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Share code trái tim của thủ khoa Lý bằng html css js

Share source heartbeat - HeartBeat Animation bằng css html js như trong phim chiếc bật lửa và nàng công chúa của thủ khoa Lý Tuân.

Phần HTML:

<HEAD>
  <TITLE> Heart </TITLE>
  <META NAME="Generator" CONTENT="EditPlus">
  <META NAME="Author" CONTENT="">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="">
</HEAD>
<BODY>
  <div class="box">
    <canvas id="pinkboard"></canvas>
  </div>
  <div class="center-text" , style="background-color:rgb(0, 0, 0);
        width: 100%;
        color: rgb(225, 12, 168);
        height:100%;
        font-size: 31px;
        font-style: italic;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 5px;
        text-align: center;">Ngọc</div>
</BODY>

Phần CSS:

html, body {
  height: 100%;
  padding: 0;
  margin: 0;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
 
}
 
.box {
  width: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
}
 
canvas {
  position: absolute;
  width: 100%;
  height: 100%;
}
#pinkboard {
  position: relative;
  margin: auto;
  height: 500px;
  width: 500px;
  animation: animate 1.3s infinite;
}
 
#pinkboard:before, #pinkboard:after {
  content: '';
  position: absolute;
  background: #FF5CA4;
  width: 100px;
  height: 160px;
  border-top-left-radius: 50px;
  border-top-right-radius: 50px;
}
 
#pinkboard:before {
  left: 100px;
  transform: rotate(-45deg);
  transform-origin: 0 100%;
  box-shadow: 0 14px 28px rgba(0,0,0,0.25),
              0 10px 10px rgba(0,0,0,0.22);
}
 
#pinkboard:after {
  left: 0;
  transform: rotate(45deg);
  transform-origin: 100% 100%;
}
 
@keyframes animate {
  0% {
    transform: scale(1);
  }
  30% {
    transform: scale(.8);
  }
  60% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}

Phần JS:

var settings = {
    particles: {
        length: 2000,
        duration: 2,
        velocity: 100,
        effect: -1.3,
        size: 13,
    },
};

(function() {
    var b = 0;
    var c = ["ms", "moz", "webkit", "o"];
    for (var a = 0; a < c.length && !window.requestAnimationFrame; ++a) {
        window.requestAnimationFrame = window[c[a] + "RequestAnimationFrame"];
        window.cancelAnimationFrame = window[c[a] + "CancelAnimationFrame"] || window[c[a] + "CancelRequestAnimationFrame"]
    }
    if (!window.requestAnimationFrame) {
        window.requestAnimationFrame = function(h, e) {
            var d = new Date().getTime();
            var f = Math.max(0, 16 - (d - b));
            var g = window.setTimeout(function() {
                h(d + f)
            }, f);
            b = d + f;
            return g
        }
    }
    if (!window.cancelAnimationFrame) {
        window.cancelAnimationFrame = function(d) {
            clearTimeout(d)
        }
    }
}());

var Point = (function() {
    function Point(x, y) {
        this.x = (typeof x !== 'undefined') ? x : 0;
        this.y = (typeof y !== 'undefined') ? y : 0;
    }
    Point.prototype.clone = function() {
        return new Point(this.x, this.y);
    };
    Point.prototype.length = function(length) {
        if (typeof length == 'undefined')
            return Math.sqrt(this.x * this.x + this.y * this.y);
        this.normalize();
        this.x *= length;
        this.y *= length;
        return this;
    };
    Point.prototype.normalize = function() {
        var length = this.length();
        this.x /= length;
        this.y /= length;
        return this;
    };
    return Point;
})();

var Particle = (function() {
    function Particle() {
        this.position = new Point();
        this.velocity = new Point();
        this.acceleration = new Point();
        this.age = 0;
    }
    Particle.prototype.initialize = function(x, y, dx, dy) {
        this.position.x = x;
        this.position.y = y;
        this.velocity.x = dx;
        this.velocity.y = dy;
        this.acceleration.x = dx * settings.particles.effect;
        this.acceleration.y = dy * settings.particles.effect;
        this.age = 0;
    };
    Particle.prototype.update = function(deltaTime) {
        this.position.x += this.velocity.x * deltaTime;
        this.position.y += this.velocity.y * deltaTime;
        this.velocity.x += this.acceleration.x * deltaTime;
        this.velocity.y += this.acceleration.y * deltaTime;
        this.age += deltaTime;
    };
    Particle.prototype.draw = function(context, image) {
        function ease(t) {
            return (--t) * t * t + 1;
        }
        var size = image.width * ease(this.age / settings.particles.duration);
        context.globalAlpha = 1 - this.age / settings.particles.duration;
        context.drawImage(image, this.position.x - size / 2, this.position.y - size / 2, size, size);
    };
    return Particle;
})();

var ParticlePool = (function() {
    var particles,
        firstActive = 0,
        firstFree = 0,
        duration = settings.particles.duration;

    function ParticlePool(length) {
        particles = new Array(length);
        for (var i = 0; i < particles.length; i++)
            particles[i] = new Particle();
    }
    ParticlePool.prototype.add = function(x, y, dx, dy) {
        particles[firstFree].initialize(x, y, dx, dy);
        firstFree++;
        if (firstFree == particles.length) firstFree = 0;
        if (firstActive == firstFree) firstActive++;
        if (firstActive == particles.length) firstActive = 0;
    };
    ParticlePool.prototype.update = function(deltaTime) {
        var i;
        if (firstActive < firstFree) {
            for (i = firstActive; i < firstFree; i++)
                particles[i].update(deltaTime);
        }
        if (firstFree < firstActive) {
            for (i = firstActive; i < particles.length; i++)
                particles[i].update(deltaTime);
            for (i = 0; i < firstFree; i++)
                particles[i].update(deltaTime);
        }

        while (particles[firstActive].age >= duration && firstActive != firstFree) {
            firstActive++;
            if (firstActive == particles.length) firstActive = 0;
        }
    };
    ParticlePool.prototype.draw = function(context, image) {
        // draw active particles
        if (firstActive < firstFree) {
            for (i = firstActive; i < firstFree; i++)
                particles[i].draw(context, image);
        }
        if (firstFree < firstActive) {
            for (i = firstActive; i < particles.length; i++)
                particles[i].draw(context, image);
            for (i = 0; i < firstFree; i++)
                particles[i].draw(context, image);
        }
    };
    return ParticlePool;
})();
(function(canvas) {
    var context = canvas.getContext('2d'),
        particles = new ParticlePool(settings.particles.length),
        particleRate = settings.particles.length / settings.particles.duration,
        time;

    function pointOnHeart(t) {
        return new Point(
            160 * Math.pow(Math.sin(t), 3),
            130 * Math.cos(t) - 50 * Math.cos(2 * t) - 20 * Math.cos(3 * t) - 10 * Math.cos(4 * t) + 25
        );
    }
    var image = (function() {
        var canvas = document.createElement('canvas'),
            context = canvas.getContext('2d');
        canvas.width = settings.particles.size;
        canvas.height = settings.particles.size;

        function to(t) {
            var point = pointOnHeart(t);
            point.x = settings.particles.size / 2 + point.x * settings.particles.size / 350;
            point.y = settings.particles.size / 2 - point.y * settings.particles.size / 350;
            return point;
        }
        context.beginPath();
        var t = -Math.PI;
        var point = to(t);
        context.moveTo(point.x, point.y);
        while (t < Math.PI) {
            t += 0.01;
            point = to(t);
            context.lineTo(point.x, point.y);
        }
        context.closePath();
        context.fillStyle = '#FF5CA4';
        context.fill();
        var image = new Image();
        image.src = canvas.toDataURL();
        return image;
    })();

    function render() {
        requestAnimationFrame(render);
        var newTime = new Date().getTime() / 1000,
            deltaTime = newTime - (time || newTime);
        time = newTime;
        context.clearRect(0, 0, canvas.width, canvas.height);
        var amount = particleRate * deltaTime;
        for (var i = 0; i < amount; i++) {
            var pos = pointOnHeart(Math.PI - 2 * Math.PI * Math.random());
            var dir = pos.clone().length(settings.particles.velocity);
            particles.add(canvas.width / 2 + pos.x, canvas.height / 2 - pos.y, dir.x, -dir.y);
        }
        particles.update(deltaTime);
        particles.draw(context, image);
    }

    function onResize() {
        canvas.width = canvas.clientWidth;
        canvas.height = canvas.clientHeight;
    }
    window.onresize = onResize;
    setTimeout(function() {
        onResize();
        render();
    }, 10);
})(document.getElementById('pinkboard'));

Link demo: Tại Đây

Rating: 10 (1 Votes)