441 lines
12 KiB
C#
441 lines
12 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Xml;
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using TMPro;
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using Unity.VisualScripting;
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using UnityEngine;
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using UnityEngine.UI;
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using static System.Collections.Specialized.BitVector32;
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public class QuizSystem : MonoBehaviour
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{
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public static QuizSystem Instance;
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public string FileName;
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// UI元素
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public TextMeshProUGUI questionText; // 显示问题文本
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public ToggleGroup optionsGroup; // 选项组，用于单选题
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public List<Toggle> optionToggles; // 选项切换按钮列表
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public TextMeshProUGUI progressText; // 显示答题进度
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public Button submitButton; // 提交按钮
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//上一题下一题页面
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public GameObject CtrlPage;
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public Button nextButton; // 下一题按钮
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//public Button previousButton; // 上一题按钮
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public TextMeshProUGUI hintText; // 显示提示文本
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//结果页面
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public GameObject ResultPage;//结果页面
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public TextMeshProUGUI resultText; // 显示结果文本
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public Button MoreOnceBtn;//再来一次
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//public Button hintButton; // 提示按钮
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//public Slider timeSlider; // 时间滑动条
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//public TextMeshProUGUI timerText; // 倒计时文本
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// 问题列表和当前状态
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private List<Question> questions = new List<Question>(); // 问题列表
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private int currentQuestionIndex = 0; // 当前问题索引
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private List<HashSet<int>> userAnswers = new List<HashSet<int>>(); // 用户答案列表
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//private bool isSubmitted = false; // 是否已提交
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// 总体倒计时
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//private float totalTime = 1800f; // 总时间（秒）
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//private float remainingTime; // 剩余时间
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private void Awake()
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{
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Instance = this;
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}
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void Start()
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{
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// 加载问题
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LoadQuestions();
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ToStartQuestion();
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// 初始化倒计时
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//remainingTime = totalTime;
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//UpdateTimerUI();
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}
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public void ToStartQuestion()
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{
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//结果和控制页面消失
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ResultPage.SetActive(false);
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CtrlPage.SetActive(false);
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userAnswers.Clear();
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// 初始化用户答案列表
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for (int i = 0; i < questions.Count; i++)
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{
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userAnswers.Add(new HashSet<int>());
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}
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currentQuestionIndex = 0;
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// 显示第一个问题
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DisplayQuestion();
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}
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void Update()
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{
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//// 更新倒计时
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//if (remainingTime > 0)
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//{
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// remainingTime -= Time.deltaTime;
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// UpdateTimerUI();
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//}
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//else if (!isSubmitted)
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//{
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// // 时间到，自动提交
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// OnSubmitButtonClicked();
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//}
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}
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void LoadQuestions()
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{
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questions = XmlTextReaderTest();
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}
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void DisplayQuestion()
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{
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// 检查是否超出问题列表
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if (currentQuestionIndex >= questions.Count)
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{
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return;
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}
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// 获取当前问题
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Question question = questions[currentQuestionIndex];
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questionText.text = question.Text;
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progressText.text = $"答题进度: {GetAnsweredCount()+1} / {questions.Count}";
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// 显示选项
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for (int i = 0; i < optionToggles.Count; i++)
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{
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if (i < question.Options.Length && (!question.IsJudgment || i < 2))
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{
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optionToggles[i].gameObject.SetActive(true);
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var label = optionToggles[i].GetComponentInChildren<Text>();
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if (label != null)
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{
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string sign = "A:";
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switch (i)
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{
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case 0: sign = "A:"; break;
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case 1: sign = "B:"; break;
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case 2: sign = "C:"; break;
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case 3: sign = "D:"; break;
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}
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label.text = sign+question.Options[i];
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}
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optionToggles[i].isOn = userAnswers[currentQuestionIndex].Contains(i + 1);
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// 判断题或单选题使用 ToggleGroup
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optionToggles[i].group = (question.IsSingleChoice || question.IsJudgment) ? optionsGroup : null;
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}
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else
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{
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optionToggles[i].gameObject.SetActive(false);
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}
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}
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}
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//选择结束后确认该题结果
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public void OnSubmitButtonClicked()
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{
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// 提交答案
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SaveUserAnswers();
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//检查结果并显示
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CheckCurrentAnswer();
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}
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//保存用户答案
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void SaveUserAnswers()
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{
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// 保存用户选择的答案
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userAnswers[currentQuestionIndex].Clear();
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int index = 0;
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foreach (Toggle toggle in optionToggles)
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{
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if (toggle.isOn)
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{
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userAnswers[currentQuestionIndex].Add(index);
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}
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index++;
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}
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}
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//检查是否正确
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void CheckCurrentAnswer()
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{
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// 检查用户答案是否为正确答案的子集
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if (questions[currentQuestionIndex].CorrectAnswers.IsSubsetOf(userAnswers[currentQuestionIndex]))
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{
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OnHintViewShow("正确");
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}
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else
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{
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OnHintViewShow("错误");
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}
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}
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//显示正确还是错误
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public void OnHintViewShow(string result)
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{
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// 显示正确答案提示
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Question question = questions[currentQuestionIndex];
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string correctAnswerLetters = ConvertNumbersToLetters(question.CorrectAnswers);
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hintText.text = $"回答{result}，答案为: {correctAnswerLetters}";
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CtrlPage.SetActive(true);
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}
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//下一题
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public void OnNextButtonClicked()
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{
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// 切换到下一题
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if (currentQuestionIndex < questions.Count - 1)
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{
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//SaveUserAnswers();
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currentQuestionIndex++;
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DisplayQuestion();
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//hintText.gameObject.SetActive(false);
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}
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//计算结果并进入结果页面
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else
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{
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CheckAllAnswers();
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}
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//控制页面消失
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CtrlPage.SetActive(false);
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}
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//检查所有答案结果并显示结果页面
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void CheckAllAnswers()
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{
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// 检查所有答案并计算正确率
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int correctCount = 0;
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for (int i = 0; i < questions.Count; i++)
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{
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// 检查用户答案是否为正确答案的子集
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if (questions[i].CorrectAnswers.IsSubsetOf(userAnswers[i]))
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{
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correctCount++;
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}
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}
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resultText.text = $"正确率: {(float)correctCount / questions.Count * 100:F2}%";
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ResultPage.SetActive(true);
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}
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//再来一遍
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public void OnMoreDoOnce()
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{
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ToStartQuestion();
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}
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//上一题
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public void OnPreviousButtonClicked()
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{
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// 切换到上一题
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if (currentQuestionIndex > 0)
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{
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SaveUserAnswers();
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currentQuestionIndex--;
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DisplayQuestion();
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//isSubmitted = false; // 重置提交状态
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hintText.gameObject.SetActive(false);
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}
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}
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void UpdateTimerUI()
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{
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//// 更新滑动条和倒计时文本
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//if (!isSubmitted) // 仅在未提交时更新
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//{
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// timeSlider.value = remainingTime / totalTime;
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// timerText.text = $"剩余时间: {Mathf.Ceil(remainingTime)}秒";
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//}
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}
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//void LockSliderPosition()
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//{
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// // 禁用滑块交互
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// timeSlider.interactable = false;
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//}
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//void StopTimer()
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//{
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// // 停止倒计时并更新文本
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// timerText.text = $"本次用时：{totalTime - remainingTime:F0}s";
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// timeSlider.value = 0; // 停止滑动条
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//}
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int GetAnsweredCount()
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{
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// 获取已回答的问题数量
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int count = 0;
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foreach (var answer in userAnswers)
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{
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if (answer.Count > 0)
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{
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count++;
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}
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}
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return count;
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}
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string ConvertNumbersToLetters(HashSet<int> numbers)
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{
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// 将数字转换为字母
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StringBuilder letters = new StringBuilder();
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foreach (int number in numbers)
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{
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if (number >= 0 && number <= 3)
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{
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char letter = (char)('A' + number);
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letters.Append(letter);
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}
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}
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return letters.ToString();
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}
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private List<Question> XmlTextReaderTest()
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{
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List<Question> questions = new List<Question>();
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// 构建文件路径
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string filePath = Path.Combine(Application.streamingAssetsPath, FileName+".xml");
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if (!File.Exists(filePath))
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{
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Debug.LogError("Questions file not found at: " + filePath);
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return questions;
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}
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string textmsg = File.ReadAllText(filePath);
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XmlDocument xmlDocument = new XmlDocument();
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try
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{
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xmlDocument.LoadXml(textmsg);
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}
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catch (XmlException e) {
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Debug.LogError($"XML格式错误：{e.Message}");
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return questions;
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}
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XmlNode rootNode = xmlDocument.SelectSingleNode("root");
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if (rootNode == null)
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{
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Debug.LogError("XML中未找到<root>节点");
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return questions;
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}
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//遍历所有<question>子节点
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XmlNodeList questionNodes = rootNode.SelectNodes("question");
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if (questionNodes == null || questionNodes.Count == 0)
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{
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Debug.LogWarning("未找到任何<question>节点");
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return questions;
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}
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// 提取每个question的属性值
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foreach (XmlNode node in questionNodes)
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{
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Question question = new Question();
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// 读取id属性（转换为int）
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if (!TryGetIntAttribute(node, "id", out int id))
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{
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Debug.LogWarning("跳过无效的question节点（缺少id或格式错误）");
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continue;
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}
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// 读取quesTitle属性（字符串）
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if (!TryGetStringAttribute(node, "quesTitle", out string title))
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{
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Debug.LogWarning($"id为{id}的节点缺少quesTitle属性");
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continue;
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}
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string[] allMsg = title.Split('|');
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question.Text = allMsg[0];
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if (allMsg.Length > 1) {
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question.Options=new string[allMsg.Length-1];
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for (int i = 1;i<allMsg.Length;i++)
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{
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question.Options[i-1]=allMsg[i];
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}
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}
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else
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{
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question.Options=null;
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}
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// 读取answer属性（转换为string）
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if (!TryGetStringAttribute(node, "answer", out string answer))
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{
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Debug.LogWarning($"id为{id}的节点answer格式错误");
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continue;
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}
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question.CorrectAnswers = new HashSet<int>(Array.ConvertAll(answer.ToCharArray(), c => int.Parse(c.ToString())));
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// 读取type属性（转换为int）
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if (!TryGetIntAttribute(node, "type", out int type))
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{
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Debug.LogWarning($"id为{id}的节点type格式错误");
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continue;
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}
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question.IsSingleChoice = type == 1;
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question.IsJudgment = type == 0;// 判断题标识
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// 添加到列表
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questions.Add(question);
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}
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return questions;
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}
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// 辅助方法：获取节点的字符串属性
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private bool TryGetStringAttribute(XmlNode node, string attrName, out string value)
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{
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XmlAttribute attr = node.Attributes[attrName];
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if (attr != null)
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{
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value = attr.Value;
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return true;
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}
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value = null;
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return false;
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}
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// 辅助方法：获取节点的int属性（并验证格式）
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private bool TryGetIntAttribute(XmlNode node, string attrName, out int value)
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{
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if (TryGetStringAttribute(node, attrName, out string strValue))
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{
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return int.TryParse(strValue, out value);
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}
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value = 0;
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return false;
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}
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}
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public class Question
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{
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public string Text; // 问题文本
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public string[] Options; // 选项数组
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public bool IsSingleChoice; // 是否为单选题
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public HashSet<int> CorrectAnswers; // 正确答案集合
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public bool IsJudgment; // 是否为判断题
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} |