public void EnemyKilled()
 {
     remainingEnemies--;
     if (remainingEnemies == 0)
     {
         enemyDoor.OpenDoor();
         // Spawn Ball;
         m_itemGreen.Spawn(m_itemSpawnGreen.position);
     }
 }
 public void CannonDestroid()
 {
     remainingCannons--;
     if (remainingCannons == 0)
     {
         cannonDoor.OpenDoor();
         // Spawn Cube
         m_itemBlue.Spawn(m_itemSpawnBlue.position);
     }
 }