Ruby Method Arguments - Can they change truth value automatically?

Question

I have this method

def forest(sword, armour, ring)

with its arguments having true or false values, which I declare in the main program as

forest false, false, false

If during the program sword=true && armour=true, is there any way for Ruby to automatically assess whether the arguments are true or false? Could I write something like

forest sword-truth-value, armour-truth-value, ring-truth-value?

The program I'm writing is very long and it would take too many code lines to take every single case into consideration.

Thanks for the help!

Answer 1

To achieve what you are looking for, you should wrap the forest method in a class and define each argument as an instance variable.

class Forest

  attr_accessor :sword, :armour, :ring

  def initialize(sword = false, armour = false, ring = false)
    @sword = sword
    @armour = armour
    @ring = ring
  end

end

So now, you can declare an instance of Forest,

forest = Forest.new

All the variables default to false, unless you explicitly write true.

With the attr_accessor, you can access and set all the variables.

forest.sword #=> false
forest.sword = true
forest.sword #=> true