[JS][6kyu] Hangman game

codewars/6kyu/hangman-game/koronya.js

@@ -0,0 +1,79 @@
+// [JS][6kyu] Hangman game
+// hangman-game
+// https://www.codewars.com/kata/56832fb41676465e82000030/train/javascript
+
+class Hangman {
+  constructor(word) {
+    this.word = word
+    this.remainCount = 6
+    this.guessedLetters = new Set()
+    this.findCount = 0
+    this.validLetters = new Set()
+    this.invalidLetters = new Set()
+    this.isGameEnded = false
+  }
+
+  getStatus() {
+    if (this.findCount === this.word.length) {
+      this.isGameEnded = true
+      return `You found the word! (${this.word})`
+    }
+    const answerText = this.word
+      .split('')
+      .map((letter) => (this.validLetters.has(letter) ? letter : '_'))
+      .join(' ')
+    const wrongText = Array.from(this.invalidLetters).join('')
+    return `${answerText}${wrongText.length > 0 ? ' # ' + wrongText : ''}`
+  }
+
+  isCorrectGuess(letter) {
+    return this.word.includes(letter)
+  }
+
+  guess(letter) {
+    if (this.isGameEnded) {
+      return 'The game has ended.'
+    }
+    if (this.guessedLetters.has(letter)) {
+      return this.getStatus()
+    }
+
+    this.guessedLetters.add(letter)
+    if (this.isCorrectGuess(letter)) {
+      this.validLetters.add(letter)
+      const countInWord = this.word.split('').filter((l) => l === letter).length
+      this.findCount += countInWord
+      return this.getStatus()
+    } else {
+      this.invalidLetters.add(letter)
+      if (this.remainCount === 0) {
+        this.isGameEnded = true
+        return `You got hung! The word was ${this.word}.`
+      }
+      this.remainCount -= 1
+      return this.getStatus()
+    }
+  }
+}
+
+const hangman = new Hangman('codet')
+hangman.guess('w')
+hangman.guess('a')
+hangman.guess('r')
+hangman.guess('s')
+hangman.guess('e')
+hangman.guess('d')
+hangman.guess('o')
+hangman.guess('c')
+hangman.guess('x')
+hangman.guess('y')
+hangman.guess('z')
+
+// const hangman = new Hangman('wars')
+// hangman.guess('w')
+// hangman.guess('u')
+// hangman.guess('s')
+// hangman.guess('a')
+// hangman.guess('r')
+// hangman.guess('g')
+// hangman.guess('a')