Restructure repository to include all source folders

Move git root from Client/ to src/ to track all source code:
- Client: Game client source (moved to Client/Client/)
- Server: Game server source
- GameTools: Development tools
- CryptoSource: Encryption utilities
- database: Database scripts
- Script: Game scripts
- rylCoder_16.02.2008_src: Legacy coder tools
- GMFont, Game: Additional resources

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

GameTools/ZALLA3D BASECLASS/FastMath.h

@@ -0,0 +1,137 @@
+// FastMath.h: interface for the CFastMath class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#if !defined(AFX_FASTMATH_H__ED69578B_18C1_42EA_9C5E_888DC38101C2__INCLUDED_)
+#define AFX_FASTMATH_H__ED69578B_18C1_42EA_9C5E_888DC38101C2__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+#include <d3d8.h>
+#include "MathBase.h"
+#define FP_BITS(fp) (*(DWORD *)&(fp))
+
+class CFastMath  
+{
+	typedef union FastSqrtUnion {
+	  float f;
+	  unsigned int i;
+	} FastSqrtUnion;
+
+	static unsigned int m_FastSqrtTable[0x10000];
+	static unsigned short m_FastHeToBi[0x100];
+	static long m_HoldRand;
+
+public:	
+
+	// constructor and destructor
+	CFastMath();
+	virtual ~CFastMath();
+
+	static void Init();
+	inline static float FastSqrt(float n) // 빠른 제곱근 연산을 하는 함수.
+	{
+		if (FP_BITS(n) == 0)
+			return 0.0f;                 // check for square root of 0
+		FP_BITS(n) = m_FastSqrtTable[(FP_BITS(n) >> 8) & 0xFFFF] | ((((FP_BITS(n) - 0x3F800000) >> 1) + 0x3F800000) & 0x7F800000);
+		return n;
+	};
+	
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// converts ascii type of IPX address to hexadecimal format
+	// returns the equivalent binary value for an individual character specified in the ascii format
+	
+	static UCHAR	BiToHe(char cBin);	// SPX, IPX 주소 계산을 위해 사용하는 함수
+	static void		AcToHe(char *szDst, char *szSrc, int iCount);	// SPX, IPX 주소 계산을 위해 사용하는 함수
+
+	static char				StrToHex08(char *szSrc);	// convert string to hexa
+	static unsigned short	StrToHex16(char *szSrc);	// convert string to hexa
+	static DWORD			StrToHex32(char *szSrc);	// convert string to hexa
+	static _int64			StrToHex64(char *szSrc);	// convert string to hexa
+
+	static inline void Hex08ToStr(char *szDest, BYTE hex);		// convert hexa to string
+	static inline void Hex16ToStr(char *szDest, WORD hex);		// convert hexa to string
+	static inline void Hex32ToStr(char *szDest, DWORD hex);		// convert hexa to string
+	static inline void Hex64ToStr(char *szDest, DWORD64 hex);	// convert hexa to string
+
+	static char				Atoc(char *szSrc);		// ascii to U8
+	static unsigned short	Atos(char *szSrc);		// ascii to U16
+	static unsigned int		Atoi(char *szSrc);		// ascii to U32
+	static _int64			Atol64(char *szSrc);	// ascii to U64
+
+	static void SRand( unsigned int seed );
+	static int Rand( void );
+
+	// 리턴값은 0 ~ nExtent - 1의 범위를 갖는다.
+	static DWORD ComplexRandom(int nExtent);
+	static DWORD AGLRandom(int nExtent) { return ComplexRandom(nExtent); };
+
+};
+
+inline void CFastMath::Hex08ToStr( char *szDest, BYTE hex )
+{
+	*((WORD *) szDest) = m_FastHeToBi[ hex ];	szDest += 2;
+	*(szDest) = '\0';
+}
+
+inline void CFastMath::Hex16ToStr( char *szDest, WORD hex )
+{
+	LPBYTE pSrc = (LPBYTE) &hex;
+
+#ifdef BIG_ENDIAN
+	*((WORD *) (szDest +  0)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  2)) = m_FastHeToBi[ *(pSrc++) ];
+#else
+	*((WORD *) (szDest +  2)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  0)) = m_FastHeToBi[ *(pSrc++) ];
+#endif
+	*(szDest + 4) = '\0';
+}
+
+inline void CFastMath::Hex32ToStr( char *szDest, DWORD hex )
+{
+	LPBYTE pSrc = (LPBYTE) &hex;
+
+#ifdef BIG_ENDIAN
+	*((WORD *) (szDest +  0)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  2)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  4)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  6)) = m_FastHeToBi[ *(pSrc++) ];
+#else
+	*((WORD *) (szDest +  6)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  4)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  2)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  0)) = m_FastHeToBi[ *(pSrc++) ];
+#endif
+	*(szDest + 8) = '\0';
+}
+
+inline void CFastMath::Hex64ToStr( char *szDest, DWORD64 hex )
+{
+	LPBYTE pSrc = (LPBYTE) &hex;
+
+#ifdef BIG_ENDIAN
+	*((WORD *) (szDest +  0)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  2)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  4)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  6)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  8)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest + 10)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest + 12)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest + 14)) = m_FastHeToBi[ *(pSrc++) ];
+#else
+	*((WORD *) (szDest + 14)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest + 12)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest + 10)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  8)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  6)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  4)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  2)) = m_FastHeToBi[ *(pSrc++) ];
+	*((WORD *) (szDest +  0)) = m_FastHeToBi[ *(pSrc++) ];
+#endif
+	*(szDest + 16) = '\0';
+}
+
+#endif // !defined(AFX_FASTMATH_H__ED69578B_18C1_42EA_9C5E_888DC38101C2__INCLUDED_)