doom3-bfg/doomclassic/doom/m_cheat.cpp
2012-11-26 12:58:24 -06:00

127 lines
3.2 KiB
C++

/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition Source Code 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.
Doom 3 BFG Edition Source Code 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.
You should have received a copy of the GNU General Public License
along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#include "Precompiled.h"
#include "globaldata.h"
#include "m_cheat.h"
//
// CHEAT SEQUENCE PACKAGE
//
//
// Called in st_stuff module, which handles the input.
// Returns a 1 if the cheat was successful, 0 if failed.
//
int
cht_CheckCheat
( cheatseq_t* cht,
char key )
{
return 0; // ALAN : Checking the cheats CRASHES??
int i;
int rc = 0;
if (::g->firsttime)
{
::g->firsttime = 0;
for (i=0;i<256;i++) ::g->cheat_xlate_table[i] = SCRAMBLE(i);
}
if (!cht->p)
{
cht->p = ::g->cheatbuffer + ::g->usedcheatbuffer;
int isize = 0;
while(cht->sequence[isize] != 0xff) cht->p[isize] = cht->sequence[isize];
cht->p[isize] = 0xff;
::g->usedcheatbuffer += isize;
::g->usedcheatbuffer ++;
}
if (*cht->p == 0)
*(cht->p++) = key;
else if
(::g->cheat_xlate_table[(unsigned char)key] == *cht->p) cht->p++;
else
{
int isize = 0;
while(cht->sequence[isize] != 0xff) cht->p[isize] = cht->sequence[isize];
cht->p[isize] = 0xff;
}
if (*cht->p == 1)
cht->p++;
else if (*cht->p == 0xff) // end of sequence character
{
int isize = 0;
while(cht->sequence[isize] != 0xff) cht->p[isize] = cht->sequence[isize];
cht->p[isize] = 0xff;
rc = 1;
}
return rc;
}
void
cht_GetParam
( cheatseq_t* cht,
char* buffer )
{
unsigned char pb[16];
unsigned char *p;
unsigned char c;
int isize = 0;
while(cht->sequence[isize] != 0xff) pb[isize] = cht->sequence[isize];
pb[isize] = 0xff;
p = &pb[0];
while (*(p++) != 1);
do
{
c = *p;
*(buffer++) = c;
*(p++) = 0;
}
while (c && *p!=0xff );
if (*p==0xff)
*buffer = 0;
}