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ContentView.swift
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ContentView.swift
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//
// ContentView.swift
// P05C WordScramble
//
// Created by Julian Moorhouse on 07/12/2020.
// Copyright © 2020 Mindwarp Consultancy Ltd. All rights reserved.
//
import SwiftUI
struct ContentView: View {
@State private var usedWords = [String]()
@State private var rootWord = ""
@State private var newWord = ""
@State private var score = 0
@State private var errorTitle = ""
@State private var errorMessage = ""
@State private var showingError = false
var body: some View {
NavigationView {
VStack {
TextField("Enter your word", text: $newWord, onCommit: addNewWord)
.textFieldStyle(RoundedBorderTextFieldStyle())
.autocapitalization(.none)
.padding()
List(usedWords, id: \.self) {
Image(systemName: "\($0.count).circle")
Text($0)
}
Text("Score: \(score)")
.font(.headline)
.padding()
}
.navigationBarTitle(rootWord)
.navigationBarItems(trailing: Button(action: startGame) {
Text("Restart")
})
.onAppear(perform: startGame)
.alert(isPresented: $showingError) {
Alert(title: Text(errorTitle), message: Text(errorMessage), dismissButton: .default(Text("OK")))
}
}
}
func addNewWord() {
let answer = newWord.lowercased().trimmingCharacters(in: .whitespacesAndNewlines)
guard answer.count > 0 else {
return
}
guard isOriginal(word: answer) else {
wordError(title: "Word used already", message: "Be more original")
return
}
guard isPossible(word: answer) else {
wordError(title: "Word not recognized", message: "You can't just make them up, you know!")
return
}
guard isReal(word: answer) else {
wordError(title: "Word not possible", message: "That isn't a real word")
return
}
guard isShort(word: answer) else {
wordError(title: "Word is short", message: "You word must be more than 3 characters!")
return
}
guard isSame(word: answer) else {
wordError(title: "Same word", message: "Your word is the same as the base word!")
return
}
usedWords.insert(answer, at: 0)
newWord = ""
score += 1
}
func startGame() {
if let startWordsURL = Bundle.main.url(forResource: "start", withExtension: "txt") {
if let startWords = try? String(contentsOf: startWordsURL) {
let allWords = startWords.components(separatedBy: "\n")
rootWord = allWords.randomElement() ?? "silkworm"
newWord = ""
score = 0
return
}
}
fatalError("Could not load start.txt from bundle.")
}
func isOriginal(word: String) -> Bool {
!usedWords.contains(word)
}
func isPossible(word: String) -> Bool {
var tempWord = rootWord.lowercased()
for letter in word {
if let pos = tempWord.firstIndex(of: letter) {
tempWord.remove(at: pos)
} else {
return false
}
}
return true
}
func isReal(word: String) -> Bool {
let checker = UITextChecker()
let range = NSRange(location: 0, length: word.utf16.count)
let misspelledRange = checker.rangeOfMisspelledWord(in: word, range: range, startingAt: 0, wrap: false, language: "en")
return misspelledRange.location == NSNotFound
}
func isShort(word: String) -> Bool {
if word.count <= 3 {
return false
}
return true
}
func isSame(word: String) -> Bool {
if word == rootWord {
return false
}
return true
}
func wordError(title: String, message: String) {
score -= 1
errorTitle = title
errorMessage = message
showingError = true
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}