Increment value in an array of dictionaries - arrays

Question

I'm trying to calculate the number of times a specific number is rolled in a set of six six-sided dice, to determine wether or not I have three of a kind, four of a kind, etc.
I can pull the face value of each die rolled and compare it to the faces on a 6 sided die but can't get the "qtyRolled" key/value to increment.
func rollDice() {
currentRoll.removeAll()
for _ in currentDiceArray {
let num: UInt32 = arc4random_uniform(UInt32(currentDieFaceArray.count))
let currentDieData = currentDieFaceArray[Int(num)]
let faceValue = currentDieData["faceValue"]
currentRoll.append(faceValue as! Int)
}
print(currentRoll)
getQtyOfDieFaces()
//checkForScoringCombos()
}
func getQtyOfDieFaces() {
for die in currentRoll {
for dieData in currentDieFaceArray {
var currentDieData = dieData
let qtyRolled = currentDieData["qtyRolled"] as! Int
let faceValue = currentDieData["faceValue"] as! Int
print("faceValue: \(faceValue)")
print("Die: \(die)")
if faceValue == die {
currentDieData["qtyRolled"] = qtyRolled + 1 as AnyObject
}
}
}
for currentDieData in currentDieFaceArray {
print(currentDieData["qtyRolled"]!)
}
}
Here are my data structures
var currentDieFaceArray = [[String:AnyObject]]()
var currentDiceArray:[[String:AnyObject]] = [[:]]
var currentRoll: [Int] = []

Answer 1

I'd recommend ditching the dictionaries unless you really need them, as you're really just dealing with properties of a struct/class. I'm going to assume you're using the currentDieFaceArray method so that you can make this generic for non-linear dice faces of other dimensions (e.g. you can have a four-sided dice with the face values [1, 4, 6, 8]). If this isn't the case, you can simplify further I'm sure with a simple array of counts. But here's an example with your method (probably has other possible optimisations).
class DieFaceDefn
{
let faceValue : Int
var countThisRoll : Int = 0
init(faceValue: Int)
{
self.faceValue = faceValue
}
}
var diceFaces: [DieFaceDefn] = []
let numberOfCurrentDice = 5
func setupDice()
{
diceFaces.append(DieFaceDefn(faceValue: 1))
diceFaces.append(DieFaceDefn(faceValue: 2))
...
}
var currentRoll: [Int] = []
func rollDice()
{
currentRoll.removeAll()
diceFaces.forEach { $0.countThisRoll = 0 }
for _ in 0..<numberOfCurrentDice
{
let num: UInt32 = arc4random_uniform(UInt32(diceFaces.count))
let currentDieData = diceFaces[Int(num)]
let faceValue = currentDieData.faceValue
currentRoll.append(faceValue)
currentDieData.countThisRoll += 1
}
print(currentRoll)
diceFaces.forEach { print("\($0.faceValue): \($0.countThisRoll)") }
}