23 lines
521 B
JavaScript
23 lines
521 B
JavaScript
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var b1 = 4 / 11,
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b2 = 6 / 11,
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b3 = 8 / 11,
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b4 = 3 / 4,
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b5 = 9 / 11,
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b6 = 10 / 11,
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b7 = 15 / 16,
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b8 = 21 / 22,
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b9 = 63 / 64,
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b0 = 1 / b1 / b1;
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export function bounceIn(t) {
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return 1 - bounceOut(1 - t);
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}
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export function bounceOut(t) {
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return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9;
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}
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export function bounceInOut(t) {
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return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2;
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}
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