[SOLVED]Collision and clipping

GDevelop general
1

I was wondering if there is any possible way to make an object when it collides with another object of the same type to phase through itself im creating a plinko game and i want to pervent ball stacking

2

the way i did this was by doing this simple line

image
image1882×78 9.29 KB

the ball starts off with mask one on, so that disables mask one and enables mask 2