From 53d4183ac349021b0eb3cd96639bc2bdc6aab90c Mon Sep 17 00:00:00 2001
From: Kae <80987908+Novaenia@users.noreply.github.com>
Date: Fri, 29 Mar 2024 02:23:36 +1100
Subject: [PATCH] Add a default brightness limit

---
 source/base/StarCellularLighting.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/source/base/StarCellularLighting.cpp b/source/base/StarCellularLighting.cpp
index 3e5cf9a..cefd751 100644
--- a/source/base/StarCellularLighting.cpp
+++ b/source/base/StarCellularLighting.cpp
@@ -154,16 +154,23 @@ void CellularLightingCalculator::calculate(Lightmap& output) {
 
   output = Lightmap(arrayMax[0] - arrayMin[0], arrayMax[1] - arrayMin[1]);
 
+  float brightnessLimit = m_config.getFloat("brightnessLimit", 1.5f);
+
   if (m_monochrome) {
     for (size_t x = arrayMin[0]; x < arrayMax[0]; ++x) {
       for (size_t y = arrayMin[1]; y < arrayMax[1]; ++y) {
-        output.set(x - arrayMin[0], y - arrayMin[1], m_lightArray.right().getLight(x, y));
+        auto light = min(m_lightArray.right().getLight(x, y), brightnessLimit);
+        output.set(x - arrayMin[0], y - arrayMin[1], light);
       }
     }
   } else {
     for (size_t x = arrayMin[0]; x < arrayMax[0]; ++x) {
       for (size_t y = arrayMin[1]; y < arrayMax[1]; ++y) {
-        output.set(x - arrayMin[0], y - arrayMin[1], m_lightArray.left().getLight(x, y));
+        auto light = m_lightArray.left().getLight(x, y);
+        float intensity = ColoredLightTraits::maxIntensity(light);
+        if (intensity > brightnessLimit)
+          light *= brightnessLimit / intensity;
+        output.set(x - arrayMin[0], y - arrayMin[1], light);
       }
     }
   }