https://neronsbrother.com/wp-content/plugins/css-for-elementor/pub…/js/extension-pafe-particles.js?ver=1.0.8.9

1/* -----------------------------------------------
2/* Author : Vincent Garreau  - vincentgarreau.com
3/* MIT license: http://opensource.org/licenses/MIT
4/* Demo / Generator : vincentgarreau.com/particles.js
5/* GitHub : github.com/VincentGarreau/particles.js
6/* How to use? : Check the GitHub README
7/* v2.0.0
8/* ----------------------------------------------- */
9
10var pJS = function(tag_id, params){ 
11
12  var canvas_el = document.querySelector(tag_id + ' > .particles-js-canvas-el');
13
14  /* particles.js variables with default values */
15  this.pJS = { 
16    canvas: {
17      el: canvas_el,
18      w: canvas_el.offsetWidth,
19      h: canvas_el.offsetHeight
20    },
21    particles: {
22      number: {
23        value: 400,
24        density: {
25          enable: true,
26          value_area: 800
27        }
28      },
29      color: {
30        value: '#2a802b'
31      },
32      shape: {
33        type: 'circle',
34        stroke: {
35          width: 0,
36          color: '#ff0000'
37        },
38        polygon: {
39          nb_sides: 5
40        },
41        image: {
42          src: '',
43          width: 100,
44          height: 100
45        }
46      },
47      opacity: {
48        value: 1,
49        random: false,
50        anim: {
51          enable: false,
52          speed: 2,
53          opacity_min: 0,
54          sync: false
55        }
56      },
57      size: {
58        value: 20,
59        random: false,
60        anim: {
61          enable: false,
62          speed: 20,
63          size_min: 0,
64          sync: false
65        }
66      },
67      line_linked: {
68        enable: true,
69        distance: 100,
70        color: '#fff',
71        opacity: 1,
72        width: 1
73      },
74      move: {
75        enable: true,
76        speed: 2,
77        direction: 'none',
78        random: false,
79        straight: false,
80        out_mode: 'out',
81        bounce: false,
82        attract: {
83          enable: false,
84          rotateX: 3000,
85          rotateY: 3000
86        }
87      },
88      array: []
89    },
90    interactivity: {
91      detect_on: 'canvas',
92      events: {
93        onhover: {
94          enable: true,
95          mode: 'grab'
96        },
97        onclick: {
98          enable: true,
99          mode: 'push'
100        },
101        resize: true
102      },
103      modes: {
104        grab:{
105          distance: 100,
106          line_linked:{
107            opacity: 1
108          }
109        },
110        bubble:{
111          distance: 200,
112          size: 80,
113          duration: 0.4
114        },
115        repulse:{
116          distance: 200,
117          duration: 0.4
118        },
119        push:{
120          particles_nb: 4
121        },
122        remove:{
123          particles_nb: 2
124        }
125      },
126      mouse:{}
127    },
128    retina_detect: false,
129    fn: {
130      interact: {},
131      modes: {},
132      vendors:{}
133    },
134    tmp: {}
135  };
136
137  var pJS = this.pJS;
138
139  /* params settings */
140  if(params){
141    Object.deepExtend(pJS, params);
142  }
143
144  pJS.tmp.obj = {
145    size_value: pJS.particles.size.value,
146    size_anim_speed: pJS.particles.size.anim.speed,
147    move_speed: pJS.particles.move.speed,
148    line_linked_distance: pJS.particles.line_linked.distance,
149    line_linked_width: pJS.particles.line_linked.width,
150    mode_grab_distance: pJS.interactivity.modes.grab.distance,
151    mode_bubble_distance: pJS.interactivity.modes.bubble.distance,
152    mode_bubble_size: pJS.interactivity.modes.bubble.size,
153    mode_repulse_distance: pJS.interactivity.modes.repulse.distance
154  };
155
156
157  pJS.fn.retinaInit = function(){
158
159    if(pJS.retina_detect && window.devicePixelRatio > 1){
160      pJS.canvas.pxratio = window.devicePixelRatio; 
161      pJS.tmp.retina = true;
162    } 
163    else{
164      pJS.canvas.pxratio = 1;
165      pJS.tmp.retina = false;
166    }
167
168    pJS.canvas.w = pJS.canvas.el.offsetWidth * pJS.canvas.pxratio;
169    pJS.canvas.h = pJS.canvas.el.offsetHeight * pJS.canvas.pxratio;
170
171    pJS.particles.size.value = pJS.tmp.obj.size_value * pJS.canvas.pxratio;
172    pJS.particles.size.anim.speed = pJS.tmp.obj.size_anim_speed * pJS.canvas.pxratio;
173    pJS.particles.move.speed = pJS.tmp.obj.move_speed * pJS.canvas.pxratio;
174    pJS.particles.line_linked.distance = pJS.tmp.obj.line_linked_distance * pJS.canvas.pxratio;
175    pJS.interactivity.modes.grab.distance = pJS.tmp.obj.mode_grab_distance * pJS.canvas.pxratio;
176    pJS.interactivity.modes.bubble.distance = pJS.tmp.obj.mode_bubble_distance * pJS.canvas.pxratio;
177    pJS.particles.line_linked.width = pJS.tmp.obj.line_linked_width * pJS.canvas.pxratio;
178    pJS.interactivity.modes.bubble.size = pJS.tmp.obj.mode_bubble_size * pJS.canvas.pxratio;
179    pJS.interactivity.modes.repulse.distance = pJS.tmp.obj.mode_repulse_distance * pJS.canvas.pxratio;
180
181  };
182
183
184
185  /* ---------- pJS functions - canvas ------------ */
186
187  pJS.fn.canvasInit = function(){
188    pJS.canvas.ctx = pJS.canvas.el.getContext('2d');
189  };
190
191  pJS.fn.canvasSize = function(){
192
193    pJS.canvas.el.width = pJS.canvas.w;
194    pJS.canvas.el.height = pJS.canvas.h;
195
196    if(pJS && pJS.interactivity.events.resize){
197
198      window.addEventListener('resize', function(){
199
200          pJS.canvas.w = pJS.canvas.el.offsetWidth;
201          pJS.canvas.h = pJS.canvas.el.offsetHeight;
202
203          /* resize canvas */
204          if(pJS.tmp.retina){
205            pJS.canvas.w *= pJS.canvas.pxratio;
206            pJS.canvas.h *= pJS.canvas.pxratio;
207          }
208
209          pJS.canvas.el.width = pJS.canvas.w;
210          pJS.canvas.el.height = pJS.canvas.h;
211
212          /* repaint canvas on anim disabled */
213          if(!pJS.particles.move.enable){
214            pJS.fn.particlesEmpty();
215            pJS.fn.particlesCreate();
216            pJS.fn.particlesDraw();
217            pJS.fn.vendors.densityAutoParticles();
218          }
219
220        /* density particles enabled */
221        pJS.fn.vendors.densityAutoParticles();
222
223      });
224
225    }
226
227  };
228
229
230  pJS.fn.canvasPaint = function(){
231    pJS.canvas.ctx.fillRect(0, 0, pJS.canvas.w, pJS.canvas.h);
232  };
233
234  pJS.fn.canvasClear = function(){
235    pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h);
236  };
237
238
239  /* --------- pJS functions - particles ----------- */
240
241  pJS.fn.particle = function(color, opacity, position){
242
243    /* size */
244    this.radius = (pJS.particles.size.random ? Math.random() : 1) * pJS.particles.size.value;
245    if(pJS.particles.size.anim.enable){
246      this.size_status = false;
247      this.vs = pJS.particles.size.anim.speed / 100;
248      if(!pJS.particles.size.anim.sync){
249        this.vs = this.vs * Math.random();
250      }
251    }
252
253    /* position */
254    this.x = position ? position.x : Math.random() * pJS.canvas.w;
255    this.y = position ? position.y : Math.random() * pJS.canvas.h;
256
257    /* check position  - into the canvas */
258    if(this.x > pJS.canvas.w - this.radius*2) this.x = this.x - this.radius;
259    else if(this.x < this.radius*2) this.x = this.x + this.radius;
260    if(this.y > pJS.canvas.h - this.radius*2) this.y = this.y - this.radius;
261    else if(this.y < this.radius*2) this.y = this.y + this.radius;
262
263    /* check position - avoid overlap */
264    if(pJS.particles.move.bounce){
265      pJS.fn.vendors.checkOverlap(this, position);
266    }
267
268    /* color */
269    this.color = {};
270    if(typeof(color.value) == 'object'){
271
272      if(color.value instanceof Array){
273        var color_selected = color.value[Math.floor(Math.random() * pJS.particles.color.value.length)];
274        this.color.rgb = hexToRgb(color_selected);
275      }else{
276        if(color.value.r != undefined && color.value.g != undefined && color.value.b != undefined){
277          this.color.rgb = {
278            r: color.value.r,
279            g: color.value.g,
280            b: color.value.b
281          }
282        }
283        if(color.value.h != undefined && color.value.s != undefined && color.value.l != undefined){
284          this.color.hsl = {
285            h: color.value.h,
286            s: color.value.s,
287            l: color.value.l
288          }
289        }
290      }
291
292    }
293    else if(color.value == 'random'){
294      this.color.rgb = {
295        r: (Math.floor(Math.random() * (255 - 0 + 1)) + 0),
296        g: (Math.floor(Math.random() * (255 - 0 + 1)) + 0),
297        b: (Math.floor(Math.random() * (255 - 0 + 1)) + 0)
298      }
299    }
300    else if(typeof(color.value) == 'string'){
301      this.color = color;
302      this.color.rgb = hexToRgb(this.color.value);
303    }
304
305    /* opacity */
306    this.opacity = (pJS.particles.opacity.random ? Math.random() : 1) * pJS.particles.opacity.value;
307    if(pJS.particles.opacity.anim.enable){
308      this.opacity_status = false;
309      this.vo = pJS.particles.opacity.anim.speed / 100;
310      if(!pJS.particles.opacity.anim.sync){
311        this.vo = this.vo * Math.random();
312      }
313    }
314
315    /* animation - velocity for speed */
316    var velbase = {}
317    switch(pJS.particles.move.direction){
318      case 'top':
319        velbase = { x:0, y:-1 };
320      break;
321      case 'top-right':
322        velbase = { x:0.5, y:-0.5 };
323      break;
324      case 'right':
325        velbase = { x:1, y:-0 };
326      break;
327      case 'bottom-right':
328        velbase = { x:0.5, y:0.5 };
329      break;
330      case 'bottom':
331        velbase = { x:0, y:1 };
332      break;
333      case 'bottom-left':
334        velbase = { x:-0.5, y:1 };
335      break;
336      case 'left':
337        velbase = { x:-1, y:0 };
338      break;
339      case 'top-left':
340        velbase = { x:-0.5, y:-0.5 };
341      break;
342      default:
343        velbase = { x:0, y:0 };
344      break;
345    }
346
347    if(pJS.particles.move.straight){
348      this.vx = velbase.x;
349      this.vy = velbase.y;
350      if(pJS.particles.move.random){
351        this.vx = this.vx * (Math.random());
352        this.vy = this.vy * (Math.random());
353      }
354    }else{
355      this.vx = velbase.x + Math.random()-0.5;
356      this.vy = velbase.y + Math.random()-0.5;
357    }
358
359    // var theta = 2.0 * Math.PI * Math.random();
360    // this.vx = Math.cos(theta);
361    // this.vy = Math.sin(theta);
362
363    this.vx_i = this.vx;
364    this.vy_i = this.vy;
365
366    
367
368    /* if shape is image */
369
370    var shape_type = pJS.particles.shape.type;
371    if(typeof(shape_type) == 'object'){
372      if(shape_type instanceof Array){
373        var shape_selected = shape_type[Math.floor(Math.random() * shape_type.length)];
374        this.shape = shape_selected;
375      }
376    }else{
377      this.shape = shape_type;
378    }
379
380    if(this.shape == 'image'){
381      var sh = pJS.particles.shape;
382      this.img = {
383        src: sh.image.src,
384        ratio: sh.image.width / sh.image.height
385      }
386      if(!this.img.ratio) this.img.ratio = 1;
387      if(pJS.tmp.img_type == 'svg' && pJS.tmp.source_svg != undefined){
388        pJS.fn.vendors.createSvgImg(this);
389        if(pJS.tmp.pushing){
390          this.img.loaded = false;
391        }
392      }
393    }
394
395    
396
397  };
398
399
400  pJS.fn.particle.prototype.draw = function() {
401
402    var p = this;
403
404    if(p.radius_bubble != undefined){
405      var radius = p.radius_bubble; 
406    }else{
407      var radius = p.radius;
408    }
409
410    if(p.opacity_bubble != undefined){
411      var opacity = p.opacity_bubble;
412    }else{
413      var opacity = p.opacity;
414    }
415
416    if(p.color.rgb){
417      var color_value = 'rgba('+p.color.rgb.r+','+p.color.rgb.g+','+p.color.rgb.b+','+opacity+')';
418    }else{
419      var color_value = 'hsla('+p.color.hsl.h+','+p.color.hsl.s+'%,'+p.color.hsl.l+'%,'+opacity+')';
420    }
421
422    pJS.canvas.ctx.fillStyle = color_value;
423    pJS.canvas.ctx.beginPath();
424
425    switch(p.shape){
426
427      case 'circle':
428        pJS.canvas.ctx.arc(p.x, p.y, radius, 0, Math.PI * 2, false);
429      break;
430
431      case 'edge':
432        pJS.canvas.ctx.rect(p.x-radius, p.y-radius, radius*2, radius*2);
433      break;
434
435      case 'triangle':
436        pJS.fn.vendors.drawShape(pJS.canvas.ctx, p.x-radius, p.y+radius / 1.66, radius*2, 3, 2);
437      break;
438
439      case 'polygon':
440        pJS.fn.vendors.drawShape(
441          pJS.canvas.ctx,
442          p.x - radius / (pJS.particles.shape.polygon.nb_sides/3.5), // startX
443          p.y - radius / (2.66/3.5), // startY
444          radius*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength
445          pJS.particles.shape.polygon.nb_sides, // sideCountNumerator
446          1 // sideCountDenominator
447        );
448      break;
449
450      case 'star':
451        pJS.fn.vendors.drawShape(
452          pJS.canvas.ctx,
453          p.x - radius*2 / (pJS.particles.shape.polygon.nb_sides/4), // startX
454          p.y - radius / (2*2.66/3.5), // startY
455          radius*2*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength
456          pJS.particles.shape.polygon.nb_sides, // sideCountNumerator
457          2 // sideCountDenominator
458        );
459      break;
460
461      case 'image':
462
463        function draw(){
464          pJS.canvas.ctx.drawImage(
465            img_obj,
466            p.x-radius,
467            p.y-radius,
468            radius*2,
469            radius*2 / p.img.ratio
470          );
471        }
472
473        if(pJS.tmp.img_type == 'svg'){
474          var img_obj = p.img.obj;
475        }else{
476          var img_obj = pJS.tmp.img_obj;
477        }
478
479        if(img_obj){
480          draw();
481        }
482
483      break;
484
485    }
486
487    pJS.canvas.ctx.closePath();
488
489    if(pJS.particles.shape.stroke.width > 0){
490      pJS.canvas.ctx.strokeStyle = pJS.particles.shape.stroke.color;
491      pJS.canvas.ctx.lineWidth = pJS.particles.shape.stroke.width;
492      pJS.canvas.ctx.stroke();
493    }
494    
495    pJS.canvas.ctx.fill();
496    
497  };
498
499
500  pJS.fn.particlesCreate = function(){
501    for(var i = 0; i < pJS.particles.number.value; i++) {
502      pJS.particles.array.push(new pJS.fn.particle(pJS.particles.color, pJS.particles.opacity.value));
503    }
504  };
505
506  pJS.fn.particlesUpdate = function(){
507
508    for(var i = 0; i < pJS.particles.array.length; i++){
509
510      /* the particle */
511      var p = pJS.particles.array[i];
512
513      // var d = ( dx = pJS.interactivity.mouse.click_pos_x - p.x ) * dx + ( dy = pJS.interactivity.mouse.click_pos_y - p.y ) * dy;
514      // var f = -BANG_SIZE / d;
515      // if ( d < BANG_SIZE ) {
516      //     var t = Math.atan2( dy, dx );
517      //     p.vx = f * Math.cos(t);
518      //     p.vy = f * Math.sin(t);
519      // }
520
521      /* move the particle */
522      if(pJS.particles.move.enable){
523        var ms = pJS.particles.move.speed/2;
524        p.x += p.vx * ms;
525        p.y += p.vy * ms;
526      }
527
528      /* change opacity status */
529      if(pJS.particles.opacity.anim.enable) {
530        if(p.opacity_status == true) {
531          if(p.opacity >= pJS.particles.opacity.value) p.opacity_status = false;
532          p.opacity += p.vo;
533        }else {
534          if(p.opacity <= pJS.particles.opacity.anim.opacity_min) p.opacity_status = true;
535          p.opacity -= p.vo;
536        }
537        if(p.opacity < 0) p.opacity = 0;
538      }
539
540      /* change size */
541      if(pJS.particles.size.anim.enable){
542        if(p.size_status == true){
543          if(p.radius >= pJS.particles.size.value) p.size_status = false;
544          p.radius += p.vs;
545        }else{
546          if(p.radius <= pJS.particles.size.anim.size_min) p.size_status = true;
547          p.radius -= p.vs;
548        }
549        if(p.radius < 0) p.radius = 0;
550      }
551
552      /* change particle position if it is out of canvas */
553      if(pJS.particles.move.out_mode == 'bounce'){
554        var new_pos = {
555          x_left: p.radius,
556          x_right:  pJS.canvas.w,
557          y_top: p.radius,
558          y_bottom: pJS.canvas.h
559        }
560      }else{
561        var new_pos = {
562          x_left: -p.radius,
563          x_right: pJS.canvas.w + p.radius,
564          y_top: -p.radius,
565          y_bottom: pJS.canvas.h + p.radius
566        }
567      }
568
569      if(p.x - p.radius > pJS.canvas.w){
570        p.x = new_pos.x_left;
571        p.y = Math.random() * pJS.canvas.h;
572      }
573      else if(p.x + p.radius < 0){
574        p.x = new_pos.x_right;
575        p.y = Math.random() * pJS.canvas.h;
576      }
577      if(p.y - p.radius > pJS.canvas.h){
578        p.y = new_pos.y_top;
579        p.x = Math.random() * pJS.canvas.w;
580      }
581      else if(p.y + p.radius < 0){
582        p.y = new_pos.y_bottom;
583        p.x = Math.random() * pJS.canvas.w;
584      }
585
586      /* out of canvas modes */
587      switch(pJS.particles.move.out_mode){
588        case 'bounce':
589          if (p.x + p.radius > pJS.canvas.w) p.vx = -p.vx;
590          else if (p.x - p.radius < 0) p.vx = -p.vx;
591          if (p.y + p.radius > pJS.canvas.h) p.vy = -p.vy;
592          else if (p.y - p.radius < 0) p.vy = -p.vy;
593        break;
594      }
595
596      /* events */
597      if(isInArray('grab', pJS.interactivity.events.onhover.mode)){
598        pJS.fn.modes.grabParticle(p);
599      }
600
601      if(isInArray('bubble', pJS.interactivity.events.onhover.mode) || isInArray('bubble', pJS.interactivity.events.onclick.mode)){
602        pJS.fn.modes.bubbleParticle(p);
603      }
604
605      if(isInArray('repulse', pJS.interactivity.events.onhover.mode) || isInArray('repulse', pJS.interactivity.events.onclick.mode)){
606        pJS.fn.modes.repulseParticle(p);
607      }
608
609      /* interaction auto between particles */
610      if(pJS.particles.line_linked.enable || pJS.particles.move.attract.enable){
611        for(var j = i + 1; j < pJS.particles.array.length; j++){
612          var p2 = pJS.particles.array[j];
613
614          /* link particles */
615          if(pJS.particles.line_linked.enable){
616            pJS.fn.interact.linkParticles(p,p2);
617          }
618
619          /* attract particles */
620          if(pJS.particles.move.attract.enable){
621            pJS.fn.interact.attractParticles(p,p2);
622          }
623
624          /* bounce particles */
625          if(pJS.particles.move.bounce){
626            pJS.fn.interact.bounceParticles(p,p2);
627          }
628
629        }
630      }
631
632
633    }
634
635  };
636
637  pJS.fn.particlesDraw = function(){
638
639    /* clear canvas */
640    pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h);
641
642    /* update each particles param */
643    pJS.fn.particlesUpdate();
644
645    /* draw each particle */
646    for(var i = 0; i < pJS.particles.array.length; i++){
647      var p = pJS.particles.array[i];
648      p.draw();
649    }
650
651  };
652
653  pJS.fn.particlesEmpty = function(){
654    pJS.particles.array = [];
655  };
656
657  pJS.fn.particlesRefresh = function(){
658
659    /* init all */
660    cancelRequestAnimFrame(pJS.fn.checkAnimFrame);
661    cancelRequestAnimFrame(pJS.fn.drawAnimFrame);
662    pJS.tmp.source_svg = undefined;
663    pJS.tmp.img_obj = undefined;
664    pJS.tmp.count_svg = 0;
665    pJS.fn.particlesEmpty();
666    pJS.fn.canvasClear();
667    
668    /* restart */
669    pJS.fn.vendors.start();
670
671  };
672
673
674  /* ---------- pJS functions - particles interaction ------------ */
675
676  pJS.fn.interact.linkParticles = function(p1, p2){
677
678    var dx = p1.x - p2.x,
679        dy = p1.y - p2.y,
680        dist = Math.sqrt(dx*dx + dy*dy);
681
682    /* draw a line between p1 and p2 if the distance between them is under the config distance */
683    if(dist <= pJS.particles.line_linked.distance){
684
685      var opacity_line = pJS.particles.line_linked.opacity - (dist / (1/pJS.particles.line_linked.opacity)) / pJS.particles.line_linked.distance;
686
687      if(opacity_line > 0){        
688        
689        /* style */
690        var color_line = pJS.particles.line_linked.color_rgb_line;
691        pJS.canvas.ctx.strokeStyle = 'rgba('+color_line.r+','+color_line.g+','+color_line.b+','+opacity_line+')';
692        pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width;
693        //pJS.canvas.ctx.lineCap = 'round'; /* performance issue */
694        
695        /* path */
696        pJS.canvas.ctx.beginPath();
697        pJS.canvas.ctx.moveTo(p1.x, p1.y);
698        pJS.canvas.ctx.lineTo(p2.x, p2.y);
699        pJS.canvas.ctx.stroke();
700        pJS.canvas.ctx.closePath();
701
702      }
703
704    }
705
706  };
707
708
709  pJS.fn.interact.attractParticles  = function(p1, p2){
710
711    /* condensed particles */
712    var dx = p1.x - p2.x,
713        dy = p1.y - p2.y,
714        dist = Math.sqrt(dx*dx + dy*dy);
715
716    if(dist <= pJS.particles.line_linked.distance){
717
718      var ax = dx/(pJS.particles.move.attract.rotateX*1000),
719          ay = dy/(pJS.particles.move.attract.rotateY*1000);
720
721      p1.vx -= ax;
722      p1.vy -= ay;
723
724      p2.vx += ax;
725      p2.vy += ay;
726
727    }
728    
729
730  }
731
732
733  pJS.fn.interact.bounceParticles = function(p1, p2){
734
735    var dx = p1.x - p2.x,
736        dy = p1.y - p2.y,
737        dist = Math.sqrt(dx*dx + dy*dy),
738        dist_p = p1.radius+p2.radius;
739
740    if(dist <= dist_p){
741      p1.vx = -p1.vx;
742      p1.vy = -p1.vy;
743
744      p2.vx = -p2.vx;
745      p2.vy = -p2.vy;
746    }
747
748  }
749
750
751  /* ---------- pJS functions - modes events ------------ */
752
753  pJS.fn.modes.pushParticles = function(nb, pos){
754
755    pJS.tmp.pushing = true;
756
757    for(var i = 0; i < nb; i++){
758      pJS.particles.array.push(
759        new pJS.fn.particle(
760          pJS.particles.color,
761          pJS.particles.opacity.value,
762          {
763            'x': pos ? pos.pos_x : Math.random() * pJS.canvas.w,
764            'y': pos ? pos.pos_y : Math.random() * pJS.canvas.h
765          }
766        )
767      )
768      if(i == nb-1){
769        if(!pJS.particles.move.enable){
770          pJS.fn.particlesDraw();
771        }
772        pJS.tmp.pushing = false;
773      }
774    }
775
776  };
777
778
779  pJS.fn.modes.removeParticles = function(nb){
780
781    pJS.particles.array.splice(0, nb);
782    if(!pJS.particles.move.enable){
783      pJS.fn.particlesDraw();
784    }
785
786  };
787
788
789  pJS.fn.modes.bubbleParticle = function(p){
790
791    /* on hover event */
792    if(pJS.interactivity.events.onhover.enable && isInArray('bubble', pJS.interactivity.events.onhover.mode)){
793
794      var dx_mouse = p.x - pJS.interactivity.mouse.pos_x,
795          dy_mouse = p.y - pJS.interactivity.mouse.pos_y,
796          dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse),
797          ratio = 1 - dist_mouse / pJS.interactivity.modes.bubble.distance;
798
799      function init(){
800        p.opacity_bubble = p.opacity;
801        p.radius_bubble = p.radius;
802      }
803
804      /* mousemove - check ratio */
805      if(dist_mouse <= pJS.interactivity.modes.bubble.distance){
806
807        if(ratio >= 0 && pJS.interactivity.status == 'mousemove'){
808          
809          /* size */
810          if(pJS.interactivity.modes.bubble.size != pJS.particles.size.value){
811
812            if(pJS.interactivity.modes.bubble.size > pJS.particles.size.value){
813              var size = p.radius + (pJS.interactivity.modes.bubble.size*ratio);
814              if(size >= 0){
815                p.radius_bubble = size;
816              }
817            }else{
818              var dif = p.radius - pJS.interactivity.modes.bubble.size,
819                  size = p.radius - (dif*ratio);
820              if(size > 0){
821                p.radius_bubble = size;
822              }else{
823                p.radius_bubble = 0;
824              }
825            }
826
827          }
828
829          /* opacity */
830          if(pJS.interactivity.modes.bubble.opacity != pJS.particles.opacity.value){
831
832            if(pJS.interactivity.modes.bubble.opacity > pJS.particles.opacity.value){
833              var opacity = pJS.interactivity.modes.bubble.opacity*ratio;
834              if(opacity > p.opacity && opacity <= pJS.interactivity.modes.bubble.opacity){
835                p.opacity_bubble = opacity;
836              }
837            }else{
838              var opacity = p.opacity - (pJS.particles.opacity.value-pJS.interactivity.modes.bubble.opacity)*ratio;
839              if(opacity < p.opacity && opacity >= pJS.interactivity.modes.bubble.opacity){
840                p.opacity_bubble = opacity;
841              }
842            }
843
844          }
845
846        }
847
848      }else{
849        init();
850      }
851
852
853      /* mouseleave */
854      if(pJS.interactivity.status == 'mouseleave'){
855        init();
856      }
857    
858    }
859
860    /* on click event */
861    else if(pJS.interactivity.events.onclick.enable && isInArray('bubble', pJS.interactivity.events.onclick.mode)){
862
863
864      if(pJS.tmp.bubble_clicking){
865        var dx_mouse = p.x - pJS.interactivity.mouse.click_pos_x,
866            dy_mouse = p.y - pJS.interactivity.mouse.click_pos_y,
867            dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse),
868            time_spent = (new Date().getTime() - pJS.interactivity.mouse.click_time)/1000;
869
870        if(time_spent > pJS.interactivity.modes.bubble.duration){
871          pJS.tmp.bubble_duration_end = true;
872        }
873
874        if(time_spent > pJS.interactivity.modes.bubble.duration*2){
875          pJS.tmp.bubble_clicking = false;
876          pJS.tmp.bubble_duration_end = false;
877        }
878      }
879
880
881      function process(bubble_param, particles_param, p_obj_bubble, p_obj, id){
882
883        if(bubble_param != particles_param){
884
885          if(!pJS.tmp.bubble_duration_end){
886            if(dist_mouse <= pJS.interactivity.modes.bubble.distance){
887              if(p_obj_bubble != undefined) var obj = p_obj_bubble;
888              else var obj = p_obj;
889              if(obj != bubble_param){
890                var value = p_obj - (time_spent * (p_obj - bubble_param) / pJS.interactivity.modes.bubble.duration);
891                if(id == 'size') p.radius_bubble = value;
892                if(id == 'opacity') p.opacity_bubble = value;
893              }
894            }else{
895              if(id == 'size') p.radius_bubble = undefined;
896              if(id == 'opacity') p.opacity_bubble = undefined;
897            }
898          }else{
899            if(p_obj_bubble != undefined){
900              var value_tmp = p_obj - (time_spent * (p_obj - bubble_param) / pJS.interactivity.modes.bubble.duration),
901                  dif = bubble_param - value_tmp;
902                  value = bubble_param + dif;
903              if(id == 'size') p.radius_bubble = value;
904              if(id == 'opacity') p.opacity_bubble = value;
905            }
906          }
907
908        }
909
910      }
911
912      if(pJS.tmp.bubble_clicking){
913        /* size */
914        process(pJS.interactivity.modes.bubble.size, pJS.particles.size.value, p.radius_bubble, p.radius, 'size');
915        /* opacity */
916        process(pJS.interactivity.modes.bubble.opacity, pJS.particles.opacity.value, p.opacity_bubble, p.opacity, 'opacity');
917      }
918
919    }
920
921  };
922
923
924  pJS.fn.modes.repulseParticle = function(p){
925
926    if(pJS.interactivity.events.onhover.enable && isInArray('repulse', pJS.interactivity.events.onhover.mode) && pJS.interactivity.status == 'mousemove') {
927
928      var dx_mouse = p.x - pJS.interactivity.mouse.pos_x,
929          dy_mouse = p.y - pJS.interactivity.mouse.pos_y,
930          dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse);
931
932      var normVec = {x: dx_mouse/dist_mouse, y: dy_mouse/dist_mouse},
933          repulseRadius = pJS.interactivity.modes.repulse.distance,
934          velocity = 100,
935          repulseFactor = clamp((1/repulseRadius)*(-1*Math.pow(dist_mouse/repulseRadius,2)+1)*repulseRadius*velocity, 0, 50);
936      
937      var pos = {
938        x: p.x + normVec.x * repulseFactor,
939        y: p.y + normVec.y * repulseFactor
940      }
941
942      if(pJS.particles.move.out_mode == 'bounce'){
943        if(pos.x - p.radius > 0 && pos.x + p.radius < pJS.canvas.w) p.x = pos.x;
944        if(pos.y - p.radius > 0 && pos.y + p.radius < pJS.canvas.h) p.y = pos.y;
945      }else{
946        p.x = pos.x;
947        p.y = pos.y;
948      }
949    
950    }
951
952
953    else if(pJS.interactivity.events.onclick.enable && isInArray('repulse', pJS.interactivity.events.onclick.mode)) {
954
955      if(!pJS.tmp.repulse_finish){
956        pJS.tmp.repulse_count++;
957        if(pJS.tmp.repulse_count == pJS.particles.array.length){
958          pJS.tmp.repulse_finish = true;
959        }
960      }
961
962      if(pJS.tmp.repulse_clicking){
963
964        var repulseRadius = Math.pow(pJS.interactivity.modes.repulse.distance/6, 3);
965
966        var dx = pJS.interactivity.mouse.click_pos_x - p.x,
967            dy = pJS.interactivity.mouse.click_pos_y - p.y,
968            d = dx*dx + dy*dy;
969
970        var force = -repulseRadius / d * 1;
971
972        function process(){
973
974          var f = Math.atan2(dy,dx);
975          p.vx = force * Math.cos(f);
976          p.vy = force * Math.sin(f);
977
978          if(pJS.particles.move.out_mode == 'bounce'){
979            var pos = {
980              x: p.x + p.vx,
981              y: p.y + p.vy
982            }
983            if (pos.x + p.radius > pJS.canvas.w) p.vx = -p.vx;
984            else if (pos.x - p.radius < 0) p.vx = -p.vx;
985            if (pos.y + p.radius > pJS.canvas.h) p.vy = -p.vy;
986            else if (pos.y - p.radius < 0) p.vy = -p.vy;
987          }
988
989        }
990
991        // default
992        if(d <= repulseRadius){
993          process();
994        }
995
996        // bang - slow motion mode
997        // if(!pJS.tmp.repulse_finish){
998        //   if(d <= repulseRadius){
999        //     process();
1000        //   }
1001        // }else{
1002        //   process();
1003        // }
1004        
1005
1006      }else{
1007
1008        if(pJS.tmp.repulse_clicking == false){
1009
1010          p.vx = p.vx_i;
1011          p.vy = p.vy_i;
1012        
1013        }
1014
1015      }
1016
1017    }
1018
1019  }
1020
1021
1022  pJS.fn.modes.grabParticle = function(p){
1023
1024    if(pJS.interactivity.events.onhover.enable && pJS.interactivity.status == 'mousemove'){
1025
1026      var dx_mouse = p.x - pJS.interactivity.mouse.pos_x,
1027          dy_mouse = p.y - pJS.interactivity.mouse.pos_y,
1028          dist_mouse = Math.sqrt(dx_mouse*dx_mouse + dy_mouse*dy_mouse);
1029
1030      /* draw a line between the cursor and the particle if the distance between them is under the config distance */
1031      if(dist_mouse <= pJS.interactivity.modes.grab.distance){
1032
1033        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;
1034
1035        if(opacity_line > 0){
1036
1037          /* style */
1038          var color_line = pJS.particles.line_linked.color_rgb_line;
1039          pJS.canvas.ctx.strokeStyle = 'rgba('+color_line.r+','+color_line.g+','+color_line.b+','+opacity_line+')';
1040          pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width;
1041          //pJS.canvas.ctx.lineCap = 'round'; /* performance issue */
1042          
1043          /* path */
1044          pJS.canvas.ctx.beginPath();
1045          pJS.canvas.ctx.moveTo(p.x, p.y);
1046          pJS.canvas.ctx.lineTo(pJS.interactivity.mouse.pos_x, pJS.interactivity.mouse.pos_y);
1047          pJS.canvas.ctx.stroke();
1048          pJS.canvas.ctx.closePath();
1049
1050        }
1051
1052      }
1053
1054    }
1055
1056  };
1057
1058
1059
1060  /* ---------- pJS functions - vendors ------------ */
1061
1062  pJS.fn.vendors.eventsListeners = function(){
1063
1064    /* events target element */
1065    if(pJS.interactivity.detect_on == 'window'){
1066      pJS.interactivity.el = window;
1067    }else{
1068      pJS.interactivity.el = pJS.canvas.el;
1069    }
1070
1071
1072    /* detect mouse pos - on hover / click event */
1073    if(pJS.interactivity.events.onhover.enable || pJS.interactivity.events.onclick.enable){
1074
1075      /* el on mousemove */
1076      pJS.interactivity.el.addEventListener('mousemove', function(e){
1077
1078        if(pJS.interactivity.el == window){
1079          var pos_x = e.clientX,
1080              pos_y = e.clientY;
1081        }
1082        else{
1083          var pos_x = e.offsetX || e.clientX,
1084              pos_y = e.offsetY || e.clientY;
1085        }
1086
1087        pJS.interactivity.mouse.pos_x = pos_x;
1088        pJS.interactivity.mouse.pos_y = pos_y;
1089
1090        if(pJS.tmp.retina){
1091          pJS.interactivity.mouse.pos_x *= pJS.canvas.pxratio;
1092          pJS.interactivity.mouse.pos_y *= pJS.canvas.pxratio;
1093        }
1094
1095        pJS.interactivity.status = 'mousemove';
1096
1097      });
1098
1099      /* el on onmouseleave */
1100      pJS.interactivity.el.addEventListener('mouseleave', function(e){
1101
1102        pJS.interactivity.mouse.pos_x = null;
1103        pJS.interactivity.mouse.pos_y = null;
1104        pJS.interactivity.status = 'mouseleave';
1105
1106      });
1107
1108    }
1109
1110    /* on click event */
1111    if(pJS.interactivity.events.onclick.enable){
1112
1113      pJS.interactivity.el.addEventListener('click', function(){
1114
1115        pJS.interactivity.mouse.click_pos_x = pJS.interactivity.mouse.pos_x;
1116        pJS.interactivity.mouse.click_pos_y = pJS.interactivity.mouse.pos_y;
1117        pJS.interactivity.mouse.click_time = new Date().getTime();
1118
1119        if(pJS.interactivity.events.onclick.enable){
1120
1121          switch(pJS.interactivity.events.onclick.mode){
1122
1123            case 'push':
1124              if(pJS.particles.move.enable){
1125                pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb, pJS.interactivity.mouse);
1126              }else{
1127                if(pJS.interactivity.modes.push.particles_nb == 1){
1128                  pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb, pJS.interactivity.mouse);
1129                }
1130                else if(pJS.interactivity.modes.push.particles_nb > 1){
1131                  pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb);
1132                }
1133              }
1134            break;
1135
1136            case 'remove':
1137              pJS.fn.modes.removeParticles(pJS.interactivity.modes.remove.particles_nb);
1138            break;
1139
1140            case 'bubble':
1141              pJS.tmp.bubble_clicking = true;
1142            break;
1143
1144            case 'repulse':
1145              pJS.tmp.repulse_clicking = true;
1146              pJS.tmp.repulse_count = 0;
1147              pJS.tmp.repulse_finish = false;
1148              setTimeout(function(){
1149                pJS.tmp.repulse_clicking = false;
1150              }, pJS.interactivity.modes.repulse.duration*1000)
1151            break;
1152
1153          }
1154
1155        }
1156
1157      });
1158        
1159    }
1160
1161
1162  };
1163
1164  pJS.fn.vendors.densityAutoParticles = function(){
1165
1166    if(pJS.particles.number.density.enable){
1167
1168      /* calc area */
1169      var area = pJS.canvas.el.width * pJS.canvas.el.height / 1000;
1170      if(pJS.tmp.retina){
1171        area = area/(pJS.canvas.pxratio*2);
1172      }
1173
1174      /* calc number of particles based on density area */
1175      var nb_particles = area * pJS.particles.number.value / pJS.particles.number.density.value_area;
1176
1177      /* add or remove X particles */
1178      var missing_particles = pJS.particles.array.length - nb_particles;
1179      if(missing_particles < 0) pJS.fn.modes.pushParticles(Math.abs(missing_particles));
1180      else pJS.fn.modes.removeParticles(missing_particles);
1181
1182    }
1183
1184  };
1185
1186
1187  pJS.fn.vendors.checkOverlap = function(p1, position){
1188    for(var i = 0; i < pJS.particles.array.length; i++){
1189      var p2 = pJS.particles.array[i];
1190
1191      var dx = p1.x - p2.x,
1192          dy = p1.y - p2.y,
1193          dist = Math.sqrt(dx*dx + dy*dy);
1194
1195      if(dist <= p1.radius + p2.radius){
1196        p1.x = position ? position.x : Math.random() * pJS.canvas.w;
1197        p1.y = position ? position.y : Math.random() * pJS.canvas.h;
1198        pJS.fn.vendors.checkOverlap(p1);
1199      }
1200    }
1201  };
1202
1203
1204  pJS.fn.vendors.createSvgImg = function(p){
1205
1206    /* set color to svg element */
1207    var svgXml = pJS.tmp.source_svg,
1208        rgbHex = /#([0-9A-F]{3,6})/gi,
1209        coloredSvgXml = svgXml.replace(rgbHex, function (m, r, g, b) {
1210          if(p.color.rgb){
1211            var color_value = 'rgba('+p.color.rgb.r+','+p.color.rgb.g+','+p.color.rgb.b+','+p.opacity+')';
1212          }else{
1213            var color_value = 'hsla('+p.color.hsl.h+','+p.color.hsl.s+'%,'+p.color.hsl.l+'%,'+p.opacity+')';
1214          }
1215          return color_value;
1216        });
1217
1218    /* prepare to create img with colored svg */
1219    var svg = new Blob([coloredSvgXml], {type: 'image/svg+xml;charset=utf-8'}),
1220        DOMURL = window.URL || window.webkitURL || window,
1221        url = DOMURL.createObjectURL(svg);
1222
1223    /* create particle img obj */
1224    var img = new Image();
1225    img.addEventListener('load', function(){
1226      p.img.obj = img;
1227      p.img.loaded = true;
1228      DOMURL.revokeObjectURL(url);
1229      pJS.tmp.count_svg++;
1230    });
1231    img.src = url;
1232
1233  };
1234
1235
1236  pJS.fn.vendors.destroypJS = function(){
1237    cancelAnimationFrame(pJS.fn.drawAnimFrame);
1238    canvas_el.remove();
1239    pJSDom = null;
1240  };
1241
1242
1243  pJS.fn.vendors.drawShape = function(c, startX, startY, sideLength, sideCountNumerator, sideCountDenominator){
1244
1245    // By Programming Thomas - https://programmingthomas.wordpress.com/2013/04/03/n-sided-shapes/
1246    var sideCount = sideCountNumerator * sideCountDenominator;
1247    var decimalSides = sideCountNumerator / sideCountDenominator;
1248    var interiorAngleDegrees = (180 * (decimalSides - 2)) / decimalSides;
1249    var interiorAngle = Math.PI - Math.PI * interiorAngleDegrees / 180; // convert to radians
1250    c.save();
1251    c.beginPath();
1252    c.translate(startX, startY);
1253    c.moveTo(0,0);
1254    for (var i = 0; i < sideCount; i++) {
1255      c.lineTo(sideLength,0);
1256      c.translate(sideLength,0);
1257      c.rotate(interiorAngle);
1258    }
1259    //c.stroke();
1260    c.fill();
1261    c.restore();
1262
1263  };
1264
1265  pJS.fn.vendors.exportImg = function(){
1266    window.open(pJS.canvas.el.toDataURL('image/png'), '_blank');
1267  };
1268
1269
1270  pJS.fn.vendors.loadImg = function(type){
1271
1272    pJS.tmp.img_error = undefined;
1273
1274    if(pJS.particles.shape.image.src != ''){
1275
1276      if(type == 'svg'){
1277
1278        var xhr = new XMLHttpRequest();
1279        xhr.open('GET', pJS.particles.shape.image.src);
1280        xhr.onreadystatechange = function (data) {
1281          if(xhr.readyState == 4){
1282            if(xhr.status == 200){
1283              pJS.tmp.source_svg = data.currentTarget.response;
1284              pJS.fn.vendors.checkBeforeDraw();
1285            }else{
1286              console.log('Error pJS - Image not found');
1287              pJS.tmp.img_error = true;
1288            }
1289          }
1290        }
1291        xhr.send();
1292
1293      }else{
1294
1295        var img = new Image();
1296        img.addEventListener('load', function(){
1297          pJS.tmp.img_obj = img;
1298          pJS.fn.vendors.checkBeforeDraw();
1299        });
1300        img.src = pJS.particles.shape.image.src;
1301
1302      }
1303
1304    }else{
1305      console.log('Error pJS - No image.src');
1306      pJS.tmp.img_error = true;
1307    }
1308
1309  };
1310
1311
1312  pJS.fn.vendors.draw = function(){
1313
1314    if(pJS.particles.shape.type == 'image'){
1315
1316      if(pJS.tmp.img_type == 'svg'){
1317
1318        if(pJS.tmp.count_svg >= pJS.particles.number.value){
1319          pJS.fn.particlesDraw();
1320          if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame);
1321          else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw);
1322        }else{
1323          //console.log('still loading...');
1324          if(!pJS.tmp.img_error) pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw);
1325        }
1326
1327      }else{
1328
1329        if(pJS.tmp.img_obj != undefined){
1330          pJS.fn.particlesDraw();
1331          if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame);
1332          else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw);
1333        }else{
1334          if(!pJS.tmp.img_error) pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw);
1335        }
1336
1337      }
1338
1339    }else{
1340      pJS.fn.particlesDraw();
1341      if(!pJS.particles.move.enable) cancelRequestAnimFrame(pJS.fn.drawAnimFrame);
1342      else pJS.fn.drawAnimFrame = requestAnimFrame(pJS.fn.vendors.draw);
1343    }
1344
1345  };
1346
1347
1348  pJS.fn.vendors.checkBeforeDraw = function(){
1349
1350    // if shape is image
1351    if(pJS.particles.shape.type == 'image'){
1352
1353      if(pJS.tmp.img_type == 'svg' && pJS.tmp.source_svg == undefined){
1354        pJS.tmp.checkAnimFrame = requestAnimFrame(check);
1355      }else{
1356        //console.log('images loaded! cancel check');
1357        cancelRequestAnimFrame(pJS.tmp.checkAnimFrame);
1358        if(!pJS.tmp.img_error){
1359          pJS.fn.vendors.init();
1360          pJS.fn.vendors.draw();
1361        }
1362        
1363      }
1364
1365    }else{
1366      pJS.fn.vendors.init();
1367      pJS.fn.vendors.draw();
1368    }
1369
1370  };
1371
1372
1373  pJS.fn.vendors.init = function(){
1374
1375    /* init canvas + particles */
1376    pJS.fn.retinaInit();
1377    pJS.fn.canvasInit();
1378    pJS.fn.canvasSize();
1379    pJS.fn.canvasPaint();
1380    pJS.fn.particlesCreate();
1381    pJS.fn.vendors.densityAutoParticles();
1382
1383    /* particles.line_linked - convert hex colors to rgb */
1384    pJS.particles.line_linked.color_rgb_line = hexToRgb(pJS.particles.line_linked.color);
1385
1386  };
1387
1388
1389  pJS.fn.vendors.start = function(){
1390
1391    if(isInArray('image', pJS.particles.shape.type)){
1392      pJS.tmp.img_type = pJS.particles.shape.image.src.substr(pJS.particles.shape.image.src.length - 3);
1393      pJS.fn.vendors.loadImg(pJS.tmp.img_type);
1394    }else{
1395      pJS.fn.vendors.checkBeforeDraw();
1396    }
1397
1398  };
1399
1400
1401
1402
1403  /* ---------- pJS - start ------------ */
1404
1405
1406  pJS.fn.vendors.eventsListeners();
1407
1408  pJS.fn.vendors.start();
1409  
1410
1411
1412};
1413