51 lines
953 B
HTML
51 lines
953 B
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script src="https://js.cx/libs/animate.js"></script>
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<link rel="stylesheet" href="style.css">
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</head>
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<body>
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<div id="field">
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<img src="https://js.cx/clipart/ball.svg" width="40" height="40" id="ball">
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</div>
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<script>
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function makeEaseOut(timing) {
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return function(timeFraction) {
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return 1 - timing(1 - timeFraction);
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}
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}
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function bounce(timeFraction) {
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for (let a = 0, b = 1, result; 1; a += b, b /= 2) {
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if (timeFraction >= (7 - 4 * a) / 11) {
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return -Math.pow((11 - 6 * a - 11 * timeFraction) / 4, 2) + Math.pow(b, 2)
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}
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}
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}
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ball.onclick = function() {
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let to = field.clientHeight - ball.clientHeight;
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animate({
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duration: 2000,
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timing: makeEaseOut(bounce),
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draw(progress) {
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ball.style.top = to * progress + 'px'
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}
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});
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};
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</script>
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</body>
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</html>
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