Hexo博客增加鼠标点击特效

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以NexT主题举例

##配置
在主题_config.yml中添加动态配置项

cursor_effect:
enabled: true
type: love  # fireworks：礼花 | explosion：爆炸 | love：浮出爱心 | text：浮出文字

##代码
文件位置：/themes/next/layout/_custom/custom.swig ，如没有请自建，添加如下代码：

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{% if theme.cursor_effect %}
  {% if theme.cursor_effect.type == "fireworks" %}
	<script src="/js/custom/fireworks.js"></script>
  {% elseif theme.cursor_effect.type == "explosion" %}
	<canvas class="fireworks" style="position: fixed;left: 0;top: 0;z-index: 1; pointer-events: none;" ></canvas>
	<script src="//cdn.bootcss.com/animejs/2.2.0/anime.min.js"></script>
	<script src="/js/custom/explosion.min.js"></script>
  {% elseif theme.cursor_effect.type == "love" %}
	<script src="/js/custom/love.min.js"></script>
  {% elseif theme.cursor_effect.type == "text" %}
	<script src="/js/custom/text.js"></script>
  {% endif %}
{% endif %}

如果是第一次使用这个custom.swig，则需要在 /themes/next/layout/_layout.swig 中引入

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{% include '_custom/custom.swig' %}

将以下4个 JS 文件复制到目录 /themes/next/source/js/custom/ 下

fireworks.js

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class Circle {
  constructor({ origin, speed, color, angle, context }) {
	this.origin = origin
	this.position = { ...this.origin }
	this.color = color
	this.speed = speed
	this.angle = angle
	this.context = context
	this.renderCount = 0
  }

  draw() {
	this.context.fillStyle = this.color
	this.context.beginPath()
	this.context.arc(this.position.x, this.position.y, 2, 0, Math.PI * 2)
	this.context.fill()
  }

  move() {
	this.position.x = (Math.sin(this.angle) * this.speed) + this.position.x
	this.position.y = (Math.cos(this.angle) * this.speed) + this.position.y + (this.renderCount * 0.3)
	this.renderCount++
  }
}

class Boom {
  constructor ({ origin, context, circleCount = 16, area }) {
	this.origin = origin
	this.context = context
	this.circleCount = circleCount
	this.area = area
	this.stop = false
	this.circles = []
  }

  randomArray(range) {
	const length = range.length
	const randomIndex = Math.floor(length * Math.random())
	return range[randomIndex]
  }

  randomColor() {
	const range = ['8', '9', 'A', 'B', 'C', 'D', 'E', 'F']
	return '#' + this.randomArray(range) + this.randomArray(range) + this.randomArray(range) + this.randomArray(range) + this.randomArray(range) + this.randomArray(range)
  }

  randomRange(start, end) {
	return (end - start) * Math.random() + start
  }

  init() {
	for(let i = 0; i < this.circleCount; i++) {
	  const circle = new Circle({
		context: this.context,
		origin: this.origin,
		color: this.randomColor(),
		angle: this.randomRange(Math.PI - 1, Math.PI + 1),
		speed: this.randomRange(1, 6)
	  })
	  this.circles.push(circle)
	}
  }

  move() {
	this.circles.forEach((circle, index) => {
	  if (circle.position.x > this.area.width || circle.position.y > this.area.height) {
		return this.circles.splice(index, 1)
	  }
	  circle.move()
	})
	if (this.circles.length == 0) {
	  this.stop = true
	}
  }

  draw() {
	this.circles.forEach(circle => circle.draw())
  }
}

class CursorSpecialEffects {
  constructor() {
	this.computerCanvas = document.createElement('canvas')
	this.renderCanvas = document.createElement('canvas')

	this.computerContext = this.computerCanvas.getContext('2d')
	this.renderContext = this.renderCanvas.getContext('2d')

	this.globalWidth = window.innerWidth
	this.globalHeight = window.innerHeight

	this.booms = []
	this.running = false
  }

  handleMouseDown(e) {
	const boom = new Boom({
	  origin: { x: e.clientX, y: e.clientY },
	  context: this.computerContext,
	  area: {
		width: this.globalWidth,
		height: this.globalHeight
	  }
	})
	boom.init()
	this.booms.push(boom)
	this.running || this.run()
  }

  handlePageHide() {
	this.booms = []
	this.running = false
  }

  init() {
	const style = this.renderCanvas.style
	style.position = 'fixed'
	style.top = style.left = 0
	style.zIndex = '999999999999999999999999999999999999999999'
	style.pointerEvents = 'none'

	style.width = this.renderCanvas.width = this.computerCanvas.width = this.globalWidth
	style.height = this.renderCanvas.height = this.computerCanvas.height = this.globalHeight

	document.body.append(this.renderCanvas)

	window.addEventListener('mousedown', this.handleMouseDown.bind(this))
	window.addEventListener('pagehide', this.handlePageHide.bind(this))
  }

  run() {
	this.running = true
	if (this.booms.length == 0) {
	  return this.running = false
	}

	requestAnimationFrame(this.run.bind(this))

	this.computerContext.clearRect(0, 0, this.globalWidth, this.globalHeight)
	this.renderContext.clearRect(0, 0, this.globalWidth, this.globalHeight)

	this.booms.forEach((boom, index) => {
	  if (boom.stop) {
		return this.booms.splice(index, 1)
	  }
	  boom.move()
	  boom.draw()
	})
	this.renderContext.drawImage(this.computerCanvas, 0, 0, this.globalWidth, this.globalHeight)
  }
}

const cursorSpecialEffects = new CursorSpecialEffects()
cursorSpecialEffects.init()

explosion.min.js

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"use strict";function updateCoords(e){pointerX=(e.clientX||e.touches[0].clientX)-canvasEl.getBoundingClientRect().left,pointerY=e.clientY||e.touches[0].clientY-canvasEl.getBoundingClientRect().top}function setParticuleDirection(e){var t=anime.random(0,360)*Math.PI/180,a=anime.random(50,180),n=[-1,1][anime.random(0,1)]*a;return{x:e.x+n*Math.cos(t),y:e.y+n*Math.sin(t)}}function createParticule(e,t){var a={};return a.x=e,a.y=t,a.color=colors[anime.random(0,colors.length-1)],a.radius=anime.random(16,32),a.endPos=setParticuleDirection(a),a.draw=function(){ctx.beginPath(),ctx.arc(a.x,a.y,a.radius,0,2*Math.PI,!0),ctx.fillStyle=a.color,ctx.fill()},a}function createCircle(e,t){var a={};return a.x=e,a.y=t,a.color="#F00",a.radius=0.1,a.alpha=0.5,a.lineWidth=6,a.draw=function(){ctx.globalAlpha=a.alpha,ctx.beginPath(),ctx.arc(a.x,a.y,a.radius,0,2*Math.PI,!0),ctx.lineWidth=a.lineWidth,ctx.strokeStyle=a.color,ctx.stroke(),ctx.globalAlpha=1},a}function renderParticule(e){for(var t=0;t<e.animatables.length;t++){e.animatables[t].target.draw()}}function animateParticules(e,t){for(var a=createCircle(e,t),n=[],i=0;i<numberOfParticules;i++){n.push(createParticule(e,t))}anime.timeline().add({targets:n,x:function(e){return e.endPos.x},y:function(e){return e.endPos.y},radius:0.1,duration:anime.random(1200,1800),easing:"easeOutExpo",update:renderParticule}).add({targets:a,radius:anime.random(80,160),lineWidth:0,alpha:{value:0,easing:"linear",duration:anime.random(600,800)},duration:anime.random(1200,1800),easing:"easeOutExpo",update:renderParticule,offset:0})}function debounce(e,t){var a;return function(){var n=this,i=arguments;clearTimeout(a),a=setTimeout(function(){e.apply(n,i)},t)}}var canvasEl=document.querySelector(".fireworks");if(canvasEl){var ctx=canvasEl.getContext("2d"),numberOfParticules=30,pointerX=0,pointerY=0,tap="mousedown",colors=["#FF1461","#18FF92","#5A87FF","#FBF38C"],setCanvasSize=debounce(function(){canvasEl.width=2*window.innerWidth,canvasEl.height=2*window.innerHeight,canvasEl.style.width=window.innerWidth+"px",canvasEl.style.height=window.innerHeight+"px",canvasEl.getContext("2d").scale(2,2)},500),render=anime({duration:1/0,update:function(){ctx.clearRect(0,0,canvasEl.width,canvasEl.height)}});document.addEventListener(tap,function(e){"sidebar"!==e.target.id&&"toggle-sidebar"!==e.target.id&&"A"!==e.target.nodeName&&"IMG"!==e.target.nodeName&&(render.play(),updateCoords(e),animateParticules(pointerX,pointerY))},!1),setCanvasSize(),window.addEventListener("resize",setCanvasSize,!1)}"use strict";function updateCoords(e){pointerX=(e.clientX||e.touches[0].clientX)-canvasEl.getBoundingClientRect().left,pointerY=e.clientY||e.touches[0].clientY-canvasEl.getBoundingClientRect().top}function setParticuleDirection(e){var t=anime.random(0,360)*Math.PI/180,a=anime.random(50,180),n=[-1,1][anime.random(0,1)]*a;return{x:e.x+n*Math.cos(t),y:e.y+n*Math.sin(t)}}function createParticule(e,t){var a={};return a.x=e,a.y=t,a.color=colors[anime.random(0,colors.length-1)],a.radius=anime.random(16,32),a.endPos=setParticuleDirection(a),a.draw=function(){ctx.beginPath(),ctx.arc(a.x,a.y,a.radius,0,2*Math.PI,!0),ctx.fillStyle=a.color,ctx.fill()},a}function createCircle(e,t){var a={};return a.x=e,a.y=t,a.color="#F00",a.radius=0.1,a.alpha=0.5,a.lineWidth=6,a.draw=function(){ctx.globalAlpha=a.alpha,ctx.beginPath(),ctx.arc(a.x,a.y,a.radius,0,2*Math.PI,!0),ctx.lineWidth=a.lineWidth,ctx.strokeStyle=a.color,ctx.stroke(),ctx.globalAlpha=1},a}function renderParticule(e){for(var t=0;t<e.animatables.length;t++){e.animatables[t].target.draw()}}function animateParticules(e,t){for(var a=createCircle(e,t),n=[],i=0;i<numberOfParticules;i++){n.push(createParticule(e,t))}anime.timeline().add({targets:n,x:function(e){return e.endPos.x},y:function(e){return e.endPos.y},radius:0.1,duration:anime.random(1200,1800),easing:"easeOutExpo",update:renderParticule}).add({targets:a,radius:anime.random(80,160),lineWidth:0,alpha:{value:0,easing:"linear",duration:anime.random(600,800)},duration:anime.random(1200,1800),easing:"easeOutExpo",update:renderParticule,offset:0})}function debounce(e,t){var a;return function(){var n=this,i=arguments;clearTimeout(a),a=setTimeout(function(){e.apply(n,i)},t)}}var canvasEl=document.querySelector(".fireworks");if(canvasEl){var ctx=canvasEl.getContext("2d"),numberOfParticules=30,pointerX=0,pointerY=0,tap="mousedown",colors=["#FF1461","#18FF92","#5A87FF","#FBF38C"],setCanvasSize=debounce(function(){canvasEl.width=2*window.innerWidth,canvasEl.height=2*window.innerHeight,canvasEl.style.width=window.innerWidth+"px",canvasEl.style.height=window.innerHeight+"px",canvasEl.getContext("2d").scale(2,2)},500),render=anime({duration:1/0,update:function(){ctx.clearRect(0,0,canvasEl.width,canvasEl.height)}});document.addEventListener(tap,function(e){"sidebar"!==e.target.id&&"toggle-sidebar"!==e.target.id&&"A"!==e.target.nodeName&&"IMG"!==e.target.nodeName&&(render.play(),updateCoords(e),animateParticules(pointerX,pointerY))},!1),setCanvasSize(),window.addEventListener("resize",setCanvasSize,!1)};

love.min.js

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!function(e,t,a){function n(){c(".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;}"),o(),r()}function r(){for(var e=0;e<d.length;e++)d[e].alpha<=0?(t.body.removeChild(d[e].el),d.splice(e,1)):(d[e].y--,d[e].scale+=.004,d[e].alpha-=.013,d[e].el.style.cssText="left:"+d[e].x+"px;top:"+d[e].y+"px;opacity:"+d[e].alpha+";transform:scale("+d[e].scale+","+d[e].scale+") rotate(45deg);background:"+d[e].color+";z-index:99999");requestAnimationFrame(r)}function o(){var t="function"==typeof e.onclick&&e.onclick;e.onclick=function(e){t&&t(),i(e)}}function i(e){var a=t.createElement("div");a.className="heart",d.push({el:a,x:e.clientX-5,y:e.clientY-5,scale:1,alpha:1,color:s()}),t.body.appendChild(a)}function c(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 s(){return"rgb("+~~(255*Math.random())+","+~~(255*Math.random())+","+~~(255*Math.random())+")"}var d=[];e.requestAnimationFrame=function(){return e.requestAnimationFrame||e.webkitRequestAnimationFrame||e.mozRequestAnimationFrame||e.oRequestAnimationFrame||e.msRequestAnimationFrame||function(e){setTimeout(e,1e3/60)}}(),n()}(window,document);

clickShowText.js

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var a_idx = 0;
jQuery(document).ready(function($) {
	$("body").click(function(e) {
		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 $i = $("<span/>").text(a[a_idx]);
		a_idx = (a_idx + 1) % a.length;
		var x = e.pageX,
		y = e.pageY;
		$i.css({
			"z-index": 999999999999999999999999999999999999999999999999999999999999999999999,
			"top": y - 20,
			"left": x,
			"cursor":"default",
			"position": "absolute",
			"font-weight": "bold",
			"color": "#ff6651"
		});
		$("body").append($i);
		$i.animate({
			"top": y - 180,
			"opacity": 0
		},1500,function() {
			$i.remove();
		});
	});
});