File indexing completed on 2024-04-21 14:43:24

 /*
  * box2ddistancejoint.h
  * Copyright (c) 2011 Joonas Erkinheimo <joonas.erkinheimo@nokia.com>
  *
  * 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 BOX2DDISTANCEJOINT_H
 #define BOX2DDISTANCEJOINT_H
 
 #include "box2djoint.h"
 #include <Box2D.h>
 
 class Box2DDistanceJoint : 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(float length READ length WRITE setLength NOTIFY lengthChanged)
     Q_PROPERTY(float frequencyHz READ frequencyHz WRITE setFrequencyHz NOTIFY frequencyHzChanged)
     Q_PROPERTY(float dampingRatio READ dampingRatio WRITE setDampingRatio NOTIFY dampingRatioChanged)
 
 public:
     explicit Box2DDistanceJoint(QObject *parent = 0);
 
     QPointF localAnchorA() const;
     void setLocalAnchorA(const QPointF &localAnchorA);
 
     QPointF localAnchorB() const;
     void setLocalAnchorB(const QPointF &localAnchorB);
 
     float length() const;
     void setLength(float length);
 
     float frequencyHz() const;
     void setFrequencyHz(float frequencyHz);
 
     float dampingRatio() const;
     void setDampingRatio(float dampingRatio);
 
     b2DistanceJoint *distanceJoint() const;
 
     Q_INVOKABLE QPointF getReactionForce(float32 inv_dt) const;
     Q_INVOKABLE float getReactionTorque(float32 inv_dt) const;
 
 signals:
     void localAnchorAChanged();
     void localAnchorBChanged();
     void lengthChanged();
     void frequencyHzChanged();
     void dampingRatioChanged();
 
 protected:
     b2Joint *createJoint();
 
 private:
     QPointF m_localAnchorA;
     QPointF m_localAnchorB;
     float m_length;
     float m_frequencyHz;
     float m_dampingRatio;
     bool m_defaultLocalAnchorA;
     bool m_defaultLocalAnchorB;
     bool m_defaultLength;
 };
 
 inline QPointF Box2DDistanceJoint::localAnchorA() const
 {
     return m_localAnchorA;
 }
 
 inline QPointF Box2DDistanceJoint::localAnchorB() const
 {
     return m_localAnchorB;
 }
 
 inline float Box2DDistanceJoint::length() const
 {
     return m_length;
 }
 
 inline float Box2DDistanceJoint::frequencyHz() const
 {
     return m_frequencyHz;
 }
 
 inline float Box2DDistanceJoint::dampingRatio() const
 {
     return m_dampingRatio;
 }
 
 inline b2DistanceJoint *Box2DDistanceJoint::distanceJoint() const
 {
     return static_cast<b2DistanceJoint*>(joint());
 }
 
 #endif // BOX2DDISTANCEJOINT_H