/// <summary>
/// Finds a set of predefined points on an edge. Normally it's only
/// three - start, middle and end. If the edge type is "principal"
/// and the target has a Collide.Shape, additional points at the surface
/// of the shape may appear.
/// </summary>
/// <param name="edge">Edge to find predefined points on.</param>
/// <returns>Iterator to point on the edge.</returns>
private IEnumerable <Vector3> FindPredefinedEdgePoints(MeshUtils.Edge edge)
{
yield return(edge.Start);
yield return(edge.Center);
yield return(edge.End);
if (edge.Type == MeshUtils.Edge.EdgeType.Triangle || m_collectedData == null || m_collectedData.Target == null || m_collectedData.Target.GetComponent <Shape>() == null)
{
yield break;
}
ShapeUtils utils = m_collectedData.Target.GetComponent <Shape>().GetUtils();
if (utils == null)
{
yield break;
}
ShapeUtils.Direction[] edgeDirections = ShapeUtils.ToDirection(ShapeUtils.ToPrincipal(utils.FindDirectionGivenWorldEdge(edge)));
yield return(utils.GetWorldFace(edgeDirections[0]));
yield return(utils.GetWorldFace(edgeDirections[1]));
}
private void Update(bool symmetricScale)
{
if (Shape == null)
{
return;
}
ShapeUtils utils = Shape.GetUtils();
if (utils == null)
{
return;
}
Undo.RecordObject(Shape, "ShapeResizeTool");
Undo.RecordObject(Shape.transform, "ShapeResizeToolTransform");
Color color = Color.gray;
float scale = 0.35f;
foreach (ShapeUtils.Direction dir in System.Enum.GetValues(typeof(ShapeUtils.Direction)))
{
Vector3 delta = DeltaSliderTool(utils.GetWorldFace(dir), utils.GetWorldFaceDirection(dir), color, scale);
if (delta.magnitude > 1.0E-5f)
{
Vector3 localSizeChange = Shape.transform.InverseTransformDirection(delta);
Vector3 localPositionDelta = 0.5f * localSizeChange;
if (!symmetricScale && utils.IsHalfSize(dir))
{
localSizeChange *= 0.5f;
}
utils.UpdateSize(localSizeChange, dir);
if (!symmetricScale)
{
Shape.transform.position += Shape.transform.TransformDirection(localPositionDelta);
}
}
}
}