public BridgeVisualization(IEngineWithConnectors engine, Color color)
        {
            this.engine = engine;
            this.color  = color;

            foreach (var proj in engine.GetProjectiles())
            {
                AddObject(new SingleParticle(proj));
            }
        }
 public ConnectorVisualization(IEngineWithConnectors engine) :
     base(engine)
 {
 }