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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _GL_LIGHTHANDLER_H
#define _GL_LIGHTHANDLER_H
#include <list>
#include <map>
#include "Light.h"
namespace Shader {
struct IProgramObject;
}
namespace GL {
struct LightHandler {
public:
LightHandler(): baseLight(0), maxLights(0), numLights(0), lightHandle(0) {
}
void Init(unsigned int, unsigned int);
void Kill() { lights.clear(); }
void Update(Shader::IProgramObject*);
unsigned int AddLight(const GL::Light&);
GL::Light* GetLight(unsigned int);
unsigned int GetBaseLight() const { return baseLight; }
unsigned int GetMaxLights() const { return maxLights; }
private:
std::map<unsigned int, GL::Light> lights;
std::list<unsigned int> lightIDs;
// sum of intensity weights for all active lights
float3 lightIntensityWeight;
unsigned int baseLight;
unsigned int maxLights;
unsigned int numLights;
unsigned int lightHandle;
};
};
#endif // _GL_LIGHTHANDLER_H
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