Implemented Global Chat

Added global chat feature, so players can still maintain global communication while being in their own clan chat
An individual player can opt out of global chat by using the ::muteglobal command
Implemented automatic message splitting for clan and global chat
Implemented colour selection for global chat (prefix your message with hex colour code, e.g. //%690420 before the message)

Server/src/main/core/game/system/communication/GlobalChat.kt

@@ -0,0 +1,40 @@
+package core.game.system.communication
+
+import core.api.Commands
+import core.api.getAttribute
+import core.api.sendMessage
+import core.api.setAttribute
+import core.game.system.command.Privilege
+import core.game.world.repository.Repository
+import core.tools.colorize
+
+class GlobalChat : Commands {
+    override fun defineCommands() {
+        define("muteglobal", Privilege.STANDARD, "", "Toggles global chat on or off.") {player, _ ->
+            val original = getAttribute(player, ATTR_GLOBAL_MUTE, false)
+            setAttribute(player, ATTR_GLOBAL_MUTE, !original)
+            sendMessage(player, "Global chat is now ${if (original) "ON" else "OFF"}.")
+            return@define
+        }
+    }
+
+    companion object {
+        val ATTR_GLOBAL_MUTE = "/save:globalmute"
+        fun process(sender: String, message: String) {
+            val msgSD = prepare(sender, message, false)
+            val msgHD = prepare(sender, message, true)
+            for (player in Repository.players.filter { !getAttribute(it, ATTR_GLOBAL_MUTE, false) }) {
+                if (player.interfaceManager.isResizable)
+                    sendMessage(player, msgHD)
+                else
+                    sendMessage(player, msgSD)
+            }
+        }
+
+        private fun prepare(sender: String, message: String, isResizable: Boolean): String {
+            val baseColor = if (isResizable) "%G" else "%7512ff"
+            val bracketColor = if (isResizable) "%ffffff" else "%000000"
+            return colorize("$bracketColor[${baseColor}G$bracketColor] $sender: ${baseColor}$message")
+        }
+    }
+}

Server/src/main/core/game/system/config/ServerConfigParser.kt

@@ -133,6 +133,7 @@ object ServerConfigParser {
         ServerConstants.DISCORD_MOD_WEBHOOK = data.getString("server.moderation_webhook", "")
         ServerConstants.NOAUTH_DEFAULT_ADMIN = data.getBoolean("server.noauth_default_admin", false)
         ServerConstants.DRAGON_AXE_USE_OSRS_SPEC = data.getBoolean("world.dragon_axe_use_osrs_spec", false)
+        ServerConstants.ENABLE_GLOBALCHAT = data.getBoolean("world.enable_globalchat", true)
     }