Conditionally updating a variable with choose()

Question

How do I create and update a variable with a conditional? I need a number to be calculated based on an arrangement of requirements. Here is a very simplified example of what I was trying to do:

`g.addV('App').property('name', 'A').property('requirement1', true).property('requirement2', true).
addV('App').property('name', 'B').property('requirement1', true).property('requirement2', false).
addV('App').property('name', 'C').property('requirement1', false).property('requirement2', false).property('requirement3', true)

g.V().
    project('id', 'name', 'requirement1', 'requirement2', 'value').
    by('id').
    by('name').
    by('requirement1').
    by('requirement2').
    by(
        map{
            total = 0;
            choose(
                and(
                    has('requirement1', true),
                    has('requirement2', true)),
                constant(total + 1),
                identity()
            )
            choose(
                has('requirement3', true),
                constant(total + 1),
                identity()
            )
            total
        }
    )`

I ultimately found a solution, but I ended up having to create different conditionals for every possible combination. It is repetitive and hard to read. Is there a way to do this, that is similar to what I shared above? Thank you!

Gaming

Programming

Conditionally updating a variable with choose()