allow "\w" as "/whisper" alias

modules/round/src/main/Messenger.scala

@@ -15,7 +15,7 @@ final class Messenger(
 
   def system(game: Game, message: SelectI18nKey, args: Any*) {
     val translated = message(i18nKeys).en(args: _*)
-    chat ! SystemTalk(game.id + "/w", translated)
+    chat ! SystemTalk(watcherId(game.id), translated)
     if (game.nonAi) chat ! SystemTalk(game.id, translated)
   }
 
@@ -26,17 +26,20 @@ final class Messenger(
 
   def watcher(gameId: String, member: Member, text: String) =
     member.userId foreach { userId =>
-      chat ! UserTalk(gameId + "/w", userId, text)
+      chat ! UserTalk(watcherId(gameId), userId, text)
     }
 
-  private val whisper = "/whisper "
+  private val whisperCommands = List("/whisper ", "/w ")
 
   def owner(gameId: String, member: Member, text: String) =
     chat ! (member.userId match {
-      case Some(userId) if text startsWith whisper =>
-        UserTalk(gameId + "/w", userId, text drop whisper.size)
       case Some(userId) =>
-        UserTalk(gameId, userId, text, public = false)
+        whisperCommands.collectFirst {
+          case command if text startsWith command =>
+            UserTalk(watcherId(gameId), userId, text drop command.size)
+        } | UserTalk(gameId, userId, text, public = false)
       case None => PlayerTalk(gameId, member.color.white, text)
     })
+
+  private def watcherId(gameId: String) = s"$gameId/w"
 }