public static int Compare(SpatialManager.CollisionResult a, SpatialManager.CollisionResult b)
 {
     return a.Distance.CompareTo(b.Distance);
 }
 public override void ExitScreen()
 {
     if (this.MultiThread)
     {
     //    this.ShipUpdateThread.Abort();
         this.WorkerThread.Abort();
         foreach (Thread thread in this.SystemUpdateThreadList)
             thread.Abort();
     }
     this.EmpireUI.empire = (Empire)null;
     this.EmpireUI = (EmpireUIOverlay)null;
     UniverseScreen.DeepSpaceManager.CollidableObjects.Clear();
     UniverseScreen.DeepSpaceManager.CollidableProjectiles.Clear();
     UniverseScreen.ShipSpatialManager.CollidableObjects.Clear();
     this.ScreenManager.Music.Stop(AudioStopOptions.Immediate);
     this.NebulousShit.Clear();
     this.bloomComponent = (BloomComponent)null;
     this.bg3d.BGItems.Clear();
     this.bg3d = (Background3D)null;
     this.playerShip = (Ship)null;
     this.ShipToView = (Ship)null;
     foreach (Ship ship in (List<Ship>)this.MasterShipList)
         ship.TotallyRemove();
     this.MasterShipList.ApplyPendingRemovals();
     this.MasterShipList.Clear();
     foreach (SolarSystem solarSystem in UniverseScreen.SolarSystemList)
     {
         solarSystem.spatialManager.CollidableProjectiles.Clear();
         solarSystem.spatialManager.CollidableObjects.Clear();
         solarSystem.spatialManager.ClearBuckets();
         solarSystem.spatialManager.Destroy();
         solarSystem.spatialManager = (SpatialManager)null;
         solarSystem.FiveClosestSystems.Clear();
         foreach (Planet planet in solarSystem.PlanetList)
         {
             planet.TilesList = new List<PlanetGridSquare>();
             if (planet.SO != null)
             {
                 planet.SO.Clear();
                 this.ScreenManager.inter.ObjectManager.Remove((ISceneObject)planet.SO);
                 planet.SO = (SceneObject)null;
             }
         }
         foreach (Asteroid asteroid in (List<Asteroid>)solarSystem.AsteroidsList)
         {
             if (asteroid.GetSO() != null)
             {
                 asteroid.GetSO().Clear();
                 this.ScreenManager.inter.ObjectManager.Remove((ISceneObject)asteroid.GetSO());
             }
         }
         solarSystem.AsteroidsList.Clear();
         foreach (Moon moon in solarSystem.MoonList)
         {
             if (moon.GetSO() != null)
             {
                 moon.GetSO().Clear();
                 this.ScreenManager.inter.ObjectManager.Remove((ISceneObject)moon.GetSO());
             }
         }
         solarSystem.MoonList.Clear();
     }
     foreach (Empire empire in EmpireManager.EmpireList)
         empire.CleanOut();
     foreach (SpaceJunk spaceJunk in (List<SpaceJunk>)UniverseScreen.JunkList)
     {
         spaceJunk.trailEmitter = (ParticleEmitter)null;
         spaceJunk.JunkSO.Clear();
         this.ScreenManager.inter.ObjectManager.Remove((ISceneObject)spaceJunk.JunkSO);
         spaceJunk.JunkSO = (SceneObject)null;
     }
     UniverseScreen.JunkList.Clear();
     this.SelectedShip = (Ship)null;
     this.SelectedFleet = (Fleet)null;
     this.SelectedPlanet = (Planet)null;
     this.SelectedSystem = (SolarSystem)null;
     ShieldManager.shieldList.Clear();
     ShieldManager.PlanetaryShieldList.Clear();
     this.PlanetsDict.Clear();
     this.ClickableFleetsList.Clear();
     this.ClickableShipsList.Clear();
     this.ClickPlanetList.Clear();
     this.ClickableSystems.Clear();
     UniverseScreen.DeepSpaceManager.ClearBuckets();
     UniverseScreen.DeepSpaceManager.CollidableObjects.Clear();
     UniverseScreen.DeepSpaceManager.CollidableObjects.Clear();
     UniverseScreen.DeepSpaceManager.CollidableProjectiles.Clear();
     UniverseScreen.DeepSpaceManager.ClearBuckets();
     UniverseScreen.DeepSpaceManager.Destroy();
     UniverseScreen.DeepSpaceManager = (SpatialManager)null;
     UniverseScreen.SolarSystemList.Clear();
     this.starfield.UnloadContent();
     this.starfield.Dispose();
     UniverseScreen.SolarSystemList.Clear();
     this.beamflashes.UnloadContent();
     this.explosionParticles.UnloadContent();
     this.photonExplosionParticles.UnloadContent();
     this.explosionSmokeParticles.UnloadContent();
     this.projectileTrailParticles.UnloadContent();
     this.fireTrailParticles.UnloadContent();
     this.smokePlumeParticles.UnloadContent();
     this.fireParticles.UnloadContent();
     this.engineTrailParticles.UnloadContent();
     this.flameParticles.UnloadContent();
     this.sparks.UnloadContent();
     this.lightning.UnloadContent();
     this.flash.UnloadContent();
     this.star_particles.UnloadContent();
     this.neb_particles.UnloadContent();
     this.SolarSystemDict.Clear();
     ShipDesignScreen.screen = (UniverseScreen)null;
     Fleet.screen = (UniverseScreen)null;
     Bomb.screen = (UniverseScreen)null;
     Anomaly.screen = (UniverseScreen)null;
     PlanetScreen.screen = (UniverseScreen)null;
     MinimapButtons.screen = (UniverseScreen)null;
     Projectile.contentManager = this.ScreenManager.Content;
     Projectile.universeScreen = (UniverseScreen)null;
     ShipModule.universeScreen = (UniverseScreen)null;
     Asteroid.universeScreen = (UniverseScreen)null;
     Empire.universeScreen = (UniverseScreen)null;
     SpaceJunk.universeScreen = (UniverseScreen)null;
     ResourceManager.universeScreen = (UniverseScreen)null;
     Planet.universeScreen = (UniverseScreen)null;
     Weapon.universeScreen = (UniverseScreen)null;
     Ship.universeScreen = (UniverseScreen)null;
     ArtificialIntelligence.universeScreen = (UniverseScreen)null;
     MissileAI.universeScreen = (UniverseScreen)null;
     Moon.universeScreen = (UniverseScreen)null;
     CombatScreen.universeScreen = (UniverseScreen)null;
     MuzzleFlashManager.universeScreen = (UniverseScreen)null;
     FleetDesignScreen.screen = (UniverseScreen)null;
     ExplosionManager.universeScreen = (UniverseScreen)null;
     FTLManager.universeScreen = (UniverseScreen)null;
     DroneAI.universeScreen = (UniverseScreen)null;
     StatTracker.SnapshotsDict.Clear();
     EmpireManager.EmpireList.Clear();
     this.ScreenManager.inter.Unload();
     //GC.Collect(2, GCCollectionMode.Optimized);
     this.Dispose();
     base.ExitScreen();
 }
        protected void Dispose(bool disposing)
        {
            if (!disposed)
            {
                if (disposing)
                {
                    if (this.ShipList != null)
                        this.ShipList.Dispose();
                    if (this.AsteroidsList != null)
                        this.AsteroidsList.Dispose();
                    if (this.spatialManager != null)
                        this.spatialManager.Dispose();

                }
                this.ShipList = null;
                this.AsteroidsList = null;
                this.spatialManager = null;
                this.disposed = true;
            }
        }