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box2dwheeljoint.h
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box2dwheeljoint.h
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/*
* box2dwheeljoint.h
* Copyright (c) 2011 Joonas Erkinheimo <[email protected]>
* Copyright (c) 2011 Markus Kivioja <[email protected]>
*
* This file is part of the Box2D QML plugin.
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in
* a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*/
#ifndef BOX2DWHEELJOINT_H
#define BOX2DWHEELJOINT_H
#include "box2djoint.h"
#include <Box2D.h>
class Box2DWheelJoint : public Box2DJoint
{
Q_OBJECT
Q_PROPERTY(QPointF localAnchorA READ localAnchorA WRITE setLocalAnchorA NOTIFY localAnchorAChanged)
Q_PROPERTY(QPointF localAnchorB READ localAnchorB WRITE setLocalAnchorB NOTIFY localAnchorBChanged)
Q_PROPERTY(QPointF localAxisA READ localAxisA WRITE setLocalAxisA NOTIFY localAxisAChanged)
Q_PROPERTY(float dampingRatio READ dampingRatio WRITE setDampingRatio NOTIFY dampingRatioChanged)
Q_PROPERTY(float frequencyHz READ frequencyHz WRITE setFrequencyHz NOTIFY frequencyHzChanged)
Q_PROPERTY(float maxMotorTorque READ maxMotorTorque WRITE setMaxMotorTorque NOTIFY maxMotorTorqueChanged)
Q_PROPERTY(float motorSpeed READ motorSpeed WRITE setMotorSpeed NOTIFY motorSpeedChanged)
Q_PROPERTY(bool enableMotor READ enableMotor WRITE setEnableMotor NOTIFY enableMotorChanged)
public:
explicit Box2DWheelJoint(QObject *parent = 0);
QPointF localAnchorA() const;
void setLocalAnchorA(const QPointF &localAnchorA);
QPointF localAnchorB() const;
void setLocalAnchorB(const QPointF &localAnchorB);
QPointF localAxisA() const;
void setLocalAxisA(const QPointF &localAxisA);
bool enableMotor() const;
void setEnableMotor(bool enableMotor);
float maxMotorTorque() const;
void setMaxMotorTorque(float maxMotorTorque);
float motorSpeed() const;
void setMotorSpeed(float motorSpeed);
float frequencyHz() const;
void setFrequencyHz(float frequencyHz);
float dampingRatio() const;
void setDampingRatio(float dampingRatio);
b2WheelJoint *wheelJoint() const;
Q_INVOKABLE QPointF getReactionForce(float32 inv_dt) const;
Q_INVOKABLE float getReactionTorque(float32 inv_dt) const;
Q_INVOKABLE float getJointTranslation() const;
Q_INVOKABLE float getJointSpeed() const;
signals:
void localAnchorAChanged();
void localAnchorBChanged();
void localAxisAChanged();
void enableMotorChanged();
void maxMotorTorqueChanged();
void motorSpeedChanged();
void frequencyHzChanged();
void dampingRatioChanged();
protected:
b2Joint *createJoint();
private:
QPointF m_localAnchorA;
QPointF m_localAnchorB;
QPointF m_localAxisA;
bool m_enableMotor;
float m_maxMotorTorque;
float m_motorSpeed;
float m_frequencyHz;
float m_dampingRatio;
bool m_defaultLocalAnchorA;
bool m_defaultLocalAnchorB;
bool m_defaultLocalAxisA;
};
inline QPointF Box2DWheelJoint::localAnchorA() const
{
return m_localAnchorA;
}
inline QPointF Box2DWheelJoint::localAnchorB() const
{
return m_localAnchorB;
}
inline QPointF Box2DWheelJoint::localAxisA() const
{
return m_localAxisA;
}
inline bool Box2DWheelJoint::enableMotor() const
{
return m_enableMotor;
}
inline float Box2DWheelJoint::maxMotorTorque() const
{
return m_maxMotorTorque;
}
inline float Box2DWheelJoint::motorSpeed() const
{
return m_motorSpeed;
}
inline float Box2DWheelJoint::frequencyHz() const
{
return m_frequencyHz;
}
inline float Box2DWheelJoint::dampingRatio() const
{
return m_dampingRatio;
}
inline b2WheelJoint *Box2DWheelJoint::wheelJoint() const
{
return static_cast<b2WheelJoint*>(joint());
}
#endif // BOX2DWHEELJOINT_H