private void CheckEnemyBombCollision()
 {
     foreach (LifetimeEntity entity in this.activeEnemies)
     {
         foreach (SeismicCharge charge in this.deployedBombs)
         {
             Enemy enemy = (Enemy)entity;
             if (entity.HitCircle.Contains(charge.HitCircle) && !charge.HitEnemies.Contains(enemy))
             {
                 enemy.TakeDamage(500);
                 charge.HitEnemies.Add(enemy);
                 GameScore gameScore = GameScore.Instance;
                 gameScore.Add(10);
             }
         }
     }
 }