Backported probabilistic runes. Can now toggle between revision 581, 573 and 570 behavior via runecrafting_formula_revision in server config

Server/src/main/core/ServerConstants.kt

@@ -317,5 +317,8 @@ class ServerConstants {
 
         @JvmField
         var FORCE_HALLOWEEN_RANDOMS = false
+
+        @JvmField
+        var RUNECRAFTING_FORMULA_REVISION = 581
     }
 }

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

@@ -163,6 +163,7 @@ object ServerConfigParser {
         ServerConstants.NEW_PLAYER_ANNOUNCEMENT = data.getBoolean("world.new_player_announcement", true)
         ServerConstants.HOLIDAY_EVENT_RANDOMS = data.getBoolean("world.holiday_event_randoms", true)
         ServerConstants.FORCE_HALLOWEEN_RANDOMS = data.getBoolean("world.force_halloween_randoms", false)
+        ServerConstants.RUNECRAFTING_FORMULA_REVISION = data.getLong("world.runecrafting_formula_revision", 581).toInt()
 
         val logLevel = data.getString("server.log_level", "VERBOSE").uppercase()
         ServerConstants.LOG_LEVEL = parseEnumEntry<LogLevel>(logLevel) ?: LogLevel.VERBOSE