JSPM

ease-component

1.0.0
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    • License MIT

    Easing functions (for canvas etc)

    Package Exports

    • ease-component

    This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (ease-component) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

    Readme

    ease

    Easing functions (for canvas etc)

    • linear
    • inQuad
    • outQuad
    • inOutQuad
    • inCube
    • outCube
    • inOutCube
    • inQuart
    • outQuart
    • inOutQuart
    • inQuint
    • outQuint
    • inOutQuint
    • inSine
    • outSine
    • inOutSine
    • inExpo
    • outExpo
    • inOutExpo
    • inCirc
    • outCirc
    • inOutCirc
    • inBack
    • outBack
    • inOutBack
    • inBounce
    • outBounce
    • inOutBounce

    Aliases

    • in-quad
    • out-quad
    • in-out-quad
    • in-cube
    • out-cube
    • in-out-cube
    • in-quart
    • out-quart
    • in-out-quart
    • in-quint
    • out-quint
    • in-out-quint
    • in-sine
    • out-sine
    • in-out-sine
    • in-expo
    • out-expo
    • in-out-expo
    • in-circ
    • out-circ
    • in-out-circ
    • in-back
    • out-back
    • in-out-back
    • in-bounce
    • out-bounce
    • in-out-bounce

    Example

    var ease = require('ease');
    var requestAnimationFrame = require('raf');
    var canvas = document.querySelector('canvas');
    var ctx = canvas.getContext('2d');
    
    var stop = false;
    function animate() {
      if (stop) return;
      requestAnimationFrame(animate);
      draw();
    }
    
    var startx = 20;
    var x = startx;
    var destx = 300;
    var y = 400 / 2;
    var duration = 1000;
    var start = Date.now();
    var end = start + duration;
    
    function draw() {
      var now = Date.now();
      if (now - start >= duration) stop = true;
      var p = (now - start) / duration;
      val = ease.inOutBounce(p);
      x = startx + (destx - startx) * val;
      canvas.width = canvas.width;
      ctx.fillStyle = 'red';
      ctx.arc(x, y, 10, 0, Math.PI * 2, false);
      ctx.fill();
    }
    
    animate();
    

    License

    MIT