Add comprehensive tests and optimizations for simulation and UI performance

- Introduced a new benchmark save script to create a stress test scenario with extreme values for simulation performance.
- Added a full UI benchmark script to measure frame rates and performance metrics during UI interactions.
- Implemented tests for coarse generations to ensure population transitions are handled correctly.
- Created tests for extra parameters to validate the loading and application of configuration settings.
- Developed simulation optimization tests to verify the efficiency of population drift and rounding mechanisms.
- Added split optimization tests to ensure accurate allocation and rounding behavior in population management.
- Included startup parameter tests to confirm the correct initialization of global parameters before scene readiness.
- Enhanced the audit rounding ledger to compare selective and full rounding results for consistency.

autoload/global.gd

@@ -2,6 +2,7 @@ extends Node
 const E = preload("res://world/owniverse/math/exact.gd")
 
 const SPEED_LIMIT: int = 6
+const SUPPORTED_LOCALES: PackedStringArray = ["en", "ru"]
 
 # Write a readable diagnostic copy next to the encrypted save. Never used for loading.
 var save_plaintext_copy: bool = true
@@ -15,16 +16,20 @@ var Settings: Dictionary = {
         "language": "en",
     }
 
-# TODO getter setter for locale
-
 #var Locales: Dictionary = {}
-var Locale = "en"
+var _locale: String = "en"
+var Locale: String:
+    get:
+        return _locale
+    set(value):
+        set_locale(value)
 
 var OwniverseEntities: Dictionary = {}
 var OwniverseItems: Dictionary = {}
 var Templates: Dictionary = {}
 var LifeRules: Dictionary = {}
 var CivilizationRules: Dictionary = {}
+var ExtraParams: Dictionary = {}
 
 var Music: Dictionary = {}
 var Effects: Dictionary = {}
@@ -32,6 +37,12 @@ var Effects: Dictionary = {}
 var batch_count: float = 40.0 # must be even not odd
 
 
+func set_locale(locale: String) -> void:
+    _locale = locale if SUPPORTED_LOCALES.has(locale) else "en"
+    Settings.language = _locale
+    TranslationServer.set_locale(_locale)
+
+
 #func get_localized_item_description(item_id: String, item: String) -> String:
     #if Locales[Locale].has(item_id):
         #return Locales[Locale][item_id][item]
@@ -68,8 +79,14 @@ func format_number(value, digits: int = 0) -> String:
     return E.grouped(value, digits)
 
 
+func _init() -> void:
+    # Stage constructs its world before autoload _ready callbacks run.
+    ExtraParams = preload("res://data/owniverse_extra_param_loader.gd").get_data()
+
+
 func _ready() -> void:
-    
+    set_locale(str(Settings.language))
+
     LifeRules = OwniverseLifeRuleLoader.get_data()
     OwniverseEntities = OwniverseEntityLoader.get_data()
     OwniverseItems = OwniverseItemLoader.get_data()

autoload/save_manager.gd

@@ -374,8 +374,10 @@ func load_settings():
     var config = ConfigFile.new()
     var err = config.load(SAVE_PATH)
     if E.ne(err, OK):
+        Global.set_locale(str(Global.Settings.language))
         return false
     for item in Global.Settings:
         Global.Settings[item] = config.get_value(SETTING_SECTION, item, Global.Settings[item])
+    Global.set_locale(str(Global.Settings.language))
     return true
 #endregion