数字我 Digital Me：全量入库（大文件走 Git LFS）

2026-10-10 16:24:43 +08:00
commit 0593ff7e62
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+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import {
+  INK_MASK_FRAME_COUNT,
+  INK_MASK_FRAME_MS,
+  inkCoverageRadius,
+  inkEdgeRadius,
+  inkMaskFrameIndex,
+} from '../src/lib/inkTransition.ts';
+
+test('ink coverage reaches every viewport corner from the clicked origin', () => {
+  const viewport = { width: 1440, height: 900, originX: 1060, originY: 140 };
+  const radius = inkCoverageRadius(viewport);
+  const farthestCorner = Math.max(
+    Math.hypot(viewport.originX, viewport.originY),
+    Math.hypot(viewport.width - viewport.originX, viewport.originY),
+    Math.hypot(viewport.originX, viewport.height - viewport.originY),
+    Math.hypot(viewport.width - viewport.originX, viewport.height - viewport.originY),
+  );
+
+  assert.ok(radius > farthestCorner);
+});
+
+test('ink edge is organic but remains close enough to guarantee coverage', () => {
+  const base = 1000;
+  const samples = Array.from({ length: 72 }, (_, index) => inkEdgeRadius(base, index / 72 * Math.PI * 2, 1.8));
+
+  assert.ok(new Set(samples.map((value) => Math.round(value))).size > 20);
+  assert.ok(Math.min(...samples) > base * 0.9);
+  assert.ok(Math.max(...samples) < base * 1.1);
+});
+
+test('ink mask sequence matches the shipped APNG and clamps to its final frame', () => {
+  assert.equal(INK_MASK_FRAME_COUNT, 124);
+  assert.equal(inkMaskFrameIndex(0), 0);
+  assert.equal(inkMaskFrameIndex(INK_MASK_FRAME_MS * 10), 10);
+  assert.equal(inkMaskFrameIndex(60_000), 123);
+  assert.equal(inkMaskFrameIndex(-100), 0);
+});