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/*
 * Copyright (C) 2007-2012 Xagasoft, All rights reserved.
 *
 * This file is part of the libbu++ library and is released under the
 * terms of the license contained in the file LICENSE.
 */
#ifndef BU_RANDOM_H
#define BU_RANDOM_H

#include "bu/singleton.h"
#include <stdint.h>

namespace Bu
{
	class RandomBase;
	class Random : public Bu::Singleton<Bu::Random>
	{
	friend class Bu::Singleton<Bu::Random>;
	private:
		Random();
		virtual ~Random();

	public:
		template<typename cl>
		static void setGenerator()
		{
			delete getInstance().pGen;
			getInstance().pGen = new cl();
		}
		
		template<typename cl, typename t1>
		static void setGenerator( t1 p1 )
		{
			delete getInstance().pGen;
			getInstance().pGen = new cl( p1 );
		}
		
		template<typename cl, typename t1, typename t2>
		static void setGenerator( t1 p1, t2 p2 )
		{
			delete getInstance().pGen;
			getInstance().pGen = new cl( p1, p2 );
		}
		
		RandomBase &getGenerator() { return *pGen; }

		static void seed( int32_t iSeed );
		static int32_t rand();
		static int32_t rand( int32_t iMax );
		static int32_t rand( int32_t iMin, int32_t iMax );
		static double randNorm();

	private:
		void checkInit();

	private:
		Bu::RandomBase *pGen;
	};
};

#endif