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var Boid = function ( x, y, angle ) {

this.x = x;

this.y = y;

this.angle = Math.pow( Math.random(), 20 ) + angle;

this.dx = Math.cos( this.angle );

this.dy = Math.sin( this.angle );

this.life = Math.random() * 100 + 100;

this.dead = false;

this.update = function () {

context.strokeStyle = '#808080';

context.beginPath();

context.moveTo( this.x, this.y );

this.x += this.dx * 2;

this.y += this.dy * 2;

this.life -= 1;

context.lineTo( this.x, this.y );

context.stroke();

var index = ( Math.floor( this.x ) + width * Math.floor( this.y ) ) * 4;

if ( this.life <= 0 ) this.kill();

if ( data[ index + 3 ] > 0 ) this.kill();

if ( this.x < 0 || this.x > width ) this.kill();

if ( this.y < 0 || this.y > height ) this.kill();

}

this.kill = function () {

boids.splice( boids.indexOf( this ), 1 );

this.dead = true;

}

}

/*

var body = document.body,

html = document.documentElement;

var height = Math.max( body.scrollHeight, body.offsetHeight,

html.clientHeight, html.scrollHeight, html.offsetHeight );

*/

var width = window.screen.width;

var height = window.screen.height;

/*

var width = window.innerWidth;

var height = window.innerHeight;

*/

var canvas = document.getElementById( 'world' );

canvas.width = width;

canvas.height = height;

var context = canvas.getContext( '2d' );

var image, data;

var boids = [];

boids.push( new Boid( width / 2, height / 2, Math.random() * 180 * Math.PI / 180 ) );

setInterval( function () {

image = context.getImageData( 0, 0, width, height );

data = image.data;

for ( var i = 0; i < boids.length; i ++ ) {

var boid = boids[ i ];

boid.update();

if ( !boid.dead && Math.random() > 0.5 && boids.length < 500 ) {

boids.push( new Boid( boid.x, boid.y, ( Math.random() > 0.5 ? 90 : - 90 ) * Math.PI / 180 + boid.angle ) );

}

}

}, 1000 / 60 );

$('.button--bubble').each(function() {

var $circlesTopLeft = $(this).parent().find('.circle.top-left');

var $circlesBottomRight = $(this).parent().find('.circle.bottom-right');

var tl = new TimelineLite();

var tl2 = new TimelineLite();

var btTl = new TimelineLite({ paused: true });

tl.to($circlesTopLeft, 1.2, { x: -25, y: -25, scaleY: 2, ease: SlowMo.ease.config(0.1, 0.7, false) });

tl.to($circlesTopLeft.eq(0), 0.1, { scale: 0.2, x: '+=6', y: '-=2' });

tl.to($circlesTopLeft.eq(1), 0.1, { scaleX: 1, scaleY: 0.8, x: '-=10', y: '-=7' }, '-=0.1');

tl.to($circlesTopLeft.eq(2), 0.1, { scale: 0.2, x: '-=15', y: '+=6' }, '-=0.1');

tl.to($circlesTopLeft.eq(0), 1, { scale: 0, x: '-=5', y: '-=15', opacity: 0 });

tl.to($circlesTopLeft.eq(1), 1, { scaleX: 0.4, scaleY: 0.4, x: '-=10', y: '-=10', opacity: 0 }, '-=1');

tl.to($circlesTopLeft.eq(2), 1, { scale: 0, x: '-=15', y: '+=5', opacity: 0 }, '-=1');

var tlBt1 = new TimelineLite();

var tlBt2 = new TimelineLite();

tlBt1.set($circlesTopLeft, { x: 0, y: 0, rotation: -45 });

tlBt1.add(tl);

tl2.set($circlesBottomRight, { x: 0, y: 0 });

tl2.to($circlesBottomRight, 1.1, { x: 30, y: 30, ease: SlowMo.ease.config(0.1, 0.7, false) });

tl2.to($circlesBottomRight.eq(0), 0.1, { scale: 0.2, x: '-=6', y: '+=3' });

tl2.to($circlesBottomRight.eq(1), 0.1, { scale: 0.8, x: '+=7', y: '+=3' }, '-=0.1');

tl2.to($circlesBottomRight.eq(2), 0.1, { scale: 0.2, x: '+=15', y: '-=6' }, '-=0.2');

tl2.to($circlesBottomRight.eq(0), 1, { scale: 0, x: '+=5', y: '+=15', opacity: 0 });

tl2.to($circlesBottomRight.eq(1), 1, { scale: 0.4, x: '+=7', y: '+=7', opacity: 0 }, '-=1');

tl2.to($circlesBottomRight.eq(2), 1, { scale: 0, x: '+=15', y: '-=5', opacity: 0 }, '-=1');

tlBt2.set($circlesBottomRight, { x: 0, y: 0, rotation: 45 });

tlBt2.add(tl2);

btTl.add(tlBt1);

btTl.to($(this).parent().find('.button.effect-button'), 0.8, { scaleY: 1.1 }, 0.1);

btTl.add(tlBt2, 0.2);

btTl.to($(this).parent().find('.button.effect-button'), 1.8, { scale: 1, ease: Elastic.easeOut.config(1.2, 0.4) }, 1.2);

btTl.timeScale(2.6);

$(this).on('mouseover', function() {

btTl.restart();

});

});

$('.button2--bubble').each(function() {

var $circlesTopLeft = $(this).parent().find('.circle.top-left');

var $circlesBottomRight = $(this).parent().find('.circle.bottom-right');

var tl = new TimelineLite();

var tl2 = new TimelineLite();

var btTl = new TimelineLite({ paused: true });

tl.to($circlesTopLeft, 1.2, { x: -25, y: -25, scaleY: 2, ease: SlowMo.ease.config(0.1, 0.7, false) });

tl.to($circlesTopLeft.eq(0), 0.1, { scale: 0.2, x: '+=6', y: '-=2' });

tl.to($circlesTopLeft.eq(1), 0.1, { scaleX: 1, scaleY: 0.8, x: '-=10', y: '-=7' }, '-=0.1');

tl.to($circlesTopLeft.eq(2), 0.1, { scale: 0.2, x: '-=15', y: '+=6' }, '-=0.1');

tl.to($circlesTopLeft.eq(0), 1, { scale: 0, x: '-=5', y: '-=15', opacity: 0 });

tl.to($circlesTopLeft.eq(1), 1, { scaleX: 0.4, scaleY: 0.4, x: '-=10', y: '-=10', opacity: 0 }, '-=1');

tl.to($circlesTopLeft.eq(2), 1, { scale: 0, x: '-=15', y: '+=5', opacity: 0 }, '-=1');

var tlBt1 = new TimelineLite();

var tlBt2 = new TimelineLite();

tlBt1.set($circlesTopLeft, { x: 0, y: 0, rotation: -45 });

tlBt1.add(tl);

tl2.set($circlesBottomRight, { x: 0, y: 0 });

tl2.to($circlesBottomRight, 1.1, { x: 30, y: 30, ease: SlowMo.ease.config(0.1, 0.7, false) });

tl2.to($circlesBottomRight.eq(0), 0.1, { scale: 0.2, x: '-=6', y: '+=3' });

tl2.to($circlesBottomRight.eq(1), 0.1, { scale: 0.8, x: '+=7', y: '+=3' }, '-=0.1');

tl2.to($circlesBottomRight.eq(2), 0.1, { scale: 0.2, x: '+=15', y: '-=6' }, '-=0.2');

tl2.to($circlesBottomRight.eq(0), 1, { scale: 0, x: '+=5', y: '+=15', opacity: 0 });

tl2.to($circlesBottomRight.eq(1), 1, { scale: 0.4, x: '+=7', y: '+=7', opacity: 0 }, '-=1');

tl2.to($circlesBottomRight.eq(2), 1, { scale: 0, x: '+=15', y: '-=5', opacity: 0 }, '-=1');

tlBt2.set($circlesBottomRight, { x: 0, y: 0, rotation: 45 });

tlBt2.add(tl2);

btTl.add(tlBt1);

btTl.to($(this).parent().find('.button.effect-button'), 0.8, { scaleY: 1.1 }, 0.1);

btTl.add(tlBt2, 0.2);

btTl.to($(this).parent().find('.button.effect-button'), 1.8, { scale: 1, ease: Elastic.easeOut.config(1.2, 0.4) }, 1.2);

btTl.timeScale(2.6);

$(this).on('mouseover', function() {

btTl.restart();

});

});