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delta_manager.hxx

Go to the documentation of this file.

//  $Id: delta_manager.hxx,v 1.1 2002/11/20 00:46:11 grumbel Exp $
// 
//  Construo - A wire-frame construction game
//  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
//
//  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 HEADER_CONSTRUO_DELTAMANAGER_HXX
#define HEADER_CONSTRUO_DELTAMANAGER_HXX

#include "construo.hxx"
#include "system_context.hxx"

class DeltaManager
{
private:
  unsigned int last_time;
public:
  DeltaManager ()
    : last_time (system_context->get_time ())
  {}

  float getset ()
  {
    float ret = get ();
    set ();
    return ret;
  }
  
  void set () 
  {
    last_time = system_context->get_time ();
  }
  
  float get () 
  {
    return ( system_context->get_time () - last_time) / 1000.0f;
  }
};

#endif

/* EOF */

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