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byrongamatosandClaude Sonnet 4.6
66aa829362
Partial cut (Option A) per contract ~/Feedback-harness/hive/plans/h3d-cut13-contract.md. What moves: - lookaheadEndTime (factory-private) — 1 beyond-subst: _measureStarts → getMeasureStarts() - lookaheadBootstrapTime (exported) - lookaheadComputeFretBounds (exported) — uses lowerBoundT from geometry.js (new import) - lookaheadTargetWorldX (exported) DI delta: +9 params to createCamera() Constants (+4): NFRETS=24, CAM_LOOKAHEAD_MEASURES=9, CAM_LOOKAHEAD_SEC=3.0, CAM_FRET_EDGE_BLEND=0.1 Getter (+1): getMeasureStarts: () => _measureStarts Fn refs (+4): validString, getChartAnchorAt, xFretMid, xFret Total createCamera() DI: 57 (was 48) Deferred to cut 15 (U-section entanglement): lookaheadSmoothCamStep, _applyNoteCamTargets — write S-section state vars Region B (per-frame cam target block, ~90 lines) — reads 8 update() locals Region C (song-change + bootstrap block, ~174 lines) — U-section init code Call sites unchanged (destructured names unchanged): lookaheadComputeFretBounds: lines 7474, 7941 lookaheadBootstrapTime: line 7939 lookaheadTargetWorldX: lines 7943, 10062 Tests: 17 new (highway_3d_camera_lookahead.test.js), 2 retargeted to cameraSrc. Suite: 1353/1355 pass (2 pre-existing failures in unrelated test files). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014uZ169yfoFYArXz962g7KW