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1541 lines
42 KiB
1541 lines
42 KiB
/* ----------------------------------------------- |
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/* Author : Vincent Garreau - vincentgarreau.com |
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/* MIT license: http://opensource.org/licenses/MIT |
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/* Demo / Generator : vincentgarreau.com/particles.js |
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/* GitHub : github.com/VincentGarreau/particles.js |
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/* How to use? : Check the GitHub README |
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/* v2.0.0 |
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/* ----------------------------------------------- */ |
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var pJS = function(tag_id, params){ |
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var canvas_el = document.querySelector('#'+tag_id+' > .particles-js-canvas-el'); |
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/* particles.js variables with default values */ |
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this.pJS = { |
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canvas: { |
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el: canvas_el, |
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w: canvas_el.offsetWidth, |
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h: canvas_el.offsetHeight |
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}, |
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particles: { |
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number: { |
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value: 400, |
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density: { |
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enable: true, |
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value_area: 800 |
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} |
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}, |
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color: { |
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value: '#fff' |
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}, |
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shape: { |
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type: 'circle', |
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stroke: { |
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width: 0, |
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color: '#ff0000' |
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}, |
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polygon: { |
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nb_sides: 5 |
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}, |
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image: { |
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src: '', |
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width: 100, |
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height: 100 |
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} |
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}, |
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opacity: { |
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value: 1, |
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random: false, |
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anim: { |
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enable: false, |
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speed: 2, |
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opacity_min: 0, |
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sync: false |
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} |
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}, |
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size: { |
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value: 20, |
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random: false, |
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anim: { |
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enable: false, |
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speed: 20, |
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size_min: 0, |
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sync: false |
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} |
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}, |
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line_linked: { |
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enable: true, |
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distance: 100, |
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color: '#fff', |
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opacity: 1, |
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width: 1 |
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}, |
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move: { |
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enable: true, |
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speed: 2, |
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direction: 'none', |
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random: false, |
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straight: false, |
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out_mode: 'out', |
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bounce: false, |
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attract: { |
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enable: false, |
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rotateX: 3000, |
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rotateY: 3000 |
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} |
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}, |
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array: [] |
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}, |
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interactivity: { |
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detect_on: 'canvas', |
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events: { |
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onhover: { |
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enable: true, |
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mode: 'grab' |
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}, |
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onclick: { |
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enable: true, |
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mode: 'push' |
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}, |
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resize: true |
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}, |
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modes: { |
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grab:{ |
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distance: 100, |
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line_linked:{ |
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opacity: 1 |
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} |
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}, |
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bubble:{ |
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distance: 200, |
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size: 80, |
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duration: 0.7 |
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}, |
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repulse:{ |
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distance: 200, |
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duration: 0.4 |
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}, |
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push:{ |
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particles_nb: 4 |
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}, |
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remove:{ |
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particles_nb: 2 |
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} |
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}, |
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mouse:{} |
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}, |
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retina_detect: false, |
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fn: { |
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interact: {}, |
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modes: {}, |
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vendors:{} |
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}, |
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tmp: {} |
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}; |
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var pJS = this.pJS; |
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/* params settings */ |
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if(params){ |
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Object.deepExtend(pJS, params); |
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} |
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pJS.tmp.obj = { |
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size_value: pJS.particles.size.value, |
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size_anim_speed: pJS.particles.size.anim.speed, |
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move_speed: pJS.particles.move.speed, |
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line_linked_distance: pJS.particles.line_linked.distance, |
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line_linked_width: pJS.particles.line_linked.width, |
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mode_grab_distance: pJS.interactivity.modes.grab.distance, |
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mode_bubble_distance: pJS.interactivity.modes.bubble.distance, |
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mode_bubble_size: pJS.interactivity.modes.bubble.size, |
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mode_repulse_distance: pJS.interactivity.modes.repulse.distance |
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}; |
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pJS.fn.retinaInit = function(){ |
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if(pJS.retina_detect && window.devicePixelRatio > 1){ |
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pJS.canvas.pxratio = window.devicePixelRatio; |
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pJS.tmp.retina = true; |
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} |
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else{ |
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pJS.canvas.pxratio = 1; |
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pJS.tmp.retina = false; |
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} |
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pJS.canvas.w = pJS.canvas.el.offsetWidth * pJS.canvas.pxratio; |
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pJS.canvas.h = pJS.canvas.el.offsetHeight * pJS.canvas.pxratio; |
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pJS.particles.size.value = pJS.tmp.obj.size_value * pJS.canvas.pxratio; |
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pJS.particles.size.anim.speed = pJS.tmp.obj.size_anim_speed * pJS.canvas.pxratio; |
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pJS.particles.move.speed = pJS.tmp.obj.move_speed * pJS.canvas.pxratio; |
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pJS.particles.line_linked.distance = pJS.tmp.obj.line_linked_distance * pJS.canvas.pxratio; |
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pJS.interactivity.modes.grab.distance = pJS.tmp.obj.mode_grab_distance * pJS.canvas.pxratio; |
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pJS.interactivity.modes.bubble.distance = pJS.tmp.obj.mode_bubble_distance * pJS.canvas.pxratio; |
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pJS.particles.line_linked.width = pJS.tmp.obj.line_linked_width * pJS.canvas.pxratio; |
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pJS.interactivity.modes.bubble.size = pJS.tmp.obj.mode_bubble_size * pJS.canvas.pxratio; |
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pJS.interactivity.modes.repulse.distance = pJS.tmp.obj.mode_repulse_distance * pJS.canvas.pxratio; |
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}; |
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/* ---------- pJS functions - canvas ------------ */ |
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pJS.fn.canvasInit = function(){ |
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pJS.canvas.ctx = pJS.canvas.el.getContext('2d'); |
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}; |
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pJS.fn.canvasSize = function(){ |
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pJS.canvas.el.width = pJS.canvas.w; |
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pJS.canvas.el.height = pJS.canvas.h; |
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if(pJS && pJS.interactivity.events.resize){ |
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window.addEventListener('resize', function(){ |
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pJS.canvas.w = pJS.canvas.el.offsetWidth; |
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pJS.canvas.h = pJS.canvas.el.offsetHeight; |
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/* resize canvas */ |
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if(pJS.tmp.retina){ |
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pJS.canvas.w *= pJS.canvas.pxratio; |
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pJS.canvas.h *= pJS.canvas.pxratio; |
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} |
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pJS.canvas.el.width = pJS.canvas.w; |
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pJS.canvas.el.height = pJS.canvas.h; |
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/* repaint canvas on anim disabled */ |
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if(!pJS.particles.move.enable){ |
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pJS.fn.particlesEmpty(); |
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pJS.fn.particlesCreate(); |
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pJS.fn.particlesDraw(); |
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pJS.fn.vendors.densityAutoParticles(); |
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} |
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/* density particles enabled */ |
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pJS.fn.vendors.densityAutoParticles(); |
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}); |
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} |
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}; |
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pJS.fn.canvasPaint = function(){ |
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pJS.canvas.ctx.fillRect(0, 0, pJS.canvas.w, pJS.canvas.h); |
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}; |
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pJS.fn.canvasClear = function(){ |
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pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h); |
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}; |
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/* --------- pJS functions - particles ----------- */ |
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pJS.fn.particle = function(color, opacity, position){ |
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/* size */ |
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this.radius = (pJS.particles.size.random ? Math.random() : 1) * pJS.particles.size.value; |
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if(pJS.particles.size.anim.enable){ |
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this.size_status = false; |
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this.vs = pJS.particles.size.anim.speed / 100; |
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if(!pJS.particles.size.anim.sync){ |
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this.vs = this.vs * Math.random(); |
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} |
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} |
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/* position */ |
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this.x = position ? position.x : Math.random() * pJS.canvas.w; |
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this.y = position ? position.y : Math.random() * pJS.canvas.h; |
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/* check position - into the canvas */ |
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if(this.x > pJS.canvas.w - this.radius*2) this.x = this.x - this.radius; |
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else if(this.x < this.radius*2) this.x = this.x + this.radius; |
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if(this.y > pJS.canvas.h - this.radius*2) this.y = this.y - this.radius; |
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else if(this.y < this.radius*2) this.y = this.y + this.radius; |
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/* check position - avoid overlap */ |
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if(pJS.particles.move.bounce){ |
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pJS.fn.vendors.checkOverlap(this, position); |
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} |
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/* color */ |
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this.color = {}; |
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if(typeof(color.value) == 'object'){ |
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if(color.value instanceof Array){ |
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var color_selected = color.value[Math.floor(Math.random() * pJS.particles.color.value.length)]; |
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this.color.rgb = hexToRgb(color_selected); |
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}else{ |
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if(color.value.r != undefined && color.value.g != undefined && color.value.b != undefined){ |
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this.color.rgb = { |
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r: color.value.r, |
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g: color.value.g, |
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b: color.value.b |
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} |
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} |
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if(color.value.h != undefined && color.value.s != undefined && color.value.l != undefined){ |
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this.color.hsl = { |
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h: color.value.h, |
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s: color.value.s, |
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l: color.value.l |
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} |
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} |
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} |
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} |
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else if(color.value == 'random'){ |
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this.color.rgb = { |
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r: (Math.floor(Math.random() * (255 - 0 + 1)) + 0), |
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g: (Math.floor(Math.random() * (255 - 0 + 1)) + 0), |
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b: (Math.floor(Math.random() * (255 - 0 + 1)) + 0) |
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} |
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} |
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else if(typeof(color.value) == 'string'){ |
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this.color = color; |
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this.color.rgb = hexToRgb(this.color.value); |
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} |
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/* opacity */ |
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this.opacity = (pJS.particles.opacity.random ? Math.random() : 1) * pJS.particles.opacity.value; |
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if(pJS.particles.opacity.anim.enable){ |
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this.opacity_status = false; |
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this.vo = pJS.particles.opacity.anim.speed / 100; |
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if(!pJS.particles.opacity.anim.sync){ |
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this.vo = this.vo * Math.random(); |
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} |
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} |
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/* animation - velocity for speed */ |
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var velbase = {} |
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switch(pJS.particles.move.direction){ |
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case 'top': |
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velbase = { x:0, y:-1 }; |
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break; |
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case 'top-right': |
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velbase = { x:0.5, y:-0.5 }; |
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break; |
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case 'right': |
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velbase = { x:1, y:-0 }; |
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break; |
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case 'bottom-right': |
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velbase = { x:0.5, y:0.5 }; |
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break; |
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case 'bottom': |
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velbase = { x:0, y:1 }; |
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break; |
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case 'bottom-left': |
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velbase = { x:-0.5, y:1 }; |
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break; |
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case 'left': |
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velbase = { x:-1, y:0 }; |
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break; |
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case 'top-left': |
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velbase = { x:-0.5, y:-0.5 }; |
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break; |
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default: |
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velbase = { x:0, y:0 }; |
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break; |
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} |
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if(pJS.particles.move.straight){ |
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this.vx = velbase.x; |
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this.vy = velbase.y; |
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if(pJS.particles.move.random){ |
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this.vx = this.vx * (Math.random()); |
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this.vy = this.vy * (Math.random()); |
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} |
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}else{ |
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this.vx = velbase.x + Math.random()-0.5; |
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this.vy = velbase.y + Math.random()-0.5; |
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} |
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// var theta = 2.0 * Math.PI * Math.random(); |
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// this.vx = Math.cos(theta); |
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// this.vy = Math.sin(theta); |
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this.vx_i = this.vx; |
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this.vy_i = this.vy; |
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/* if shape is image */ |
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var shape_type = pJS.particles.shape.type; |
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if(typeof(shape_type) == 'object'){ |
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if(shape_type instanceof Array){ |
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var shape_selected = shape_type[Math.floor(Math.random() * shape_type.length)]; |
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this.shape = shape_selected; |
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} |
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}else{ |
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this.shape = shape_type; |
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} |
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if(this.shape == 'image'){ |
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var sh = pJS.particles.shape; |
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this.img = { |
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src: sh.image.src, |
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ratio: sh.image.width / sh.image.height |
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} |
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if(!this.img.ratio) this.img.ratio = 1; |
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if(pJS.tmp.img_type == 'svg' && pJS.tmp.source_svg != undefined){ |
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pJS.fn.vendors.createSvgImg(this); |
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if(pJS.tmp.pushing){ |
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this.img.loaded = false; |
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} |
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} |
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} |
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}; |
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pJS.fn.particle.prototype.draw = function() { |
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var p = this; |
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if(p.radius_bubble != undefined){ |
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var radius = p.radius_bubble; |
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}else{ |
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var radius = p.radius; |
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} |
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if(p.opacity_bubble != undefined){ |
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var opacity = p.opacity_bubble; |
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}else{ |
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var opacity = p.opacity; |
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} |
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if(p.color.rgb){ |
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var color_value = 'rgba('+p.color.rgb.r+','+p.color.rgb.g+','+p.color.rgb.b+','+opacity+')'; |
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}else{ |
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var color_value = 'hsla('+p.color.hsl.h+','+p.color.hsl.s+'%,'+p.color.hsl.l+'%,'+opacity+')'; |
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} |
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pJS.canvas.ctx.fillStyle = color_value; |
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pJS.canvas.ctx.beginPath(); |
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switch(p.shape){ |
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case 'circle': |
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pJS.canvas.ctx.arc(p.x, p.y, radius, 0, Math.PI * 2, false); |
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break; |
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case 'edge': |
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pJS.canvas.ctx.rect(p.x-radius, p.y-radius, radius*2, radius*2); |
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break; |
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case 'triangle': |
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pJS.fn.vendors.drawShape(pJS.canvas.ctx, p.x-radius, p.y+radius / 1.66, radius*2, 3, 2); |
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break; |
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case 'polygon': |
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pJS.fn.vendors.drawShape( |
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pJS.canvas.ctx, |
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p.x - radius / (pJS.particles.shape.polygon.nb_sides/3.5), // startX |
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p.y - radius / (2.66/3.5), // startY |
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radius*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength |
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pJS.particles.shape.polygon.nb_sides, // sideCountNumerator |
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1 // sideCountDenominator |
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); |
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break; |
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case 'star': |
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pJS.fn.vendors.drawShape( |
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pJS.canvas.ctx, |
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p.x - radius*2 / (pJS.particles.shape.polygon.nb_sides/4), // startX |
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p.y - radius / (2*2.66/3.5), // startY |
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radius*2*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength |
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pJS.particles.shape.polygon.nb_sides, // sideCountNumerator |
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2 // sideCountDenominator |
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); |
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break; |
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case 'image': |
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function draw(){ |
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pJS.canvas.ctx.drawImage( |
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img_obj, |
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p.x-radius, |
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p.y-radius, |
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radius*2, |
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radius*2 / p.img.ratio |
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); |
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} |
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if(pJS.tmp.img_type == 'svg'){ |
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var img_obj = p.img.obj; |
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}else{ |
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var img_obj = pJS.tmp.img_obj; |
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} |
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if(img_obj){ |
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draw(); |
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} |
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break; |
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} |
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pJS.canvas.ctx.closePath(); |
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if(pJS.particles.shape.stroke.width > 0){ |
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pJS.canvas.ctx.strokeStyle = pJS.particles.shape.stroke.color; |
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pJS.canvas.ctx.lineWidth = pJS.particles.shape.stroke.width; |
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pJS.canvas.ctx.stroke(); |
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} |
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pJS.canvas.ctx.fill(); |
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}; |
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pJS.fn.particlesCreate = function(){ |
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for(var i = 0; i < pJS.particles.number.value; i++) { |
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pJS.particles.array.push(new pJS.fn.particle(pJS.particles.color, pJS.particles.opacity.value)); |
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} |
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}; |
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pJS.fn.particlesUpdate = function(){ |
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for(var i = 0; i < pJS.particles.array.length; i++){ |
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/* the particle */ |
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var p = pJS.particles.array[i]; |
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// var d = ( dx = pJS.interactivity.mouse.click_pos_x - p.x ) * dx + ( dy = pJS.interactivity.mouse.click_pos_y - p.y ) * dy; |
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// var f = -BANG_SIZE / d; |
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// if ( d < BANG_SIZE ) { |
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// var t = Math.atan2( dy, dx ); |
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// p.vx = f * Math.cos(t); |
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// p.vy = f * Math.sin(t); |
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// } |
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|
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/* move the particle */ |
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if(pJS.particles.move.enable){ |
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var ms = pJS.particles.move.speed/2; |
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p.x += p.vx * ms; |
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p.y += p.vy * ms; |
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} |
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|
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/* change opacity status */ |
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if(pJS.particles.opacity.anim.enable) { |
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if(p.opacity_status == true) { |
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if(p.opacity >= pJS.particles.opacity.value) p.opacity_status = false; |
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p.opacity += p.vo; |
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}else { |
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if(p.opacity <= pJS.particles.opacity.anim.opacity_min) p.opacity_status = true; |
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p.opacity -= p.vo; |
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} |
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if(p.opacity < 0) p.opacity = 0; |
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} |
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|
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/* change size */ |
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if(pJS.particles.size.anim.enable){ |
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if(p.size_status == true){ |
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if(p.radius >= pJS.particles.size.value) p.size_status = false; |
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p.radius += p.vs; |
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}else{ |
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if(p.radius <= pJS.particles.size.anim.size_min) p.size_status = true; |
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p.radius -= p.vs; |
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} |
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if(p.radius < 0) p.radius = 0; |
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} |
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|
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/* change particle position if it is out of canvas */ |
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if(pJS.particles.move.out_mode == 'bounce'){ |
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var new_pos = { |
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x_left: p.radius, |
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x_right: pJS.canvas.w, |
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y_top: p.radius, |
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y_bottom: pJS.canvas.h |
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} |
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}else{ |
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var new_pos = { |
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x_left: -p.radius, |
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x_right: pJS.canvas.w + p.radius, |
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y_top: -p.radius, |
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y_bottom: pJS.canvas.h + p.radius |
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} |
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} |
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|
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if(p.x - p.radius > pJS.canvas.w){ |
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p.x = new_pos.x_left; |
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p.y = Math.random() * pJS.canvas.h; |
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} |
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else if(p.x + p.radius < 0){ |
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p.x = new_pos.x_right; |
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p.y = Math.random() * pJS.canvas.h; |
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} |
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if(p.y - p.radius > pJS.canvas.h){ |
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p.y = new_pos.y_top; |
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p.x = Math.random() * pJS.canvas.w; |
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} |
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else if(p.y + p.radius < 0){ |
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p.y = new_pos.y_bottom; |
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p.x = Math.random() * pJS.canvas.w; |
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} |
|
|
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/* out of canvas modes */ |
|
switch(pJS.particles.move.out_mode){ |
|
case 'bounce': |
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if (p.x + p.radius > pJS.canvas.w) p.vx = -p.vx; |
|
else if (p.x - p.radius < 0) p.vx = -p.vx; |
|
if (p.y + p.radius > pJS.canvas.h) p.vy = -p.vy; |
|
else if (p.y - p.radius < 0) p.vy = -p.vy; |
|
break; |
|
} |
|
|
|
/* events */ |
|
if(isInArray('grab', pJS.interactivity.events.onhover.mode)){ |
|
pJS.fn.modes.grabParticle(p); |
|
} |
|
|
|
if(isInArray('bubble', pJS.interactivity.events.onhover.mode) || isInArray('bubble', pJS.interactivity.events.onclick.mode)){ |
|
pJS.fn.modes.bubbleParticle(p); |
|
} |
|
|
|
if(isInArray('repulse', pJS.interactivity.events.onhover.mode) || isInArray('repulse', pJS.interactivity.events.onclick.mode)){ |
|
pJS.fn.modes.repulseParticle(p); |
|
} |
|
|
|
/* interaction auto between particles */ |
|
if(pJS.particles.line_linked.enable || pJS.particles.move.attract.enable){ |
|
for(var j = i + 1; j < pJS.particles.array.length; j++){ |
|
var p2 = pJS.particles.array[j]; |
|
|
|
/* link particles */ |
|
if(pJS.particles.line_linked.enable){ |
|
pJS.fn.interact.linkParticles(p,p2); |
|
} |
|
|
|
/* attract particles */ |
|
if(pJS.particles.move.attract.enable){ |
|
pJS.fn.interact.attractParticles(p,p2); |
|
} |
|
|
|
/* bounce particles */ |
|
if(pJS.particles.move.bounce){ |
|
pJS.fn.interact.bounceParticles(p,p2); |
|
} |
|
|
|
} |
|
} |
|
|
|
|
|
} |
|
|
|
}; |
|
|
|
pJS.fn.particlesDraw = function(){ |
|
|
|
/* clear canvas */ |
|
pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h); |
|
|
|
/* update each particles param */ |
|
pJS.fn.particlesUpdate(); |
|
|
|
/* draw each particle */ |
|
for(var i = 0; i < pJS.particles.array.length; i++){ |
|
var p = pJS.particles.array[i]; |
|
p.draw(); |
|
} |
|
|
|
}; |
|
|
|
pJS.fn.particlesEmpty = function(){ |
|
pJS.particles.array = []; |
|
}; |
|
|
|
pJS.fn.particlesRefresh = function(){ |
|
|
|
/* init all */ |
|
cancelRequestAnimFrame(pJS.fn.checkAnimFrame); |
|
cancelRequestAnimFrame(pJS.fn.drawAnimFrame); |
|
pJS.tmp.source_svg = undefined; |
|
pJS.tmp.img_obj = undefined; |
|
pJS.tmp.count_svg = 0; |
|
pJS.fn.particlesEmpty(); |
|
pJS.fn.canvasClear(); |
|
|
|
/* restart */ |
|
pJS.fn.vendors.start(); |
|
|
|
}; |
|
|
|
|
|
/* ---------- pJS functions - particles interaction ------------ */ |
|
|
|
pJS.fn.interact.linkParticles = function(p1, p2){ |
|
|
|
var dx = p1.x - p2.x, |
|
dy = p1.y - p2.y, |
|
dist = Math.sqrt(dx*dx + dy*dy); |
|
|
|
/* draw a line between p1 and p2 if the distance between them is under the config distance */ |
|
if(dist <= pJS.particles.line_linked.distance){ |
|
|
|
var opacity_line = pJS.particles.line_linked.opacity - (dist / (1/pJS.particles.line_linked.opacity)) / pJS.particles.line_linked.distance; |
|
|
|
if(opacity_line > 0){ |
|
|
|
/* style */ |
|
var color_line = pJS.particles.line_linked.color_rgb_line; |
|
pJS.canvas.ctx.strokeStyle = 'rgba('+color_line.r+','+color_line.g+','+color_line.b+','+opacity_line+')'; |
|
pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width; |
|
//pJS.canvas.ctx.lineCap = 'round'; /* performance issue */ |
|
|
|
/* path */ |
|
pJS.canvas.ctx.beginPath(); |
|
pJS.canvas.ctx.moveTo(p1.x, p1.y); |
|
pJS.canvas.ctx.lineTo(p2.x, p2.y); |
|
pJS.canvas.ctx.stroke(); |
|
pJS.canvas.ctx.closePath(); |
|
|
|
} |
|
|
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.interact.attractParticles = function(p1, p2){ |
|
|
|
/* condensed particles */ |
|
var dx = p1.x - p2.x, |
|
dy = p1.y - p2.y, |
|
dist = Math.sqrt(dx*dx + dy*dy); |
|
|
|
if(dist <= pJS.particles.line_linked.distance){ |
|
|
|
var ax = dx/(pJS.particles.move.attract.rotateX*1000), |
|
ay = dy/(pJS.particles.move.attract.rotateY*1000); |
|
|
|
p1.vx -= ax; |
|
p1.vy -= ay; |
|
|
|
p2.vx += ax; |
|
p2.vy += ay; |
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
pJS.fn.interact.bounceParticles = function(p1, p2){ |
|
|
|
var dx = p1.x - p2.x, |
|
dy = p1.y - p2.y, |
|
dist = Math.sqrt(dx*dx + dy*dy), |
|
dist_p = p1.radius+p2.radius; |
|
|
|
if(dist <= dist_p){ |
|
p1.vx = -p1.vx; |
|
p1.vy = -p1.vy; |
|
|
|
p2.vx = -p2.vx; |
|
p2.vy = -p2.vy; |
|
} |
|
|
|
} |
|
|
|
|
|
/* ---------- pJS functions - modes events ------------ */ |
|
|
|
pJS.fn.modes.pushParticles = function(nb, pos){ |
|
|
|
pJS.tmp.pushing = true; |
|
|
|
for(var i = 0; i < nb; i++){ |
|
pJS.particles.array.push( |
|
new pJS.fn.particle( |
|
pJS.particles.color, |
|
pJS.particles.opacity.value, |
|
{ |
|
'x': pos ? pos.pos_x : Math.random() * pJS.canvas.w, |
|
'y': pos ? pos.pos_y : Math.random() * pJS.canvas.h |
|
} |
|
) |
|
) |
|
if(i == nb-1){ |
|
if(!pJS.particles.move.enable){ |
|
pJS.fn.particlesDraw(); |
|
} |
|
pJS.tmp.pushing = false; |
|
} |
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.modes.removeParticles = function(nb){ |
|
|
|
pJS.particles.array.splice(0, nb); |
|
if(!pJS.particles.move.enable){ |
|
pJS.fn.particlesDraw(); |
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.modes.bubbleParticle = function(p){ |
|
|
|
/* on hover event */ |
|
if(pJS.interactivity.events.onhover.enable && isInArray('bubble', pJS.interactivity.events.onhover.mode)){ |
|
|
|
var dx_mouse = p.x - pJS.interactivity.mouse.pos_x, |
|
dy_mouse = p.y - pJS.interactivity.mouse.pos_y, |
|
dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse), |
|
ratio = 1 - dist_mouse / pJS.interactivity.modes.bubble.distance; |
|
|
|
function init(){ |
|
p.opacity_bubble = p.opacity; |
|
p.radius_bubble = p.radius; |
|
} |
|
|
|
/* mousemove - check ratio */ |
|
if(dist_mouse <= pJS.interactivity.modes.bubble.distance){ |
|
|
|
if(ratio >= 0 && pJS.interactivity.status == 'mousemove'){ |
|
|
|
/* size */ |
|
if(pJS.interactivity.modes.bubble.size != pJS.particles.size.value){ |
|
|
|
if(pJS.interactivity.modes.bubble.size > pJS.particles.size.value){ |
|
var size = p.radius + (pJS.interactivity.modes.bubble.size*ratio); |
|
if(size >= 0){ |
|
p.radius_bubble = size; |
|
} |
|
}else{ |
|
var dif = p.radius - pJS.interactivity.modes.bubble.size, |
|
size = p.radius - (dif*ratio); |
|
if(size > 0){ |
|
p.radius_bubble = size; |
|
}else{ |
|
p.radius_bubble = 0; |
|
} |
|
} |
|
|
|
} |
|
|
|
/* opacity */ |
|
if(pJS.interactivity.modes.bubble.opacity != pJS.particles.opacity.value){ |
|
|
|
if(pJS.interactivity.modes.bubble.opacity > pJS.particles.opacity.value){ |
|
var opacity = pJS.interactivity.modes.bubble.opacity*ratio; |
|
if(opacity > p.opacity && opacity <= pJS.interactivity.modes.bubble.opacity){ |
|
p.opacity_bubble = opacity; |
|
} |
|
}else{ |
|
var opacity = p.opacity - (pJS.particles.opacity.value-pJS.interactivity.modes.bubble.opacity)*ratio; |
|
if(opacity < p.opacity && opacity >= pJS.interactivity.modes.bubble.opacity){ |
|
p.opacity_bubble = opacity; |
|
} |
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
}else{ |
|
init(); |
|
} |
|
|
|
|
|
/* mouseleave */ |
|
if(pJS.interactivity.status == 'mouseleave'){ |
|
init(); |
|
} |
|
|
|
} |
|
|
|
/* on click event */ |
|
else if(pJS.interactivity.events.onclick.enable && isInArray('bubble', pJS.interactivity.events.onclick.mode)){ |
|
|
|
|
|
if(pJS.tmp.bubble_clicking){ |
|
var dx_mouse = p.x - pJS.interactivity.mouse.click_pos_x, |
|
dy_mouse = p.y - pJS.interactivity.mouse.click_pos_y, |
|
dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse), |
|
time_spent = (new Date().getTime() - pJS.interactivity.mouse.click_time)/1000; |
|
|
|
if(time_spent > pJS.interactivity.modes.bubble.duration){ |
|
pJS.tmp.bubble_duration_end = true; |
|
} |
|
|
|
if(time_spent > pJS.interactivity.modes.bubble.duration*2){ |
|
pJS.tmp.bubble_clicking = false; |
|
pJS.tmp.bubble_duration_end = false; |
|
} |
|
} |
|
|
|
|
|
function process(bubble_param, particles_param, p_obj_bubble, p_obj, id){ |
|
|
|
if(bubble_param != particles_param){ |
|
|
|
if(!pJS.tmp.bubble_duration_end){ |
|
if(dist_mouse <= pJS.interactivity.modes.bubble.distance){ |
|
if(p_obj_bubble != undefined) var obj = p_obj_bubble; |
|
else var obj = p_obj; |
|
if(obj != bubble_param){ |
|
var value = p_obj - (time_spent * (p_obj - bubble_param) / pJS.interactivity.modes.bubble.duration); |
|
if(id == 'size') p.radius_bubble = value; |
|
if(id == 'opacity') p.opacity_bubble = value; |
|
} |
|
}else{ |
|
if(id == 'size') p.radius_bubble = undefined; |
|
if(id == 'opacity') p.opacity_bubble = undefined; |
|
} |
|
}else{ |
|
if(p_obj_bubble != undefined){ |
|
var value_tmp = p_obj - (time_spent * (p_obj - bubble_param) / pJS.interactivity.modes.bubble.duration), |
|
dif = bubble_param - value_tmp; |
|
value = bubble_param + dif; |
|
if(id == 'size') p.radius_bubble = value; |
|
if(id == 'opacity') p.opacity_bubble = value; |
|
} |
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
if(pJS.tmp.bubble_clicking){ |
|
/* size */ |
|
process(pJS.interactivity.modes.bubble.size, pJS.particles.size.value, p.radius_bubble, p.radius, 'size'); |
|
/* opacity */ |
|
process(pJS.interactivity.modes.bubble.opacity, pJS.particles.opacity.value, p.opacity_bubble, p.opacity, 'opacity'); |
|
} |
|
|
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.modes.repulseParticle = function(p){ |
|
|
|
if(pJS.interactivity.events.onhover.enable && isInArray('repulse', pJS.interactivity.events.onhover.mode) && pJS.interactivity.status == 'mousemove') { |
|
|
|
var dx_mouse = p.x - pJS.interactivity.mouse.pos_x, |
|
dy_mouse = p.y - pJS.interactivity.mouse.pos_y, |
|
dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse); |
|
|
|
var normVec = {x: dx_mouse/dist_mouse, y: dy_mouse/dist_mouse}, |
|
repulseRadius = pJS.interactivity.modes.repulse.distance, |
|
velocity = 100, |
|
repulseFactor = clamp((1/repulseRadius)*(-1*Math.pow(dist_mouse/repulseRadius,2)+1)*repulseRadius*velocity, 0, 50); |
|
|
|
var pos = { |
|
x: p.x + normVec.x * repulseFactor, |
|
y: p.y + normVec.y * repulseFactor |
|
} |
|
|
|
if(pJS.particles.move.out_mode == 'bounce'){ |
|
if(pos.x - p.radius > 0 && pos.x + p.radius < pJS.canvas.w) p.x = pos.x; |
|
if(pos.y - p.radius > 0 && pos.y + p.radius < pJS.canvas.h) p.y = pos.y; |
|
}else{ |
|
p.x = pos.x; |
|
p.y = pos.y; |
|
} |
|
|
|
} |
|
|
|
|
|
else if(pJS.interactivity.events.onclick.enable && isInArray('repulse', pJS.interactivity.events.onclick.mode)) { |
|
|
|
if(!pJS.tmp.repulse_finish){ |
|
pJS.tmp.repulse_count++; |
|
if(pJS.tmp.repulse_count == pJS.particles.array.length){ |
|
pJS.tmp.repulse_finish = true; |
|
} |
|
} |
|
|
|
if(pJS.tmp.repulse_clicking){ |
|
|
|
var repulseRadius = Math.pow(pJS.interactivity.modes.repulse.distance/6, 3); |
|
|
|
var dx = pJS.interactivity.mouse.click_pos_x - p.x, |
|
dy = pJS.interactivity.mouse.click_pos_y - p.y, |
|
d = dx*dx + dy*dy; |
|
|
|
var force = -repulseRadius / d * 1; |
|
|
|
function process(){ |
|
|
|
var f = Math.atan2(dy,dx); |
|
p.vx = force * Math.cos(f); |
|
p.vy = force * Math.sin(f); |
|
|
|
if(pJS.particles.move.out_mode == 'bounce'){ |
|
var pos = { |
|
x: p.x + p.vx, |
|
y: p.y + p.vy |
|
} |
|
if (pos.x + p.radius > pJS.canvas.w) p.vx = -p.vx; |
|
else if (pos.x - p.radius < 0) p.vx = -p.vx; |
|
if (pos.y + p.radius > pJS.canvas.h) p.vy = -p.vy; |
|
else if (pos.y - p.radius < 0) p.vy = -p.vy; |
|
} |
|
|
|
} |
|
|
|
// default |
|
if(d <= repulseRadius){ |
|
process(); |
|
} |
|
|
|
// bang - slow motion mode |
|
// if(!pJS.tmp.repulse_finish){ |
|
// if(d <= repulseRadius){ |
|
// process(); |
|
// } |
|
// }else{ |
|
// process(); |
|
// } |
|
|
|
|
|
}else{ |
|
|
|
if(pJS.tmp.repulse_clicking == false){ |
|
|
|
p.vx = p.vx_i; |
|
p.vy = p.vy_i; |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
pJS.fn.modes.grabParticle = function(p){ |
|
|
|
if(pJS.interactivity.events.onhover.enable && pJS.interactivity.status == 'mousemove'){ |
|
|
|
var dx_mouse = p.x - pJS.interactivity.mouse.pos_x, |
|
dy_mouse = p.y - pJS.interactivity.mouse.pos_y, |
|
dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse); |
|
|
|
/* draw a line between the cursor and the particle if the distance between them is under the config distance */ |
|
if(dist_mouse <= pJS.interactivity.modes.grab.distance){ |
|
|
|
var opacity_line = pJS.interactivity.modes.grab.line_linked.opacity - (dist_mouse / (1/pJS.interactivity.modes.grab.line_linked.opacity)) / pJS.interactivity.modes.grab.distance; |
|
|
|
if(opacity_line > 0){ |
|
|
|
/* style */ |
|
var color_line = pJS.particles.line_linked.color_rgb_line; |
|
pJS.canvas.ctx.strokeStyle = 'rgba('+color_line.r+','+color_line.g+','+color_line.b+','+opacity_line+')'; |
|
pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width; |
|
//pJS.canvas.ctx.lineCap = 'round'; /* performance issue */ |
|
|
|
/* path */ |
|
pJS.canvas.ctx.beginPath(); |
|
pJS.canvas.ctx.moveTo(p.x, p.y); |
|
pJS.canvas.ctx.lineTo(pJS.interactivity.mouse.pos_x, pJS.interactivity.mouse.pos_y); |
|
pJS.canvas.ctx.stroke(); |
|
pJS.canvas.ctx.closePath(); |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
}; |
|
|
|
|
|
|
|
/* ---------- pJS functions - vendors ------------ */ |
|
|
|
pJS.fn.vendors.eventsListeners = function(){ |
|
|
|
/* events target element */ |
|
if(pJS.interactivity.detect_on == 'window'){ |
|
pJS.interactivity.el = window; |
|
}else{ |
|
pJS.interactivity.el = pJS.canvas.el; |
|
} |
|
|
|
|
|
/* detect mouse pos - on hover / click event */ |
|
if(pJS.interactivity.events.onhover.enable || pJS.interactivity.events.onclick.enable){ |
|
|
|
/* el on mousemove */ |
|
pJS.interactivity.el.addEventListener('mousemove', function(e){ |
|
|
|
if(pJS.interactivity.el == window){ |
|
var pos_x = e.clientX, |
|
pos_y = e.clientY; |
|
} |
|
else{ |
|
var pos_x = e.offsetX || e.clientX, |
|
pos_y = e.offsetY || e.clientY; |
|
} |
|
|
|
pJS.interactivity.mouse.pos_x = pos_x; |
|
pJS.interactivity.mouse.pos_y = pos_y; |
|
|
|
if(pJS.tmp.retina){ |
|
pJS.interactivity.mouse.pos_x *= pJS.canvas.pxratio; |
|
pJS.interactivity.mouse.pos_y *= pJS.canvas.pxratio; |
|
} |
|
|
|
pJS.interactivity.status = 'mousemove'; |
|
|
|
}); |
|
|
|
/* el on onmouseleave */ |
|
pJS.interactivity.el.addEventListener('mouseleave', function(e){ |
|
|
|
pJS.interactivity.mouse.pos_x = null; |
|
pJS.interactivity.mouse.pos_y = null; |
|
pJS.interactivity.status = 'mouseleave'; |
|
|
|
}); |
|
|
|
} |
|
|
|
/* on click event */ |
|
if(pJS.interactivity.events.onclick.enable){ |
|
|
|
pJS.interactivity.el.addEventListener('click', function(){ |
|
|
|
pJS.interactivity.mouse.click_pos_x = pJS.interactivity.mouse.pos_x; |
|
pJS.interactivity.mouse.click_pos_y = pJS.interactivity.mouse.pos_y; |
|
pJS.interactivity.mouse.click_time = new Date().getTime(); |
|
|
|
if(pJS.interactivity.events.onclick.enable){ |
|
|
|
switch(pJS.interactivity.events.onclick.mode){ |
|
|
|
case 'push': |
|
if(pJS.particles.move.enable){ |
|
pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb, pJS.interactivity.mouse); |
|
}else{ |
|
if(pJS.interactivity.modes.push.particles_nb == 1){ |
|
pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb, pJS.interactivity.mouse); |
|
} |
|
else if(pJS.interactivity.modes.push.particles_nb > 1){ |
|
pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb); |
|
} |
|
} |
|
break; |
|
|
|
case 'remove': |
|
pJS.fn.modes.removeParticles(pJS.interactivity.modes.remove.particles_nb); |
|
break; |
|
|
|
case 'bubble': |
|
pJS.tmp.bubble_clicking = true; |
|
break; |
|
|
|
case 'repulse': |
|
pJS.tmp.repulse_clicking = true; |
|
pJS.tmp.repulse_count = 0; |
|
pJS.tmp.repulse_finish = false; |
|
setTimeout(function(){ |
|
pJS.tmp.repulse_clicking = false; |
|
}, pJS.interactivity.modes.repulse.duration*1000) |
|
break; |
|
|
|
} |
|
|
|
} |
|
|
|
}); |
|
|
|
} |
|
|
|
|
|
}; |
|
|
|
pJS.fn.vendors.densityAutoParticles = function(){ |
|
|
|
if(pJS.particles.number.density.enable){ |
|
|
|
/* calc area */ |
|
var area = pJS.canvas.el.width * pJS.canvas.el.height / 1000; |
|
if(pJS.tmp.retina){ |
|
area = area/(pJS.canvas.pxratio*2); |
|
} |
|
|
|
/* calc number of particles based on density area */ |
|
var nb_particles = area * pJS.particles.number.value / pJS.particles.number.density.value_area; |
|
|
|
/* add or remove X particles */ |
|
var missing_particles = pJS.particles.array.length - nb_particles; |
|
if(missing_particles < 0) pJS.fn.modes.pushParticles(Math.abs(missing_particles)); |
|
else pJS.fn.modes.removeParticles(missing_particles); |
|
|
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.vendors.checkOverlap = function(p1, position){ |
|
for(var i = 0; i < pJS.particles.array.length; i++){ |
|
var p2 = pJS.particles.array[i]; |
|
|
|
var dx = p1.x - p2.x, |
|
dy = p1.y - p2.y, |
|
dist = Math.sqrt(dx*dx + dy*dy); |
|
|
|
if(dist <= p1.radius + p2.radius){ |
|
p1.x = position ? position.x : Math.random() * pJS.canvas.w; |
|
p1.y = position ? position.y : Math.random() * pJS.canvas.h; |
|
pJS.fn.vendors.checkOverlap(p1); |
|
} |
|
} |
|
}; |
|
|
|
|
|
pJS.fn.vendors.createSvgImg = function(p){ |
|
|
|
/* set color to svg element */ |
|
var svgXml = pJS.tmp.source_svg, |
|
rgbHex = /#([0-9A-F]{3,6})/gi, |
|
coloredSvgXml = svgXml.replace(rgbHex, function (m, r, g, b) { |
|
if(p.color.rgb){ |
|
var color_value = 'rgba('+p.color.rgb.r+','+p.color.rgb.g+','+p.color.rgb.b+','+p.opacity+')'; |
|
}else{ |
|
var color_value = 'hsla('+p.color.hsl.h+','+p.color.hsl.s+'%,'+p.color.hsl.l+'%,'+p.opacity+')'; |
|
} |
|
return color_value; |
|
}); |
|
|
|
/* prepare to create img with colored svg */ |
|
var svg = new Blob([coloredSvgXml], {type: 'image/svg+xml;charset=utf-8'}), |
|
DOMURL = window.URL || window.webkitURL || window, |
|
url = DOMURL.createObjectURL(svg); |
|
|
|
/* create particle img obj */ |
|
var img = new Image(); |
|
img.addEventListener('load', function(){ |
|
p.img.obj = img; |
|
p.img.loaded = true; |
|
DOMURL.revokeObjectURL(url); |
|
pJS.tmp.count_svg++; |
|
}); |
|
img.src = url; |
|
|
|
}; |
|
|
|
|
|
pJS.fn.vendors.destroypJS = function(){ |
|
cancelAnimationFrame(pJS.fn.drawAnimFrame); |
|
canvas_el.remove(); |
|
pJSDom = null; |
|
}; |
|
|
|
|
|
pJS.fn.vendors.drawShape = function(c, startX, startY, sideLength, sideCountNumerator, sideCountDenominator){ |
|
|
|
// By Programming Thomas - https://programmingthomas.wordpress.com/2013/04/03/n-sided-shapes/ |
|
var sideCount = sideCountNumerator * sideCountDenominator; |
|
var decimalSides = sideCountNumerator / sideCountDenominator; |
|
var interiorAngleDegrees = (180 * (decimalSides - 2)) / decimalSides; |
|
var interiorAngle = Math.PI - Math.PI * interiorAngleDegrees / 180; // convert to radians |
|
c.save(); |
|
c.beginPath(); |
|
c.translate(startX, startY); |
|
c.moveTo(0,0); |
|
for (var i = 0; i < sideCount; i++) { |
|
c.lineTo(sideLength,0); |
|
c.translate(sideLength,0); |
|
c.rotate(interiorAngle); |
|
} |
|
//c.stroke(); |
|
c.fill(); |
|
c.restore(); |
|
|
|
}; |
|
|
|
pJS.fn.vendors.exportImg = function(){ |
|
window.open(pJS.canvas.el.toDataURL('image/png'), '_blank'); |
|
}; |
|
|
|
|
|
pJS.fn.vendors.loadImg = function(type){ |
|
|
|
pJS.tmp.img_error = undefined; |
|
|
|
if(pJS.particles.shape.image.src != ''){ |
|
|
|
if(type == 'svg'){ |
|
|
|
var xhr = new XMLHttpRequest(); |
|
xhr.open('GET', pJS.particles.shape.image.src); |
|
xhr.onreadystatechange = function (data) { |
|
if(xhr.readyState == 4){ |
|
if(xhr.status == 200){ |
|
pJS.tmp.source_svg = data.currentTarget.response; |
|
pJS.fn.vendors.checkBeforeDraw(); |
|
}else{ |
|
console.log('Error pJS - Image not found'); |
|
pJS.tmp.img_error = true; |
|
} |
|
} |
|
} |
|
xhr.send(); |
|
|
|
}else{ |
|
|
|
var img = new Image(); |
|
img.addEventListener('load', function(){ |
|
pJS.tmp.img_obj = img; |
|
pJS.fn.vendors.checkBeforeDraw(); |
|
}); |
|
img.src = pJS.particles.shape.image.src; |
|
|
|
} |
|
|
|
}else{ |
|
console.log('Error pJS - No image.src'); |
|
pJS.tmp.img_error = true; |
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.vendors.draw = function(){ |
|
|
|
if(pJS.particles.shape.type == 'image'){ |
|
|
|
if(pJS.tmp.img_type == 'svg'){ |
|
|
|
if(pJS.tmp.count_svg >= pJS.particles.number.value){ |
|
pJS.fn.particlesDraw(); |
|
if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame); |
|
else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); |
|
}else{ |
|
//console.log('still loading...'); |
|
if(!pJS.tmp.img_error) pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); |
|
} |
|
|
|
}else{ |
|
|
|
if(pJS.tmp.img_obj != undefined){ |
|
pJS.fn.particlesDraw(); |
|
if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame); |
|
else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); |
|
}else{ |
|
if(!pJS.tmp.img_error) pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); |
|
} |
|
|
|
} |
|
|
|
}else{ |
|
pJS.fn.particlesDraw(); |
|
if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame); |
|
else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw); |
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.vendors.checkBeforeDraw = function(){ |
|
|
|
// if shape is image |
|
if(pJS.particles.shape.type == 'image'){ |
|
|
|
if(pJS.tmp.img_type == 'svg' && pJS.tmp.source_svg == undefined){ |
|
pJS.tmp.checkAnimFrame = requestAnimFrame(check); |
|
}else{ |
|
//console.log('images loaded! cancel check'); |
|
cancelRequestAnimFrame(pJS.tmp.checkAnimFrame); |
|
if(!pJS.tmp.img_error){ |
|
pJS.fn.vendors.init(); |
|
pJS.fn.vendors.draw(); |
|
} |
|
|
|
} |
|
|
|
}else{ |
|
pJS.fn.vendors.init(); |
|
pJS.fn.vendors.draw(); |
|
} |
|
|
|
}; |
|
|
|
|
|
pJS.fn.vendors.init = function(){ |
|
|
|
/* init canvas + particles */ |
|
pJS.fn.retinaInit(); |
|
pJS.fn.canvasInit(); |
|
pJS.fn.canvasSize(); |
|
pJS.fn.canvasPaint(); |
|
pJS.fn.particlesCreate(); |
|
pJS.fn.vendors.densityAutoParticles(); |
|
|
|
/* particles.line_linked - convert hex colors to rgb */ |
|
pJS.particles.line_linked.color_rgb_line = hexToRgb(pJS.particles.line_linked.color); |
|
|
|
}; |
|
|
|
|
|
pJS.fn.vendors.start = function(){ |
|
|
|
if(isInArray('image', pJS.particles.shape.type)){ |
|
pJS.tmp.img_type = pJS.particles.shape.image.src.substr(pJS.particles.shape.image.src.length - 3); |
|
pJS.fn.vendors.loadImg(pJS.tmp.img_type); |
|
}else{ |
|
pJS.fn.vendors.checkBeforeDraw(); |
|
} |
|
|
|
}; |
|
|
|
|
|
|
|
|
|
/* ---------- pJS - start ------------ */ |
|
|
|
|
|
pJS.fn.vendors.eventsListeners(); |
|
|
|
pJS.fn.vendors.start(); |
|
|
|
|
|
|
|
}; |
|
|
|
/* ---------- global functions - vendors ------------ */ |
|
|
|
Object.deepExtend = function(destination, source) { |
|
for (var property in source) { |
|
if (source[property] && source[property].constructor && |
|
source[property].constructor === Object) { |
|
destination[property] = destination[property] || {}; |
|
arguments.callee(destination[property], source[property]); |
|
} else { |
|
destination[property] = source[property]; |
|
} |
|
} |
|
return destination; |
|
}; |
|
|
|
window.requestAnimFrame = (function(){ |
|
return window.requestAnimationFrame || |
|
window.webkitRequestAnimationFrame || |
|
window.mozRequestAnimationFrame || |
|
window.oRequestAnimationFrame || |
|
window.msRequestAnimationFrame || |
|
function(callback){ |
|
window.setTimeout(callback, 1000 / 60); |
|
}; |
|
})(); |
|
|
|
window.cancelRequestAnimFrame = ( function() { |
|
return window.cancelAnimationFrame || |
|
window.webkitCancelRequestAnimationFrame || |
|
window.mozCancelRequestAnimationFrame || |
|
window.oCancelRequestAnimationFrame || |
|
window.msCancelRequestAnimationFrame || |
|
clearTimeout |
|
} )(); |
|
|
|
function hexToRgb(hex){ |
|
// By Tim Down - http://stackoverflow.com/a/5624139/3493650 |
|
// Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF") |
|
var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i; |
|
hex = hex.replace(shorthandRegex, function(m, r, g, b) { |
|
return r + r + g + g + b + b; |
|
}); |
|
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); |
|
return result ? { |
|
r: parseInt(result[1], 16), |
|
g: parseInt(result[2], 16), |
|
b: parseInt(result[3], 16) |
|
} : null; |
|
}; |
|
|
|
function clamp(number, min, max) { |
|
return Math.min(Math.max(number, min), max); |
|
}; |
|
|
|
function isInArray(value, array) { |
|
return array.indexOf(value) > -1; |
|
} |
|
|
|
|
|
/* ---------- particles.js functions - start ------------ */ |
|
|
|
window.pJSDom = []; |
|
|
|
window.particlesJS = function(tag_id, params){ |
|
|
|
//console.log(params); |
|
|
|
/* no string id? so it's object params, and set the id with default id */ |
|
if(typeof(tag_id) != 'string'){ |
|
params = tag_id; |
|
tag_id = 'particles-js'; |
|
} |
|
|
|
/* no id? set the id to default id */ |
|
if(!tag_id){ |
|
tag_id = 'particles-js'; |
|
} |
|
|
|
/* pJS elements */ |
|
var pJS_tag = document.getElementById(tag_id), |
|
pJS_canvas_class = 'particles-js-canvas-el', |
|
exist_canvas = pJS_tag.getElementsByClassName(pJS_canvas_class); |
|
|
|
/* remove canvas if exists into the pJS target tag */ |
|
if(exist_canvas.length){ |
|
while(exist_canvas.length > 0){ |
|
pJS_tag.removeChild(exist_canvas[0]); |
|
} |
|
} |
|
|
|
/* create canvas element */ |
|
var canvas_el = document.createElement('canvas'); |
|
canvas_el.className = pJS_canvas_class; |
|
|
|
/* set size canvas */ |
|
canvas_el.style.width = "100%"; |
|
canvas_el.style.height = "100%"; |
|
|
|
/* append canvas */ |
|
var canvas = document.getElementById(tag_id).appendChild(canvas_el); |
|
|
|
/* launch particle.js */ |
|
if(canvas != null){ |
|
pJSDom.push(new pJS(tag_id, params)); |
|
} |
|
|
|
}; |
|
|
|
window.particlesJS.load = function(tag_id, path_config_json, callback){ |
|
|
|
/* load json config */ |
|
var xhr = new XMLHttpRequest(); |
|
xhr.open('GET', path_config_json); |
|
xhr.onreadystatechange = function (data) { |
|
if(xhr.readyState == 4){ |
|
if(xhr.status == 200){ |
|
var params = JSON.parse(data.currentTarget.response); |
|
window.particlesJS(tag_id, params); |
|
if(callback) callback(); |
|
}else{ |
|
console.log('Error pJS - XMLHttpRequest status: '+xhr.status); |
|
console.log('Error pJS - File config not found'); |
|
} |
|
} |
|
}; |
|
xhr.send(); |
|
|
|
}; |