net.minecraftforge.fml.common.gameevent.PlayerEvent
+import civilengineering.Util.antiping
+import civilengineering.bridge.ApiMessage
+import civilengineering.bridge.MessageHandler
+import civilengineering.cfg
+
+class JoinLeaveHandler {
+    @SubscribeEvent
+    fun handleJoinEvent(event: PlayerEvent.PlayerLoggedInEvent) {
+        if(cfg!!.relay.joinLeave) {
+            val player:String = event.player.name.antiping()
+            MessageHandler.transmit(ApiMessage(
+                    username = "Server",
+                    text = "$player has connected to the server."
+            ))
+        }
+    }
+
+    @SubscribeEvent
+    fun handleLeaveEvent(event: PlayerEvent.PlayerLoggedOutEvent) {
+        if(cfg!!.relay.joinLeave) {
+            val player:String = event.player.name.antiping()
+            MessageHandler.transmit(ApiMessage(
+                    username = "Server",
+                    text = "$player has disconnected from the server."
+            ))
+        }
+    }
+}