protected override void SetChildEntity(ref PlungerStaticData staticData, Entity entity)
 {
     staticData.SpringEntity = entity;
 }
 protected abstract void SetChildEntity(ref PlungerStaticData staticData, Entity entity);
 internal abstract void SetChildEntity(ref PlungerStaticData staticData, Entity entity);
 internal override void SetChildEntity(ref PlungerStaticData staticData, Entity entity)
 {
     staticData.FlatEntity = entity;
 }