1541 lines
45 KiB
JavaScript
1541 lines
45 KiB
JavaScript
/* -----------------------------------------------
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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: 0.4
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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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/* 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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/* 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 {
|
|
if(p.opacity <= pJS.particles.opacity.anim.opacity_min) p.opacity_status = true;
|
|
p.opacity -= p.vo;
|
|
}
|
|
if(p.opacity < 0) p.opacity = 0;
|
|
}
|
|
|
|
/* change size */
|
|
if(pJS.particles.size.anim.enable){
|
|
if(p.size_status == true){
|
|
if(p.radius >= pJS.particles.size.value) p.size_status = false;
|
|
p.radius += p.vs;
|
|
}else{
|
|
if(p.radius <= pJS.particles.size.anim.size_min) p.size_status = true;
|
|
p.radius -= p.vs;
|
|
}
|
|
if(p.radius < 0) p.radius = 0;
|
|
}
|
|
|
|
/* change particle position if it is out of canvas */
|
|
if(pJS.particles.move.out_mode == 'bounce'){
|
|
var new_pos = {
|
|
x_left: p.radius,
|
|
x_right: pJS.canvas.w,
|
|
y_top: p.radius,
|
|
y_bottom: pJS.canvas.h
|
|
}
|
|
}else{
|
|
var new_pos = {
|
|
x_left: -p.radius,
|
|
x_right: pJS.canvas.w + p.radius,
|
|
y_top: -p.radius,
|
|
y_bottom: pJS.canvas.h + p.radius
|
|
}
|
|
}
|
|
|
|
if(p.x - p.radius > pJS.canvas.w){
|
|
p.x = new_pos.x_left;
|
|
p.y = Math.random() * pJS.canvas.h;
|
|
}
|
|
else if(p.x + p.radius < 0){
|
|
p.x = new_pos.x_right;
|
|
p.y = Math.random() * pJS.canvas.h;
|
|
}
|
|
if(p.y - p.radius > pJS.canvas.h){
|
|
p.y = new_pos.y_top;
|
|
p.x = Math.random() * pJS.canvas.w;
|
|
}
|
|
else if(p.y + p.radius < 0){
|
|
p.y = new_pos.y_bottom;
|
|
p.x = Math.random() * pJS.canvas.w;
|
|
}
|
|
|
|
/* out of canvas modes */
|
|
switch(pJS.particles.move.out_mode){
|
|
case 'bounce':
|
|
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();
|
|
|
|
}; |