16. 무작위 나열

배열에 저장된 낱말들을 섞어서 무작위로 나열

 

page - Game - <CombineGame.js>

※sort(): 배열에 요소를 유니코드 값에 따라서 적절하게 나열하는 메서드

 - Math.random() - 0.5의 값이 양수이면 오름차순으로, 음수이면 내림차순으로 정렬

 -0.1에 가까울 시 '사과(ㅅㅏㄱ ㅘ)로, 0.9에 가까울 시 '사과(ㅘ ㄱㅏㅅ)로 정렬

 

import axios from "axios";
import React, { useEffect, useState } from "react";
import "../../css/game.css";
import Canvas from "../../component/Canvas";
import Typing from "../../component/Typing";

function CombineGame() {
  const CHO = ['ㄱ', 'ㄲ', 'ㄴ', 'ㄷ', 'ㄸ', 'ㄹ', 'ㅁ',   
               'ㅂ', 'ㅃ', 'ㅅ', 'ㅆ', 'ㅇ', 'ㅈ', 'ㅉ',
               'ㅊ', 'ㅋ', 'ㅌ', 'ㅍ', 'ㅎ'];
  const JUNG = ['ㅏ', 'ㅐ', 'ㅑ', 'ㅒ', 'ㅓ', 'ㅔ', 'ㅕ',  
                'ㅖ', 'ㅗ', 'ㅘ', 'ㅙ', 'ㅚ', 'ㅛ', 'ㅜ',
                'ㅝ', 'ㅞ', 'ㅟ', 'ㅠ', 'ㅡ', 'ㅢ', 'ㅣ'];
  const JONG = ['', 'ㄱ', 'ㄲ', 'ㄳ', 'ㄴ', 'ㄵ', 'ㄶ',    
                'ㄷ', 'ㄹ', 'ㄺ', 'ㄻ', 'ㄼ', 'ㄽ', 'ㄾ',
                'ㄿ', 'ㅀ', 'ㅁ', 'ㅂ', 'ㅄ', 'ㅅ', 'ㅆ',
                'ㅇ', 'ㅈ', 'ㅊ', 'ㅋ', 'ㅌ', 'ㅍ', 'ㅎ'];

  const [quiz, setQuiz] = useState("");
  const [count, setCount] = useState(1);

  const [gameOver, setGameOver] = useState(false);
  const [checkQuiz, setCheckQuiz] = useState(false);
  const [moreChance, setMoreChance] = useState(0);

  const [answerObj, setAnswerObj] = useState(false);
  const [answerObjName, setAnswerObjName] = useState("타이핑");
  const [answerObjButton, setAnswerObjButton] = useState(false);

  const [charArray, setCharArray] = useState([]);

  const separateText = () => {
    const result = [];
    for (let char of quiz) {
      const unicode = char.charCodeAt(0) - 44032;
      console.log(unicode);

      const choIndex = parseInt(unicode / 588);
      const jungIndex = parseInt((unicode - choIndex * 588) / 28);
      const jongIndex = parseInt(unicode % 28);

      const choChar = CHO[choIndex];
      const jungChar = JUNG[jungIndex];
      const jongChar = JONG[jongIndex];

      result.push(choChar, jungChar, jongChar);
    }
    return result;
  };

  const resetButton = () => {
    window.location.reload();
  };

  const changeAnswerObj = () => {
    setAnswerObj((answerObj) => !answerObj);
    if (answerObjName === "타이핑") {
      setAnswerObjName("캔버스");
    } else {
      setAnswerObjName("타이핑");
    }
  };

  const checkAnswer = (text) => {
    if (text === quiz) {
      alert("정답입니다.");
      setCheckQuiz(true);
      setAnswerObjButton(true);
    } else {
      if (moreChance === 0) {
        alert("오답입니다. 한 번 더 시도해보세요.");
        setMoreChance((moreChance) => moreChance + 1);
      } else if (moreChance === 1) {
        alert("오답입니다. 다음 라운드로 넘어갑니다.");
        setMoreChance(0);
        setCheckQuiz(true);
        setAnswerObjButton(true);
      }
    }
  };

  const fetchData = () => {
    axios.get("http://localhost:5000/image").then((res) => {
      if (res.data.game && res.data.game.length > 0) {
        setQuiz(res.data.game[0].title);
        setCount(res.data.count);
        if (count >= 5) {
          setGameOver(true);
          alert(res.data.message);
        }
      } else {
        setGameOver(true);
        alert(res.data.message);
      }
    });
  };

  useEffect(() => {
    fetchData();
    //eslint-disable-next-line react-hooks/exhaustive-deps
  }, []);

  useEffect(() => {
    //result 배열에 값을 섞어서 무작위로 나열
    setCharArray(separateText().sort(() => Math.random() - 0.5));
    //eslint-disable-next-line react-hooks/exhaustive-deps
  }, [quiz]);

  return (
    <div className="combineGameContainer">
      <div className="combineDiv">
        {gameOver ? (
          <div>
            <h1>Game Over</h1>
            <button onClick={resetButton}>다시하기</button>
          </div>
        ) : (
          <div>
            <div className="roundDiv">
              <h2>Round: {count} / 5</h2>
              <button onClick={changeAnswerObj} disabled={answerObjButton}>
                {answerObjName}
              </button>
            </div>
            <div className="textQuizDiv">
              {charArray.map((char, index) => (
                <span key={index}>{char}</span>
              ))}
            </div>
          </div>
        )}
      </div>
      {!gameOver && (
        <div>
          {answerObj ? (
            <div>
              <Typing
                checkAnswer={checkAnswer}
                fetchData={fetchData}
                quiz={quiz}
                checkQuiz={checkQuiz}
                setCheckQuiz={setCheckQuiz}
                setAnswerObjButton={setAnswerObjButton}
              />
            </div>
          ) : (
            <div>
              <Canvas
                checkAnswer={checkAnswer}
                fetchData={fetchData}
                quiz={quiz}
                checkQuiz={checkQuiz}
                setCheckQuiz={setCheckQuiz}
                setAnswerObjButton={setAnswerObjButton}
              />
            </div>
          )}
        </div>
      )}
    </div>
  );
}

export default CombineGame;