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1 //
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2 // GuessTheFlag.swift
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3 // GeoQuiz
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4 //
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5 // Created by Dennis Concepción Martín on 20/9/22.
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6 //
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7
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8 import Foundation
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9
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10 class GuessTheFlag: Game, ObservableObject {
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11 let countries: [String: String]
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12 var countriesAsked = [String: String]()
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13
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14 @Published var userScore = 0
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15 @Published var userLives = 3
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16 @Published var questionCounter = 0
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17 @Published var alertTitle = ""
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18 @Published var alertMessage = ""
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19 @Published var showingBuyLivesView = false
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20 @Published var showingNoLivesAlert = false
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21 @Published var showingWrongAnswerAlert = false
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22 @Published var showingEndGameAlert = false
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23
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24 @Published var userChoices = [String: String]()
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25 @Published var countryNameAsked = ""
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26
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27 init() {
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28 let flags: CountryFlags = load("CountryFlags.json")
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29 self.countries = flags.countries
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30 askQuestion()
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31 }
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32
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33 func askQuestion() {
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34 guard questionCounter < countries.count else {
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35 self.alertTitle = "Amazing!"
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36 self.alertMessage = "You've completed the game."
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37 self.showingEndGameAlert = true
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38
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39 return
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40 }
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41
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42 var userChoices = [String: String]()
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43
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44 while userChoices.count < 2 {
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45 if let country = countries.randomElement() {
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46 userChoices[country.key] = country.value
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47 } else {
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48 fatalError("Couldn't get a random country")
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49 }
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50 }
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51
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52 let countryAsked = countries.first(where: {
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53 !userChoices.keys.contains($0.key) &&
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54 !countriesAsked.keys.contains($0.key)
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55 })
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56
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57 if let countryAsked = countryAsked {
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58 userChoices[countryAsked.key] = countryAsked.value
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59 self.countriesAsked[countryAsked.key] = countryAsked.value
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60 self.countryNameAsked = countryAsked.key
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61 } else {
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62 fatalError("Couldn't get countryAsked")
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63 }
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64
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65 self.userChoices = userChoices
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66 self.questionCounter += 1
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67 }
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68
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69 func answered(userChoice userFlagSymbolGuess: String) {
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70 guard let correctFlagSymbolAnswer = countries[countryNameAsked] else {
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71 fatalError("Couln't find \(countryNameAsked) in countries dictionary")
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72 }
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73
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74 guard userLives > 0 else {
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75 self.alertTitle = "Not enough lives!"
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76 self.alertMessage = "Please buy more lives to keep playing"
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77 self.showingNoLivesAlert = true
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78
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79 return
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80 }
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81
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82 if correctFlagSymbolAnswer == userFlagSymbolGuess {
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83 hapticSuccess()
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84 self.userScore += 1
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85 askQuestion()
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86 } else {
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87 hapticError()
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88 self.userLives -= 1
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89 self.alertTitle = "Wrong!"
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90 self.alertMessage = "That's not the flag of \(countryNameAsked). You have \(userLives) lives left"
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91 self.showingWrongAnswerAlert = true
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92 }
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93 }
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94 }
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