Flyt movieclip tilfældigt rundt efter vist antal frames.

fieldx=0;
fieldy=0;
fieldw=400;
fieldh=300;
xspace=60;
yspace=37;

function moveMCinGrid(_mc){
    _mc._x=random(fieldw/xspace)*xspace;
    _mc._y=random(fieldh/yspace)*yspace;
}
// test_mc instanceName på MovieClip
interval=setInterval(moveMCinGrid,2000,test_mc);

hov.. mangler jo lige fieldx og - y

fieldx=100;
fieldy=100;
fieldw=400;
fieldh=300;
xspace=60;
yspace=37;

function moveMCinGrid(_mc){
    _mc._x=fieldx+random(fieldw/xspace)*xspace;
    _mc._y=fieldy+random(fieldh/yspace)*yspace;
}
// test_mc instanceName på MovieClip
interval=setInterval(moveMCinGrid,2000,test_mc);

Super. Et lile svar? :-)

et lille svar :)