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/*
SPDX-FileCopyrightText: 2007 Vladimir Kuznetsov <ks.vladimir@gmail.com>
SPDX-FileCopyrightText: 2014 Inge Wallin <inge@lysator.liu.se>
SPDX-License-Identifier: GPL-2.0-or-later
*/
/** \file force.h
* \brief Contains the Force object.
*/
#ifndef STEPCORE_FORCE_H
#define STEPCORE_FORCE_H
#include <vector> // XXX: Replace if Qt is enabled.
#include "types.h"
#include "item.h"
namespace StepCore
{
/** \ingroup forces
* \brief Interface for forces
*
* Force is anything that acts upon bodies changing derivatives of dynamic variables
*/
class Force : public Item
{
STEPCORE_OBJECT(Force)
public:
explicit Force(const QString& name = QString())
: Item(name)
{}
virtual ~Force() {}
/** Calculate force. Bodies can be accessed through
* this->world()->bodies()
*/
virtual void calcForce(bool calcVariances) = 0;
};
/** List of pointers to Force */
typedef std::vector<Force*> ForceList;
} // namespace StepCore
#endif
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