dynamically assigned render lights

lightarray.h

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+#pragma once
+
+#include <vector>
+#include "dumb3d.h"
+#include "float3d.h"
+#include "dynobj.h"
+
+// collection of virtual light sources present in the scene
+// used by the renderer to determine most suitable placement for actual light sources during render
+struct light_array {
+
+public:
+// types
+    struct light_record {
+
+        light_record( TDynamicObject const *Owner, int const Lightindex) :
+                                      owner(Owner),    index(Lightindex)
+        {};
+
+        TDynamicObject const *owner; // the object in world which 'carries' the light
+        int index{ -1 }; // 0: front lights, 1: rear lights
+        Math3D::vector3 position; // position of the light in 3d scene
+        Math3D::vector3 direction; // direction of the light in 3d scene
+        float3 color{ 255.0f / 255.0f, 241.0f / 255.0f, 224.0f / 255.0f }; // color of the light, default is halogen light
+        float intensity{ 0.0f }; // (combined) intensity of the light(s)
+        int count{ 0 }; // number (or pattern) of active light(s)
+    };
+
+// methods
+    // adds records for lights of specified owner to the collection
+    void
+        insert( TDynamicObject const *Owner );
+    // removes records for lights of specified owner from the collection
+    void
+        remove( TDynamicObject const *Owner );
+    // updates records in the collection
+    void
+        update();
+
+// types
+    typedef std::vector<light_record> lightrecord_array;
+
+// members
+    lightrecord_array data;
+};