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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef STICKMAN_H
#define STICKMAN_H

#include <QGraphicsObject>

static const int NodeCount = 16;
static const int BoneCount = 24;

class Node;
class StickMan: public QGraphicsObject
{
    Q_OBJECT
    Q_PROPERTY(QColor penColor WRITE setPenColor READ penColor)
    Q_PROPERTY(QColor fillColor WRITE setFillColor READ fillColor)
    Q_PROPERTY(bool isDead WRITE setIsDead READ isDead)
public:
    StickMan();

    QRectF boundingRect() const override;
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;

    int nodeCount() const;
    Node *node(int idx) const;

    void setDrawSticks(bool on);
    bool drawSticks() const { return m_sticks; }

    QColor penColor() const { return m_penColor; }
    void setPenColor(const QColor &color) { m_penColor = color; }

    QColor fillColor() const { return m_fillColor; }
    void setFillColor(const QColor &color) { m_fillColor = color; }

    bool isDead() const { return m_isDead; }
    void setIsDead(bool isDead) { m_isDead = isDead; }

public slots:
    void stabilize();
    void childPositionChanged();

protected:
    void timerEvent(QTimerEvent *e) override;

private:

    QPointF posFor(int idx) const;

    Node *m_nodes[NodeCount];
    qreal m_perfectBoneLengths[BoneCount];

    bool m_sticks = true;
    bool m_isDead = false;

    QColor m_penColor = Qt::white;
    QColor m_fillColor = Qt::black;
};

#endif // STICKMAN_H