Best way to create a blank actionscript class

i want to create a reusable class that holds variables and functions but will never have any scene components.

i tried using just a plain blueprint object class and using a variable in actors, but it only pulled errors when trying to access its functions.

more details - i was creating a pseudo 2d int array class that has functions built in for storing and retrieving data in a 1d int array.

so do i need to create it as an actor parent class? or a actor component parent class? before i always just stored the mathmatical functions for going from a flat number to a 2d number in a function library but then u have to store and pass the max width of the 2d array every time and i thought it would just be easier to create a reusable class to call when needed.

Access none? Did you construct the object?