public void setActive(bool active) { if (mBackTile != null && mBackTile.isActive() != active) { mBackTile.setActive(active); } if (mMidTile != null && mMidTile.isActive() != active) { mMidTile.setActive(active); } if (mObjectTile != null && mObjectTile.isActive() != active) { mObjectTile.setActive(active); } if (mEffect != null && mEffect.isActive() != active) { mEffect.setActive(active); } }