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11 lines
321 B
TypeScript
11 lines
321 B
TypeScript
// eslint-disable-next-line import/prefer-default-export
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export function easeInOutCubic(t: number, b: number, c: number, d: number) {
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const cc = c - b;
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t /= d / 2;
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if (t < 1) {
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return (cc / 2) * t * t * t + b;
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}
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// eslint-disable-next-line no-return-assign
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return (cc / 2) * ((t -= 2) * t * t + 2) + b;
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}
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