khanat-opennel-code/code/snowballs2/server/position/src/physics.h
2014-05-13 05:14:09 +00:00

63 lines
1.9 KiB
C++

// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef PHYSICS_H
#define PHYSICS_H
//
// Includes
//
#include <nel/misc/vector.h>
#include <nel/misc/time_nl.h>
//
// External classes
//
class CTrajectory
{
NLMISC::CVector _StartPosition;
NLMISC::CVector _EndPosition;
float _Speed;
NLMISC::TTime _StartTime;
NLMISC::TTime _StopTime;
float _Distance;
public:
void init(const NLMISC::CVector &position, const NLMISC::CVector &target, float speed, NLMISC::TTime startTime)
{
_StartPosition = position;
_EndPosition = target;
_Speed = speed;
_StartTime = startTime;
_Distance = (_EndPosition-_StartPosition).norm();
_StopTime = (NLMISC::TTime)(_Distance/_Speed*1000.0+_StartTime);
}
// void compute(const NLMISC::CVector &position, const NLMISC::CVector &target, float speed, NLMISC::TTime startTime);
NLMISC::CVector eval(NLMISC::TTime t) const;
NLMISC::CVector evalSpeed(NLMISC::TTime t) const;
NLMISC::TTime getStartTime() const { return _StartTime; }
NLMISC::CVector getStartPosition() const { return _StartPosition; }
NLMISC::TTime getStopTime() const { return _StopTime; }
};
#endif // PHYSICS_H
/* End of physics.h */