ref: 21eb6a6831d2f622db3d63c8f4ea0450f1f852b1
dir: /rott/_engine.h/
/*
Copyright (C) 1994-1995 Apogee Software, Ltd.
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.
*/
#ifndef _engine_private
#define _engine_private
#define NOTSAMETILE(x1,x2) ( (posts[(x1)].posttype!=posts[(x2)].posttype) || \
(posts[(x1)].offset!=posts[(x2)].offset))
#define SGN(x) (x>0 ? 1 : -1)
#endif