Random Movement

Hi, I have been researching on a random movement script for an object on a plane. However, most of them concern with attaching the script to the object instead of on the plane.

What I want is how do you write a script onto a plane, to trigger anything that is on or lands on the plane to start random movement - essentially a random movement area that causes objects to move randomly, instead of random movement objects each individually move randomly according to their own script?

 

You could use on OnCollisionStay to send some random direction/velocity to each colliding object.

 

Thanks! Gonna try that out, will report back.