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鼠标点击爆彩效果.html
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鼠标点击爆彩效果.html
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要运行这段JavaScript代码，您需要将其嵌入到一个HTML文件中。这里是一个完整的HTML示例，展示如何将代码集成到您的网页中：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Click Effect</title>
<style>
body, html {
margin: 0;
padding: 0;
overflow: hidden;
}
.pointer {
width: 10px;
height: 10px;
background: #000;
border-radius: 50%;
position: absolute;
pointer-events: none;
transform: translate(-50%, -50%);
}
body.is-pressed .pointer {
background: #f00;
}
body.is-longpress .pointer {
background: #0f0;
}
</style>
</head>
<body>
<h1>Welcome to My Website</h1>
<p>This is my homepage content.</p>
<script>
function clickEffect() {
let balls = [];
let longPressed = false;
let longPress;
let multiplier = 0;
let width, height;
let origin;
let normal;
let ctx;
const colours = ["#F73859", "#14FFEC", "#00E0FF", "#FF99FE", "#FAF15D"];
const canvas = document.createElement("canvas");
document.body.appendChild(canvas);
canvas.setAttribute("style", "width: 100%; height: 100%; top: 0; left: 0; z-index: 99999; position: fixed; pointer-events: none;");
const pointer = document.createElement("span");
pointer.classList.add("pointer");
document.body.appendChild(pointer);
if (canvas.getContext && window.addEventListener) {
ctx = canvas.getContext("2d");
updateSize();
window.addEventListener('resize', updateSize, false);
loop();
window.addEventListener("mousedown", function (e) {
pushBalls(randBetween(10, 20), e.clientX, e.clientY);
document.body.classList.add("is-pressed");
longPress = setTimeout(function () {
document.body.classList.add("is-longpress");
longPressed = true;
}, 500);
}, false);
window.addEventListener("mouseup", function (e) {
clearInterval(longPress);
if (longPressed == true) {
document.body.classList.remove("is-longpress");
pushBalls(randBetween(50 + Math.ceil(multiplier), 100 + Math.ceil(multiplier)), e.clientX, e.clientY);
longPressed = false;
}
document.body.classList.remove("is-pressed");
}, false);
window.addEventListener("mousemove", function (e) {
let x = e.clientX;
let y = e.clientY;
pointer.style.top = y + "px";
pointer.style.left = x + "px";
}, false);
} else {
console.log("canvas or addEventListener is unsupported!");
}
function updateSize() {
canvas.width = window.innerWidth * 2;
canvas.height = window.innerHeight * 2;
canvas.style.width = window.innerWidth + 'px';
canvas.style.height = window.innerHeight + 'px';
ctx.scale(2, 2);
width = (canvas.width = window.innerWidth);
height = (canvas.height = window.innerHeight);
origin = {
x: width / 2,
y: height / 2
};
normal = {
x: width / 2,
y: height / 2
};
}
class Ball {
constructor(x = origin.x, y = origin.y) {
this.x = x;
this.y = y;
this.angle = Math.PI * 2 * Math.random();
if (longPressed == true) {
this.multiplier = randBetween(14 + multiplier, 15 + multiplier);
} else {
this.multiplier = randBetween(6, 12);
}
this.vx = (this.multiplier + Math.random() * 0.5) * Math.cos(this.angle);
this.vy = (this.multiplier + Math.random() * 0.5) * Math.sin(this.angle);
this.r = randBetween(8, 12) + 3 * Math.random();
this.color = colours[Math.floor(Math.random() * colours.length)];
}
update() {
this.x += this.vx - normal.x;
this.y += this.vy - normal.y;
normal.x = -2 / window.innerWidth * Math.sin(this.angle);
normal.y = -2 / window.innerHeight * Math.cos(this.angle);
this.r -= 0.3;
this.vx *= 0.9;
this.vy *= 0.9;
}
}
function pushBalls(count = 1, x = origin.x, y = origin.y) {
for (let i = 0; i < count; i++) {
balls.push(new Ball(x, y));
}
}
function randBetween(min, max) {
return Math.floor(Math.random() * max) + min;
}
function loop() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
for (let i = 0; i < balls.length; i++) {
let b = balls[i];
if (b.r < 0) continue;
ctx.fillStyle = b.color;
ctx.beginPath();
ctx.arc(b.x, b.y, b.r, 0, Math.PI * 2, false);
ctx.fill();
b.update();
}
if (longPressed == true) {
multiplier += 0.2;
} else if (!longPressed && multiplier >= 0) {
multiplier -= 0.4;
}
removeBall();
requestAnimationFrame(loop);
}
function removeBall() {
for (let i = 0; i < balls.length; i++) {
let b = balls[i];
if (b.x + b.r < 0 || b.x - b.r > width || b.y + b.r < 0 || b.y - b.r > height || b.r < 0) {
balls.splice(i, 1);
}
}
}
}
clickEffect();
</script>
</body>
</html>
运行步骤：
将上面的代码保存为一个HTML文件，例如 index.html。
双击 index.html 文件，或在浏览器中打开该文件。
现在，点击页面时会看到彩色的球体动画效果。
说明：
Canvas：创建了一个 canvas 元素并设置样式为全屏覆盖，但 pointer-events: none 确保了它不会干扰其他元素的点击。
Pointer：创建了一个 span 元素来跟踪鼠标指针的位置。
事件监听器：监听 mousedown、mouseup 和 mousemove 事件，分别处理按下、松开和移动鼠标的情况。
动画循环：使用 requestAnimationFrame 方法在每一帧中绘制球体并更新其状态。