eventpack.h

魔域源代码需要的可以学习一下真么这么麻烦啊

// EventPack.h: interface for the CEventPack class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_EVENTPACK_H__7565C398_0FA3_4E78_9344_860F1D15C840__INCLUDED_)
#define AFX_EVENTPACK_H__7565C398_0FA3_4E78_9344_860F1D15C840__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "basefunc.h"

const int EVENTPACK_SIZE		= 1024 + 2*sizeof(USHORT) + sizeof(ULONG);

class CEventPack  
{
public:
	CEventPack(DWORD idEvent, ULONG idKey, DWORD idAction=0);
	CEventPack(const char* pPackBuf, int nPackSize);
	virtual ~CEventPack();

public: // appilcation
	CEventPack& operator <<(const int nData);
	CEventPack& operator <<(const String& str);
	CEventPack& operator >>(int& nData);
	CEventPack& operator >>(String& str);

public: // const
	int		GetEventType()	const		{ return m_idEventType; }
	ULONG	GetObjID()		const		{ return m_idKey; }
	int		GetAction()		const		{ return m_idAction; }

	const char*	GetBuf()	const		{ return m_buf; }
	int		GetSize()		const		{ return m_ptr - m_buf; }

protected:
	union{
		char	m_buf[EVENTPACK_SIZE];
		struct{
			USHORT	m_idEventType;
			USHORT	m_idAction;
			ULONG	m_idKey;
			char	m_setParam[1];
		};
	};

protected: // ctrl
	bool	IsUnite()				{ return !m_bSplit; }
	bool	IsSplit()				{ return m_bSplit; }
	bool	CheckLen(int nSize)		{ return m_ptr+nSize <= m_setParam; }
protected:
	bool	m_bSplit;
	char*	m_ptr;
};

#endif // !defined(AFX_EVENTPACK_H__7565C398_0FA3_4E78_9344_860F1D15C840__INCLUDED_)