From 65bed1e65db37e71c0cdef45da3ffe671622b088 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Barth=C3=A9lemy?=
 <31370477+BarthPaleologue@users.noreply.github.com>
Date: Wed, 27 Sep 2023 17:12:13 +0200
Subject: [PATCH] light changing color

---
 core/lights/DebugLight.h | 3 +++
 core/lights/Light.h      | 5 +++++
 main.cpp                 | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/core/lights/DebugLight.h b/core/lights/DebugLight.h
index a3cc7d8..12f5934 100644
--- a/core/lights/DebugLight.h
+++ b/core/lights/DebugLight.h
@@ -20,6 +20,9 @@ class DebugLight {
         auto material = new StandardMaterial();
         material->setLightingEnabled(false);
         material->setAmbientColor(light->color());
+        light->onColorChanged.add([material](float r, float g, float b) {
+            material->setAmbientColor(r, g, b);
+        });
 
         mesh->setMaterial(material);
     }
diff --git a/core/lights/Light.h b/core/lights/Light.h
index c67aeea..e34947b 100644
--- a/core/lights/Light.h
+++ b/core/lights/Light.h
@@ -8,6 +8,7 @@
 
 #include <string>
 #include "glm/ext.hpp"
+#include "Observable.h"
 
 class Light {
 public:
@@ -17,12 +18,16 @@ class Light {
         _color->x = r;
         _color->y = g;
         _color->z = b;
+
+        onColorChanged.notifyObservers(_color->x, _color->y, _color->z);
     }
 
     inline glm::vec3 *color() { return _color; };
 
     float intensity() const { return _intensity; };
 
+    Observable<float, float, float> onColorChanged;
+
 private:
     std::string _name;
 
diff --git a/main.cpp b/main.cpp
index c933064..7d4a549 100644
--- a/main.cpp
+++ b/main.cpp
@@ -114,6 +114,11 @@ int main() {
         light4.transform()->setPosition(
                 0.0f, 10.0f * cosf(1.0f * elapsedTime), 10.0f * sinf(1.0f * elapsedTime)
         );
+        light4.setColor(
+                0.5f * cosf(1.0f * elapsedTime) + 0.5f,
+                0.5f * sinf(1.0f * elapsedTime) + 0.5f,
+                0.5f * cosf(1.0f * elapsedTime) + 0.5f
+        );
 
         camera.setTarget(currentTarget->getMesh()->transform()->position());
         camera.setMinRadius(currentTarget->getRadius());