Support ruby-only event handler chains; Add friend/ignore list support and private messaging; Format.

data/plugins/chat-privacy/privacy.rb

@@ -0,0 +1,11 @@
+require 'java'
+
+java_import 'org.apollo.game.model.settings.PrivacyState'
+
+on :event, :privacy_option do |ctx, player, event|
+  player.chat_privacy = event.chat_privacy
+  player.friend_privacy = event.friend_privacy
+  player.trade_privacy = event.trade_privacy
+
+  update_friends(player, event.friend_privacy == PrivacyState::OFF ? 0 : player.world_id)
+end