private void RemoveAsterice()
 {
     for (int i = AstericeList.Count - 1; i > -1; i--)
     {
         Asterice asterice = AstericeList[i];
         //Remove asterice when outside screen + then some
         if (Math.Abs(asterice.X) > 800 + 30 || Math.Abs(asterice.Y) > 450 + 30)
         {
             asterice.Destroy();
         }
     }
 }
        private void DestroyEverything()
        {
            for (int i = AstericeList.Count - 1; i > -1; i--)
            {
                Asterice asterice = AstericeList[i];
                asterice.Destroy();
            }

            for (int i = ExplosionList.Count - 1; i > -1; i--)
            {
                Explosion explosion = ExplosionList[i];
                explosion.Destroy();
            }

            for (int i = MainShipList.Count - 1; i > -1; i--)
            {
                MainShip asterice = MainShipList[i];
                asterice.Destroy();
            }

            for (int i = EnemySpinnerList.Count - 1; i > -1; i--)
            {
                EnemySpinner asterice = EnemySpinnerList[i];
                asterice.Destroy();
            }

            for (int i = EnemyJumperList.Count - 1; i > -1; i--)
            {
                EnemyJumper asterice = EnemyJumperList[i];
                asterice.Destroy();
            }

            for (int i = EnemyKamikazeList.Count - 1; i > -1; i--)
            {
                EnemyKamikaze asterice = EnemyKamikazeList[i];
                asterice.Destroy();
            }

            for (int i = BulletList.Count - 1; i > -1; i--)
            {
                Bullet asterice = BulletList[i];
                asterice.Destroy();
            }

            this.EnemySpawnerInstance.Destroy();
            this.TravelBackgroundInstance.Destroy();
            this.HealthBar.Destroy();
            this.ScoreBar.Destroy();
            this.UnloadsContentManagerWhenDestroyed = true;
        }
 private void AstericeVsMainShipCollisionActivity()
 {
     for (int i = MainShipList.Count - 1; i > -1; i--)
     {
         for (int j = AstericeList.Count - 1; j > -1; j--)
         {
             MainShip mainShip = MainShipList[i];
             Asterice asterice = AstericeList[j];
             if (mainShip.Polygon.CollideAgainst(asterice.Polygon))
             {
                 this.save.Data.astericeNumber += asterice.Value;
                 asterice.Destroy();
                 break;
             }
         }
     }
 }