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File: swobject.c

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// Emacs style mode select -*- C++ -*-
//---------------------------------------------------------------------------
//
// $Id: swobject.c,v 1.1.1.1 2003/02/14 19:03:17 fraggle Exp $
//
// Copyright(C) 1984-2000 David L. Clark
// Copyright(C) 2001-2003 Simon Howard
//
// 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., 59 Temple
// Place - Suite 330, Boston, MA 02111-1307, USA.
//
//---------------------------------------------------------------------------
//
//        swobject -      SW object allocation and deallocation
//
//---------------------------------------------------------------------------

#include "sw.h"
#include "swmain.h"
#include "swobject.h"

OBJECTS *allocobj()
{
	register OBJECTS *ob;

	if (!objfree)
		return NULL;

	ob = objfree;
	objfree = ob->ob_next;

	ob->ob_next = NULL;
	ob->ob_prev = objbot;

	if (objbot)
		objbot->ob_next = ob;
	else
		objtop = ob;

	ob->ob_sound = NULL;
	ob->ob_drwflg = ob->ob_delflg = 0;
	if (ob > objsmax)
		objsmax = ob;
	return (objbot = ob);
}



void deallobj(OBJECTS * obp)
{
	register OBJECTS *ob=obp;
	register OBJECTS *obb = ob->ob_prev;

	if (obb)
		obb->ob_next = ob->ob_next;
	else
		objtop = ob->ob_next;

	obb = ob->ob_next;

	if (obb)
		obb->ob_prev = ob->ob_prev;
	else
		objbot = ob->ob_prev;

	ob->ob_next = 0;
	if (delbot)
		delbot->ob_next = ob;
	else
		deltop = ob;

	delbot = ob;


}

//---------------------------------------------------------------------------
//
// $Log: swobject.c,v $
// Revision 1.1.1.1  2003/02/14 19:03:17  fraggle
// Initial Sourceforge CVS import
//
//
// sdh 14/2/2003: change license header to GPL
// sdh 21/10/2001: rearranged headers, added cvs tags
// sdh 21/10/2001: reformatted with indent. adjusted some code by hand
//                 to make more readable
// sdh 19/10/2001: removed externs (now in headers)
// sdh 18/10/2001: converted all functions to ANSI-style arguments
//
//
// 87-03-09        Microsoft compiler.
// 84-10-31        Atari
// 84-06-12        PCjr Speed-up
// 84-02-07        Development
//
//---------------------------------------------------------------------------