Restore smooth realtime fall ballistics

2026-08-05 20:39:19 +02:00
parent c6a1037611
commit 66110be76d
5 changed files with 55 additions and 30 deletions
@@ -2,7 +2,12 @@ import assert from 'node:assert/strict';
 import fs from 'node:fs';
 import vm from 'node:vm';
 import { getRtwCenters } from '../www/core/rtw_centers.js';
-import { buildRtwTickPositions, selectLocalRtwPacket } from '../www/views/realtime.js';
+import {
+  applyPeakHold,
+  applyRealtimeBarBallistics,
+  buildRtwTickPositions,
+  selectLocalRtwPacket,
+} from '../www/views/realtime.js';

 const source = fs.readFileSync(new URL('../www/core/audio.js', import.meta.url), 'utf8');
 const configSource = fs.readFileSync(new URL('../www/core/config.js', import.meta.url), 'utf8');
@@ -118,4 +123,33 @@ for (const mode of ['1_3', '1_6', '1_12']) {
  }
 }

+const range = { bottom: -36, top: 9 };
+const peakNow = performance.now();
+const peakState = {
+  peakHold: new Float32Array([8]),
+  lastPeakTime: [peakNow - 3000],
+  holdSampleTs: peakNow - (1000 / 60),
+};
+const repeatedPeakAnchor = new Float32Array([-36]);
+const peakAfterOneFrame = applyPeakHold(peakState, repeatedPeakAnchor, {
+  RTA_PEAK_HOLD_MODE: 'fall',
+  RTA_PEAK_HOLD_SEC: 2.5,
+  RTA_PEAK_DECAY_DB_PER_S: 20,
+}, range)[0];
+assert.ok(peakAfterOneFrame < 7.8 && peakAfterOneFrame > 7.5,
+  `a repeated native peak anchor must still fall once per display frame, got ${peakAfterOneFrame}`);
+
+const barNow = performance.now();
+const barState = {
+  rtBarLevels: new Float32Array([8]),
+  rtBarPeakTimes: [barNow - 1000],
+  lastRtBarTs: barNow - (1000 / 60),
+};
+const barAfterOneFrame = applyRealtimeBarBallistics(barState, new Float32Array([-36]), {
+  REALTIME_BAR_HOLD_MS: 0,
+  REALTIME_BAR_DECAY_DB_PER_S: 20,
+}, range)[0];
+assert.ok(barAfterOneFrame < 7.8 && barAfterOneFrame > 7.5,
+  `a repeated native bar anchor must still fall once per display frame, got ${barAfterOneFrame}`);
+
 console.log('RTA profile regression tests passed');