21 lines
680 B
JavaScript
21 lines
680 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.tween = tween;
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const easeOut = (t) => 1 - Math.pow((1 - t), 5);
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function tween(props) {
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const { from, to, duration, onUpdate, onFinish } = props;
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const startTime = performance.now();
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const tick = () => {
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const current = performance.now();
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const elapsedTime = Math.min(current - startTime, duration);
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const currentValue = from + (to - from) * easeOut(elapsedTime / duration);
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if (elapsedTime === duration) {
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onFinish();
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return;
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}
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onUpdate(currentValue);
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requestAnimationFrame(tick);
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};
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tick();
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}
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