Open source Star Ruler 2 source code!

source/game/render/lighting.h

@@ -0,0 +1,60 @@
+#pragma once
+#include <vector>
+#include "vec3.h"
+#include "color.h"
+#include "scene/node.h"
+
+namespace render {
+namespace light {
+
+struct LightSource {
+	//Returns a distance that can be used in comparative distance checks (not actual distance)
+	virtual float distanceFrom(const vec3f& pos) = 0;
+
+	//Enables the light, and advance <lightIndex>
+	virtual void enable(unsigned& lightIndex, const vec3f& offset) = 0;
+
+	//Get data from light
+	virtual vec3f getPosition() const = 0;
+	virtual float getRadius() const = 0;
+
+	virtual ~LightSource() {}
+};
+
+struct PointLight : public LightSource {
+	vec3f position;
+	float radius;
+
+	float att_constant, att_linear, att_quadratic;
+	Colorf diffuse, specular;
+
+	float distanceFrom(const vec3f& pos);
+
+	void enable(unsigned& lightIndex, const vec3f& offset);
+	vec3f getPosition() const;
+	float getRadius() const;
+	PointLight();
+};
+
+struct NodePointLight : public PointLight {
+	scene::Node* followNode;
+
+	void enable(unsigned& lightIndex, const vec3f& offset);
+	vec3f getPosition() const;
+	float getRadius() const;
+	NodePointLight(scene::Node* follow);
+	~NodePointLight();
+};
+
+void registerLight(LightSource* light);
+void unregisterLight(LightSource* light);
+//Removes all registered lights
+void destroyLights();
+//Returns lighting to its default state (a single white light at 0,0,0)
+void resetLights();
+
+//Finds up to <maximum> nearest lights to <from>
+unsigned findNearestLights(const vec3f& from, LightSource** lights, unsigned maximum);
+
+};
+};