Hexo-NexT添加打字特效、鼠标点击特效

本文主要介绍评论框打字特效以及鼠标点击特效的实现。

鼠标点击特效

下面是四个比较常用的鼠标点击特效脚本,我们可以把它们放置在 themes\next\source\js\cursor\ 目录下:

  • 礼花特效代码:
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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()
  • 爆炸特效代码:
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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=.1,a.alpha=.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:.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)}
  • 浮出爱心特效代码:
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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);
  • 浮出文字特效代码:
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var a_idx = 0;
jQuery(document).ready(function($) {
$("body").click(function(e) {
var a = new Array("喜欢我", "不喜欢我");
var $i = $("<span/>").text(a[a_idx]);
var x = e.pageX,
y = e.pageY;
$i.css({
"z-index": 99999,
"top": y - 28,
"left": x - a[a_idx].length * 8,
"position": "absolute",
"color": "#ff7a45"
});
$("body").append($i);
$i.animate({
"top": y - 180,
"opacity": 0
}, 1500, function() {
$i.remove();
});
a_idx = (a_idx + 1) % a.length;
});
});

然后我们在主题自定义布局文件themes\next\layout\_custom\custom.swig中添加以下代码:

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{# 鼠标点击特效 #}
{% if theme.cursor_effect == "fireworks" %}
<script async src="/js/cursor/fireworks.js"></script>
{% elseif theme.cursor_effect == "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 async src="/js/cursor/explosion.min.js"></script>
{% elseif theme.cursor_effect == "love" %}
<script async src="/js/cursor/love.min.js"></script>
{% elseif theme.cursor_effect == "text" %}
<script async src="/js/cursor/text.js"></script>
{% endif %}

如果 custom.swig 文件不存在,我们可以手动新建这个文件并在布局页面themes\next\layout\_layout.swig中 body 末尾引入:

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      ...
{% include '_third-party/exturl.swig' %}
{% include '_third-party/bookmark.swig' %}
{% include '_third-party/copy-code.swig' %}

+ {% include '_custom/custom.swig' %}
</body>
</html>

然后我们在主题配置文件中添加以下代码:

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# mouse click effect: fireworks | explosion | love | text
cursor_effect: fireworks

这样即可在配置文件中一键快速切换鼠标点击特效。

打字特效

我们需要添加下面这个脚本activate-power-mode.min.js,然后放置在 themes\next\source\js\ 目录下:

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(function webpackUniversalModuleDefinition(root,factory){if(typeof exports==='object'&&typeof module==='object')module.exports=factory();else if(typeof define==='function'&&define.amd)define([],factory);else if(typeof exports==='object')exports["POWERMODE"]=factory();else root["POWERMODE"]=factory()})(this,function(){return(function(modules){var installedModules={};function __webpack_require__(moduleId){if(installedModules[moduleId])return installedModules[moduleId].exports;var module=installedModules[moduleId]={exports:{},id:moduleId,loaded:false};modules[moduleId].call(module.exports,module,module.exports,__webpack_require__);module.loaded=true;return module.exports}__webpack_require__.m=modules;__webpack_require__.c=installedModules;__webpack_require__.p="";return __webpack_require__(0)})([function(module,exports,__webpack_require__){'use strict';var canvas=document.createElement('canvas');canvas.width=window.innerWidth;canvas.height=window.innerHeight;canvas.style.cssText='position:fixed;top:0;left:0;pointer-events:none;z-index:999999';window.addEventListener('resize',function(){canvas.width=window.innerWidth;canvas.height=window.innerHeight});document.body.appendChild(canvas);var context=canvas.getContext('2d');var particles=[];var particlePointer=0;POWERMODE.shake=true;function getRandom(min,max){return Math.random()*(max-min)+min}function getColor(el){if(POWERMODE.colorful){var u=getRandom(0,360);return'hsla('+getRandom(u-10,u+10)+', 100%, '+getRandom(50,80)+'%, '+1+')'}else{return window.getComputedStyle(el).color}}function getCaret(){var el=document.activeElement;var bcr;if(el.tagName==='TEXTAREA'||(el.tagName==='INPUT'&&el.getAttribute('type')==='text')){var offset=__webpack_require__(1)(el,el.selectionStart);bcr=el.getBoundingClientRect();return{x:offset.left+bcr.left,y:offset.top+bcr.top,color:getColor(el)}}var selection=window.getSelection();if(selection.rangeCount){var range=selection.getRangeAt(0);var startNode=range.startContainer;if(startNode.nodeType===document.TEXT_NODE){startNode=startNode.parentNode}bcr=range.getBoundingClientRect();return{x:bcr.left,y:bcr.top,color:getColor(startNode)}}return{x:0,y:0,color:'transparent'}}function createParticle(x,y,color){return{x:x,y:y,alpha:1,color:color,velocity:{x:-1+Math.random()*2,y:-3.5+Math.random()*2}}}function POWERMODE(){{var caret=getCaret();var numParticles=5+Math.round(Math.random()*10);while(numParticles--){particles[particlePointer]=createParticle(caret.x,caret.y,caret.color);particlePointer=(particlePointer+1)%500}}{if(POWERMODE.shake){var intensity=1+2*Math.random();var x=intensity*(Math.random()>0.5?-1:1);var y=intensity*(Math.random()>0.5?-1:1);document.body.style.marginLeft=x+'px';document.body.style.marginTop=y+'px';setTimeout(function(){document.body.style.marginLeft='';document.body.style.marginTop=''},75)}}};POWERMODE.colorful=false;function loop(){requestAnimationFrame(loop);context.clearRect(0,0,canvas.width,canvas.height);for(var i=0;i<particles.length;++i){var particle=particles[i];if(particle.alpha<=0.1)continue;particle.velocity.y+=0.075;particle.x+=particle.velocity.x;particle.y+=particle.velocity.y;particle.alpha*=0.96;context.globalAlpha=particle.alpha;context.fillStyle=particle.color;context.fillRect(Math.round(particle.x-1.5),Math.round(particle.y-1.5),3,3)}}requestAnimationFrame(loop);module.exports=POWERMODE},function(module,exports){(function(){var properties=['direction','boxSizing','width','height','overflowX','overflowY','borderTopWidth','borderRightWidth','borderBottomWidth','borderLeftWidth','borderStyle','paddingTop','paddingRight','paddingBottom','paddingLeft','fontStyle','fontVariant','fontWeight','fontStretch','fontSize','fontSizeAdjust','lineHeight','fontFamily','textAlign','textTransform','textIndent','textDecoration','letterSpacing','wordSpacing','tabSize','MozTabSize'];var isFirefox=window.mozInnerScreenX!=null;function getCaretCoordinates(element,position,options){var debug=options&&options.debug||false;if(debug){var el=document.querySelector('#input-textarea-caret-position-mirror-div');if(el){el.parentNode.removeChild(el)}}var div=document.createElement('div');div.id='input-textarea-caret-position-mirror-div';document.body.appendChild(div);var style=div.style;var computed=window.getComputedStyle?getComputedStyle(element):element.currentStyle;style.whiteSpace='pre-wrap';if(element.nodeName!=='INPUT')style.wordWrap='break-word';style.position='absolute';if(!debug)style.visibility='hidden';properties.forEach(function(prop){style[prop]=computed[prop]});if(isFirefox){if(element.scrollHeight>parseInt(computed.height))style.overflowY='scroll'}else{style.overflow='hidden'}div.textContent=element.value.substring(0,position);if(element.nodeName==='INPUT')div.textContent=div.textContent.replace(/\s/g,"\u00a0");var span=document.createElement('span');span.textContent=element.value.substring(position)||'.';div.appendChild(span);var coordinates={top:span.offsetTop+parseInt(computed['borderTopWidth']),left:span.offsetLeft+parseInt(computed['borderLeftWidth'])};if(debug){span.style.backgroundColor='#aaa'}else{document.body.removeChild(div)}return coordinates}if(typeof module!="undefined"&&typeof module.exports!="undefined"){module.exports=getCaretCoordinates}else{window.getCaretCoordinates=getCaretCoordinates}}())}])});

在主题自定义布局文件themes\next\layout\_custom\custom.swig中添加以下代码:

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{# 打字特效 #}
{% if theme.typing_effect %}
<script src="/js/activate-power-mode.min.js"></script>
<script>
POWERMODE.colorful = {{ theme.typing_effect.colorful }};
POWERMODE.shake = {{ theme.typing_effect.shake }};
document.body.addEventListener('input', POWERMODE);
</script>
{% endif %}

如果 custom.swig 文件不存在,我们可以手动新建这个文件并在布局页面themes\next\layout\_layout.swig中 body 末尾引入:

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      ...
{% include '_third-party/exturl.swig' %}
{% include '_third-party/bookmark.swig' %}
{% include '_third-party/copy-code.swig' %}

+ {% include '_custom/custom.swig' %}
</body>
</html>

然后我们在主题配置文件中添加以下代码:

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# typing effect
typing_effect:
colorful: true # 礼花特效
shake: false # 震动特效

这样即可在配置文件中一键快速切换打字特效。

参考


----------- 本文结束啦感谢您阅读 -----------

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