基于jsp的动态效果的登录页面

/* ----------------------------------------------- /* Author : Vincent Garreau - vincentgarreau.com /* MIT license: http://opensource.org/licenses/MIT /* Demo / Generator : vincentgarreau.com/particles.js /* GitHub : github.com/VincentGarreau/particles.js /* How to use? : Check the GitHub README /* v2.0.0 /* ----------------------------------------------- */ function hexToRgb(e){var a=/^#?([a-f\d])([a-f\d])([a-f\d])$/i;e=e.replace(a,function(e,a,t,i){return a+a+t+t+i+i});var t=/^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(e);return t?{r:parseInt(t[1],16),g:parseInt(t[2],16),b:parseInt(t[3],16)}:null}function clamp(e,a,t){return Math.min(Math.max(e,a),t)}function isInArray(e,a){return a.indexOf(e)>-1}var pJS=function(e,a){var t=document.querySelector("#"+e+" > .particles-js-canvas-el");this.pJS={canvas:{el:t,w:t.offsetWidth,h:t.offsetHeight},particles:{number:{value:400,density:{enable:!0,value_area:800}},color:{value:"#fff"},shape:{type:"circle",stroke:{width:0,color:"#ff0000"},polygon:{nb_sides:5},image:{src:"",width:100,height:100}},opacity:{value:1,random:!1,anim:{enable:!1,speed:2,opacity_min:0,sync:!1}},size:{value:20,random:!1,anim:{enable:!1,speed:20,size_min:0,sync:!1}},line_linked:{enable:!0,distance:100,color:"#fff",opacity:1,width:1},move:{enable:!0,speed:2,direction:"none",random:!1,straight:!1,out_mode:"out",bounce:!1,attract:{enable:!1,rotateX:3e3,rotateY:3e3}},array:[]},interactivity:{detect_on:"canvas",events:{onhover:{enable:!0,mode:"grab"},onclick:{enable:!0,mode:"push"},resize:!0},modes:{grab:{distance:100,line_linked:{opacity:1}},bubble:{distance:200,size:80,duration:.4},repulse:{distance:200,duration:.4},push:{particles_nb:4},remove:{particles_nb:2}},mouse:{}},retina_detect:!1,fn:{interact:{},modes:{},vendors:{}},tmp:{}};var i=this.pJS;a&&Object.deepExtend(i,a),i.tmp.obj={size_value:i.particles.size.value,size_anim_speed:i.particles.size.anim.speed,move_speed:i.particles.move.speed,line_linked_distance:i.particles.line_linked.distance,line_linked_width:i.particles.line_linked.width,mode_grab_distance:i.interactivity.modes.grab.distance,mode_bubble_distance:i.interactivity.modes.bubble.distance,mode_bubble_size:i.interactivity.modes.bubble.size,mode_repulse_distance:i.interactivity.modes.repulse.distance},i.fn.retinaInit=function(){i.retina_detect&&window.devicePixelRatio>1?(i.canvas.pxratio=window.devicePixelRatio,i.tmp.retina=!0):(i.canvas.pxratio=1,i.tmp.retina=!1),i.canvas.w=i.canvas.el.offsetWidth*i.canvas.pxratio,i.canvas.h=i.canvas.el.offsetHeight*i.canvas.pxratio,i.particles.size.value=i.tmp.obj.size_value*i.canvas.pxratio,i.particles.size.anim.speed=i.tmp.obj.size_anim_speed*i.canvas.pxratio,i.particles.move.speed=i.tmp.obj.move_speed*i.canvas.pxratio,i.particles.line_linked.distance=i.tmp.obj.line_linked_distance*i.canvas.pxratio,i.interactivity.modes.grab.distance=i.tmp.obj.mode_grab_distance*i.canvas.pxratio,i.interactivity.modes.bubble.distance=i.tmp.obj.mode_bubble_distance*i.canvas.pxratio,i.particles.line_linked.width=i.tmp.obj.line_linked_width*i.canvas.pxratio,i.interactivity.modes.bubble.size=i.tmp.obj.mode_bubble_size*i.canvas.pxratio,i.interactivity.modes.repulse.distance=i.tmp.obj.mode_repulse_distance*i.canvas.pxratio},i.fn.canvasInit=function(){i.canvas.ctx=i.canvas.el.getContext("2d")},i.fn.canvasSize=function(){i.canvas.el.width=i.canvas.w,i.canvas.el.height=i.canvas.h,i&&i.interactivity.events.resize&&window.addEventListener("resize",function(){i.canvas.w=i.canvas.el.offsetWidth,i.canvas.h=i.canvas.el.offsetHeight,i.tmp.retina&&(i.canvas.w*=i.canvas.pxratio,i.canvas.h*=i.canvas.pxratio),i.canvas.el.width=i.canvas.w,i.canvas.el.height=i.canvas.h,i.particles.move.enable||(i.fn.particlesEmpty(),i.fn.particlesCreate(),i.fn.particlesDraw(),i.fn.vendors.densityAutoParticles()),i.fn.vendors.densityAutoParticles()})},i.fn.canvasPaint=function(){i.canvas.ctx.fillRect(0,0,i.canvas.w,i.canvas.h)},i.fn.canvasClear=function(){i.canvas.ctx.clearRect(0,0,i.canvas.w,i.canvas.h)},i.fn.particle=function(e,a,t){if(this.radius=(i.particles.size.random?Math.random():1)*i.particles.size.value,i.particles.size.anim.enable&&(this.size_status=!1,this.vs=i.particles.size.anim.speed/100,i.particles.size.anim.sync||(this.vs=this.vs*Math.random())),this.x=t?t.x:Math.random()*i.canvas.w,this.y=t?t.y:Math.random()*i.canvas.h,this.x>i.canvas.w-2*this.radius?this.x=this.x-this.radius:this.x<2*this.radius&&(this.x=this.x+this.radius),this.y>i.canvas.h-2*this.radius?this.y=this.y-this.radius:this.y<2*this.radius&&(this.y=this.y+this.radius),i.particles.move.bounce&&i.fn.vendors.checkOverlap(this,t),this.color={},"object"==typeof e.value)if(e.value instanceof Array){var s=e.value[Math.floor(Math.random()*i.particles.color.value.length)];this.color.rgb=hexToRgb(s)}else void 0!=e.value.r&&void 0!=e.value.g&&void 0!=e.value.b&&(this.color.rgb={r:e.value.r,g:e.value.g,b:e.value.b}),void 0!=e.value.h&&void 0!=e.value.s&&void 0!=e.value.l&&(this.color.hsl={h:e.value.h,s:e.value.s,l:e.value.l});else"random"==e.value?this.color.rgb={r:Math.floor(256*Math.random())+0,g:Math.floor(256*Math.random())+0,b:Math.floor(256*Math.random())+0}:"string"==typeof e.value&&(this.color=e,this.color.rgb=hexToRgb(this.color.value));this.opacity=(i.particles.opacity.random?Math.random():1)*i.particles.opacity.value,i.particles.opacity.anim.enable&&(this.opacity_status=!1,this.vo=i.particles.opacity.anim.speed/100,i.particles.opacity.anim.sync||(this.vo=this.vo*Math.random()));var n={};switch(i.particles.move.direction){case"top":n={x:0,y:-1};break;case"top-right":n={x:.5,y:-.5};break;case"right":n={x:1,y:-0};break;case"bottom-right":n={x:.5,y:.5};break;case"bottom":n={x:0,y:1};break;case"bottom-left":n={x:-.5,y:1};break;case"left":n={x:-1,y:0};break;case"top-left":n={x:-.5,y:-.5};break;default:n={x:0,y:0}}i.particles.move.straight?(this.vx=n.x,this.vy=n.y,i.particles.move.random&&(this.vx=this.vx*Math.random(),this.vy=this.vy*Math.random())):(this.vx=n.x+Math.random()-.5,this.vy=n.y+Math.random()-.5),this.vx_i=this.vx,this.vy_i=this.vy;var r=i.particles.shape.type;if("object"==typeof r){if(r instanceof Array){var c=r[Math.floor(Math.random()*r.length)];this.shape=c}}else this.shape=r;if("image"==this.shape){var o=i.particles.shape;this.img={src:o.image.src,ratio:o.image.width/o.image.height},this.img.ratio||(this.img.ratio=1),"svg"==i.tmp.img_type&&void 0!=i.tmp.source_svg&&(i.fn.vendors.createSvgImg(this),i.tmp.pushing&&(this.img.loaded=!1))}},i.fn.particle.prototype.draw=function(){function e(){i.canvas.ctx.drawImage(r,a.x-t,a.y-t,2*t,2*t/a.img.ratio)}var a=this;if(void 0!=a.radius_bubble)var t=a.radius_bubble;else var t=a.radius;if(void 0!=a.opacity_bubble)var s=a.opacity_bubble;else var s=a.opacity;if(a.color.rgb)var n="rgba("+a.color.rgb.r+","+a.color.rgb.g+","+a.color.rgb.b+","+s+")";else var n="hsla("+a.color.hsl.h+","+a.color.hsl.s+"%,"+a.color.hsl.l+"%,"+s+")";switch(i.canvas.ctx.fillStyle=n,i.canvas.ctx.beginPath(),a.shape){case"circle":i.canvas.ctx.arc(a.x,a.y,t,0,2*Math.PI,!1);break;case"edge":i.canvas.ctx.rect(a.x-t,a.y-t,2*t,2*t);break;case"triangle":i.fn.vendors.drawShape(i.canvas.ctx,a.x-t,a.y+t/1.66,2*t,3,2);break;case"polygon":i.fn.vendors.drawShape(i.canvas.ctx,a.x-t/(i.particles.shape.polygon.nb_sides/3.5),a.y-t/.76,2.66*t/(i.particles.shape.polygon.nb_sides/3),i.particles.shape.polygon.nb_sides,1);break;case"star":i.fn.vendors.drawShape(i.canvas.ctx,a.x-2*t/(i.particles.shape.polygon.nb_sides/4),a.y-t/1.52,2*t*2.66/(i.particles.shape.polygon.nb_sides/3),i.particles.shape.polygon.nb_sides,2);break;case"image":if("svg"==i.tmp.img_type)var r=a.img.obj;else var r=i.tmp.img_obj;r&&e()}i.canvas.ctx.closePath(),i.particles.shape.stroke.width>0&&(i.canvas.ctx.strokeStyle=i.particles.shape.stroke.color,i.canvas.ctx.lineWidth=i.particles.shape.stroke.width,i.canvas.ctx.stroke()),i.canvas.ctx.fill()},i.fn.particlesCreate=function(){for(var e=0;e<i.particles.number.value;e++)i.particles.array.push(new i.fn.particle(i.particles.color,i.particles.opacit