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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