Algodoo

Cool! Nicely done.

3D Algodoo? cool!

Another suggestion: I noticed that when I stop the auto-zoom and then restart it a few seconds later, the image makes a "jump" to a different zoom level. That's because you are using sim.time as your timer. When the zoom is stopped, sim-time continues to advance at its normal rate. Then when the zoom is restarted, it jumps to an updated zoom value because that value is always changing even when the zoom motion is stopped. That can be fixed so that the zoom picks up exactly where it was when the zoom gets stopped. Instead of using sim.time as the time base, simply use a timer! Here is the script that I came up with:

scene.my.stopzoom == 1 ? {
_timer = _timer + 0.02;
scene.camera.zoom = sin(_timer * 0.2) ^ 2 * 55 + 17;
scene.camera.pan = [cos(_timer * 0.2) ^ 2 * 4.0 + 4, 0.0]
} : {
scene.my.zoomvalue = scene.camera.zoom;
scene.my.panvalue = scene.camera.pan
}

You also need to initialize the timer each time the scene gets loaded by placing the following script in onSpawn: _timer = 0

Try this and see if you like it.
Oh, by the way, you can adjust the zoom in and out speed by changing the value which gets added to the timer in this script line: _timer = _timer + 0.02;
The value 0.02 seemed about right to me, but you might decide to change it.

Thanks Sir, appriciate and updated scene...

You are welcome, Sir! It works perfectly.