// show an outline when editing polygon vertices
void DrawShapeBorders(Shape shape)
{
Vector2 scale = shape.GetScale();
Vector3[] rect = new Vector3[5];
rect[0] = shape.transform.TransformPoint(new Vector3(-0.5f * scale.x, 0.5f * scale.y, 0));
rect[1] = shape.transform.TransformPoint(new Vector3(-0.5f * scale.x, -0.5f * scale.y, 0));
rect[2] = shape.transform.TransformPoint(new Vector3(0.5f * scale.x, -0.5f * scale.y, 0));
rect[3] = shape.transform.TransformPoint(new Vector3(0.5f * scale.x, 0.5f * scale.y, 0));
rect[4] = rect[0];
Handles.color = Color.white;
Handles.DrawAAPolyLine(2f, rect);
}
