1 line
5.8 KiB
JavaScript
1 line
5.8 KiB
JavaScript
function particles(){let e,t,i;!function(){"undefined"==typeof opacity?opacity=100:Number.isFinite(opacity)&&0<=opacity&&opacity<=100?opacity:(opacity=100,console.log("'opacity' must be a finite number between 0 and 100. Using default of '100'."));"undefined"==typeof numParticles?numParticles=10:Number.isFinite(numParticles)?numParticles:(numParticles=10,console.log("'numParticles' must be a finite number. Using default of '5'."));"undefined"==typeof sizeMultiplier?sizeMultiplier=5:Number.isFinite(sizeMultiplier)?sizeMultiplier:(sizeMultiplier=5,console.log("'sizeMultiplier' must be a finite number. Using default of '5'."));"undefined"==typeof width?width=1:Number.isInteger(width)&&width>0?width:(width=1,console.log("'width' must be an integer number of pixels greater than 0. Using default of '1'."));"undefined"==typeof connections?connections=!0:"boolean"==typeof connections?connections:(connections=!0,console.log("'connections' must be either 'true' or 'false'. Using default of 'true'."));"undefined"==typeof connectionDensity?connectionDensity=1/15*100:Number.isFinite(connectionDensity)&&connectionDensity>1?connectionDensity=1/connectionDensity*100:(connectionDensity=1/15*100,console.log("'connectionDensity' must be a finite number greater than 1. Using default of '15'."));"undefined"==typeof noBounceH?noBounceH=!1:"boolean"==typeof noBounceH?noBounceH:(noBounceH=!1,console.log("'noBounceH' must be either 'true' or 'false'. Using default of 'false'."));"undefined"==typeof noBounceV?noBounceV=!1:"boolean"==typeof noBounceV?noBounceV:(noBounceV=!1,console.log("'noBounceV' must be either 'true' or 'false'. Using default of 'false'."));"undefined"==typeof speed?speed=50:Number.isInteger(speed)&&0<=speed&&speed<=1e3?speed:(speed=50,console.log("'speed' must be an integer between 1-1000. Using default of '50'."));"undefined"==typeof speedH?speedH=1:Number.isInteger(speedH)&&-1e3<=speedH&&speedH<=1e3?(speedH,speed=1):(speedH=1,console.log("'speedH' must be an integer between -1000 and 1000. Using default of '1'."));"undefined"==typeof speedV?speedV=1:Number.isInteger(speedV)&&-1e3<=speedV&&speedV<=1e3?(speedV,speed=1):(speedV=1,console.log("'speedV' must be an integer between -1000 and 1000. Using default of '1'."));"undefined"==typeof avoidMouse?avoidMouse=!0:"boolean"==typeof avoidMouse?avoidMouse:(avoidMouse=!0,console.log("'avoidMouse' must be either 'true' or 'false'. Using default of 'true'."));"undefined"==typeof hover?hover=!0:"boolean"==typeof hover?hover:(hover=!0,console.log("'hover' must be either 'true' or 'false'. Using default of 'true'."))}(),function(){0===getComputedStyle(document.documentElement).getPropertyValue("--col-particle").length?(e="#000000",console.log("CSS variable '--col-particle' is not set. Using 'black' (#000000).")):e=getComputedStyle(document.documentElement).getPropertyValue("--col-particle");0===getComputedStyle(document.documentElement).getPropertyValue("--col-particle-stroke").length?(t="#000000",console.log("CSS variable '--col-particle-stroke' is not set. Using 'black' (#000000).")):t=getComputedStyle(document.documentElement).getPropertyValue("--col-particle-stroke");!0===hover&&0===getComputedStyle(document.documentElement).getPropertyValue("--col-particle-stroke-hover").length?(i="#ff0000",console.log("CSS variable '--col-particle-stroke-hover' is not set. Using 'red' (#ff0000).")):i=getComputedStyle(document.documentElement).getPropertyValue("--col-particle-stroke-hover")}();const n=document.getElementById("particles"),o=n.getContext("2d");let s;n.width=window.innerWidth,n.height=window.innerHeight,speed=0!==speed?speed/100:0,opacity/=100,n.style.opacity=opacity;let d={x:void 0,y:void 0,radius:n.height/80*(n.width/80)};window.addEventListener("mousemove",function(e){d.x=e.x,d.y=e.y});class l{constructor(e,t,i,n,o){this.x=e,this.y=t,this.directionX=i,this.directionY=n,this.size=o}draw(){o.beginPath(),o.arc(this.x,this.y,this.size,0,2*Math.PI,!1),o.fillStyle=e,o.fill()}update(){if(!0===noBounceH&&speedH>0?this.x>n.width&&(this.x=0):!0===noBounceH&&speedH<0?this.x<0&&(this.x=n.width):(this.x>n.width||this.x<0)&&(this.directionX=-this.directionX),!0===noBounceV&&speedV>0?this.y>n.height&&(this.y=0):!0===noBounceV&&speedV<0?this.y<0&&(this.y=n.height):(this.y>n.height||this.y<0)&&(this.directionY=-this.directionY),avoidMouse){let e=d.x-this.x,t=d.y-this.y;Math.sqrt(e*e+t*t)<d.radius+this.size&&(d.x<this.x&&this.x<n.width-10*this.size&&(this.x+=10),d.x>this.x&&this.x>10*this.size&&(this.x-=10),d.y<this.y&&this.y<n.height-10*this.size&&(this.y+=10),d.y>this.y&&this.y>10*this.size&&(this.y-=10))}0!==speed&&(this.x+=this.directionX*speed*speedH,this.y+=this.directionY*speed*speedV),this.draw()}}function r(){s=[];let e=.01*n.width;for(let t=0;t<e*numParticles;t++){let e=Math.random()*sizeMultiplier+1,t=Math.random()*(innerWidth-2*e-2*e)+2*e;noBounceH?directionX=5*Math.random():directionX=5*Math.random()-2.5;let i=Math.random()*(innerHeight-2*e-2*e)+2*e;noBounceV?directionY=5*Math.random():directionY=5*Math.random()-2.5,s.push(new l(t,i,directionX,directionY,e))}}window.addEventListener("resize",function(){n.width=innerWidth,n.height=innerHeight,d.radius=n.height/80*(n.width/80),r()}),window.addEventListener("mouseout",function(){d.x=void 0,d.y=void 0}),r(),function e(){requestAnimationFrame(e),o.clearRect(0,0,innerWidth,innerHeight);for(let e=0;e<s.length;e++)s[e].update();connections&&function(){let e=1;for(let l=0;l<s.length;l++)for(let r=l;r<s.length;r++){let c=(s[l].x-s[r].x)*(s[l].x-s[r].x)+(s[l].y-s[r].y)*(s[l].y-s[r].y);if(c<n.width/connectionDensity*(n.height/connectionDensity)){if(e=1-c/2e4,hover){let n=d.x-s[l].x,r=d.y-s[l].y;Math.sqrt(n*n+r*r)<200?(o.globalAlpha=e,o.strokeStyle=i):(o.globalAlpha=e,o.strokeStyle=t)}else o.globalAlpha=e,o.strokeStyle=t;o.lineWidth=width,o.beginPath(),o.moveTo(s[l].x,s[l].y),o.lineTo(s[r].x,s[r].y),o.stroke()}}}()}()} |