Registration Point Question

[Wayne]

As I have seen and been ask around several forums, this one question keeps coming up. " Can I change the registration point of a object with scripting." The answer is Yes & No. Got you confused? Well you can not physically in run time change it, but you can lie to you viewer/flash player to think it is some where its not.

 

Now I will take you away from the wall and put you out of pain.
The code is small and uses a function to achieve this.
This is the function: 

Code:

function origin()
    {
        var bounds = this.getBounds(this._parent);
        return ({x: (bounds.xMin + bounds.xMax) / 2, y: (bounds.yMin + bounds.yMax) / 2});
    }

Now what we will do is for this example we will rotate an object so you will see the function at work.

This is setting up your rotation: 

Code:

onClipEvent (load)
{   
     this.rotation_speed = 2;
    this.rotation_origin = origin();
}

Now we need to create a loop to keep this running: 

Code:

onClipEvent (enterFrame)
{
    this._rotation = this._rotation + rotation_speed;
    var curr_origin = origin();
    this._x = this._x + (this.rotation_origin.x - curr_origin.x);
    this._y = this._y + (this.rotation_origin.y - curr_origin.y);
}

All this code is set inside a sprite so now draw a box and name it box.
Convert it to a sprite.
Now go to Transform and set your registration point to custom and enter X: -69.65  Y: -78.8.
Now test. If you did everthing right it will rotate as if your Res.Point was set to center.

Hope this helps.

Wayne