347 lines
7.7 KiB
347 lines
7.7 KiB
/* |
|
titles.c - implementation of titles.txt parser |
|
Copyright (C) 2010 Uncle Mike |
|
|
|
This program is free software: you can redistribute it and/or modify |
|
it under the terms of the GNU General Public License as published by |
|
the Free Software Foundation, either version 3 of the License, or |
|
(at your option) any later version. |
|
|
|
This program is distributed in the hope that it will be useful, |
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
GNU General Public License for more details. |
|
*/ |
|
|
|
#include "common.h" |
|
#include "client.h" |
|
|
|
#define MAX_MESSAGES 2048 |
|
|
|
#define MSGFILE_NAME 0 |
|
#define MSGFILE_TEXT 1 |
|
|
|
client_textmessage_t gMessageParms; |
|
|
|
// the string "pText" is assumed to have all whitespace from both ends cut out |
|
static int IsComment( const char *pText ) |
|
{ |
|
if( pText ) |
|
{ |
|
int length = Q_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 |
|
static int IsStartOfText( const 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 |
|
static int IsEndOfText( const char *pText ) |
|
{ |
|
if( pText ) |
|
{ |
|
if( pText[0] == '}' ) |
|
return 1; |
|
} |
|
return 0; |
|
} |
|
|
|
static int IsWhiteSpace( char space ) |
|
{ |
|
if( space == ' ' || space == '\t' || space == '\r' || space == '\n' ) |
|
return 1; |
|
return 0; |
|
} |
|
|
|
static const char *SkipSpace( const char *pText ) |
|
{ |
|
if( pText ) |
|
{ |
|
int pos = 0; |
|
while( pText[pos] && IsWhiteSpace( pText[pos] )) |
|
pos++; |
|
return pText + pos; |
|
} |
|
return NULL; |
|
} |
|
|
|
static const char *SkipText( const char *pText ) |
|
{ |
|
if( pText ) |
|
{ |
|
int pos = 0; |
|
while( pText[pos] && !IsWhiteSpace( pText[pos] )) |
|
pos++; |
|
return pText + pos; |
|
} |
|
return NULL; |
|
} |
|
|
|
static 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] = Q_atof( pTemp ); |
|
count--; |
|
index++; |
|
} |
|
} |
|
|
|
if( count == 0 ) |
|
return 1; |
|
return 0; |
|
} |
|
|
|
static int IsToken( const char *pText, const char *pTokenName ) |
|
{ |
|
if( !pText || !pTokenName ) |
|
return 0; |
|
|
|
if( !Q_strnicmp( pText+1, pTokenName, Q_strlen( pTokenName ))) |
|
return 1; |
|
|
|
return 0; |
|
} |
|
|
|
static 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 |
|
{ |
|
Con_DPrintf( S_ERROR "unknown token: %s\n", pText ); |
|
} |
|
return 1; |
|
} |
|
return 0; |
|
} |
|
|
|
void CL_TextMessageParse( byte *pMemFile, int fileSize ) |
|
{ |
|
char buf[512], trim[512], currentName[512]; |
|
char *pCurrentText = NULL, *pNameHeap; |
|
char nameHeap[32768]; // g-cont. i will scale up heap to handle all TFC messages |
|
int mode = MSGFILE_NAME; // searching for a message name |
|
int lineNumber, filePos, lastLinePos; |
|
client_textmessage_t textMessages[MAX_MESSAGES]; |
|
int i, nameHeapSize, textHeapSize, messageSize, nameOffset; |
|
int messageCount, lastNamePos; |
|
|
|
lastNamePos = 0; |
|
lineNumber = 0; |
|
filePos = 0; |
|
lastLinePos = 0; |
|
messageCount = 0; |
|
|
|
while( COM_MemFgets( pMemFile, fileSize, &filePos, buf, 512 ) != NULL ) |
|
{ |
|
COM_TrimSpace( buf, trim ); |
|
|
|
switch( mode ) |
|
{ |
|
case MSGFILE_NAME: |
|
// skip comment lines |
|
if( IsComment( trim )) |
|
break; |
|
|
|
// Is this a directive "$command"?, if so parse it and break |
|
if( ParseDirective( trim )) |
|
break; |
|
|
|
if( IsStartOfText( trim )) |
|
{ |
|
mode = MSGFILE_TEXT; |
|
pCurrentText = (char*)(pMemFile + filePos); |
|
break; |
|
} |
|
|
|
if( IsEndOfText( trim )) |
|
{ |
|
Con_Reportf( "TextMessage: unexpected '}' found, line %d\n", lineNumber ); |
|
return; |
|
} |
|
Q_strcpy( currentName, trim ); |
|
break; |
|
case MSGFILE_TEXT: |
|
if( IsEndOfText( trim )) |
|
{ |
|
int length = Q_strlen( currentName ); |
|
|
|
// save name on name heap |
|
if( lastNamePos + length > 32768 ) |
|
{ |
|
Con_Reportf( "TextMessage: error while parsing!\n" ); |
|
return; |
|
} |
|
|
|
Q_strcpy( nameHeap + lastNamePos, currentName ); |
|
|
|
// terminate text in-place in the memory file |
|
// (it's temporary memory that will be deleted) |
|
pMemFile[lastLinePos-1] = 0; |
|
|
|
// Save name/text on heap |
|
textMessages[messageCount] = gMessageParms; |
|
textMessages[messageCount].pName = nameHeap + lastNamePos; |
|
lastNamePos += length + 1; |
|
textMessages[messageCount].pMessage = pCurrentText; |
|
messageCount++; |
|
|
|
// reset parser to search for names |
|
mode = MSGFILE_NAME; |
|
break; |
|
} |
|
if( IsStartOfText( trim )) |
|
{ |
|
Con_Reportf( "TextMessage: unexpected '{' found, line %d\n", lineNumber ); |
|
return; |
|
} |
|
break; |
|
} |
|
|
|
lineNumber++; |
|
lastLinePos = filePos; |
|
|
|
if( messageCount >= MAX_MESSAGES ) |
|
{ |
|
Con_Printf( S_WARN "Too many messages in titles.txt, max is %d\n", MAX_MESSAGES ); |
|
break; |
|
} |
|
} |
|
|
|
Con_Reportf( "TextMessage: parsed %d text messages\n", messageCount ); |
|
nameHeapSize = lastNamePos; |
|
textHeapSize = 0; |
|
|
|
for( i = 0; i < messageCount; i++ ) |
|
textHeapSize += Q_strlen( textMessages[i].pMessage ) + 1; |
|
messageSize = ( messageCount * sizeof( client_textmessage_t )); |
|
|
|
if(( textHeapSize + nameHeapSize + messageSize ) <= 0 ) |
|
{ |
|
clgame.titles = NULL; |
|
clgame.numTitles = 0; |
|
return; |
|
} |
|
|
|
// must malloc because we need to be able to clear it after initialization |
|
clgame.titles = (client_textmessage_t *)Mem_Calloc( cls.mempool, textHeapSize + nameHeapSize + messageSize ); |
|
|
|
// copy table over |
|
memcpy( clgame.titles, textMessages, messageSize ); |
|
|
|
// copy Name heap |
|
pNameHeap = ((char *)clgame.titles) + messageSize; |
|
memcpy( pNameHeap, nameHeap, nameHeapSize ); |
|
//nameOffset = pNameHeap - clgame.titles[0].pName; //undefined on amd64 |
|
|
|
|
|
// copy text & fixup pointers |
|
pCurrentText = pNameHeap + nameHeapSize; |
|
|
|
for( i = 0; i < messageCount; i++ ) |
|
{ |
|
clgame.titles[i].pName = pNameHeap; // adjust name pointer (parallel buffer) |
|
Q_strcpy( pCurrentText, clgame.titles[i].pMessage ); // copy text over |
|
clgame.titles[i].pMessage = pCurrentText; |
|
pNameHeap += Q_strlen( pNameHeap ) + 1; |
|
pCurrentText += Q_strlen( pCurrentText ) + 1; |
|
} |
|
|
|
if(( pCurrentText - (char *)clgame.titles ) != ( textHeapSize + nameHeapSize + messageSize )) |
|
Con_DPrintf( S_ERROR "TextMessage: overflow text message buffer!\n" ); |
|
|
|
clgame.numTitles = messageCount; |
|
}
|
|
|