From d20091324865bc1e8a2aea0735e65226ca85d200 Mon Sep 17 00:00:00 2001
From: Kevin Rajan <7121943+kvnloo@users.noreply.github.com>
Date: Tue, 1 Sep 2026 13:41:27 +0000
Subject: [PATCH] feat: port facade lights probability from the Blender
 modifier

Add lights (default 0.546), lightsPick ranges, COL(lights.001) gated like awnings, and a lil-gui slider. Stop claiming all 18 Blender params and low-poly until those exist.
---
 README.md              |  6 +++---
 src/generator.ts       | 10 ++++++++--
 src/main.ts            |  1 +
 src/params.ts          |  2 ++
 tools/compare_truth.ts |  1 +
 5 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 14d18758..b5c5312d 100644
--- a/README.md
+++ b/README.md
@@ -17,9 +17,9 @@ npm install
 npm run dev
 ```
 
-All 18 generator parameters from the Blender modifier (floors, footprint, AC/clothline/
-lights probabilities, window type & open amount, curtains, store state, seed, low-poly
-toggle…) are exposed as live sliders.
+Live sliders cover the ported generator inputs (floors, footprint, AC / clothline /
+lights probabilities, window type & open amount, curtains, store state, seed). The
+Blender modifier also has deform and low-poly toggles; those are not in this port yet.
 
 ## Re-exporting the asset kit
 
diff --git a/src/generator.ts b/src/generator.ts
index 72180ae7..0d98afe7 100644
--- a/src/generator.ts
+++ b/src/generator.ts
@@ -74,6 +74,7 @@ interface GridCfg {
   yShift: number;         // -0.5 front/back, -0.1 sides
   roomsPick: [number, number];
   awningPick: [number, number];
+  lightsPick: [number, number];
   curtainPick: [number, number];
   acPick: [number, number];
   clothPick: [number, number];
@@ -122,6 +123,11 @@ function windowCellContent(p: BuildingParams, cfg: GridCfg, counts: KitCounts):
   awningCells.forEach((c, j) =>
     emit(COL("roof.002", randInt(cfg.awningPick[0], cfg.awningPick[1], j, seed), counts), c, 0, 0, 0));
 
+  // facade lights (same gate pattern as awnings)
+  const [lightCells] = separate(cells, (_c, i) => randBool(p.lights, i, seed));
+  lightCells.forEach((c, j) =>
+    emit(COL("lights.001", randInt(cfg.lightsPick[0], cfg.lightsPick[1], j, seed), counts), c, 0, 0, 0));
+
   // AC units (front/back skip the first window row) and clotheslines
   const [eligible, belowCut] = cfg.acFirstFloorCut
     ? separate(cells, c => c.z > -(floor + 1) / 2 + 2)
@@ -286,7 +292,7 @@ export function generateBuilding(p: BuildingParams, counts: KitCounts): Placemen
   // ---- front/back facade (grid B: length × floor) ----
   const cfgB: GridCfg = {
     n: p.length, yShift: -0.5,
-    roomsPick: [0, 80], awningPick: [45, 125], curtainPick: [0, 101],
+    roomsPick: [0, 80], awningPick: [45, 125], lightsPick: [0, 120], curtainPick: [0, 101],
     acPick: [50, 100], clothPick: [0, 113],
     acFirstFloorCut: true,
   };
@@ -303,7 +309,7 @@ export function generateBuilding(p: BuildingParams, counts: KitCounts): Placemen
   // ---- side facades (grid A: width × floor) ----
   const cfgA: GridCfg = {
     n: p.width, yShift: -0.1,
-    roomsPick: [0, 101], awningPick: [0, 113], curtainPick: [0, 164],
+    roomsPick: [0, 101], awningPick: [0, 113], lightsPick: [0, 89], curtainPick: [0, 164],
     acPick: [50, 200], clothPick: [0, 96],
     acFirstFloorCut: false,
   };
diff --git a/src/main.ts b/src/main.ts
index dc17b1e3..d491efae 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -378,6 +378,7 @@ fBuild.add(params, "width", 2, 40, 1);
 fBuild.add(params, "acUnit", 0, 1, 0.01).name("AC unit");
 fBuild.add(params, "roofProbability", 0, 1, 0.01).name("window awning");
 fBuild.add(params, "clothlineProbability", 0, 1, 0.01).name("clothline");
+fBuild.add(params, "lights", 0, 1, 0.01).name("lights");
 fBuild.add(params, "windowType", 0, 1, 0.01).name("window type");
 fBuild.add(params, "windowOpenAmount", 0, 1, 0.01).name("window open");
 fBuild.add(params, "curtainClose", 0, 1, 0.01).name("curtain close");
diff --git a/src/params.ts b/src/params.ts
index 4573e671..8013d651 100644
--- a/src/params.ts
+++ b/src/params.ts
@@ -6,6 +6,7 @@ export interface BuildingParams {
   acUnit: number;
   roofProbability: number;
   clothlineProbability: number;
+  lights: number;
   windowType: number;
   windowOpenAmount: number;
   curtainClose: number;
@@ -26,6 +27,7 @@ export function defaultParams(): BuildingParams {
     acUnit: 0.724,
     roofProbability: 0.512,
     clothlineProbability: 0.709,
+    lights: 0.546,
     windowType: 0.75,
     windowOpenAmount: 0.0,
     curtainClose: 0.0,
diff --git a/tools/compare_truth.ts b/tools/compare_truth.ts
index 0b56d6c4..f121bfd6 100644
--- a/tools/compare_truth.ts
+++ b/tools/compare_truth.ts
@@ -26,6 +26,7 @@ const p: BuildingParams = {
   acUnit: truth.params["AC UNIT"],
   roofProbability: truth.params["Roof Probability"],
   clothlineProbability: truth.params["Clothline Probability"],
+  lights: truth.params["Lights"] ?? 0.546,
   windowType: truth.params["window type"],
   windowOpenAmount: truth.params["window open amount"],
   curtainClose: truth.params["curtain close"],