在你的博客添加鼠标点击和滑动特效

试试移动和点击鼠标，会有什么效果？

鼠标点击或移动时会出现这种特效，这是如何做到的呢？我用Sakurairo进行演示，不代表对所有的主题和框架都适用。

第一步#

打开网站后台，选择iro主题设置>全局设置>页尾设置>页尾附加代码。

第二步#

在里面添加以下代码：

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 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; }

这是鼠标点击时的特效。

第三步#

如果想要鼠标滑动的特效，在</script>下面添加以下代码：

<span class=“js-cursor-container”></span> <script> (function fairyDustCursor() {

        var possibleColors = &#91;"#D61C59", "#E7D84B", "#1B8798"]
        var width = window.innerWidth;
        var height = window.innerHeight;
        var cursor = { x: width / 2, y: width / 2 };
        var particles = &#91;];

        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&#91;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 &lt; particles.length; i++) {
                particles&#91;i].update();
            }

            // Remove dead particles
            for (var i = particles.length - 1; i >= 0; i--) {
                if (particles&#91;i].lifeSpan &lt; 0) {
                    particles&#91;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() &lt; 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&#91;key] = properties&#91;key];
            }
        }

        if (!('ontouchstart' in window || navigator.msMaxTouchPoints)) init();
    })();    
&lt;/script>

大功告成#

保存一下，试试效果吧！