Algodoo

What scripting are you talking about? I looked over your scene and I do not see any scripting at all.

yeah it's all attraction

I just use the attraction script,the attraction sript and the material velocity,i want to try to make better marble races and more scenes using scripting

i mean "the adeshion script"

That's not "scripting". All you did was to adjust adhesion or attraction values. It's sort of like when you adjust the screen resolution on your computer monitor you are not "programming". Scripting is programming. It's when you write a series of commands that make the geometry perform some actions, such as change color when it collides with another object.

Scripting is using oncollide, poststep, onhitbylaser etc...

Oh ok then, I will try to do better