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qt3/examples/demo/qasteroids/sprites.h

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/*
* KAsteroids - Copyright (c) Martin R. Jones 1997
*
* Part of the KDE project
*/
#ifndef __SPRITES_H__
#define __SPRITES_H__
#include <qcanvas.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 QCanvasSprite
{
public:
KMissile( QCanvasPixmapArray *s, QCanvas *c ) : QCanvasSprite( s, c )
{ myAge = 0; }
virtual int rtti() const { return ID_MISSILE; }
void growOlder() { myAge++; }
bool expired() { return myAge > MAX_MISSILE_AGE; }
private:
int myAge;
};
class KBit : public QCanvasSprite
{
public:
KBit( QCanvasPixmapArray *s, QCanvas *c ) : QCanvasSprite( s, c )
{ death = 7; }
virtual int rtti() const { return ID_BIT; }
void setDeath( int d ) { death = d; }
void growOlder() { death--; }
bool expired() { return death <= 0; }
private:
int death;
};
class KExhaust : public QCanvasSprite
{
public:
KExhaust( QCanvasPixmapArray *s, QCanvas *c ) : QCanvasSprite( s, c )
{ death = 1; }
virtual int rtti() const { return ID_EXHAUST; }
void setDeath( int d ) { death = d; }
void growOlder() { death--; }
bool expired() { return death <= 0; }
private:
int death;
};
class KPowerup : public QCanvasSprite
{
public:
KPowerup( QCanvasPixmapArray *s, QCanvas *c, int t ) : QCanvasSprite( s, c ),
myAge( 0 ), type(t) { }
virtual int rtti() const { return type; }
void growOlder() { myAge++; }
bool expired() const { return myAge > MAX_POWERUP_AGE; }
protected:
int myAge;
int type;
};
class KRock : public QCanvasSprite
{
public:
KRock (QCanvasPixmapArray *s, QCanvas *c, int t, int sk, int st) : QCanvasSprite( s, c )
{ type = t; skip = cskip = sk; step = st; }
void nextFrame()
{
if (cskip-- <= 0) {
setFrame( (frame()+step+frameCount())%frameCount() );
cskip = QABS(skip);
}
}
virtual int rtti() const { return type; }
private:
int type;
int skip;
int cskip;
int step;
};
class KShield : public QCanvasSprite
{
public:
KShield( QCanvasPixmapArray *s, QCanvas *c )
: QCanvasSprite( s, c ) {}
virtual int rtti() const { return ID_SHIELD; }
};
#endif