public EnemySpawner(int shipIndex, int emmisionRate, EnemyBehavior behavior)
 {
     this.shipIndex        = shipIndex;
     this.emmisionInterval = emmisionRate;
     this.behavior         = behavior;
 }
 private void OnEnemyDestroy(EnemyBehavior enemy)
 {
     camShaker.Shake(cameraShakeSettings.ShakeParameters);
 }