We have x and y right??? if we add "z"? So we can check layers while modding!

Idea is: There is a particle at 200(x), 200(y). It's layer (z) is 0.

We have another particle at 200(x), 200(y). It's layer (z) is 1.

if we want to delete the first particle we can just use x and y.

if we want to delete the seconds particle we can use x, y and z.

(Sorry for my english. Also making this is very hard thing because  you need to add a lot of variables and

you need to change some methods, add methods (functions))