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1 //
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2 // GuessTheCapital.swift
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3 // GeoQuiz
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4 //
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5 // Created by Dennis Concepción Martín on 18/9/22.
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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 GuessTheCapital: Game, ObservableObject {
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11
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12 struct Country: Hashable {
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13 let capitalName: String
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14 let flagSymbol: String
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15 }
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16
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17 let countries: [String: Country]
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18 var countriesAsked = [String: Country]()
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19
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20 @Published var userScore = 0
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21 @Published var userLives = 3
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22 @Published var questionCounter = 0
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23 @Published var alertTitle = ""
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24 @Published var alertMessage = ""
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25 @Published var showingBuyLivesView = false
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26 @Published var showingNoLivesAlert = false
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27 @Published var showingWrongAnswerAlert = false
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28 @Published var showingEndGameAlert = false
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29
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30 @Published var userChoices = [String: Country]()
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31 @Published var countryNameAsked = ""
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32
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33 init() {
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34 let flags: CountryFlags = load("CountryFlags.json")
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35 let capitals: CountryCapitals = load("CountryCapitals.json")
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36
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37 var countries = [String: Country]()
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38
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39 for country in capitals.countries {
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40 let countryName = country.key
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41 let capitalName = country.value
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42
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43 if let flagSymbol = flags.countries[countryName] {
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44 countries[country.key] = Country(capitalName: capitalName, flagSymbol: flagSymbol)
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45 } else {
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46 fatalError()
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47 }
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48 }
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49
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50 self.countries = countries
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51 askQuestion()
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52 }
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53
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54 func askQuestion() {
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55 guard questionCounter < countries.count else {
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56 self.alertTitle = "Amazing!"
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57 self.alertMessage = "You've completed the game."
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58 self.showingEndGameAlert = true
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59
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60 return
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61 }
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62
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63 var userChoices = [String: Country]()
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64
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65 while userChoices.count < 2 {
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66 if let country = countries.randomElement() {
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67 userChoices[country.key] = country.value
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68 } else {
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69 fatalError("Couldn't get a random country")
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70 }
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71 }
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72
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73 let countryAsked = countries.first(where: {
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74 !userChoices.keys.contains($0.key) &&
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75 !countriesAsked.keys.contains($0.key)
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76 })
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77
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78 if let countryAsked = countryAsked {
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79 userChoices[countryAsked.key] = countryAsked.value
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80 self.countriesAsked[countryAsked.key] = countryAsked.value
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81 self.countryNameAsked = countryAsked.key
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82 } else {
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83 fatalError("Couldn't get countryAsked")
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84 }
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85
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86 self.userChoices = userChoices
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87 self.questionCounter += 1
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88 }
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89
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90 func answered(userChoice userCapitalNameGuess: String) {
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91 guard let correctCountry = countries[countryNameAsked] else {
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92 fatalError("Couln't find \(countryNameAsked) in countries dictionary")
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93 }
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94
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95 guard userLives > 0 else {
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96 self.alertTitle = "Not enough lives!"
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97 self.alertMessage = "Please buy more lives to keep playing"
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98 self.showingNoLivesAlert = true
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99
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100 return
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101 }
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102
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103 if correctCountry.capitalName == userCapitalNameGuess {
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104 hapticSuccess()
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105 self.userScore += 1
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106 askQuestion()
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107 } else {
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108 hapticError()
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109 self.userLives -= 1
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110 self.alertTitle = "Wrong!"
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111 self.alertMessage = "The capital of \(countryNameAsked) is \(correctCountry.capitalName). You have \(userLives) lives left"
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112 self.showingWrongAnswerAlert = true
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113 }
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114 }
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115 }
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