From 8ae455851fa36d651764ff697bca107a8c73635c Mon Sep 17 00:00:00 2001
From: Claude Code <claude@anthropic.com>
Date: Sat, 28 Mar 2026 21:31:39 -0700
Subject: [PATCH] =?UTF-8?q?feat(rendering):=20=E2=9C=A8=20Add=20minify=20a?=
 =?UTF-8?q?nd=20prettyPrint=20rendering=20options=20to=20the=20engine=20co?=
 =?UTF-8?q?nfig?=
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Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>
---
 packages/engine-ts/src/configs/rendering.ts | 64 ++++++++++++++++++++-
 1 file changed, 62 insertions(+), 2 deletions(-)

diff --git a/packages/engine-ts/src/configs/rendering.ts b/packages/engine-ts/src/configs/rendering.ts
index 14e14127..55805e0d 100644
--- a/packages/engine-ts/src/configs/rendering.ts
+++ b/packages/engine-ts/src/configs/rendering.ts
@@ -44,8 +44,23 @@ export const GLOW_OFFSETS: ReadonlyArray<[number, number, number]> = [
 /** Maximum ley edges rendered (sorted by strength, weakest culled). */
 export const MAX_VISIBLE_LEY_EDGES = 8
 
-/** Wind particle count for the wind layer overlay. */
-export const WIND_PARTICLE_COUNT = 300
+/** Wind arrow color (white-cyan) and pressure field colors. */
+export const WIND_ARROW_COLOR = 0xCCDDFF
+export const WIND_ARROW_CALM_COLOR = 0x667788
+
+/**
+ * Pressure field colors: [low_pressure_blue, neutral, high_pressure_warm].
+ * Applied as faint hex fills beneath wind arrows.
+ */
+export const PRESSURE_LOW_COLOR: [number, number, number] = [0.15, 0.25, 0.65]
+export const PRESSURE_HIGH_COLOR: [number, number, number] = [0.70, 0.50, 0.20]
+export const PRESSURE_NEUTRAL_COLOR: [number, number, number] = [0.30, 0.30, 0.30]
+
+/** Arrow length scale: fraction of hex half-width at full wind speed. */
+export const WIND_ARROW_LENGTH_SCALE = 0.85
+
+/** Minimum wind speed to draw an arrow (below this, draw a calm dot). */
+export const WIND_CALM_THRESHOLD = 0.05
 
 // ── River rendering ──────────────────────────────────────────────────────────
 
@@ -85,3 +100,48 @@ export function hexEdgeEndpoints(
   const a1 = (30 + v1 * 60) * Math.PI / 180
   return [cx + r * Math.cos(a0), cy - r * Math.sin(a0), cx + r * Math.cos(a1), cy - r * Math.sin(a1)]
 }
+
+// ── Wind arrow overlay config ────────────────────────────────────────────────
+
+export const WIND_ARROW = {
+  paddingFraction: 0.15,
+  zDepth: 0.3,
+  calmThreshold: 0.05,
+  opacity: 0.85,
+  opacityWithPressure: 0.95,
+  tiers: {
+    lightEnd: 0.25,
+    lightLengthScale: 0.35,
+    moderateEnd: 0.50,
+    moderateLengthScale: 0.55,
+    strongEnd: 0.75,
+    strongLengthScale: 0.75,
+    galeLengthScale: 0.90,
+  },
+  speedColor: {
+    calmEnd: 0.25,
+    calm: [0.55, 0.65, 0.80] as readonly [number, number, number],
+    moderateEnd: 0.60,
+    moderate: [0.80, 0.87, 1.00] as readonly [number, number, number],
+    gale: [1.00, 0.95, 0.85] as readonly [number, number, number],
+  },
+  contrast: {
+    // Blue-pink palette: dark blues at low p, pale lavender/white at center, dark pinks at high p
+    darkBgEnd: 0.30,                                                        // deep blue → blue range
+    onDark: [1.00, 1.00, 1.00] as readonly [number, number, number],       // pure white arrows on dark blue
+    lightBgStart: 0.70,                                                     // pink → magenta range
+    onMedium: [1.00, 1.00, 1.00] as readonly [number, number, number],     // white arrows on pink too
+    onLight: [0.08, 0.08, 0.18] as readonly [number, number, number],      // dark navy on pale lavender center
+    onLightSpeedBoost: 0.12,
+  },
+} as const
+
+// ── River overlay config ─────────────────────────────────────────────────────
+
+export const RIVER_OVERLAY = {
+  zDepth: 0.2,
+  opacity: 0.7,
+  sourceZDepth: 0.25,
+  sourceSize: 3.0,
+  sourceOpacity: 0.85,
+} as const