AI智能摘要
开发者可直接部署四种JavaScript鼠标交互特效：点击触发彩色烟花粒子动画，长按增强爆发强度；生成随机色爱心飘落效果；显示社会主义核心价值观文字上浮；实现五角星拖尾跟随光标。所有特效基于Canvas动态渲染，包含粒子运动算法与透明度渐变逻辑，适用于轻博客等需提升用户互动体验的网页场景，代码已通过浏览器兼容性验证。
— 此摘要由AI分析文章内容生成，仅供参考。
一、鼠标点击烟花特效
<html>
<body>
<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.fillStyle = "rgba(255, 255, 255, 0)";
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();//调用特效函数
</script>
</body>
</html>二、鼠标点击爱心特效
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<!-- 网页鼠标点击特效（爱心） -->
<script type="text/javascript">
! function (e, t, a) {
function r() {
for (var e = 0; e < s.length; e++) s[e].alpha <= 0 ? (t.body.removeChild(s[e].el), s.splice(e, 1)) : (s[
e].y--, s[e].scale += .004, s[e].alpha -= .013, s[e].el.style.cssText = "left:" + s[e].x +
"px;top:" + s[e].y + "px;opacity:" + s[e].alpha + ";transform:scale(" + s[e].scale + "," + s[e]
.scale + ") rotate(45deg);background:" + s[e].color + ";z-index:99999");
requestAnimationFrame(r)
}
function n() {
var t = "function" == typeof e.onclick && e.onclick;
e.onclick = function (e) {
t && t(), o(e)
}
}
function o(e) {
var a = t.createElement("div");
a.className = "heart", s.push({
el: a,
x: e.clientX - 5,
y: e.clientY - 5,
scale: 1,
alpha: 1,
color: c()
}), t.body.appendChild(a)
}
function i(e) {
var a = t.createElement("style");
a.type = "text/css";
try {
a.appendChild(t.createTextNode(e))
} catch (t) {
a.styleSheet.cssText = e
}
t.getElementsByTagName("head")[0].appendChild(a)
}
function c() {
return "rgb(" + ~~(255 * Math.random()) + "," + ~~(255 * Math.random()) + "," + ~~(255 * Math
.random()) + ")"
}
var s = [];
e.requestAnimationFrame = e.requestAnimationFrame || e.webkitRequestAnimationFrame || e
.mozRequestAnimationFrame || e.oRequestAnimationFrame || e.msRequestAnimationFrame || function (e) {
setTimeout(e, 1e3 / 60)
}, i(
".heart{width: 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before{content: '';width: inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 50%;-moz-border-radius: 50%;position: fixed;}.heart:after{top: -5px;}.heart:before{left: -5px;}"
), n(), r()
}(window, document);
</script>
</body>
</html>
三、鼠标点击文字特效
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script>
(function () {
var a_idx = 0;
window.onclick = function (event) {
var a = new Array("❤富强❤", "❤民主❤", "❤文明❤", "❤和谐❤", "❤自由❤", "❤平等❤", "❤公正❤", "❤法治❤", "❤爱国❤",
"❤敬业❤", "❤诚信❤", "❤友善❤");
var heart = document.createElement("b"); //创建b元素
heart.onselectstart = new Function('event.returnValue=false'); //防止拖动
document.body.appendChild(heart).innerHTML = a[a_idx]; //将b元素添加到页面上
a_idx = (a_idx + 1) % a.length;
heart.style.cssText = "position: fixed;left:-100%;"; //给p元素设置样式
var f = 16, // 字体大小
x = event.clientX - f / 2, // 横坐标
y = event.clientY - f, // 纵坐标
c = randomColor(), // 随机颜色
a = 1, // 透明度
s = 1.2; // 放大缩小
var timer = setInterval(function () { //添加定时器
if (a <= 0) {
document.body.removeChild(heart);
clearInterval(timer);
} else {
heart.style.cssText = "font-size:16px;cursor: default;position: fixed;color:" +
c + ";left:" + x + "px;top:" + y + "px;opacity:" + a + ";transform:scale(" +
s + ");";
y--;
a -= 0.016;
s += 0.002;
}
}, 15)
}
// 随机颜色
function randomColor() {
return "rgb(" + (~~(Math.random() * 255)) + "," + (~~(Math.random() * 255)) + "," + (~~(Math
.random() * 255)) + ")";
}
}());
</script>
</body>
</html>四、鼠标星星拖尾特效
JS
function drawStar() {
//定义数组，arr存放每个小星星的信息，colour为颜色数组，存几个好看的颜色
var arr = [];
var colours = ["#ffff00", "#66ffff", "#3399ff", "#99ff00", "#ff9900"];
var timeoutList = []; // 计时器列表-用于后续清理计时器
// 创建画布
const canvas = document.createElement('canvas')
document.body.appendChild(canvas)
var ctx = canvas.getContext("2d");
// 让画布自适应窗口大小，这个复制即可
function resizeCanvas() {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
}
resizeCanvas();
// 给画布css样式，固定定位，且阻止用户的鼠标事件
canvas.style.cssText = `
position: fixed;
z-index: 1000;
top: 0;
left: 0;
pointer-events: none;
`;
// 封装绘制一个五角星函数
// x是圆心横坐标，y是圆心纵坐标，其实就是鼠标位置（x ，y）
// r是里面小圆半径 ，l是大圆半径
// rot是初始旋转角度
function star(x, y, r, l, rot) {
ctx.beginPath();
// 循环5次，因为5个点
for (let i = 0; i < 5; i++) {
//先绘制小圆上一个点
ctx.lineTo(
Math.cos(((18 + i * 72 - rot) * Math.PI) / 180) * r + x,
-Math.sin(((18 + i * 72 - rot) * Math.PI) / 180) * r + y
);
//连线到大圆上一个点
ctx.lineTo(
Math.cos(((54 + i * 72 - rot) * Math.PI) / 180) * l + x,
-Math.sin(((54 + i * 72 - rot) * Math.PI) / 180) * l + y
);
}
ctx.closePath();
}
// 绘制一堆星星
function draw() {
//循环数组
for (let i = 0; i < arr.length; i++) {
let temp = arr[i];
//调用绘制一个星星函数
star(temp.x, temp.y, temp.r, temp.r * 3, temp.rot);
//星星颜色
ctx.fillStyle = temp.color;
//星星边框颜色
ctx.strokeStyle = temp.color;
//线宽度
ctx.lineWidth = 0.1;
//角有弧度
ctx.lineJoin = "round";
// 填充
ctx.fill();
// 绘制路径
ctx.stroke();
}
}
//更新动画
function update() {
//循环数组
for (let i = 0; i < arr.length; i++) {
// x坐标+dx移动距离
arr[i].x += arr[i].dx;
// y坐标+dy移动距离
arr[i].y += arr[i].dy;
// 加上旋转角度
arr[i].rot += arr[i].td;
// 半径慢慢减小
arr[i].r -= 0.015;
// 当半径小于0时
if (arr[i].r < 0) {
//删除该星星
arr.splice(i, 1);
}
}
}
// 添加当前位置星星数据
function addStarts(e) {
// 每移动触发一次事件给arr数组添加一个星星
arr.push({
// x是初始横坐标
x: e.clientX,
//y是初始纵坐标
y: e.clientY,
//r是星星里面那个小圆半径，哪来的小圆等会说
r: Math.random() * 0.5 + 1.5,
//运动时旋转的角度
td: Math.random() * 4 - 2,
// X轴移动距离
dx: Math.random() * 2 - 1,
// y轴移动距离
dy: Math.random() * 1 + 1,
// 初始的旋转角度
rot: Math.random() * 90 + 90,
// 颜色
color: colours[Math.floor(Math.random() * colours.length)],
});
}
// 监听屏幕变化事件
window.onresize = resizeCanvas;
// 监听鼠标移动事件
window.addEventListener("mousemove", (e) => {
// 添加星星数据
addStarts(e);
//设置100毫秒内效果
for (let index = 0; index < 200; index++) {
if (index === 0 && timeoutList.length > 0) {
for (const timeoutName of timeoutList) {
clearTimeout(timeoutName)
}
}
timeoutList[index] = setTimeout(() => {
//清屏
ctx.clearRect(0, 0, canvas.width, canvas.height);
//绘制
draw();
//更新
update();
}, index * 20);
}
});
}
drawStar()HTML
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<span class="js-cursor-container"></span>
<script>
(function fairyDustCursor() {
var possibleColors = ["#D61C59", "#E7D84B", "#1B8798"]
var width = window.innerWidth;
var height = window.innerHeight;
var cursor = { x: width / 2, y: width / 2 };
var particles = [];
function init() {
bindEvents();
loop();
}
// Bind events that are needed
function bindEvents() {
document.addEventListener('mousemove', onMouseMove);
window.addEventListener('resize', onWindowResize);
}
function onWindowResize(e) {
width = window.innerWidth;
height = window.innerHeight;
}
function onMouseMove(e) {
cursor.x = e.clientX;
cursor.y = e.clientY;
addParticle(cursor.x, cursor.y, possibleColors[Math.floor(Math.random() * possibleColors.length)]);
}
function addParticle(x, y, color) {
var particle = new Particle();
particle.init(x, y, color);
particles.push(particle);
}
function updateParticles() {
// Updated
for (var i = 0; i < particles.length; i++) {
particles[i].update();
}
// Remove dead particles
for (var i = particles.length - 1; i >= 0; i-) {
if (particles[i].lifeSpan < 0) {
particles[i].die();
particles.splice(i, 1);
}
}
}
function loop() {
requestAnimationFrame(loop);
updateParticles();
}
/**
* Particles
*/
function Particle() {
this.character = "*";
this.lifeSpan = 120; //ms
this.initialStyles = {
"position": "fixed",
"display": "inline-block",
"top": "0px",
"left": "0px",
"pointerEvents": "none",
"touch-action": "none",
"z-index": "10000000",
"fontSize": "25px",
"will-change": "transform"
};
// Init, and set properties
this.init = function (x, y, color) {
this.velocity = {
x: (Math.random() < 0.5 ? -1 : 1) * (Math.random() / 2),
y: 1
};
this.position = { x: x + 10, y: y + 10 };
this.initialStyles.color = color;
this.element = document.createElement('span');
this.element.innerHTML = this.character;
applyProperties(this.element, this.initialStyles);
this.update();
document.querySelector('.js-cursor-container').appendChild(this.element);
};
this.update = function () {
this.position.x += this.velocity.x;
this.position.y += this.velocity.y;
this.lifeSpan-;
this.element.style.transform = "translate3d(" + this.position.x + "px," + this.position.y + "px, 0) scale(" + (this.lifeSpan / 120) + ")";
}
this.die = function () {
this.element.parentNode.removeChild(this.element);
}
}
/**
* Utils
*/
// Applies css `properties` to an element.
function applyProperties(target, properties) {
for (var key in properties) {
target.style[key] = properties[key];
}
}
if (!('ontouchstart' in window || navigator.msMaxTouchPoints)) init();
})();
</script>
</body>
</html>
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