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495 lines
20 KiB
495 lines
20 KiB
2 months ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>随机点名系统</title>
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<link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/ionicons/4.5.6/css/ionicons.min.css'>
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<link rel="stylesheet" href="styles.css">
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<link rel="preconnect" href="https://fonts.googleapis.com">
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
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<link href="https://fonts.googleapis.com/css2?family=Long+Cang&display=swap" rel="stylesheet">
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<link href="https://fonts.googleapis.com/css2?family=Zhi+Mang+Xing&display=swap" rel="stylesheet">
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<link href="https://fonts.googleapis.com/css2?family=Ma+Shan+Zheng&display=swap" rel="stylesheet">
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</head>
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<body>
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<h1>随机点名系统</h1>
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<div id="message" style="display:none; position:fixed; top:20px; left:50%; transform:translateX(-50%); background-color:rgba(0, 0, 0, 0.5); color:white; padding:10px; border-radius:5px; white-space:nowrap;">
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</div>
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<div class="container">
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<div class="file-upload">
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<label class="file-label" for="fileInput" style="cursor: pointer;">
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<img src="file-icon.svg" alt="选择文件" style="width: 40px; height: 40px;" />
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<input type="file" id="fileInput" style="display: none;" onchange="updateFileName()" />
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</label>
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<span id="fileName">未选择文件</span>
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<button id="uploadButton" onclick="uploadFile()"style="background: none; border: none; padding: 0; cursor: pointer;">
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<img src="upload-icon.svg" alt="导入" style="width: 40px; height: 40px;" />
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</button>
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</div>
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<div class="button-row">
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<button id="drawButton" onclick="startDraw()" disabled>开始点名</button>
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</div>
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<div class="button-row">
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<button id="onClass" onclick="onClass()" style="width:20% ;">到场</button>
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</div>
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<div class="button-row">
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<button id="correctButton" onclick="repeatCorrectly()" disabled>准确重复问题</button>
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<button id="incorrectButton" onclick="repeatIncorrectly()" disabled>重复不准确</button>
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</div>
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<div class="rating">
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<input type="radio" name="rating" id="5" value="5" />
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<label for="5" data-value="5"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">5</span></label>
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<input type="radio" name="rating" id="4" value="4" />
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<label for="4" data-value="4"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">4</span></label>
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<input type="radio" name="rating" id="3" value="3" />
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<label for="3" data-value="3"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">3</span></label>
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<input type="radio" name="rating" id="2" value="2" />
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<label for="2" data-value="2"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">2</span></label>
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<input type="radio" name="rating" id="1" value="1" />
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<label for="1" data-value="1"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">1</span></label>
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</div>
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<!--<input type="text" id="manualPoints" placeholder="手动加减积分 (范围 0.5 到 3)" /> -->
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<div class="button-row">
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<!--<button id="manualButton" onclick="updatePoints()" disabled>更新积分</button> -->
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<button id="resetButton" onclick="resetAllPoints()">重置所有积分</button>
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</div>
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<div class="view-student-row">
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<button onclick="viewStudentList()">查看学生名单</button>
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</div>
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</div>
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<div id="scrollingNames"></div>
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<div id="selectedStudent"></div>
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<canvas id="particleCanvas"></canvas>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.17.1/xlsx.full.min.js"></script>
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<script>
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let students = JSON.parse(localStorage.getItem('students')) || [];
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let selectedStudent = null;
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let intervalId;
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let lock = false;//自动加分锁
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let lock1 = false;//手动加分锁
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let onClassAdded = false;
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let autoPointsAdded = false;
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let manualPointsUsed = false;
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let studentDrawn = false;
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let starLock = false;
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const stars = document.querySelectorAll('.rating label');
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stars.forEach(star => {
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star.addEventListener('mouseenter', () => {
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const number = star.querySelector('.star-number');
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number.classList.remove('hidden');
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});
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star.addEventListener('mouseleave', () => {
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const number = star.querySelector('.star-number');
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number.classList.add('hidden');
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});
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});
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const particleCanvas = document.getElementById('particleCanvas');
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const particleCtx = particleCanvas.getContext('2d');
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particleCanvas.width = window.innerWidth;
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particleCanvas.height = window.innerHeight;
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let particles = [];
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function createParticlesFromText(a, b) {
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// 清空画布
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particleCtx.clearRect(0, 0, particleCanvas.width, particleCanvas.height);
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// 设置字体
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particleCtx.font = '150px "Long Cang"';
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particleCtx.fillStyle = '#003366';
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// 绘制第一行文字
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const x1 = particleCanvas.width / 2 - particleCtx.measureText(selectedStudent.name).width / 2;
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const y1 = particleCanvas.height / 2 - 50; // 向上移动50像素
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particleCtx.fillText(selectedStudent.name, x1, y1);
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// 绘制第二行文字
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const x2 = particleCanvas.width / 2 - particleCtx.measureText(selectedStudent.id).width / 2;
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const y2 = particleCanvas.height / 2 + 70; // 向下移动70像素
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particleCtx.fillText(selectedStudent.id, x2, y2);
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// 获取整个画布的像素数据
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const imageData = particleCtx.getImageData(0, 0, particleCanvas.width, particleCanvas.height);
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// 清空粒子数组
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particles = [];
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// 创建粒子
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for (let y = 0; y < imageData.height; y += 2) {
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for (let x = 0; x < imageData.width; x += 2) {
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const index = (y * imageData.width + x) * 4;
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const alpha = imageData.data[index + 3];
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if (alpha > 128) { // 只选择不透明的像素
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let particle = new Particle(Math.random() * particleCanvas.width, Math.random() * particleCanvas.height);
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particle.targetX = x;
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particle.targetY = y;
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particles.push(particle);
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}
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}
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}
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// 启动粒子动画
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animateParticles();
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}
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function Particle(x, y) {
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this.x = x;
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this.y = y;
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this.size = 1;
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this.baseX = this.x;
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this.baseY = this.y;
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this.density = Math.random() * 30 + 1;
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}
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Particle.prototype.draw = function () {
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particleCtx.fillStyle = 'black';
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particleCtx.beginPath();
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particleCtx.arc(this.x, this.y, this.size, 0, Math.PI * 2); // 绘制粒子
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particleCtx.closePath();
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particleCtx.fill();
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};
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Particle.prototype.update = function () {
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let dx = this.targetX - this.x;
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let dy = this.targetY - this.y;
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let distance = Math.sqrt(dx * dx + dy * dy);
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let speed = distance / 20; // 移动速度，离目标越远速度越快
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this.x += dx / distance * speed;
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this.y += dy / distance * speed;
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// 减少抖动，当粒子非常接近目标位置时停止移动
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if (distance < 1) {
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this.x = this.targetX;
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this.y = this.targetY;
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}
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};
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function animateParticles() {
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particleCtx.clearRect(0, 0, particleCanvas.width, particleCanvas.height); // 清除上一帧的粒子
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particles.forEach(particle => {
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particle.update(); // 更新每个粒子的状态
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particle.draw(); // 绘制每个粒子
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});
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requestAnimationFrame(animateParticles); // 循环动画
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}
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function showMessage(text) {
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const messageDiv = document.getElementById("message");
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messageDiv.textContent = text;
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messageDiv.style.display = "block"; // 显示消息
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setTimeout(() => {
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messageDiv.style.display = "none"; // 1秒后隐藏消息
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}, 1000);
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}
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window.onload = function() {
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const storedStudent = localStorage.getItem('selectedStudent');//获取selectedStudent
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if (storedStudent) {
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selectedStudent = JSON.parse(storedStudent);
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document.getElementById('selectedStudent').innerText = `${selectedStudent.name} (学号: ${selectedStudent.id})`;
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autoPointsAdded = localStorage.getItem('autoPointsAdded') === 'true';
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manualPointsUsed = localStorage.getItem('manualPointsUsed') === 'true';
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starLock = localStorage.getItem('starLock') === 'true';
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onClassAdded = localStorage.getItem('onClassAdded') === 'true';
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}
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toggleButtons();//按键锁
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};
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function uploadFile() {
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const input = document.getElementById('fileInput');
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const file = input.files[0];
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if (!file) {
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showMessage("请选择一个文件！");
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return;
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}
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const reader = new FileReader();
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reader.onload = function(e) {
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const data = new Uint8Array(e.target.result);
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const workbook = XLSX.read(data, { type: 'array' });
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const firstSheet = workbook.Sheets[workbook.SheetNames[0]];
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// 读取所有行（包括空行）
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let allStudents = XLSX.utils.sheet_to_json(firstSheet, { header: 1 });
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// 如果没有数据，则提示用户
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if (allStudents.length < 2) {
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showMessage("工作表中没有有效数据！");
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return;
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}
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// 去掉表头
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allStudents = allStudents.slice(1);
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// 过滤有效行，确保每行的有效性
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students = allStudents
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.filter(row => row[0] !== undefined && row[0] !== null && row[0] !== '') // 确保 ID 不为空
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.map(row => ({
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id: row[0],
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name: row[1], // 假设第二列为名字
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points: 0 // 默认分数为 0
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}));
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// 如果没有有效的学生数据，则提示
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if (students.length === 0) {
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showMessage("工作表中没有有效学生数据！");
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return;
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}
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localStorage.setItem('students', JSON.stringify(students));
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showMessage("学生名单导入成功！");
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toggleButtons();
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};
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reader.readAsArrayBuffer(file);
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}
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function updateFileName() {
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const input = document.getElementById('fileInput');
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const fileName = document.getElementById('fileName');
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if (input.files.length > 0) {
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fileName.innerText = input.files[0].name; // 显示选择的文件名
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} else {
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fileName.innerText = '未选择文件'; // 显示未选择文件的提示
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}
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}
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function toggleButtons() {
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const buttons = ['drawButton', 'correctButton', 'incorrectButton', 'manualButton'];
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const enable = students.length > 0;
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buttons.forEach(buttonId => {
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document.getElementById(buttonId).disabled = !enable;
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});
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}
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function viewStudentList() {
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window.location.href = 'studentList.html';
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}
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function startDraw() {
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if (students.length === 0) {
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showMessage("请先导入学生名单！");
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return;
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}
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// 隐藏页面元素
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document.querySelector('.container').classList.add('hidden');
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// 隐藏“开始点名”按钮
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//document.getElementById('drawButton').style.display = 'none';
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lock = false;
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lock1 = false;
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onClassAdded = false;
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autoPointsAdded = false;
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manualPointsUsed = false;
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starLock = false;
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const totalPoints = students.reduce((sum, student) => sum + (student.points > 10 ? 1 / student.points : 10 - student.points), 0);
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const randomValue = Math.random() * totalPoints;
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let cumulativePoints = 0;
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for (const student of students) {
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cumulativePoints += Math.max(1, 10 - student.points);
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if (randomValue < cumulativePoints) {
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selectedStudent = student;
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break;
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}
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}
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setTimeout(scrollStudents, 350);
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}
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function onClass() {
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if(!onClassAdded && selectedStudent) {
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selectedStudent.points += 1;
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synPoints();
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onClassAdded = true;
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updateLocalStorage();
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showMessage(`${selectedStudent.name}到场，加分 1。`);
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} else if (!selectedStudent) {
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showMessage("请先抽取一位学生");
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} else {
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showMessage("到场已加分");
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}
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}
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document.addEventListener('click', async function(event) {
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const drawButton = document.getElementById('drawButton');
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const scrollingNamesDiv = document.getElementById('scrollingNames');
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const selectedStudentDiv = document.getElementById('selectedStudent');
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if(!clickEnabled){
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return;
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}
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if (!drawButton.contains(event.target) &&
|
||
|
|
!scrollingNamesDiv.contains(event.target) &&
|
||
|
|
!selectedStudentDiv.contains(event.target)) {
|
||
|
|
|
||
|
|
// 清空显示的被点到学生信息
|
||
|
|
scrollingNamesDiv.innerHTML = '';
|
||
|
|
|
||
|
|
particles = [];
|
||
|
|
particleCtx.clearRect(0, 0, particleCanvas.width, particleCanvas.height);
|
||
|
|
|
||
|
|
// 恢复页面元素
|
||
|
|
document.querySelector('.container').classList.remove('hidden');
|
||
|
|
selectedStudentDiv.style.display = 'block'; // 显示
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
function synPoints() {
|
||
|
|
// 更新 students 数组中的相应学生积分
|
||
|
|
const studentIndex = students.findIndex(s => s.id === selectedStudent.id);
|
||
|
|
if (studentIndex !== -1) {
|
||
|
|
students[studentIndex].points = selectedStudent.points; // 确保 students 数组中的积分也更新
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function repeatCorrectly() {
|
||
|
|
if (!lock && selectedStudent && !autoPointsAdded) {
|
||
|
|
selectedStudent.points += 0.5;
|
||
|
|
synPoints();
|
||
|
|
autoPointsAdded = true;
|
||
|
|
lock = true;
|
||
|
|
updateLocalStorage();
|
||
|
|
showMessage(`已为 ${selectedStudent.name}加分 0.5。`);
|
||
|
|
} else if (!selectedStudent) {
|
||
|
|
showMessage("请先抽取一位学生");
|
||
|
|
} else {
|
||
|
|
showMessage("已为该学生加过分");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function repeatIncorrectly() {
|
||
|
|
if (!lock && selectedStudent && !autoPointsAdded) {
|
||
|
|
selectedStudent.points -= 1;
|
||
|
|
synPoints();
|
||
|
|
autoPointsAdded = true;
|
||
|
|
lock = true;
|
||
|
|
updateLocalStorage();
|
||
|
|
showMessage(`已为 ${selectedStudent.name} 扣分 1。`);
|
||
|
|
} else if (!selectedStudent) {
|
||
|
|
showMessage("请先抽取一位学生");
|
||
|
|
} else {
|
||
|
|
showMessage("已为该学生加过分");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
let clickEnabled = true; // 用于跟踪点击是否被允许
|
||
|
|
|
||
|
|
function scrollStudents() {
|
||
|
|
document.getElementById('selectedStudent').innerText = '';
|
||
|
|
const scrollingNamesDiv = document.getElementById('scrollingNames');
|
||
|
|
scrollingNamesDiv.innerHTML = '';
|
||
|
|
let index = 0;
|
||
|
|
|
||
|
|
clickEnabled = false; // 禁用点击
|
||
|
|
|
||
|
|
return new Promise((resolve) => {
|
||
|
|
intervalId = setInterval(() => {
|
||
|
|
scrollingNamesDiv.innerText = students[index].name;
|
||
|
|
index = (index + 1) % students.length;
|
||
|
|
}, 100);
|
||
|
|
|
||
|
|
setTimeout(() => {
|
||
|
|
clearInterval(intervalId);
|
||
|
|
scrollingNamesDiv.innerHTML = '';
|
||
|
|
if (selectedStudent) {
|
||
|
|
document.getElementById('selectedStudent').innerText = `${selectedStudent.name} (学号: ${selectedStudent.id})`;
|
||
|
|
document.getElementById('selectedStudent').style.display = 'none'; // 隐藏
|
||
|
|
createParticlesFromText(`${selectedStudent.name} (学号:${selectedStudent.id})`);
|
||
|
|
updateLocalStorage();
|
||
|
|
}
|
||
|
|
resolve(); // 完成滚动时解析Promise
|
||
|
|
clickEnabled = true; // 恢复点击
|
||
|
|
}, 3000);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function updateLocalStorage() {
|
||
|
|
localStorage.setItem('selectedStudent', JSON.stringify(selectedStudent));
|
||
|
|
localStorage.setItem('students', JSON.stringify(students));
|
||
|
|
localStorage.setItem('autoPointsAdded', autoPointsAdded);
|
||
|
|
localStorage.setItem('manualPointsUsed', manualPointsUsed);
|
||
|
|
localStorage.setItem('starLock',starLock);
|
||
|
|
localStorage.setItem('onClassAdded',onClassAdded);
|
||
|
|
}
|
||
|
|
|
||
|
|
// 初始化星级点击事件监听器
|
||
|
|
document.querySelectorAll('.rating input').forEach(star => {
|
||
|
|
star.addEventListener('change', function() {
|
||
|
|
if (!starLock) { // 检查星星是否已经被点击过
|
||
|
|
updatePoints(this.value);
|
||
|
|
} else {
|
||
|
|
showMessage("每次点名只能点击一次星星进行加分。");
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
// 根据选中的星级为学生加分
|
||
|
|
function updatePoints(points) {
|
||
|
|
points = parseInt(points); // 将点击的星星值转换为整数
|
||
|
|
if (selectedStudent) {
|
||
|
|
if (!starLock) { // 检查星星是否已经被点击过
|
||
|
|
selectedStudent.points += points; // 根据星星值加分
|
||
|
|
synPoints();
|
||
|
|
showMessage(`已为 ${selectedStudent.name} 加分 ${points}。`);
|
||
|
|
starLock = true; // 点击后锁定星星
|
||
|
|
updateLocalStorage();
|
||
|
|
} else {
|
||
|
|
showMessage("每次点名只能点击一次星星进行加分。");
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
showMessage("请先点名一个学生。");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// 禁用所有星星选择
|
||
|
|
function disableStars() {
|
||
|
|
document.querySelectorAll('.rating input').forEach(star => {
|
||
|
|
star.disabled = true;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
// 启用所有星星选择
|
||
|
|
function enableStars() {
|
||
|
|
document.querySelectorAll('.rating input').forEach(star => {
|
||
|
|
star.disabled = false;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function resetAllPoints() {
|
||
|
|
students.forEach(student => student.points = 0);
|
||
|
|
localStorage.setItem('students', JSON.stringify(students));
|
||
|
|
localStorage.removeItem('selectedStudent');
|
||
|
|
selectedStudent = null;
|
||
|
|
document.getElementById('selectedStudent').innerText = '';
|
||
|
|
showMessage("所有积分已重置！");
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
</body>
|
||
|
|
</html>
|