So I am trying to make a quick app the calculates the multiplier of certain teams when players are betting on them.

For example say we have two teams: Team a and team b with starting values of 1 so, also say we have 4 players. The main idea is that the more players that bet on team a, will make the the value of team b go up and the value of team a will go down so that if you bet 20 dollars on team a and 3 other people are betting on it then the value will be 25 cents per dollar won. I'll apply a greater definition if someone doesn't understand, but let me get to the actual part of the question that I need answered.

Basically I have started by creating the teams I have given them arbitrary names so that no one knows what I am doing with this. But basically I have created a enum with 3 teams and inside this enum I have created a function that will multiply the values, and I did it just like one of the swift video says how to do, but I am getting an error when I name two values, naming just one is ok, but the minute that I name two I get an "tuple pattern element label 'num' must be '_'. I don't know what this means and I have tried to search for this and found nothing. I am using swift three I don't know if that makes a difference considering the videos are updated to this version of the language.

Here is the code that is giving me problems:

  enum Teams {
      case blahOne(Float,Float)
      case blahTwo(Float, Float)
      case blahThree(Float, Float)    

      func calcMultiplier() -> Multi {

          switch self {

          case .blahOne(num: let num, multi: let multi): return Multi(num: num, times: multi)
          case .blahTwo(num: let num,multi: let multi): return Multi(num: num, times: multi)
          case .blahThree(num: let num,multi: let multi): return Multi(num: num, multi: multi)
          }
      }    
  }

  struct Multi {
      var num: Float
      var multi: Float    
  }

it is giving me problems in the function where I say "num: let num, multi: let multi"

[MOD: edited code block - srh]