How to give a condition based on the following situation

Suppose there is a condition 'X', and i have two robots R1 and R2. If R1 and R2 both satisfies X, but i want to chose only one of them. How to write a code for this.

Can anyone help.

Answer 1

[John D'Errico]

Why does it matter? Just pick one of them. Or choose randomly between them. Or on odd numbered days, choose the first, on even numbered days, the second. How do you write it? Hard to show you, since you don't say how the test works, or what choosing one of them means.

if R1
  % then choose R1
  %    Do stuff with R1
  
elseif R2
  % choose R2
  %    Do stuff with R2
  
else
  % Have some coffee, while I wonder what I should do now
  
end

So if R1 satisfies the condition, then it ALWAYS uses R1. If not, then it checks to see if R2 is an option. If not, then, well, you don't tell us.

The other alternatives are just as easy to write. For example:

if R1
  if R2
    % Both are an option, so pick randomly
    if rand<.5
      % Choose R1
    else
      % choose R2  
    end
  else
    % choose R1
  end
  
else
  if R2
    % choose R2
  else
    % this is the case where we have no options.
    
  end
end

[Pallov Anand]

thanks got it