source-engine/engine/tmessage.cpp

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2020-04-22 16:56:21 +00:00
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//=============================================================================//
#include "quakedef.h"
#include "cdll_int.h"
#include "draw.h"
#include "tmessage.h"
#include "common.h"
#include "characterset.h"
#include "mem_fgets.h"
#include "tier0/icommandline.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
#define MSGFILE_NAME 0
#define MSGFILE_TEXT 1
#define MAX_MESSAGES 600 // I don't know if this table will balloon like every other feature in Half-Life
// But, for now, I've set this to a reasonable value
// Defined in other files.
static characterset_t g_WhiteSpace;
client_textmessage_t gMessageParms;
client_textmessage_t *gMessageTable = NULL;
int gMessageTableCount = 0;
char gNetworkTextMessageBuffer[MAX_NETMESSAGE][512];
const char *gNetworkMessageNames[MAX_NETMESSAGE] = { NETWORK_MESSAGE1, NETWORK_MESSAGE2, NETWORK_MESSAGE3, NETWORK_MESSAGE4, NETWORK_MESSAGE5, NETWORK_MESSAGE6 };
client_textmessage_t gNetworkTextMessage[MAX_NETMESSAGE] =
{
{ 0, // effect
255,255,255,255,
255,255,255,255,
-1.0f, // x
-1.0f, // y
0.0f, // fadein
0.0f, // fadeout
0.0f, // holdtime
0.0f, // fxTime,
NULL,//pVGuiSchemeFontName (NULL == default)
NETWORK_MESSAGE1, // pName message name.
gNetworkTextMessageBuffer[0] } // pMessage
};
char gDemoMessageBuffer[512];
client_textmessage_t tm_demomessage =
{
0, // effect
255,255,255,255,
255,255,255,255,
-1.0f, // x
-1.0f, // y
0.0f, // fadein
0.0f, // fadeout
0.0f, // holdtime
0.0f, // fxTime,
NULL,// pVGuiSchemeFontName (NULL == default)
DEMO_MESSAGE, // pName message name.
gDemoMessageBuffer // pMessage
};
static client_textmessage_t orig_demo_message = tm_demomessage;
static void TextMessageParse( byte *pMemFile, int fileSize );
// The string "pText" is assumed to have all whitespace from both ends cut out
int IsComment( char *pText )
{
if ( pText )
{
int length = strlen( pText );
if ( length >= 2 && pText[0] == '/' && pText[1] == '/' )
return 1;
// No text?
if ( length > 0 )
return 0;
}
// No text is a comment too
return 1;
}
// The string "pText" is assumed to have all whitespace from both ends cut out
int IsStartOfText( char *pText )
{
if ( pText )
{
if ( pText[0] == '{' )
return 1;
}
return 0;
}
// The string "pText" is assumed to have all whitespace from both ends cut out
int IsEndOfText( char *pText )
{
if ( pText )
{
if ( pText[0] == '}' )
return 1;
}
return 0;
}
#if 0
int IsWhiteSpace( char space )
{
if ( space == ' ' || space == '\t' || space == '\r' || space == '\n' )
return 1;
return 0;
}
#else
#define IsWhiteSpace(space) IN_CHARACTERSET( g_WhiteSpace, space )
#endif
const char *SkipSpace( const char *pText )
{
if ( pText )
{
int pos = 0;
while ( pText[pos] && IsWhiteSpace( pText[pos] ) )
pos++;
return pText + pos;
}
return NULL;
}
const char *SkipText( const char *pText )
{
if ( pText )
{
int pos = 0;
while ( pText[pos] && !IsWhiteSpace( pText[pos] ) )
pos++;
return pText + pos;
}
return NULL;
}
int ParseFloats( const char *pText, float *pFloat, int count )
{
const char *pTemp = pText;
int index = 0;
while ( pTemp && count > 0 )
{
// Skip current token / float
pTemp = SkipText( pTemp );
// Skip any whitespace in between
pTemp = SkipSpace( pTemp );
if ( pTemp )
{
// Parse a float
pFloat[index] = (float)atof( pTemp );
count--;
index++;
}
}
if ( count == 0 )
return 1;
return 0;
}
int ParseString( char const *pText, char *buf, size_t bufsize )
{
const char *pTemp = pText;
// Skip current token / float
pTemp = SkipText( pTemp );
// Skip any whitespace in between
pTemp = SkipSpace( pTemp );
if ( pTemp )
{
char const *pStart = pTemp;
pTemp = SkipText( pTemp );
int len = min( pTemp - pStart + 1, (int)bufsize - 1 );
Q_strncpy( buf, pStart, len );
buf[ len ] = 0;
return 1;
}
return 0;
}
// Trims all whitespace from the front and end of a string
void TrimSpace( const char *source, char *dest )
{
int start, end, length;
start = 0;
end = strlen( source );
while ( source[start] && IsWhiteSpace( source[start] ) )
start++;
end--;
while ( end > 0 && IsWhiteSpace( source[end] ) )
end--;
end++;
length = end - start;
if ( length > 0 )
memcpy( dest, source + start, length );
else
length = 0;
// Terminate the dest string
dest[ length ] = 0;
}
int IsToken( const char *pText, const char *pTokenName )
{
if ( !pText || !pTokenName )
return 0;
if ( !Q_strnicmp( pText+1, pTokenName, strlen(pTokenName) ) )
return 1;
return 0;
}
static char g_pchSkipName[ 64 ];
int ParseDirective( const char *pText )
{
if ( pText && pText[0] == '$' )
{
float tempFloat[8];
if ( IsToken( pText, "position" ) )
{
if ( ParseFloats( pText, tempFloat, 2 ) )
{
gMessageParms.x = tempFloat[0];
gMessageParms.y = tempFloat[1];
}
}
else if ( IsToken( pText, "effect" ) )
{
if ( ParseFloats( pText, tempFloat, 1 ) )
{
gMessageParms.effect = (int)tempFloat[0];
}
}
else if ( IsToken( pText, "fxtime" ) )
{
if ( ParseFloats( pText, tempFloat, 1 ) )
{
gMessageParms.fxtime = tempFloat[0];
}
}
else if ( IsToken( pText, "color2" ) )
{
if ( ParseFloats( pText, tempFloat, 3 ) )
{
gMessageParms.r2 = (int)tempFloat[0];
gMessageParms.g2 = (int)tempFloat[1];
gMessageParms.b2 = (int)tempFloat[2];
}
}
else if ( IsToken( pText, "color" ) )
{
if ( ParseFloats( pText, tempFloat, 3 ) )
{
gMessageParms.r1 = (int)tempFloat[0];
gMessageParms.g1 = (int)tempFloat[1];
gMessageParms.b1 = (int)tempFloat[2];
}
}
else if ( IsToken( pText, "fadein" ) )
{
if ( ParseFloats( pText, tempFloat, 1 ) )
{
gMessageParms.fadein = tempFloat[0];
}
}
else if ( IsToken( pText, "fadeout" ) )
{
if ( ParseFloats( pText, tempFloat, 3 ) )
{
gMessageParms.fadeout = tempFloat[0];
}
}
else if ( IsToken( pText, "holdtime" ) )
{
if ( ParseFloats( pText, tempFloat, 3 ) )
{
gMessageParms.holdtime = tempFloat[0];
}
}
else if ( IsToken( pText, "boxsize" ) )
{
if ( ParseFloats( pText, tempFloat, 1 ) )
{
gMessageParms.bRoundedRectBackdropBox = tempFloat[0] != 0.0f;
gMessageParms.flBoxSize = tempFloat[0];
}
}
else if ( IsToken( pText, "boxcolor" ) )
{
if ( ParseFloats( pText, tempFloat, 4 ) )
{
for ( int i = 0; i < 4; ++i )
{
gMessageParms.boxcolor[ i ] = (byte)(int)tempFloat[ i ];
}
}
}
else if ( IsToken( pText, "clearmessage" ) )
{
if ( ParseString( pText, g_pchSkipName, sizeof( g_pchSkipName ) ) )
{
if ( !g_pchSkipName[ 0 ] || !Q_stricmp( g_pchSkipName, "0" ) )
{
gMessageParms.pClearMessage = NULL;
}
else
{
gMessageParms.pClearMessage = g_pchSkipName;
}
}
}
else
{
ConDMsg("Unknown token: %s\n", pText );
}
return 1;
}
return 0;
}
#define NAME_HEAP_SIZE 16384
void TextMessageParse( byte *pMemFile, int fileSize )
{
char buf[512], trim[512];
char *pCurrentText=0, *pNameHeap;
char currentName[512], nameHeap[ NAME_HEAP_SIZE ];
int lastNamePos;
int mode = MSGFILE_NAME; // Searching for a message name
int lineNumber, filePos, lastLinePos;
int messageCount;
client_textmessage_t textMessages[ MAX_MESSAGES ];
int i, nameHeapSize, textHeapSize, messageSize, nameOffset;
lastNamePos = 0;
lineNumber = 0;
filePos = 0;
lastLinePos = 0;
messageCount = 0;
bool bSpew = CommandLine()->FindParm( "-textmessagedebug" ) ? true : false;
CharacterSetBuild( &g_WhiteSpace, " \r\n\t" );
while( memfgets( pMemFile, fileSize, &filePos, buf, 512 ) != NULL )
{
if(messageCount>=MAX_MESSAGES)
{
Sys_Error("tmessage::TextMessageParse : messageCount>=MAX_MESSAGES");
}
TrimSpace( buf, trim );
switch( mode )
{
case MSGFILE_NAME:
if ( IsComment( trim ) ) // Skip comment lines
break;
if ( ParseDirective( trim ) ) // Is this a directive "$command"?, if so parse it and break
break;
if ( IsStartOfText( trim ) )
{
mode = MSGFILE_TEXT;
pCurrentText = (char*)(pMemFile + filePos);
break;
}
if ( IsEndOfText( trim ) )
{
ConDMsg("Unexpected '}' found, line %d\n", lineNumber );
return;
}
Q_strncpy( currentName, trim, sizeof( currentName ) );
break;
case MSGFILE_TEXT:
if ( IsEndOfText( trim ) )
{
int length = strlen(currentName);
// Save name on name heap
if ( lastNamePos + length > 8192 )
{
ConDMsg("Error parsing file!\n" );
return;
}
Q_strcpy( nameHeap + lastNamePos, currentName );
// Terminate text in-place in the memory file (it's temporary memory that will be deleted)
// If the string starts with #, it's a localization string and we don't
// want the \n (or \r) on the end or the Find() lookup will fail (so subtract 2)
if ( pCurrentText && pCurrentText[0] && pCurrentText[0] == '#' && lastLinePos > 1 &&
( ( pMemFile[lastLinePos - 2] == '\n' ) || ( pMemFile[lastLinePos - 2] == '\r' ) ) )
{
pMemFile[ lastLinePos - 2 ] = 0;
}
else
{
pMemFile[ lastLinePos - 1 ] = 0;
}
// Save name/text on heap
textMessages[ messageCount ] = gMessageParms;
textMessages[ messageCount ].pName = nameHeap + lastNamePos;
lastNamePos += strlen(currentName) + 1;
if ( gMessageParms.pClearMessage )
{
Q_strncpy( nameHeap + lastNamePos, textMessages[ messageCount ].pClearMessage, Q_strlen( textMessages[ messageCount ].pClearMessage ) + 1 );
textMessages[ messageCount ].pClearMessage = nameHeap + lastNamePos;
lastNamePos += Q_strlen( textMessages[ messageCount ].pClearMessage ) + 1;
}
textMessages[ messageCount ].pMessage = pCurrentText;
if ( bSpew )
{
client_textmessage_t *m = &textMessages[ messageCount ];
Msg( "%d %s\n",
messageCount, m->pName ? m->pName : "(null)" );
Msg( " effect %d, color1(%d,%d,%d,%d), color2(%d,%d,%d,%d)\n",
m->effect, m->r1, m->g1, m->b1, m->a1, m->r2, m->g2, m->b2, m->a2 );
Msg( " pos %f,%f, fadein %f fadeout %f hold %f fxtime %f\n",
m->x, m->y, m->fadein, m->fadeout, m->holdtime, m->fxtime );
Msg( " '%s'\n", m->pMessage ? m->pMessage : "(null)" );
Msg( " box %s, size %f, color(%d,%d,%d,%d)\n",
m->bRoundedRectBackdropBox ? "yes" : "no", m->flBoxSize, m->boxcolor[ 0 ], m->boxcolor[ 1 ], m->boxcolor[ 2 ], m->boxcolor[ 3 ] );
if ( m->pClearMessage )
{
Msg( " will clear '%s'\n", m->pClearMessage );
}
}
messageCount++;
// Reset parser to search for names
mode = MSGFILE_NAME;
break;
}
if ( IsStartOfText( trim ) )
{
ConDMsg("Unexpected '{' found, line %d\n", lineNumber );
return;
}
break;
}
lineNumber++;
lastLinePos = filePos;
if ( messageCount >= MAX_MESSAGES )
{
ConMsg("WARNING: TOO MANY MESSAGES IN TITLES.TXT, MAX IS %d\n", MAX_MESSAGES );
break;
}
}
ConDMsg("Parsed %d text messages\n", messageCount );
nameHeapSize = lastNamePos;
textHeapSize = 0;
for ( i = 0; i < messageCount; i++ )
textHeapSize += strlen( textMessages[i].pMessage ) + 1;
messageSize = (messageCount * sizeof(client_textmessage_t));
// Must malloc because we need to be able to clear it after initialization
gMessageTable = (client_textmessage_t *)malloc( textHeapSize + nameHeapSize + messageSize );
// Copy table over
memcpy( gMessageTable, textMessages, messageSize );
// Copy Name heap
pNameHeap = ((char *)gMessageTable) + messageSize;
memcpy( pNameHeap, nameHeap, nameHeapSize );
nameOffset = pNameHeap - gMessageTable[0].pName;
// Copy text & fixup pointers
pCurrentText = pNameHeap + nameHeapSize;
for ( i = 0; i < messageCount; i++ )
{
gMessageTable[i].pName += nameOffset; // Adjust name pointer (parallel buffer)
if ( gMessageTable[ i ].pClearMessage )
{
gMessageTable[ i ].pClearMessage += nameOffset;
}
Q_strcpy( pCurrentText, gMessageTable[i].pMessage ); // Copy text over
gMessageTable[i].pMessage = pCurrentText;
pCurrentText += strlen( pCurrentText ) + 1;
}
#if _DEBUG
if ( (pCurrentText - (char *)gMessageTable) != (textHeapSize + nameHeapSize + messageSize) )
ConMsg("Overflow text message buffer!!!!!\n");
#endif
gMessageTableCount = messageCount;
}
void TextMessageShutdown( void )
{
// Clear out any old data that's sitting around.
if ( gMessageTable )
{
free( gMessageTable );
gMessageTable = NULL;
}
}
void TextMessageInit( void )
{
int fileSize;
byte *pMemFile;
// Clear out any old data that's sitting around.
if ( gMessageTable )
{
free( gMessageTable );
gMessageTable = NULL;
}
pMemFile = COM_LoadFile( "scripts/titles.txt", 5, &fileSize );
if ( pMemFile )
{
TextMessageParse( pMemFile, fileSize );
free( pMemFile );
}
int i;
for ( i = 0; i < MAX_NETMESSAGE; i++ )
{
gNetworkTextMessage[ i ].pMessage =
gNetworkTextMessageBuffer[ i ];
}
}
void TextMessage_DemoMessage( const char *pszMessage, float fFadeInTime, float fFadeOutTime, float fHoldTime )
{
if ( !pszMessage || !pszMessage[0] )
return;
// Restore
tm_demomessage = orig_demo_message;
Q_strncpy( gDemoMessageBuffer, (char *)pszMessage, sizeof( gDemoMessageBuffer ) );
tm_demomessage.fadein = fFadeInTime;
tm_demomessage.fadeout = fFadeOutTime;
tm_demomessage.holdtime = fHoldTime;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *pszMessage -
// *message -
//-----------------------------------------------------------------------------
void TextMessage_DemoMessageFull( const char *pszMessage, client_textmessage_t const *message )
{
Assert( message );
if ( !message )
return;
if ( !pszMessage || !pszMessage[0] )
return;
memcpy( &tm_demomessage, message, sizeof( tm_demomessage ) );
tm_demomessage.pMessage = orig_demo_message.pMessage;
tm_demomessage.pName = orig_demo_message.pName;
Q_strncpy( gDemoMessageBuffer, pszMessage, sizeof( gDemoMessageBuffer ) );
}
client_textmessage_t *TextMessageGet( const char *pName )
{
if (!Q_stricmp( pName, DEMO_MESSAGE ))
return &tm_demomessage;
// HACKHACK -- add 4 "channels" of network text
if (!Q_stricmp( pName, NETWORK_MESSAGE1 ))
return gNetworkTextMessage;
else if (!Q_stricmp( pName, NETWORK_MESSAGE2 ))
return gNetworkTextMessage + 1;
else if (!Q_stricmp( pName, NETWORK_MESSAGE3 ))
return gNetworkTextMessage + 2;
else if (!Q_stricmp( pName, NETWORK_MESSAGE4 ))
return gNetworkTextMessage + 3;
else if (!Q_stricmp( pName, NETWORK_MESSAGE5 ))
return gNetworkTextMessage + 4;
else if (!Q_stricmp( pName, NETWORK_MESSAGE6 ))
return gNetworkTextMessage + 5;
for ( int i = 0; i < gMessageTableCount; i++ )
{
if ( !Q_stricmp( pName, gMessageTable[i].pName ) )
return &gMessageTable[i];
}
return NULL;
}