Created
September 22, 2016 10:30
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Easing function proof of concept
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| <html> | |
| <head> | |
| <style> | |
| .orange { | |
| height: 64; | |
| width: 64; | |
| margin-top: 64; | |
| margin-left: 64; | |
| background-color: orange; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="box" class="orange"></div> | |
| <script> | |
| function easeInOutCubic (t, b, c, d) { | |
| t /= d/2; | |
| if (t < 1) return c/2*t*t*t + b; | |
| t -= 2; | |
| return c/2*(t*t*t + 2) + b; | |
| }; | |
| var start = null; | |
| var box = document.getElementById('box'); | |
| function paint(timestamp) { | |
| if (!start) { | |
| start = timestamp | |
| } | |
| var value = easeInOutCubic(timestamp - start, 64, 512, 2000); | |
| box.style.marginLeft = value; | |
| if (value < 64 + 512) { | |
| requestAnimationFrame(paint); | |
| } else { | |
| start = null; | |
| } | |
| } | |
| function move() { | |
| window.requestAnimationFrame(paint); | |
| } | |
| </script> | |
| </body> | |
| </html> | |
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