Я новичок в SwiftUI и работаю над доской TicTacToe для своего класса. Я слежу за этой статьей на Medium, но столкнулся с проблемой.
Квадраты не активируются во время игры. Только когда игра закончена, вы можете увидеть, где были сделаны ходы. Я не понимаю, почему это происходит и как это исправить. Любая помощь будет принята с благодарностью!
import SwiftUI
import Combine
enum SquareStatus {
case empty
case visitor
case home
}
class Square: ObservableObject {
let didChange = PassthroughSubject<Void, Never>()
var status: SquareStatus {
didSet {
didChange.send(())
}
}
init(status: SquareStatus) {
self.status = status
}
}
class ModelBoard {
var squares = [Square]()
init() {
for _ in 0...8 {
squares.append(Square(status: .empty))
}
}
func resetGame() {
for i in 0...8 {
squares[i].status = .empty
}
}
var gameOver: (SquareStatus, Bool) {
get {
if thereIsAWinner != .empty {
return (thereIsAWinner, true)
} else {
for i in 0...8 {
if squares[i].status == .empty {
return (.empty, false)
}
}
return (.empty, true)
}
}
}
private var thereIsAWinner:SquareStatus {
get {
if let check = self.checkIndexes([0, 1, 2]) {
return check
} else if let check = self.checkIndexes([3, 4, 5]) {
return check
} else if let check = self.checkIndexes([6, 7, 8]) {
return check
} else if let check = self.checkIndexes([0, 3, 6]) {
return check
} else if let check = self.checkIndexes([1, 4, 7]) {
return check
} else if let check = self.checkIndexes([2, 5, 8]) {
return check
} else if let check = self.checkIndexes([0, 4, 8]) {
return check
} else if let check = self.checkIndexes([2, 4, 6]) {
return check
}
return .empty
}
}
private func checkIndexes(_ indexes: [Int]) -> SquareStatus? {
var homeCounter:Int = 0
var visitorCounter:Int = 0
for anIndex in indexes {
let aSquare = squares[anIndex]
if aSquare.status == .home {
homeCounter = homeCounter + 1
} else if aSquare.status == .visitor {
visitorCounter = visitorCounter + 1
}
}
if homeCounter == 3 {
return .home
} else if visitorCounter == 3 {
return .visitor
}
return nil
}
private func aiMove() {
var anIndex = Int.random(in: 0 ... 8)
while (makeMove(index: anIndex, player: .visitor) == false && gameOver.1 == false) {
anIndex = Int.random(in: 0 ... 8)
}
}
func makeMove(index: Int, player:SquareStatus) -> Bool {
if squares[index].status == .empty {
squares[index].status = player
if player == .home { aiMove() }
return true
}
return false
}
}
struct SquareView: View {
@ObservedObject var dataSource:Square
var action: () -> Void
var body: some View {
Button(action: {
self.action()
}) {
Text((dataSource.status != .empty) ?
(dataSource.status != .visitor) ? "X" : "0"
: " ")
.font(.largeTitle)
.foregroundColor(Color.black)
.frame(minWidth: 60, minHeight: 60)
.background(Color.gray)
.padding(EdgeInsets(top: 4, leading: 4, bottom: 4, trailing: 4))
}
}
}
struct ContentView : View {
private var checker = ModelBoard()
@State private var isGameOver = false
func buttonAction(_ index: Int) {
_ = self.checker.makeMove(index: index, player: .home)
self.isGameOver = self.checker.gameOver.1
}
var body: some View {
VStack {
HStack {
SquareView(dataSource: checker.squares[0]) { self.buttonAction(0) }
SquareView(dataSource: checker.squares[1]) { self.buttonAction(1) }
SquareView(dataSource: checker.squares[2]) { self.buttonAction(2) }
}
HStack {
SquareView(dataSource: checker.squares[3]) { self.buttonAction(3) }
SquareView(dataSource: checker.squares[4]) { self.buttonAction(4) }
SquareView(dataSource: checker.squares[5]) { self.buttonAction(5) }
}
HStack {
SquareView(dataSource: checker.squares[6]) { self.buttonAction(6) }
SquareView(dataSource: checker.squares[7]) { self.buttonAction(7) }
SquareView(dataSource: checker.squares[8]) { self.buttonAction(8) }
}
}
.alert(isPresented: $isGameOver) {
Alert(title: Text("Game Over"),
message: Text(self.checker.gameOver.0 != .empty ?
(self.checker.gameOver.0 == .home) ? "You Win!" : "iPhone Wins!"
: "Parity"), dismissButton: Alert.Button.destructive(Text("Ok"), action: {
self.checker.resetGame()
}) )
}
}
}
#if DEBUG
struct ContentView_Previews : PreviewProvider {
static var previews: some View {
ContentView()
}
}
#endif