唯美好看的鼠标滑动彩色泡泡特效JS代码

Parkmimi

效果如上图所示
下面直接贴代码，非原创，来自小高教学网

[JavaScript] 纯文本查看 复制代码

<!--效果html开始-->
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<script type="text/javascript">
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<script type="text/javascript" >
function Particle( x, y, radius ) {
        this.init( x, y, radius );
}

Particle.prototype = {

        init: function( x, y, radius ) {

                this.alive = true;

                this.radius = radius || 10;
                this.wander = 0.15;
                this.theta = random( TWO_PI );
                this.drag = 0.92;
                this.color = '#fff';

                this.x = x || 0.0;
                this.y = y || 0.0;

                this.vx = 0.0;
                this.vy = 0.0;
        },

        move: function() {

                this.x += this.vx;
                this.y += this.vy;

                this.vx *= this.drag;
                this.vy *= this.drag;

                this.theta += random( -0.5, 0.5 ) * this.wander;
                this.vx += sin( this.theta ) * 0.1;
                this.vy += cos( this.theta ) * 0.1;

                this.radius *= 0.96;
                this.alive = this.radius > 0.5;
        },

        draw: function( ctx ) {

                ctx.beginPath();
                ctx.arc( this.x, this.y, this.radius, 0, TWO_PI );
                ctx.fillStyle = this.color;
                ctx.fill();
        }
};

// ----------------------------------------
// Example
// ----------------------------------------

var MAX_PARTICLES = 280;
var COLOURS = [ '#69D2E7', '#A7DBD8', '#E0E4CC', '#F38630', '#FA6900', '#FF4E50', '#F9D423' ];

var particles = [];
var pool = [];

var demo = Sketch.create({
        container: document.getElementById( 'container' )
});

demo.setup = function() {

        // Set off some initial particles.
        var i, x, y;

        for ( i = 0; i < 20; i++ ) {
                x = ( demo.width * 0.5 ) + random( -100, 100 );
                y = ( demo.height * 0.5 ) + random( -100, 100 );
                demo.spawn( x, y );
        }
};

demo.spawn = function( x, y ) {

        if ( particles.length >= MAX_PARTICLES )
                pool.push( particles.shift() );

        particle = pool.length ? pool.pop() : new Particle();
        particle.init( x, y, random( 5, 20 ) );

        particle.wander = random( 0.5, 2.0 );
        particle.color = random( COLOURS );
        particle.drag = random( 0.7, 0.99 );//0.9 0.99

        theta = random( TWO_PI );
        force = random( 2, 8 );

        particle.vx = sin( theta ) * force;
        particle.vy = cos( theta ) * force;

        particles.push( particle );
}

demo.update = function() {

        var i, particle;

        for ( i = particles.length - 1; i >= 0; i-- ) {

                particle = particles[i];

                if ( particle.alive ) particle.move();
                else pool.push( particles.splice( i, 1 )[0] );
        }
};

demo.draw = function() {

        demo.globalCompositeOperation  = 'lighter';
        
        for ( var i = particles.length - 1; i >= 0; i-- ) {
                particles[i].draw( demo );
        }
};

demo.mousemove = function() {

        var particle, theta, force, touch, max, i, j, n;

        for ( i = 0, n = demo.touches.length; i < n; i++ ) {

                touch = demo.touches[i], max = random( 1, 4 );
                for ( j = 0; j < max; j++ ) demo.spawn( touch.x, touch.y );
        }
};
</script>
<!--效果html结束-->

</div>

妖妖零

移动的时候效果不好，一坨白...

Bad丶Boy

楼主自己写的吗？

dariuscn

楼主真厉害。膜拜中。。。

chen4321

没有预览图？不懂js

qcby

谢谢~试试看