以下是一个使用HTML5 Canvas制作的七夕情人节表白页面的简化示例代码。这个示例包括了一个背景音乐、一段爱心文字和一个烟花弹的动画效果。
<!DOCTYPE html>
<html>
<head>
<title>七夕情人节表白</title>
<style>
canvas {
position: absolute;
width: 100%;
height: 100%;
}
body {
margin: 0;
overflow: hidden;
background-color: #000;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<audio src="love_song.mp3" autoplay loop></audio>
<script>
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
const width = canvas.width = window.innerWidth;
const height = canvas.height = window.innerHeight;
const heart = new Image();
heart.src = 'heart.png';
let hearts = [];
function Heart(x, y) {
this.x = x;
this.y = y;
this.size = random(10, 20);
this.speedX = random(-1, 1);
this.speedY = random(1, 3);
this.life = 1;
}
Heart.prototype.draw = function() {
ctx.globalAlpha = this.life;
ctx.drawImage(heart, this.x, this.y, this.size, this.size);
};
Heart.prototype.update = function() {
this.x += this.speedX;
this.y += this.speedY;
this.size -= 0.05;
this.life -= 0.01;
if(this.life <= 0) {
hearts.shift();
}
};
function random(min, max) {
return Math.random() * (max - min) + min;
}
function loop() {
ctx.clearRect(0, 0, width, height);
for(let i = 0; i < hearts.length; i++) {
hearts[i].draw();
hearts[i].update();
}
requestAnimationFrame(loop);
}
function addHeart(e) {
hearts.push(new Heart(e.clientX, e.clientY));
}
canvas.addEventListener('click', addHeart);
canvas.addEventListener('touchstart', addHeart);
loop();
</script>
</body>
</html>在这个示例中，我们创建了一个简单的七夕情人节表白页面，当用户点击或触摸屏幕时，会在点击处产生一个心形图案。心形图案随机大小和速度，并随时间逐渐消失。背景音乐设置为循环播放。这个示例假设你有一个名为heart.png的