/****************************************************************************
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** This file is part of the QtQuick module of the Qt Toolkit.
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****************************************************************************/

#ifndef SPRITEGOALAFFECTOR_H
#define SPRITEGOALAFFECTOR_H
#include "qquickparticleaffector_p.h"
#include <QtQml/qqmlinfo.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class QQuickStochasticEngine;

class QQuickSpriteGoalAffector : public QQuickParticleAffector
{
    Q_OBJECT
    Q_PROPERTY(QString goalState READ goalState WRITE setGoalState NOTIFY goalStateChanged)
    Q_PROPERTY(bool jump READ jump WRITE setJump NOTIFY jumpChanged)
    Q_PROPERTY(bool systemStates READ systemStates WRITE setSystemStates NOTIFY systemStatesChanged)
public:
    explicit QQuickSpriteGoalAffector(QQuickItem *parent = 0);

    QString goalState() const
    {
        return m_goalState;
    }

    bool jump() const
    {
        return m_jump;
    }
    bool systemStates() const
    {
        return m_systemStates;
    }

protected:
    virtual bool affectParticle(QQuickParticleData *d, qreal dt);
signals:

    void goalStateChanged(QString arg);

    void jumpChanged(bool arg);

    void systemStatesChanged(bool arg);

public slots:

void setGoalState(QString arg);

void setJump(bool arg)
{
    if (m_jump != arg) {
        m_jump = arg;
        emit jumpChanged(arg);
    }
}

void setSystemStates(bool arg)
{
    if (m_systemStates != arg) {
        //TODO: GroupGoal was added (and this deprecated) Oct 4 - remove it in a few weeks.
        qmlInfo(this) << "systemStates is deprecated and will be removed soon. Use GroupGoal instead.";
        m_systemStates = arg;
        emit systemStatesChanged(arg);
    }
}

private:
    void updateStateIndex(QQuickStochasticEngine* e);
    QString m_goalState;
    int m_goalIdx;
    QQuickStochasticEngine* m_lastEngine;
    bool m_jump;
    bool m_systemStates;

    bool m_notUsingEngine;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // SPRITEGOALAFFECTOR_H