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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>粒子效果调试页面</title>
<style>
body {
margin: 0;
padding: 20px;
background: #0f172a;
color: #fff;
font-family: monospace;
}
#particle-canvas {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: -1;
background: #0f172a;
}
.debug-panel {
position: fixed;
top: 20px;
right: 20px;
background: rgba(0,0,0,0.8);
padding: 20px;
border-radius: 8px;
z-index: 1000;
max-width: 400px;
}
.status {
margin: 10px 0;
padding: 8px;
border-radius: 4px;
}
.success { background: rgba(0,255,0,0.2); }
.error { background: rgba(255,0,0,0.2); }
.warning { background: rgba(255,255,0,0.2); }
button {
margin: 5px;
padding: 8px 16px;
background: #3b82f6;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
}
button:hover { background: #2563eb; }
</style>
</head>
<body>
<canvas id="particle-canvas"></canvas>
<div class="debug-panel">
<h3>🔍 粒子效果调试工具</h3>
<div id="status-log"></div>
<button onclick="testCanvas()">测试Canvas</button>
<button onclick="reloadParticles()">重新加载粒子</button>
<button onclick="checkErrors()">检查错误</button>
</div>
<script>
const statusLog = document.getElementById('status-log');
function log(message, type = 'info') {
const div = document.createElement('div');
div.className = `status ${type}`;
div.textContent = `[${new Date().toLocaleTimeString()}] ${message}`;
statusLog.appendChild(div);
console.log(`[Particle Debug] ${message}`);
// 只保留最后10条
while (statusLog.children.length > 10) {
statusLog.removeChild(statusLog.firstChild);
}
}
function testCanvas() {
log('开始Canvas测试...', 'info');
const canvas = document.getElementById('particle-canvas');
if (!canvas) {
log('❌ Canvas元素不存在！', 'error');
return;
}
log('✅ Canvas元素存在', 'success');
const ctx = canvas.getContext('2d');
if (!ctx) {
log('❌ 无法获取2D上下文', 'error');
return;
}
log('✅ 2D上下文可用', 'success');
log(`Canvas尺寸: ${canvas.width}x${canvas.height}`, 'info');
log(`Canvas显示样式: ${window.getComputedStyle(canvas).display}`, 'info');
log(`Canvas z-index: ${window.getComputedStyle(canvas).zIndex}`, 'info');
// 测试绘制
ctx.fillStyle = 'rgba(255, 0, 0, 0.5)';
ctx.fillRect(100, 100, 50, 50);
log('✅ 测试绘制完成（应该看到红色方块）', 'success');
setTimeout(() => {
ctx.clearRect(0, 0, canvas.width, canvas.height);
}, 2000);
}
function checkErrors() {
log('检查常见错误...', 'info');
// 检查Canvas
const canvas = document.getElementById('particle-canvas');
if (!canvas) {
log('❌ 错误：Canvas元素不存在', 'error');
} else {
log('✅ Canvas元素存在', 'success');
}
// 检查尺寸
if (canvas) {
const rect = canvas.getBoundingClientRect();
if (rect.width === 0 || rect.height === 0) {
log('⚠️ 警告：Canvas尺寸为0', 'warning');
} else {
log(`✅ Canvas尺寸正常: ${rect.width}x${rect.height}`, 'success');
}
}
// 检查JavaScript错误
window.onerror = function(msg, url, line) {
log(`❌ JavaScript错误: ${msg} (${url}:${line})`, 'error');
return false;
};
log('✅ 错误检查完成', 'success');
}
function reloadParticles() {
log('重新加载粒子效果...', 'info');
location.reload();
}
// 自动运行诊断
window.addEventListener('load', function() {
log('页面加载完成，开始诊断...', 'info');
setTimeout(() => {
checkErrors();
testCanvas();
}, 1000);
});
// 粒子效果代码（简化版，用于测试）
(function() {
const canvas = document.getElementById('particle-canvas');
if (!canvas) {
log('❌ Canvas未找到，无法初始化粒子', 'error');
return;
}
const ctx = canvas.getContext('2d');
if (!ctx) {
log('❌ 无法获取Canvas上下文', 'error');
return;
}
let width = window.innerWidth;
let height = window.innerHeight;
canvas.width = width;
canvas.height = height;
let particles = [];
const particleCount = 60;
class Particle {
constructor() {
this.x = Math.random() * width;
this.y = Math.random() * height;
this.vx = (Math.random() - 0.5) * 0.5;
this.vy = (Math.random() - 0.5) * 0.5;
this.size = Math.random() * 2 + 1;
this.color = `rgba(${Math.random() * 50 + 100}, ${Math.random() * 100 + 155}, 255, ${Math.random() * 0.5 + 0.2})`;
}
update() {
this.x += this.vx;
this.y += this.vy;
if (this.x < 0 || this.x > width) this.vx *= -1;
if (this.y < 0 || this.y > height) this.vy *= -1;
}
draw() {
ctx.beginPath();
ctx.arc(this.x, this.y, this.size, 0, Math.PI * 2);
ctx.fillStyle = this.color;
ctx.fill();
}
}
for (let i = 0; i < particleCount; i++) {
particles.push(new Particle());
}
function animate() {
ctx.clearRect(0, 0, width, height);
for (let i = 0; i < particles.length; i++) {
for (let j = i + 1; j < particles.length; j++) {
let dx = particles[i].x - particles[j].x;
let dy = particles[i].y - particles[j].y;
let distance = Math.sqrt(dx * dx + dy * dy);
if (distance < 150) {
ctx.beginPath();
ctx.strokeStyle = `rgba(100, 200, 255, ${1 - distance / 150})`;
ctx.lineWidth = 0.5;
ctx.moveTo(particles[i].x, particles[i].y);
ctx.lineTo(particles[j].x, particles[j].y);
ctx.stroke();
}
}
}
particles.forEach(p => {
p.update();
p.draw();
});
requestAnimationFrame(animate);
}
window.addEventListener('resize', () => {
width = window.innerWidth;
height = window.innerHeight;
canvas.width = width;
canvas.height = height;
});
animate();
log('✅ 粒子效果已启动', 'success');
})();
</script>
</body>
</html>
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