scummvm/engines/cruise/stack.cpp
Vincent Hamm c01aa37caa Add cruise source code for scummvm
svn-id: r26605
2007-04-27 12:58:35 +00:00

86 lines
1.8 KiB
C++

/* ScummVM - Scumm Interpreter
* Copyright (C) 2006 The ScummVM project
*
* cinE Engine is (C) 2004-2005 by CinE Team
*
* 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 2
* 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.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "cruise/cruise_main.h"
namespace Cruise {
// 4 type bigger than the old one, but much safer/cleaner
stackElementStruct scriptStack[SIZE_STACK];
// VAR
void pushVar(int16 var)
{
if(positionInStack<SIZE_STACK)
{
scriptStack[positionInStack].data.shortVar = var;
scriptStack[positionInStack].type = STACK_SHORT;
positionInStack++;
}
}
int16 popVar(void)
{
if(positionInStack<=0)
{
return(0);
}
positionInStack--;
ASSERT(scriptStack[positionInStack].type == STACK_SHORT);
return(scriptStack[positionInStack].data.shortVar);
}
//// PTR
void pushPtr(void* ptr)
{
if(positionInStack<SIZE_STACK)
{
scriptStack[positionInStack].data.ptrVar = ptr;
scriptStack[positionInStack].type = STACK_PTR;
positionInStack++;
}
}
void* popPtr()
{
if(positionInStack<=0)
{
return(0);
}
positionInStack--;
ASSERT(scriptStack[positionInStack].type == STACK_PTR);
return(scriptStack[positionInStack].data.ptrVar);
}
} // End of namespace Cruise