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1 //
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2 // CityGame.swift
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3 // GeoQuiz
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4 //
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5 // Created by Dennis Concepción Martín on 29/9/22.
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6 //
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7
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8 import Foundation
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9 import AVFAudio
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10 import SwiftUI
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11
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12 class CityGame: Game, ObservableObject {
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13
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14 // Define type of generics
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15 typealias T = CityModel.CityData
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16
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17 var data: [String: T]
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18 var dataAsked = [String: T]()
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19
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20 // Data
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21 @Published var correctAnswer = (
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22 key: String(),
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23 value: T(country: String(), lat: Double(), lon: Double())
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24 )
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25
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26 // User
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27 @Published var userChoices = [String: T]()
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28 @Published var userScore = 0
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29 @Published var userLives = 3
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30 @Published var correctAnswers = [String: T]()
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31 @Published var wrongAnswers = [String: T]()
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32
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33 // Alerts
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34 @Published var alertTitle = String()
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35 @Published var alertMessage = String()
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36 @Published var showingGameOverAlert = false
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37 @Published var showingEndGameAlert = false
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38 @Published var showingWrongAnswerAlert = false
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39 @Published var showingExitGameAlert = false
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40
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41 // Animations
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42 @Published var scoreScaleAmount = 1.0
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43 @Published var livesScaleAmount = 1.0
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44
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45 // Sound effects
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46 @Published var player: AVAudioPlayer?
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47
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48 init() {
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49 let data: CityModel = load("cities.json")
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50 self.data = data.cities
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51 askQuestion {
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52 selector()
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53 }
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54 }
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55 }
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56
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57 extension CityGame {
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58 func selector() {
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59
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60 // Get random choices
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61 var userChoices = [String: T]()
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62
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63 while userChoices.count < 2 {
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64 if let choice = data.randomElement() {
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65 let userChoicesCountry = userChoices.map { $0.value.country }
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66
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67 if !userChoicesCountry.contains(choice.value.country) {
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68 userChoices[choice.key] = choice.value
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69 }
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70 } else {
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71 fatalError("Couldn't get a random value from data")
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72 }
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73 }
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74
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75 // Get question asked (correct answer)
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76 let userChoicesCountry = userChoices.map { $0.value.country }
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77 let correctAnswer = data.first(where: {
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78 !userChoices.keys.contains($0.key) && // Avoid duplicated cities
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79 !dataAsked.keys.contains($0.key) && // Avoid cities already asked
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80 !userChoicesCountry.contains($0.value.country) // Avoid duplicated country names in userChoices
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81 })
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82
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83 // Unwrap optional
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84 if let correctAnswer = correctAnswer {
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85 userChoices[correctAnswer.key] = correctAnswer.value
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86 dataAsked[correctAnswer.key] = correctAnswer.value
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87 self.correctAnswer = correctAnswer
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88 } else {
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89 fatalError("Couldn't unwrap optional value")
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90 }
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91
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92 self.userChoices = userChoices
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93 }
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94 }
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