 import ui.WorldDataScreen;
 
 public class RootDisplay extends LayoutGroup {
-    private static const SETTINGS_MAIN_ID:String            = "settingsMain";
-    private static const SETTINGS_WHEEL_DATA_ID:String      = "wheelData";
-    private static const SETTINGS_WORLD_DATA_ID:String      = "worldData";
-    private static const SETTINGS_CONTROLS_ID:String        = "controls";
+    private static const SETTINGS_MAIN_ID:String = "settingsMain";
+    private static const SETTINGS_WHEEL_DATA_ID:String = "wheelData";
+    private static const SETTINGS_WORLD_DATA_ID:String = "worldData";
+    private static const SETTINGS_CONTROLS_ID:String = "controls";
 
     private var _gameInput:GameInput;
 
     private var _tirePhysics:TirePhysics;
-    private var _stepDt:Number                              = 0.01;
-    private var _subStepCount:int                           = 10;
+    private var _stepDt:Number = 0.01;
+    private var _subStepCount:int = 10;
 
     private var _settings:StackScreenNavigator;
     private var _content:AnimationScreen;
 
-    private var _prevTime:int                               = -1;
-    private var _excessDt:Number                            = 0;
+    private var _prevTime:int = -1;
+    private var _excessDt:Number = 0;
 
     public function RootDisplay() {
         addEventListener(Event.ADDED_TO_STAGE, onAddedToStage);

import feathers.layout.AnchorLayoutData;
import feathers.motion.Slide;
import feathers.themes.MinimalDesktopTheme;

import flash.ui.GameInput;
import flash.utils.getTimer;

            _prevTime = getTimer();
        }
        else {
            var currTime:int = getTimer();
            var dt:Number = _excessDt + (currTime - _prevTime) / 1000.0;
            var cycleCount:int = int(dt / _stepDt);

            _excessDt = dt - _stepDt * cycleCount;
            _prevTime = currTime;

            _tirePhysics.step(_stepDt, _subStepCount);
