Using variables we can simulate gravitation force on a given model. Let’s take a look at the following code:

s is a sphere having material="rock2"

var distance=0.4

do 21 times

s.move(y+distance) in 0.05 seconds

distance=distance-0.04

end do

First we create a Sphere then we move it 21 times along the Y axis, each time a slightly different **distance **which is initiated to 0.4 and reduced by 0.04 every iteration. This gives us the illusion of gravitation force applied on our 3d model.