NSMutableArray. Objective-c to swift code - objective-c

Question

I'm trying to convert this Objective-C code to swift, but can't seem to figure it out:
#implementation MultiplayerNetworking {
uint32_t _ourRandomNumber;
GameState _gameState;
BOOL _isPlayer1, _receivedAllRandomNumbers;
NSMutableArray *_orderOfPlayers;
#define playerIdKey #"PlayerId"
#define randomNumberKey #"randomNumber"
- (id)init
{
if (self = [super init]) {
_ourRandomNumber = arc4random();
_gameState = kGameStateWaitingForMatch;
_orderOfPlayers = [NSMutableArray array];
[_orderOfPlayers addObject:#{playerIdKey : [GKLocalPlayer localPlayer].playerID, randomNumberKey : #(_ourRandomNumber)}];
}
return self;
}
};
This is what I thought I would be, but I'm no sure at all, so I would appreciate som help here.
class MultiplayerNetworking {
var _ourRandomNumber = uint32_t()
var _gameState = GameState()
var isPlayer1 = false
var receivedAllRandomNumbers = false
var orderOfPlayers = [AnyObject]()
let playerIdKey = "PlayerId"
let randomNumberKey = "randomNumber"
override init() {
super.init()
self.ourRandomNumber = arc4random()
self.gameState = kGameStateWaitingForMatch
self.orderOfPlayers = [AnyObject]()
orderOfPlayers.append([playerIdKey: GKLocalPlayer.localPlayer().playerID, randomNumberKey: ourRandomNumber])
}
}
But it gives me some errors, a lot:
I used this converter: objectivec2swift.com since I have no experience with Objective-C

Answer 1

enum GameState {
case waitingForMatch
}
class MultiplayerNetworking {
var isPlayer1 = false
var receivedAllRandomNumbers = false
var orderOfPlayers = [AnyObject]()
private let playerIdKey = "PlayerId"
private let randomNumberKey = "randomNumber"
private var ourRandomNumber = arc4random()
private var gameState = GameState.waitingForMatch
init() {
orderOfPlayers.append([playerIdKey: GKLocalPlayer.localPlayer.playerID, randomNumberKey: ourRandomNumber] as AnyObject)
}
}
I am assuming that GameState is an enum, and have made the enum with just the one case I can see from your code. I am also guessing that variables starting with an underscore are supposed to be private instance variables of that class, so I have made them private here. Instead of initializing everything in init, I have made use of Swift to give all the properties initial values.

Answer 2

class MultiplayerNetworking {
var _ourRandomNumber = [__uint32_t]()
var _gameState = GameState()
var isPlayer1 = false
var receivedAllRandomNumbers = false
var orderOfPlayers = [AnyObject]()
let playerIdKey = "PlayerId"
let randomNumberKey = "randomNumber"
init() {
self.ourRandomNumber = arc4random()
self.gameState = kGameStateWaitingForMatch
self.orderOfPlayers = [AnyObject]()
orderOfPlayers.append([playerIdKey: GKLocalPlayer.localPlayer().playerID, randomNumberKey: ourRandomNumber])
}
}

Answer 3

Try using this code
class Player{
var playerIdKey : String?
var randomNumberKey : UInt32?
}
class MultiplayerNetworking {
var ourRandomNumber = UInt32()
var gameState = GameState()
var isPlayer1 = false
var receivedAllRandomNumbers = false
var orderOfPlayers = [Player]()
let playerIdKey = "PlayerId"
let randomNumberKey = "randomNumber"
override init() {
self.ourRandomNumber = arc4random()
self.gameState = kGameStateWaitingForMatch
let player = Player()
player.playerIdKey = GKLocalPlayer.localPlayer().playerID
player.randomNumberKey = ourRandomNumber
orderOfPlayers.append(player)
}
}
I would recommend that you create a separate class for player in the previous code the variable was an array type of AnyObject and a tipple was being appended to it so the compiler was complaining. So create a separate player class and set its properties and then append it to your array and your code should run fine.I also removed override keyword from init as there is no super class for this class.