CWE-ou-minkata/Sources/Plasma/NucleusLib/pnNetBase/Private/pnNbEchoMsgs.h

/*==LICENSE==*

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*==LICENSE==*/
/*****************************************************************************
*
*   $/Plasma20/Sources/Plasma/NucleusLib/pnNetBase/Private/pnNbEchoMsgs.h
*   
***/

#ifdef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNNETBASE_PRIVATE_PNNBECHOMSGS_H
#error "Header $/Plasma20/Sources/Plasma/NucleusLib/pnNetBase/Private/pnNbEchoMsgs.h included more than once"
#endif
#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNNETBASE_PRIVATE_PNNBECHOMSGS_H


//============================================================================
// Begin Echo server data types
//============================================================================
namespace Echo {


/*****************************************************************************
*
*   @@@: Shared data types for echo server/client demo
*
***/


const unsigned kEchoMsgFlagBroadcast    = 1<<0;
const unsigned kEchoMsgFlagEchoBack     = 1<<1;


enum EEchoNetBufferType {
    kEchoNetBufferInvalidType,
    kEchoNetBufferMsg,
    kNumEchoNetBufferTypes
};

enum EEchoMsgType {
    kEchoInvalidMsgType,
    kEchoJoinRequestMsg,
    kEchoJoinReplyMsg,
    kEchoPlayerJoinedMsg,
    kEchoPlayerLeftMsg,
    kEchoChatMsg,
    kEchoGameDataBufferMsg,
    kNumEchoMsgTypes
};
COMPILER_ASSERT(kNumEchoMsgTypes < (byte)-1);


//============================================================================
// Begin packed data structures
//============================================================================
#include <pshpack1.h>

struct EchoMsg {
    EchoMsg (const EEchoMsgType & type, unsigned flags = 0)
    :   type((byte)type)
    ,   flags(flags)
    { }
    
    byte                    type;
    dword                   flags;
};

struct EchoJoinRequestMsg : EchoMsg {
    EchoJoinRequestMsg ()
    :   EchoMsg(kEchoJoinRequestMsg)
    { }

    wchar                   playerName[64];
};

struct EchoJoinReplyMsg : EchoMsg {
    EchoJoinReplyMsg ()
    :   EchoMsg(kEchoJoinReplyMsg)
    { }
    
    dword                   playerId;
};

struct EchoPlayerJoinedMsg : EchoMsg {
    EchoPlayerJoinedMsg ()
    :   EchoMsg(kEchoPlayerJoinedMsg, kEchoMsgFlagBroadcast)
    { }
    
    dword                   playerId;
    wchar                   playerName[64];
};

struct EchoPlayerLeftMsg : EchoMsg {
    EchoPlayerLeftMsg ()
    :   EchoMsg(kEchoPlayerLeftMsg, kEchoMsgFlagBroadcast)
    { }

    dword                   playerId;
};

struct EchoChatMsg : EchoMsg {
    EchoChatMsg ()
    :   EchoMsg(kEchoChatMsg, kEchoMsgFlagBroadcast|kEchoMsgFlagEchoBack)
    { }
    
    dword                   fromPlayerId;
    dword                   msgChars;
    wchar                   msgBuffer[1];   // [msgChars], actually
    // no more fields after variable length allocation
};

struct EchoGameDataBufferMsg : EchoMsg {
    EchoGameDataBufferMsg ()
    :   EchoMsg(kEchoGameDataBufferMsg, kEchoMsgFlagBroadcast|kEchoMsgFlagEchoBack)
    { }

    dword                   fromPlayerId;
    dword                   bufferBytes;
    byte                    bufferData[1];  // [bufferBytes], actually
    // no more fields after variable length allocation
};

//============================================================================
// End packed data structures
//============================================================================
#include <poppack.h>


//============================================================================
// End Echo server data types
//============================================================================
} using namespace Echo;