is there a function that can I use in condition to say (if a varaible was sent) so do something Anylogic

Question

I would like to do a condition in my simulation that says (if the quantityToOrder was sent, then the currentStock decrement by the quantityToOrder value) I didn't know how to do it in Anylogic.

screenshot of the problem

Answer 1

Do not do it like that. Condition-based modelling is very error-prone (same for state chart conditions).

Instead, wherever you send your orders off, you reduce the currentStock by the quantityOrdered

At that point, you can easily add if-conditions to check if you want to order in the first place, like:

if(weatherIsNice()) {
    currentStock -= qtyOrdered;
}