Set Particles Animation Background In Blogger Website

আপনার ওয়েব সাইটি আরো সুন্দর আকর্ষণীয় করতে Particles Background Animation ব্যাবহার করতে পারেন। এটি আপনি খুব সহজেই সেট করতে পারবেন আর এটি আপনার টেমপ্লেটে কোনো প্রভাব ফেলবেনা। তাই Particles Animation Background সেট করতে নিচের কোডটি কপি করুনঃ

<head>

<style>

body{

font-family: 'Poppins', sans-serif;

}

/* ---- particles.js container ---- */

#particles-js{

position:relative;

height: 500px;

width: 100%;

background-color:black;

}

#particles-js .container{

color: white;

text-align: center;

position: absolute;

top: 15%;

width: 100%;

}

.tlnk{

border-bottom: 2px solid blue;

padding: 3px 10px;

font-size: 20px;

color: white;

text-decoration: none;

}

.tbtn{

floate: left;

margin: 10px;

}

.tbtn img{

border: 0px solid white;

}

.tbtn img:hover{

transform: scale(1.9);

transition:0.56s ease-in-out;

}

</style>

</head>

<body>

Please Contact Us For Get Password <br /><br />

<a class="tlnk" href="https://facebook.com/shohagkhan.vip">Contact-Us</a>

<br />

</div>

var pJS = function(tag_id, params){

var canvas_el = document.querySelector('#'+tag_id+' > .particles-js-canvas-el');

/* particles.js variables with default values */

this.pJS = {

canvas: {

el: canvas_el,

w: canvas_el.offsetWidth,

h: canvas_el.offsetHeight

particles: {

number: {

value: 400,

density: {

enable: true,

value_area: 800

}

color: {

value: '#fff'

shape: {

type: 'circle',

stroke: {

width: 0,

color: '#ff0000'

polygon: {

nb_sides: 5

image: {

src: '',

width: 100,

height: 100

}

opacity: {

value: 1,

random: false,

anim: {

enable: false,

speed: 2,

opacity_min: 0,

sync: false

}

size: {

value: 20,

random: false,

anim: {

enable: false,

speed: 20,

size_min: 0,

sync: false

}

line_linked: {

enable: true,

distance: 100,

color: '#fff',

opacity: 1,

width: 1

move: {

enable: true,

speed: 2,

direction: 'none',

random: false,

straight: false,

out_mode: 'out',

bounce: false,

attract: {

enable: false,

rotateX: 3000,

rotateY: 3000

}

array: []

interactivity: {

detect_on: 'canvas',

events: {

onhover: {

enable: true,

mode: 'grab'

onclick: {

enable: true,

mode: 'push'

resize: true

modes: {

grab:{

distance: 100,

line_linked:{

opacity: 1

}

bubble:{

distance: 200,

size: 80,

duration: 0.4

repulse:{

distance: 200,

duration: 0.4

push:{

particles_nb: 4

remove:{

particles_nb: 2

}

mouse:{}

retina_detect: false,

fn: {

interact: {},

modes: {},

vendors:{}

tmp: {}

};

var pJS = this.pJS;

/* params settings */

if(params){

Object.deepExtend(pJS, params);

}

pJS.tmp.obj = {

size_value: pJS.particles.size.value,

size_anim_speed: pJS.particles.size.anim.speed,

move_speed: pJS.particles.move.speed,

line_linked_distance: pJS.particles.line_linked.distance,

line_linked_width: pJS.particles.line_linked.width,

mode_grab_distance: pJS.interactivity.modes.grab.distance,

mode_bubble_distance: pJS.interactivity.modes.bubble.distance,

mode_bubble_size: pJS.interactivity.modes.bubble.size,

mode_repulse_distance: pJS.interactivity.modes.repulse.distance

};

pJS.fn.retinaInit = function(){

if(pJS.retina_detect && window.devicePixelRatio > 1){

pJS.canvas.pxratio = window.devicePixelRatio;

pJS.tmp.retina = true;

}

else{

pJS.canvas.pxratio = 1;

pJS.tmp.retina = false;

}

pJS.canvas.w = pJS.canvas.el.offsetWidth * pJS.canvas.pxratio;

pJS.canvas.h = pJS.canvas.el.offsetHeight * pJS.canvas.pxratio;

pJS.particles.size.value = pJS.tmp.obj.size_value * pJS.canvas.pxratio;

pJS.particles.size.anim.speed = pJS.tmp.obj.size_anim_speed * pJS.canvas.pxratio;

pJS.particles.move.speed = pJS.tmp.obj.move_speed * pJS.canvas.pxratio;

pJS.particles.line_linked.distance = pJS.tmp.obj.line_linked_distance * pJS.canvas.pxratio;

pJS.interactivity.modes.grab.distance = pJS.tmp.obj.mode_grab_distance * pJS.canvas.pxratio;

pJS.interactivity.modes.bubble.distance = pJS.tmp.obj.mode_bubble_distance * pJS.canvas.pxratio;

pJS.particles.line_linked.width = pJS.tmp.obj.line_linked_width * pJS.canvas.pxratio;

pJS.interactivity.modes.bubble.size = pJS.tmp.obj.mode_bubble_size * pJS.canvas.pxratio;

pJS.interactivity.modes.repulse.distance = pJS.tmp.obj.mode_repulse_distance * pJS.canvas.pxratio;

};

/* ---------- pJS functions - canvas ------------ */

pJS.fn.canvasInit = function(){

pJS.canvas.ctx = pJS.canvas.el.getContext('2d');

};

pJS.fn.canvasSize = function(){

pJS.canvas.el.width = pJS.canvas.w;

pJS.canvas.el.height = pJS.canvas.h;

if(pJS && pJS.interactivity.events.resize){

window.addEventListener('resize', function(){

pJS.canvas.w = pJS.canvas.el.offsetWidth;

pJS.canvas.h = pJS.canvas.el.offsetHeight;

/* resize canvas */

if(pJS.tmp.retina){

pJS.canvas.w *= pJS.canvas.pxratio;

pJS.canvas.h *= pJS.canvas.pxratio;

}

pJS.canvas.el.width = pJS.canvas.w;

pJS.canvas.el.height = pJS.canvas.h;

/* repaint canvas on anim disabled */

if(!pJS.particles.move.enable){

pJS.fn.particlesEmpty();

pJS.fn.particlesCreate();

pJS.fn.particlesDraw();

pJS.fn.vendors.densityAutoParticles();

}

/* density particles enabled */

pJS.fn.vendors.densityAutoParticles();

});

}

};

pJS.fn.canvasPaint = function(){

pJS.canvas.ctx.fillRect(0, 0, pJS.canvas.w, pJS.canvas.h);

};

pJS.fn.canvasClear = function(){

pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h);

};

/* --------- pJS functions - particles ----------- */

pJS.fn.particle = function(color, opacity, position){

/* size */

this.radius = (pJS.particles.size.random ? Math.random() : 1) * pJS.particles.size.value;

if(pJS.particles.size.anim.enable){

this.size_status = false;

this.vs = pJS.particles.size.anim.speed / 100;

if(!pJS.particles.size.anim.sync){

this.vs = this.vs * Math.random();

}

/* position */

this.x = position ? position.x : Math.random() * pJS.canvas.w;

this.y = position ? position.y : Math.random() * pJS.canvas.h;

/* check position - into the canvas */

if(this.x > pJS.canvas.w - this.radius*2) this.x = this.x - this.radius;

else if(this.x < this.radius*2) this.x = this.x + this.radius;

if(this.y > pJS.canvas.h - this.radius*2) this.y = this.y - this.radius;

else if(this.y < this.radius*2) this.y = this.y + this.radius;

/* check position - avoid overlap */

if(pJS.particles.move.bounce){

pJS.fn.vendors.checkOverlap(this, position);

}

/* color */

this.color = {};

if(typeof(color.value) == 'object'){

if(color.value instanceof Array){

var color_selected = color.value[Math.floor(Math.random() * pJS.particles.color.value.length)];

this.color.rgb = hexToRgb(color_selected);

}else{

if(color.value.r != undefined && color.value.g != undefined && color.value.b != undefined){

this.color.rgb = {

r: color.value.r,

g: color.value.g,

b: color.value.b

}

if(color.value.h != undefined && color.value.s != undefined && color.value.l != undefined){

this.color.hsl = {

h: color.value.h,

s: color.value.s,

l: color.value.l

}

else if(color.value == 'random'){

this.color.rgb = {

r: (Math.floor(Math.random() * (255 - 0 + 1)) + 0),

g: (Math.floor(Math.random() * (255 - 0 + 1)) + 0),

b: (Math.floor(Math.random() * (255 - 0 + 1)) + 0)

}

else if(typeof(color.value) == 'string'){

this.color = color;

this.color.rgb = hexToRgb(this.color.value);

}

/* opacity */

this.opacity = (pJS.particles.opacity.random ? Math.random() : 1) * pJS.particles.opacity.value;

if(pJS.particles.opacity.anim.enable){

this.opacity_status = false;

this.vo = pJS.particles.opacity.anim.speed / 100;

if(!pJS.particles.opacity.anim.sync){

this.vo = this.vo * Math.random();

}

/* animation - velocity for speed */

var velbase = {}

switch(pJS.particles.move.direction){

case 'top':

velbase = { x:0, y:-1 };

break;

case 'top-right':

velbase = { x:0.5, y:-0.5 };

break;

case 'right':

velbase = { x:1, y:-0 };

break;

case 'bottom-right':

velbase = { x:0.5, y:0.5 };

break;

case 'bottom':

velbase = { x:0, y:1 };

break;

case 'bottom-left':

velbase = { x:-0.5, y:1 };

break;

case 'left':

velbase = { x:-1, y:0 };

break;

case 'top-left':

velbase = { x:-0.5, y:-0.5 };

break;

default:

velbase = { x:0, y:0 };

break;

}

if(pJS.particles.move.straight){

this.vx = velbase.x;

this.vy = velbase.y;

if(pJS.particles.move.random){

this.vx = this.vx * (Math.random());

this.vy = this.vy * (Math.random());

}

}else{

this.vx = velbase.x + Math.random()-0.5;

this.vy = velbase.y + Math.random()-0.5;

}

// var theta = 2.0 * Math.PI * Math.random();

// this.vx = Math.cos(theta);

// this.vy = Math.sin(theta);

this.vx_i = this.vx;

this.vy_i = this.vy;

/* if shape is image */

var shape_type = pJS.particles.shape.type;

if(typeof(shape_type) == 'object'){

if(shape_type instanceof Array){

var shape_selected = shape_type[Math.floor(Math.random() * shape_type.length)];

this.shape = shape_selected;

}

}else{

this.shape = shape_type;

}

if(this.shape == 'image'){

var sh = pJS.particles.shape;

this.img = {

src: sh.image.src,

ratio: sh.image.width / sh.image.height

}

if(!this.img.ratio) this.img.ratio = 1;

if(pJS.tmp.img_type == 'svg' && pJS.tmp.source_svg != undefined){

pJS.fn.vendors.createSvgImg(this);

if(pJS.tmp.pushing){

this.img.loaded = false;

}

};

pJS.fn.particle.prototype.draw = function() {

var p = this;

if(p.radius_bubble != undefined){

var radius = p.radius_bubble;

}else{

var radius = p.radius;

}

if(p.opacity_bubble != undefined){

var opacity = p.opacity_bubble;

}else{

var opacity = p.opacity;

}

if(p.color.rgb){

var color_value = 'rgba('+p.color.rgb.r+','+p.color.rgb.g+','+p.color.rgb.b+','+opacity+')';

}else{

var color_value = 'hsla('+p.color.hsl.h+','+p.color.hsl.s+'%,'+p.color.hsl.l+'%,'+opacity+')';

}

pJS.canvas.ctx.fillStyle = color_value;

pJS.canvas.ctx.beginPath();

switch(p.shape){

case 'circle':

pJS.canvas.ctx.arc(p.x, p.y, radius, 0, Math.PI * 2, false);

break;

case 'edge':

pJS.canvas.ctx.rect(p.x-radius, p.y-radius, radius*2, radius*2);

break;

case 'triangle':

pJS.fn.vendors.drawShape(pJS.canvas.ctx, p.x-radius, p.y+radius / 1.66, radius*2, 3, 2);

break;

case 'polygon':

pJS.fn.vendors.drawShape(

pJS.canvas.ctx,

p.x - radius / (pJS.particles.shape.polygon.nb_sides/3.5), // startX

p.y - radius / (2.66/3.5), // startY

radius*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength

pJS.particles.shape.polygon.nb_sides, // sideCountNumerator

1 // sideCountDenominator

);

break;

case 'star':

pJS.fn.vendors.drawShape(

pJS.canvas.ctx,

p.x - radius*2 / (pJS.particles.shape.polygon.nb_sides/4), // startX

p.y - radius / (2*2.66/3.5), // startY

radius*2*2.66 / (pJS.particles.shape.polygon.nb_sides/3), // sideLength

pJS.particles.shape.polygon.nb_sides, // sideCountNumerator

2 // sideCountDenominator

);

break;

case 'image':

function draw(){

pJS.canvas.ctx.drawImage(

img_obj,

p.x-radius,

p.y-radius,

radius*2,

radius*2 / p.img.ratio

);

}

if(pJS.tmp.img_type == 'svg'){

var img_obj = p.img.obj;

}else{

var img_obj = pJS.tmp.img_obj;

}

if(img_obj){

draw();

}

break;

}

pJS.canvas.ctx.closePath();

if(pJS.particles.shape.stroke.width > 0){

pJS.canvas.ctx.strokeStyle = pJS.particles.shape.stroke.color;

pJS.canvas.ctx.lineWidth = pJS.particles.shape.stroke.width;

pJS.canvas.ctx.stroke();

}

pJS.canvas.ctx.fill();

};

pJS.fn.particlesCreate = function(){

for(var i = 0; i < pJS.particles.number.value; i++) {

pJS.particles.array.push(new pJS.fn.particle(pJS.particles.color, pJS.particles.opacity.value));

}

};

pJS.fn.particlesUpdate = function(){

for(var i = 0; i < pJS.particles.array.length; i++){

/* the particle */

var p = pJS.particles.array[i];

// var d = ( dx = pJS.interactivity.mouse.click_pos_x - p.x ) * dx + ( dy = pJS.interactivity.mouse.click_pos_y - p.y ) * dy;

// var f = -BANG_SIZE / d;

// if ( d < BANG_SIZE ) {

// var t = Math.atan2( dy, dx );

// p.vx = f * Math.cos(t);

// p.vy = f * Math.sin(t);

// }

/* move the particle */

if(pJS.particles.move.enable){

var ms = pJS.particles.move.speed/2;

p.x += p.vx * ms;

p.y += p.vy * ms;

}

/* change opacity status */

if(pJS.particles.opacity.anim.enable) {

if(p.opacity_status == true) {

if(p.opacity >= pJS.particles.opacity.value) p.opacity_status = false;

p.opacity += p.vo;

}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();

};</script>

/* -----------------------------------------------

/* How to use? : Check the GitHub README

/* ----------------------------------------------- */

/* To load a config file (particles.json) you need to host this demo (MAMP/WAMP/local)... */

particlesJS.load('particles-js', 'particles.json', function() {

console.log('particles.js loaded - callback');

});

/* Otherwise just put the config content (json): */

particlesJS('particles-js',

{

"particles": {

"number": {

"value": 80,

"density": {

"enable": true,

"value_area": 800

}

"color": {

"value": "#ffffff"

"shape": {

"type": "circle",

"stroke": {

"width": 0,

"color": "#000000"

"polygon": {

"nb_sides": 5

"image": {

"src": "img/github.svg",

"width": 100,

"height": 100

}

"opacity": {

"value": 0.5,

"random": false,

"anim": {

"enable": false,

"speed": 1,

"opacity_min": 0.1,

"sync": false

}

"size": {

"value": 5,

"random": true,

"anim": {

"enable": false,

"speed": 40,

"size_min": 0.1,

"sync": false

}

"line_linked": {

"enable": true,

"distance": 150,

"color": "#ffffff",

"opacity": 0.4,

"width": 1

"move": {

"enable": true,

"speed": 6,

"direction": "none",

"random": false,

"straight": false,

"out_mode": "out",

"attract": {

"enable": false,

"rotateX": 600,

"rotateY": 1200

}

"interactivity": {

"detect_on": "canvas",

"events": {

"onhover": {

"enable": true,

"mode": "repulse"

"onclick": {

"enable": true,

"mode": "push"

"resize": true

"modes": {

"grab": {

"distance": 400,

"line_linked": {

"opacity": 1

}

"bubble": {

"distance": 400,

"size": 40,

"duration": 2,

"opacity": 8,

"speed": 3

"repulse": {

"distance": 200

"push": {

"particles_nb": 4

"remove": {

"particles_nb": 2

}

"retina_detect": true,

"config_demo": {

"hide_card": false,

"background_color": "#b61924",

"background_image": "",

"background_position": "50% 50%",

"background_repeat": "no-repeat",

"background_size": "cover"

}

);

</script>

</body>

</html>

এখানে <div class="container"> ডিভিশনের মধ্যে আপনার কন্টেন্ট লিখতে হবে এবং #particles-js .container{ এর মধ্যে আপনার কন্টেন্ট স্টাইল করতে হবে বা css কোড লিখতে হবে। তবে এখানে position: absolute; কোডটি ঠিক রাখতে হবে।

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