Added new Server Properties and cleaned up Login Plugin Packets

- Added option for Modern Forwarding and BungeeGuard (for proxies that are connected to older servers)
- Made Modern, Bungeecord and Bungeeguard mutually exclusive
- Fixed PacketLoginInPluginMessaging, structure was incorrect
- Added `readUUID` in DataTypeIO

src/main/resources/mapping.json

@@ -9,7 +9,7 @@
   "LoginOut": {
     "PacketLoginOutLoginSuccess": "0x02",
     "PacketLoginOutDisconnect": "0x00",
-    "PacketLoginOutPluginMessaging": "0x04",
+    "PacketLoginOutPluginMessaging": "0x04"
   },
   "PlayIn": {
     "0x0F": "PacketPlayInKeepAlive",

src/main/resources/server.properties

@@ -7,9 +7,21 @@ server-port=30000
 #Server ip, localhost for local access only
 server-ip=0.0.0.0
 
-#Whether this is server is behind a bungeecord proxy
+#Whether this server is behind a bungeecord proxy
+#Mutually exclusive with velocity-modern and bungee-guard
 bungeecord=false
 
+#Whether this server is behind a velocity proxy with modern player forwarding
+#Mutually exclusive with bungeecord and bungee-guard
+velocity-modern=false
+
+#Whether this server is behind a bungeecord proxy with BungeeGuard installed (velocity can do this too for <1.13)
+#Mutually exclusive with bungeecord and velocity-modern
+bungee-guard=false
+
+#For Velocity Modern Forwarding or BungeeGuard a list (separated by `;`) of valid secrets
+forwarding-secrets=
+
 #World Name and the Schematic file containing map
 level-name=world;spawn.schem