hi, sorry for the late reply.
@webdynamic I see my capx doesn't work anymore since all the update
but all I did was create 6 "grey" balls around the one that get hit, those are the 6 potential positions (maybe 4 is enough(?))
then, juste update and check if free
for the inital position, each have their own local x,y coord variable, if y=impair, I just add +20 at their objet.X
@robert that is planned, but I still don't know how I'll implement this (procedural, table?), I've already had a line at the top that make the bubble progressively go down