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timersdl.cpp

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00001 /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-
00002 
00003    this file is part of rcssserver3D
00004    Fri May 9 2003
00005    Copyright (C) 2002,2003 Koblenz University
00006    Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
00007    $Id: timersdl.cpp,v 1.4 2004/04/23 20:53:23 fruit Exp $
00008 
00009    This program is free software; you can redistribute it and/or modify
00010    it under the terms of the GNU General Public License as published by
00011    the Free Software Foundation; version 2 of the License.
00012 
00013    This program is distributed in the hope that it will be useful,
00014    but WITHOUT ANY WARRANTY; without even the implied warranty of
00015    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016    GNU General Public License for more details.
00017 
00018    You should have received a copy of the GNU General Public License
00019    along with this program; if not, write to the Free Software
00020    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00021 */
00022 #include "timersdl.h"
00023 #include <zeitgeist/logserver/logserver.h>
00024 
00025 using namespace kerosin;
00026 
00027 TimerSDL::TimerSDL() : mLastTicks(0)
00028 {
00029 }
00030 
00031 TimerSDL::~TimerSDL()
00032 {
00033 }
00034 
00035 bool
00036 TimerSDL::Init(kerosin::InputSystem *inputSystem)
00037 {
00038     if (InputDevice::Init(inputSystem) == false)
00039     {
00040         return false;
00041     }
00042 
00043     mLastTicks = SDL_GetTicks();
00044 
00045     return true;
00046 }
00047 
00048 int
00049 TimerSDL::EventFilter(const SDL_Event* event)
00050 {
00051     return 1;
00052 }
00053 
00054 void
00055 TimerSDL::GetInput(kerosin::InputServer::Input& input)
00056 {
00057     input.type      = InputServer::eAxis;
00058     input.code      = mInputSystem->GetInputServer()->IC_AXIST;
00059 
00060     unsigned int ticks = SDL_GetTicks();
00061 
00062     // FIXME: ticks might wrap
00063     input.data.l = ticks - mLastTicks;
00064     mLastTicks = ticks;
00065 }

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