Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#ifndef DATATABLE_SEND_ENG_H
#define DATATABLE_SEND_ENG_H
#ifdef _WIN32
#pragma once
#endif
#include "dt_send.h"
#include "bitbuf.h"
#include "utlmemory.h"
typedef unsigned int CRC32_t;
class CStandardSendProxies;
#define MAX_DELTABITS_SIZE 2048
// ------------------------------------------------------------------------ //
// SendTable functions.
// ------------------------------------------------------------------------ //
// Precalculate data that enables the SendTable to be used to encode data.
bool SendTable_Init( SendTable **pTables, int nTables );
void SendTable_Term();
CRC32_t SendTable_GetCRC();
int SendTable_GetNum();
SendTable *SendTabe_GetTable(int index);
// Return the number of unique properties in the table.
int SendTable_GetNumFlatProps( SendTable *pTable );
// compares properties and writes delta properties
int SendTable_WriteAllDeltaProps(
const SendTable *pTable,
const void *pFromData,
const int nFromDataBits,
const void *pToData,
const int nToDataBits,
const int nObjectID,
bf_write *pBufOut );
// Write the properties listed in pCheckProps and nCheckProps.
void SendTable_WritePropList(
const SendTable *pTable,
const void *pState,
const int nBits,
bf_write *pOut,
const int objectID,
const int *pCheckProps,
const int nCheckProps
);
//
// Writes the property indices that must be written to move from pFromState to pToState into pDeltaProps.
// Returns the number of indices written to pDeltaProps.
//
int SendTable_CalcDelta(
const SendTable *pTable,
const void *pFromState,
const int nFromBits,
const void *pToState,
const int nToBits,
int *pDeltaProps,
int nMaxDeltaProps,
const int objectID );
// This function takes the list of property indices in startProps and the values from
// SendProxies in pProxyResults, and fills in a new array in outProps with the properties
// that the proxies want to allow for iClient's client.
//
// If pOldStateProxies is non-null, this function adds new properties into the output list
// if a proxy has turned on from the previous state.
int SendTable_CullPropsFromProxies(
const SendTable *pTable,
const int *pStartProps,
int nStartProps,
const int iClient,
const CSendProxyRecipients *pOldStateProxies,
const int nOldStateProxies,
const CSendProxyRecipients *pNewStateProxies,
const int nNewStateProxies,
int *pOutProps,
int nMaxOutProps
);
// Encode the properties that are referenced in the delta bits.
// If pDeltaBits is NULL, then all the properties are encoded.
bool SendTable_Encode(
const SendTable *pTable,
const void *pStruct,
bf_write *pOut,
int objectID = -1,
CUtlMemory<CSendProxyRecipients> *pRecipients = NULL, // If non-null, this is an array of CSendProxyRecipients.
// The array must have room for pTable->GetNumDataTableProxies().
bool bNonZeroOnly = false // If this is true, then it will write all properties that have
// nonzero values.
);
// In order to receive a table, you must send it from the server and receive its info
// on the client so the client knows how to unpack it.
bool SendTable_WriteInfos( SendTable *pTable, bf_write *pBuf );
// do all kinds of checks on a packed entity bitbuffer
bool SendTable_CheckIntegrity( SendTable *pTable, const void *pData, const int nDataBits );
#endif // DATATABLE_SEND_ENG_H