How to fan-out GameObjects

Question

Preinformation : Using Kinect v2 and Unity3D v5.4

Background : I have a parent GameObject , which is a 3D model (eg a MacBook). This parent GameObject is composed of several child GameObjects . These child GameObjects are the smaller Details of the 3D model (eg Display, USB-Port, Keyboard etc.). The MacBook itself can be rotated and scaled. What i want to do is fanning out these child GameObjects proportional when using the mousewheel.

Problem : How do i implement this fan-out mechanism, independent of the current rotation of the parent GameObject .

The image makes it hopefully more clear. The rectangles are representing child GameObjects .

image

Thanks in advance :)

Answer 1

If you want to just change distance between your parent and childs add this to your child objects:

void Update ()
{
    transform.localPosition += (transform.localPosition.normalized * Input.GetAxis("Mouse ScrollWheel") * 0.4f);
}

Or this to your parent:

void Update ()
{
    for (int i = 0; i < transform.childCount; i++)
    {
        Transform t = transform.GetChild(i);
        t.localPosition += t.localPosition.normalized * Input.GetAxis("Mouse ScrollWheel") * 0.4f;
    }
}

Edit:

But if you want them to follow their forward direction use this rather:

void Update ()
{
    transform.localPosition += ((transform.localRotation * Vector3.forward) * Input.GetAxis("Mouse ScrollWheel") * 0.4f);
}