89 lines
2.1 KiB
TypeScript
89 lines
2.1 KiB
TypeScript
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import { render_and_copy } from "./common.tsx";
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const Digit = ({
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length_per_s,
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digits,
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}: {
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length_per_s: number;
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digits: (number | string)[];
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}) => (
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<div
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style={{
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display: "inline-block",
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fontVariant: "tabular-nums",
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overflow: "hidden",
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height: "1rem",
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}}
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>
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<div
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style={{
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transform: "translateY(-100%)",
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animation: `spin ${
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(length_per_s * digits.length) / 60
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}s 0s reverse infinite alternate steps(${digits.length}, end)`,
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position: "relative",
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}}
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>
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{...digits.map(d => (
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<div
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style={{
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height: "1rem",
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transform: "translateY(75%)",
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textAlign: "right",
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}}
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>
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{d}
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</div>
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))}
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</div>
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</div>
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);
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// silly
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const make_digits = ({
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up,
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cycle_up,
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cycle_down,
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}: {
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up: number[];
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cycle_up: number;
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cycle_down: number;
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}) => [
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...new Array(cycle_up).flatMap(() => up),
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...new Array(cycle_down).flatMap((_, i) =>
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i == 0 ? up.toReversed().slice(1) : up.toReversed()
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),
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];
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console.log(
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make_digits({
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up: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
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cycle_up: 6,
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cycle_down: 10,
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})
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);
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render_and_copy(
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<span>
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<Digit
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length_per_s={60}
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digits={new Array(20).fill(undefined).map((_, i) =>
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(i < 10 ? 10 - i : -(i - 10))
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.toString()
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.replace(/-([0-9])$/, "-0$1")
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.replace(/^([0-9])$/, "0$1")
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)}
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/>
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:
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<Digit
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length_per_s={1}
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digits={new Array(60 * 20)
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.fill(undefined)
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.map((_, i) =>
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(i < 30 * 60 ? 59 - (i % 60) : i % 60)
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.toString()
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.padStart(2, "0")
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)}
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/>
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</span>
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);
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