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https://github.com/Decentralized-ID/decentralized-id.github.io.git
synced 2024-10-01 01:05:54 -04:00
158 lines
6.4 KiB
JavaScript
158 lines
6.4 KiB
JavaScript
// Kass's Customizable Node/Particles Title
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// settings:
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const canvasName = "did-canvas"
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var maxNodes = isOnMobileDevice() ? 20 : 40 // using too many will impact performance.
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const nodeMinSize = 3
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const nodeMaxSize = 4
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const nodeMinSpeed = 0.02
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const nodeMaxSpeed = 0.3
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const nodeMaxConnections = 20
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const connectionThickness = 2;
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const connectionDist = 102
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const connectionColor = "#0f477e"
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const nodeColors = ['#0f477e'] // you may enter multiple colors ["#65c665", "#40a040"]
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const warpEdges = false // if false nodes will bounce off the edges
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const useIcon = false // if false then colored circles will be used
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const iconPath = "https://image.flaticon.com/icons/png/128/137/137068.png"
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const iconScale = 6
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const useTrail = false
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const backgroundColor = "#222222"
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// another example can be found here https://codepen.io/cryptokass/pen/mgbajy?editors=0010
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// canvas reference:
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var canvas = document.getElementById(canvasName)
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var ctx = canvas.getContext('2d')
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// store canvas size:
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let canvasHeight = +getComputedStyle(canvas).getPropertyValue("height").slice(0, -2);
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let canvasWidth = +getComputedStyle(canvas).getPropertyValue("width").slice(0, -2);
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canvas.height = canvasHeight
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canvas.width = canvasWidth
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// setup image
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var img = new Image()
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img.src = iconPath
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// animation frame compatibility:
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window.requestAnimFrame = function()
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{
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return (
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window.requestAnimationFrame ||
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window.webkitRequestAnimationFrame ||
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window.mozRequestAnimationFrame ||
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window.oRequestAnimationFrame ||
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window.msRequestAnimationFrame ||
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function(callback) { window.setTimeout(callback, 1000 / 60) }
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);
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}();
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//mobile check
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function isOnMobileDevice() {
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var check = false;
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(function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera);
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return check;
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};
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// node class
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function Node(){
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this.size = nodeMinSize + Math.random() * (nodeMaxSize-nodeMinSize)
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this.x = canvasWidth * Math.random()
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this.y = canvasHeight * Math.random()
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this.color = nodeColors[Math.floor(Math.random()*nodeColors.length)]
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this.connections = 0
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// calculate starting velocity
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let speed = nodeMinSpeed + Math.random() * (nodeMaxSpeed-nodeMinSpeed)
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let theta = Math.random() * Math.PI * 2
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this.velocity = {x:speed * Math.sin(theta), y:speed * Math.cos(theta)}
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// move this node
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this.move = function(){
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if (this.x + this.velocity.x >= canvas.width || this.x + this.velocity.x <= 0){
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if (warpEdges){
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this.x = (this.x + this.velocity.x >= canvas.width ) ? 0 : canvas.width
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} else {
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this.velocity.x = -this.velocity.x
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}
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}
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if (this.y + this.velocity.y >= canvas.height || this.y + this.velocity.y <= 0)
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{
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if (warpEdges) {
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this.y = (this.y + this.velocity.y >= canvas.height ) ? 0 : canvas.height
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} else {
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this.velocity.y = -this.velocity.y
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}
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}
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this.x += this.velocity.x
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this.y += this.velocity.y
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this.connections = 0
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}
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// draw this nodes connections
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this.drawConnections = function(index){
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for (let i=index+1; i < nodes.length; i++){
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let node = nodes[i]
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let dist = Math.sqrt(Math.pow(this.x - node.x,2) + Math.pow(this.y - node.y,2))
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if (dist < connectionDist && node.connections < nodeMaxConnections && this.connections < nodeMaxConnections){
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ctx.globalAlpha = 1-dist/connectionDist
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ctx.beginPath()
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ctx.moveTo(this.x,this.y)
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ctx.lineTo(node.x, node.y)
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ctx.lineWidth = connectionThickness
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ctx.strokeStyle = connectionColor
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ctx.stroke()
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ctx.closePath()
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node.connections++
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this.connections++
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}
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}
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}
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this.draw = function(){
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ctx.globalAlpha = 1
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if (useIcon){
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let _size = this.size * iconScale
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let dx = this.x - _size/2
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let dy = this.y - _size/2
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ctx.drawImage(img, dx, dy, _size, _size)
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}else{
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ctx.beginPath()
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ctx.arc(this.x, this.y, this.size, 0, Math.PI * 2)
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ctx.fillStyle = this.color
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ctx.fill()
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ctx.closePath()
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}
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}
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}
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var nodes = []
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for (let i=0; i < maxNodes; i++){
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var node = new Node()
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nodes.push(node)
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}
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function tick(){
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if (useTrail){
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ctx.globalAlpha = 0.1
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ctx.rect(0,0,canvas.width, canvas.height)
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ctx.fillStyle = backgroundColor
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ctx.fill()
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}else{
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ctx.clearRect(0, 0, canvas.width, canvas.height)
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}
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for (let i=0; i < maxNodes; i++){
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nodes[i].drawConnections(i)
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}
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for (let i=0; i < maxNodes; i++){
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nodes[i].draw()
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nodes[i].move()
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}
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requestAnimFrame(tick);
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}
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requestAnimFrame(tick); |