Algodoo

This will work Okay as long as the box does not get rotated. If the box rotates in a scene, then the edges of the box will not be detected in their proper positions. That's because the script does not take the box "angle" into consideration. If you want to detect a box in a scene in which the box might get rotated, then you will need to use a script that's a little more complex. Here is a very good tutorial by kilinich in the Algodoo forum that explains how to do this with a circle, a box, and a polygon: Mouse Over Effects

Okay, But this scene are Very good. Plz.

Yes, Lester, Your scene is very good!

Thank you Thank you Thank you!