Day 6

 

Calculating points at end of each round

 

let difference = abs(currentValue - targetValue)
        let points = 100 - difference

 

 

Calculating score at end of each round

 

• Initialize score as a global variable

 

var score = 0

 

• Update score as the sum of the previous score and current round’s points.

 

score += points

 

Displaying score at correct label

 

• First creating an IBOutlet for the label to display the score.

 

@IBOutlet weak var scoreLabel: UILabel!

 

• Connecting this outlet to the label displaying 999999 currently.
• Updating the value of scoreLabel by converting score to string in updateLabels method.

 

scoreLabel.text = String(score)

 

 

 

Tracking rounds

 

• Initialize a global variable currentRound to 0.

 

var currentRound = 0

 

• Creating an IBOutlet for the label to display the round.

 

@IBOutlet weak var roundLabel: UILabel!

 

• Connecting this outlet to the label displaying 999 currently.
• Updating the value of roundLabel by converting currentRound to string in updateLabels method.
• Incrementing currentRound by 1 every time new round starts in startNewRound method

 

 

func startNewRound(){
        targetValue = Int(arc4random_uniform(101))
        currentValue = 50
        currentRound += 1
        slider.value = Float(currentValue)
        updateLabels()
    }

    func updateLabels(){
        targetLabel.text = String(targetValue)
        scoreLabel.text = String(score)
        roundLabel.text = String(currentRound)
    }