37 lines
1.1 KiB
TypeScript
37 lines
1.1 KiB
TypeScript
"use client";
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import { toBeatCells, toSparkline } from "@/lib/pace/beatmap";
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interface BeatMapProps {
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beatMap: number[];
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}
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// 爽点节拍图（UX §6.4）：beat_map(int 序列) → ▁▃▅ 柱状条。
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// 渲染为定高柱（CSS height%），同时给文本 sparkline 作无障碍标签（a11y §10）。
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// 静态高度，无动画 → 天然尊重 prefers-reduced-motion。
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export function BeatMap({ beatMap }: BeatMapProps) {
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const cells = toBeatCells(beatMap);
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if (cells.length === 0) {
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return <span className="text-xs text-ink-soft/60">无节拍数据</span>;
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}
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const spark = toSparkline(beatMap);
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return (
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<div className="max-w-full overflow-x-auto pb-1">
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<div
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className="flex h-12 min-w-full items-end gap-0.5"
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role="img"
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aria-label={`爽点节拍图 ${spark}`}
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>
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{cells.map((cell, i) => (
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<div
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key={i}
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className="min-w-[4px] flex-1 rounded-t bg-cinnabar/70"
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style={{ height: `${cell.heightPct}%` }}
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title={`第${i + 1}拍 强度${cell.value}`}
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/>
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))}
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</div>
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</div>
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);
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}
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