Working on the night mode

src/Location.h

@@ -20,6 +20,13 @@
 namespace ZL
 {
 
+	struct PointLight
+	{
+		Eigen::Vector3f position;   // world space
+		Eigen::Vector3f direction;  // world space, unit vector the cone points toward
+		Eigen::Vector3f color;      // RGB, values > 1.0 increase intensity
+	};
+
 	struct TriggerZone
 	{
 		std::string id;
@@ -83,9 +90,12 @@ namespace ZL
 
 		std::vector<TriggerZone> triggerZones;
 
+		std::vector<PointLight> pointLights;
+
 		// Set by Game and kept in sync across location transitions.
 		// Read by draw functions and raycast — do not write from Location code.
 		bool isDarklands = false;
+		bool isNight = false;
 
 		// Called when the player successfully taps the ground and a floor walk target is set.
 		// Used by the tutorial system to detect the "tap to walk" gesture.
@@ -122,6 +132,8 @@ namespace ZL
 		void drawShadowDepthPass();
 		void drawGameWithShadows();
 		void drawGameDarklands();
+		void drawGameNight();
+		void drawNightShadowDepthPass(const PointLight& light);
 
 		bool setNavigationAreaAvailable(const std::string& areaName, bool available);