#pragma once

//收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收
/// RandomNumberGenerator class
/**
	@author	Waverix
	@since	2008/08/06
	@note
		- Randomizing Number Generator
		- util::Randomizer釭 晦顫 random number 餌辨衛 ⑸熱 ぇユ脹 楠渾 高檜 釭螃朝 睡碟縑 渠フ 偃摹 濛機
	@todo
	- Interface #1)	RandomNumberGenerator::GetRandomNumber() <- DWORD 高曖 random高擊 橢朝棻.
	- Interface #2)	RandomNumberGenerator::GetRandomNumberRange( _min, _max ) <- DWORD檜頂 _min <= X < max 彰嬪曖 楠渾高擊 橢朝棻.
	- Interface #3)	RandomNumberGenerator::AddRandomNumberEntropy()
		<- 奩萄衛 餌辨ブ ノ蹂朝 橈棻. 餌辨濠 殮溘擊 綠煜フ 諼睡 熱纂(Entropy)蒂 檜辨ボ Next Generation Random Base Value蒂 橢朝棻.
	@history
	- 

*/
//收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收


class RandomNumberGenerator
{
public:		RandomNumberGenerator();
public:
	static	DWORD		GetRandomNumber();
	static	DWORD		GetRandomNumberRange( const DWORD _min, const DWORD _max );
	static	VOID		AddRandomNumberEntropy( const DWORD entropy );	// runtime - user input, randomizing by entropy - (0, MAX]
private:
	static	VOID		_Update();
private:
    // f101227.1L, changes refresh interval about the base random seed update
	static const DWORD		UPDATE_INTERVAL		=	3 * 1000;
	static const DWORD		BASE_RNDARRAY		=	4;
	static const DWORD		BASE_MULTIPLIER		=	0x0012FF41;
	static const DWORD		BASE_ADDER			=	0x03712BA7;
	static	RandomNumberGenerator*		ms_pInstance;
private:	ITimerBase		m_UpdateTimer;	// next seed;
			DWORD			m_Values[BASE_RNDARRAY];
			friend struct RandomNumberGeneratorAutoClosure;
};