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# sprites.h Example File
graphicsview/portedasteroids/sprites.h

    /****************************************************************************
    **
    ** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    /*
     * KAsteroids - Copyright (c) Martin R. Jones 1997
     *
     * Part of the KDE project
     */

    #ifndef __SPRITES_H__
    #define __SPRITES_H__

    #include "animateditem.h"

    #define ID_ROCK_LARGE           1024
    #define ID_ROCK_MEDIUM          1025
    #define ID_ROCK_SMALL           1026

    #define ID_MISSILE              1030

    #define ID_BIT                  1040
    #define ID_EXHAUST              1041

    #define ID_ENERGY_POWERUP       1310
    #define ID_TELEPORT_POWERUP     1311
    #define ID_BRAKE_POWERUP        1312
    #define ID_SHIELD_POWERUP       1313
    #define ID_SHOOT_POWERUP        1314

    #define ID_SHIP                 1350
    #define ID_SHIELD               1351

    #define MAX_SHIELD_AGE          350
    #define MAX_POWERUP_AGE         500
    #define MAX_MISSILE_AGE         40

    class KMissile : public AnimatedPixmapItem
    {
    public:
        KMissile( const QList<QPixmap> &s, QGraphicsScene *c ) : AnimatedPixmapItem( s, c )
            { myAge = 0; }

        virtual int type() const { return ID_MISSILE; }

        void growOlder() { myAge++; }
        bool expired() { return myAge > MAX_MISSILE_AGE; }

    private:
        int myAge;
    };

    class KBit : public AnimatedPixmapItem
    {
    public:
        KBit( const QList<QPixmap> &s, QGraphicsScene *c ) : AnimatedPixmapItem( s, c )
            {  death = 7; }

        virtual int type() const {  return ID_BIT; }

        void setDeath( int d ) { death = d; }
        void growOlder() { death--; }
        bool expired() { return death <= 0; }

    private:
        int death;
    };

    class KExhaust : public AnimatedPixmapItem
    {
    public:
        KExhaust( const QList<QPixmap> &s, QGraphicsScene *c ) : AnimatedPixmapItem( s, c )
            {  death = 1; }

        virtual int type() const {  return ID_EXHAUST; }

        void setDeath( int d ) { death = d; }
        void growOlder() { death--; }
        bool expired() { return death <= 0; }

    private:
        int death;
    };

    class KPowerup : public AnimatedPixmapItem
    {
    public:
      KPowerup( const QList<QPixmap> &s, QGraphicsScene *c, int t ) : AnimatedPixmapItem( s, c ),
            myAge( 0 ), _type(t) { }

      virtual int type() const { return _type; }

      void growOlder() { myAge++; }
      bool expired() const { return myAge > MAX_POWERUP_AGE; }

    protected:
      int myAge;
      int _type;
    };

    class KRock : public AnimatedPixmapItem
    {
    public:
        KRock (const QList<QPixmap> &s, QGraphicsScene *c, int t, int sk, int st) : AnimatedPixmapItem( s, c )
            { _type = t; skip = cskip = sk; step = st; }

        void nextFrame()
            {
                if (cskip-- <= 0) {
                    setFrame( (frame()+step+frameCount())%frameCount() );
                    cskip = QABS(skip);
                }
            }

        virtual int type() const { return _type; }

    private:
        int _type;
        int skip;
        int cskip;
        int step;
    };

    class KShield : public AnimatedPixmapItem
    {
    public:
      KShield( QList<QPixmap> &s, QGraphicsScene *c )
          : AnimatedPixmapItem( s, c ) {}

      virtual int type() const { return ID_SHIELD; }
    };

    #endif