changing the camera's center of rotation in game mode

Unity Engine
1

Do any of you know a script so that the user can change the center of rotation of objects in the game mode?

For example, I have a parent object with several child objects. The main camera has an orbit, zoom, pan script attached to it, using the center of rotation of the parent object. In game mode, I would like the user to be able to click on the RMB to:

  1. Select one of the child objects in game mode
  2. Highlight the selected child object in [specified] color
  3. Change the camera center of rotation to the selected child object

Any help would be welcome.
Thanks in advance!

2

you can get the name of the child object by raycasting and then change the target of the orbit script.

3

Rather than raycasting you could also put a script on the target objects implementing OnMouseDown(). The objects will need colliders either way.
If you want to assure that only one object at a time is selected you can keep a static variable in the script referencing the currently selected object (or the script on that object), which you then deselect whenever a new selection is made.

the script would be called SelectTarget

static var currentSelection : SelectTarget;

function OnMouseDown()
{
    if( currentSelection ){
        currentSelection.Deselect();
    }
    Select();
}

function Select()
{
    // highlighting and camera retargetting go here
   currentSelection = this;
}

function Deselect()
{
    // undo highlight, etc.
    currentSelection = null;
}