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**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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<span class="comment"> /*
* KAsteroids - Copyright (c) Martin R. Jones 1997
*
* Part of the KDE project
*/</span>
#include <stdlib.h>
#include <math.h>
#include <qapplication.h>
#include <qnamespace.h>
#include <q3accel.h>
#include <qmessagebox.h>
#include <q3scrollview.h>
#include <qdir.h>
#include <QGraphicsItem>
<span class="comment"> //Added by qt3to4:</span>
#include <QTimerEvent>
#include <QPixmap>
#include <QResizeEvent>
#include <QShowEvent>
#include "view.h"
#define IMG_BACKGROUND ":/trolltech/examples/graphicsview/portedasteroids/bg.png"
#define REFRESH_DELAY 33
#define SHIP_SPEED 0.3
#define MISSILE_SPEED 10.0
#define SHIP_STEPS 64
#define ROTATE_RATE 2
#define SHIELD_ON_COST 1
#define SHIELD_HIT_COST 30
#define BRAKE_ON_COST 4
#define MAX_ROCK_SPEED 2.5
#define MAX_POWERUP_SPEED 1.5
#define MAX_SHIP_SPEED 12
#define MAX_BRAKES 5
#define MAX_SHIELDS 5
#define MAX_FIREPOWER 5
#define TEXT_SPEED 4
#define PI_X_2 6.283185307
#ifndef M_PI
#define M_PI 3.141592654
#endif
static struct
{
int id;
const char *path;
int frames;
}
kas_animations [] =
{
{ ID_ROCK_LARGE, "rock1/rock1%1.png", 32 },
{ ID_ROCK_MEDIUM, "rock2/rock2%1.png", 32 },
{ ID_ROCK_SMALL, "rock3/rock3%1.png", 32 },
{ ID_SHIP, "ship/ship%1.png", 32 },
{ ID_MISSILE, "missile/missile.png", 1 },
{ ID_BIT, "bits/bits%1.png", 16 },
{ ID_EXHAUST, "exhaust/exhaust.png", 1 },
{ ID_ENERGY_POWERUP, "powerups/energy.png", 1 },
<span class="comment"> // { ID_TELEPORT_POWERUP, "powerups/teleport%1.png", 12 },</span>
{ ID_BRAKE_POWERUP, "powerups/brake.png", 1 },
{ ID_SHIELD_POWERUP, "powerups/shield.png", 1 },
{ ID_SHOOT_POWERUP, "powerups/shoot.png", 1 },
{ ID_SHIELD, "shield/shield%1.png", 6 },
{ 0, 0, 0 }
};
KAsteroidsView::KAsteroidsView( QWidget *parent, const char *name )
: QWidget( parent, name ),
field(0, 0, 640, 440),
view(&field,this)
{
view.setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
view.setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
view.setCacheMode(QGraphicsView::CacheBackground);
view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
view.setOptimizationFlags(QGraphicsView::DontClipPainter
| QGraphicsView::DontSavePainterState
| QGraphicsView::DontAdjustForAntialiasing);
view.viewport()->setFocusProxy( this );
rocks.setAutoDelete( TRUE );
missiles.setAutoDelete( TRUE );
bits.setAutoDelete( TRUE );
powerups.setAutoDelete( TRUE );
exhaust.setAutoDelete( TRUE );
QPixmap pm( IMG_BACKGROUND );
field.setBackgroundBrush( pm );
textSprite = new QGraphicsTextItem( 0, &field );
QFont font( "helvetica", 18 );
textSprite->setFont( font );
textSprite->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
shield = 0;
shieldOn = FALSE;
refreshRate = REFRESH_DELAY;
initialized = readSprites();
shieldTimer = new QTimer( this );
connect( shieldTimer, SIGNAL(timeout()), this, SLOT(hideShield()) );
mTimerId = -1;
shipPower = MAX_POWER_LEVEL;
vitalsChanged = TRUE;
can_destroy_powerups = FALSE;
mPaused = TRUE;
if ( !initialized ) {
textSprite->setHtml( tr("<font color=red>Error: Cannot read sprite images</font>") );
textSprite->setPos( (field.width()-textSprite->boundingRect().width()) / 2,
(field.height()-textSprite->boundingRect().height()) / 2 );
}
}
<span class="comment"> // - - -</span>
KAsteroidsView::~KAsteroidsView()
{
}
<span class="comment"> // - - -</span>
void KAsteroidsView::reset()
{
if ( !initialized )
return;
rocks.clear();
missiles.clear();
bits.clear();
powerups.clear();
exhaust.clear();
shotsFired = 0;
shotsHit = 0;
rockSpeed = 1.0;
powerupSpeed = 1.0;
mFrameNum = 0;
mPaused = FALSE;
ship->hide();
shield->hide();
<span class="comment"> /*
if ( mTimerId >= 0 ) {
killTimer( mTimerId );
mTimerId = -1;
}
*/</span>
}
<span class="comment"> // - --</span>
void KAsteroidsView::newGame()
{
if ( !initialized )
return;
if ( shieldOn )
{
shield->hide();
shieldOn = FALSE;
}
reset();
if ( mTimerId < 0 )
mTimerId = startTimer( REFRESH_DELAY );
emit updateVitals();
}
<span class="comment"> // - - -</span>
void KAsteroidsView::endGame()
{
}
void KAsteroidsView::pause( bool p )
{
if ( !initialized )
return;
if ( !mPaused && p ) {
if ( mTimerId >= 0 ) {
killTimer( mTimerId );
mTimerId = -1;
}
} else if ( mPaused && !p )
mTimerId = startTimer( REFRESH_DELAY );
mPaused = p;
}
<span class="comment"> // - - -</span>
void KAsteroidsView::newShip()
{
if ( !initialized )
return;
ship->setPos( width()/2, height()/2 );
ship->setFrame( 0 );
shield->setPos( width()/2, height()/2 );
shield->setFrame( 0 );
ship->setVelocity( 0.0, 0.0 );
shipDx = 0;
shipDy = 0;
shipAngle = 0;
rotateL = FALSE;
rotateR = FALSE;
thrustShip = FALSE;
shootShip = FALSE;
brakeShip = FALSE;
teleportShip = FALSE;
shieldOn = TRUE;
shootDelay = 0;
shipPower = MAX_POWER_LEVEL;
rotateRate = ROTATE_RATE;
rotateSlow = 0;
mBrakeCount = 0;
mTeleportCount = 0;
mShootCount = 0;
ship->show();
shield->show();
mShieldCount = 1; <span class="comment">// just in case the ship appears on a rock.</span>
shieldTimer->start( 1000, TRUE );
}
void KAsteroidsView::setShield( bool s )
{
if ( !initialized )
return;
if ( shieldTimer->isActive() && !s ) {
shieldTimer->stop();
hideShield();
} else {
shieldOn = s && mShieldCount;
}
}
void KAsteroidsView::brake( bool b )
{
if ( !initialized )
return;
if ( mBrakeCount )
{
if ( brakeShip && !b )
{
rotateL = FALSE;
rotateR = FALSE;
thrustShip = FALSE;
rotateRate = ROTATE_RATE;
}
brakeShip = b;
}
}
<span class="comment"> // - - -</span>
bool KAsteroidsView::readSprites()
{
QString sprites_prefix = ":/trolltech/examples/graphicsview/portedasteroids/sprites/";
int i = 0;
while ( kas_animations[i].id )
{
QList<QPixmap> anim;
QString wildcard = sprites_prefix + kas_animations[i].path;
wildcard.replace("%1", "*");
QFileInfo fi(wildcard);
foreach (QString entry, QDir(fi.path(), fi.fileName()).entryList())
anim << QPixmap(fi.path() + "/" + entry);
animation.insert( kas_animations[i].id, anim );
i++;
}
ship = new AnimatedPixmapItem( animation[ID_SHIP], &field );
ship->hide();
shield = new KShield( animation[ID_SHIELD], &field );
shield->hide();
return (!ship->image(0).isNull() && !shield->image(0).isNull());
}
<span class="comment"> // - - -</span>
void KAsteroidsView::addRocks( int num )
{
if ( !initialized )
return;
for ( int i = 0; i < num; i++ )
{
KRock *rock = new KRock( animation[ID_ROCK_LARGE], &field,
ID_ROCK_LARGE, randInt(2), randInt(2) ? -1 : 1 );
double dx = (2.0 - randDouble()*4.0) * rockSpeed;
double dy = (2.0 - randDouble()*4.0) * rockSpeed;
rock->setVelocity( dx, dy );
rock->setFrame( randInt( rock->frameCount() ) );
if ( dx > 0 )
{
if ( dy > 0 )
rock->setPos( 5, 5 );
else
rock->setPos( 5, field.height() - 25 );
rock->setFrame( 0 );
}
else
{
if ( dy > 0 )
rock->setPos( field.width() - 25, 5 );
else
rock->setPos( field.width() - 25, field.height() - 25 );
rock->setFrame( 0 );
}
rock->show();
rocks.append( rock );
}
}
<span class="comment"> // - - -</span>
void KAsteroidsView::showText( const QString &text, const QColor &color, bool scroll )
{
if ( !initialized )
return;
textSprite->setHtml( QString("<font color=#%1%2%3>%4</font>")
.arg(color.red(), 2, 16, QLatin1Char('0'))
.arg(color.green(), 2, 16, QLatin1Char('0'))
.arg(color.blue(), 2, 16, QLatin1Char('0'))
.arg(text) );
Q_UNUSED(color);
<span class="comment">// ### Porting: no such thing textSprite->setColor( color );</span>
if ( scroll ) {
textSprite->setPos( (field.width()-textSprite->boundingRect().width()) / 2,
-textSprite->boundingRect().height() );
textDy = TEXT_SPEED;
} else {
textSprite->setPos( (field.width()-textSprite->boundingRect().width()) / 2,
(field.height()-textSprite->boundingRect().height()) / 2 );
textDy = 0;
}
textSprite->show();
}
<span class="comment"> // - - -</span>
void KAsteroidsView::hideText()
{
textDy = -TEXT_SPEED;
}
<span class="comment"> // - - -</span>
void KAsteroidsView::resizeEvent(QResizeEvent* event)
{
QWidget::resizeEvent(event);
field.setSceneRect(0, 0, width()-4, height()-4);
view.resize(width(),height());
}
<span class="comment"> // - - -</span>
void KAsteroidsView::timerEvent( QTimerEvent * )
{
field.advance();
AnimatedPixmapItem *rock;
<span class="comment">// move rocks forward</span>
for ( rock = rocks.first(); rock; rock = rocks.next() ) {
((KRock *)rock)->nextFrame();
wrapSprite( rock );
}
wrapSprite( ship );
<span class="comment">// check for missile collision with rocks.</span>
processMissiles();
<span class="comment">// these are generated when a ship explodes</span>
for ( KBit *bit = bits.first(); bit; bit = bits.next() )
{
if ( bit->expired() )
{
bits.removeRef( bit );
}
else
{
bit->growOlder();
bit->setFrame( ( bit->frame()+1 ) % bit->frameCount() );
}
}
for ( KExhaust *e = exhaust.first(); e; e = exhaust.next() )
exhaust.removeRef( e );
<span class="comment">// move / rotate ship.</span>
<span class="comment">// check for collision with a rock.</span>
processShip();
<span class="comment">// move powerups and check for collision with player and missiles</span>
processPowerups();
if ( textSprite->isVisible() )
{
if ( textDy < 0 &&
textSprite->boundingRect().y() <= -textSprite->boundingRect().height() ) {
textSprite->hide();
} else {
textSprite->moveBy( 0, textDy );
}
if ( textSprite->sceneBoundingRect().y() > (field.height()-textSprite->boundingRect().height())/2 )
textDy = 0;
}
if ( vitalsChanged && !(mFrameNum % 10) ) {
emit updateVitals();
vitalsChanged = FALSE;
}
mFrameNum++;
}
void KAsteroidsView::wrapSprite( QGraphicsItem *s )
{
int x = int(s->x() + s->boundingRect().width() / 2);
int y = int(s->y() + s->boundingRect().height() / 2);
if ( x > field.width() )
s->setPos( s->x() - field.width(), s->y() );
else if ( x < 0 )
s->setPos( field.width() + s->x(), s->y() );
if ( y > field.height() )
s->setPos( s->x(), s->y() - field.height() );
else if ( y < 0 )
s->setPos( s->x(), field.height() + s->y() );
}
<span class="comment"> // - - -</span>
void KAsteroidsView::rockHit( AnimatedPixmapItem *hit )
{
KPowerup *nPup = 0;
int rnd = int(randDouble()*30.0) % 30;
switch( rnd )
{
case 4:
case 5:
nPup = new KPowerup( animation[ID_ENERGY_POWERUP], &field,
ID_ENERGY_POWERUP );
break;
case 10:
<span class="comment"> // nPup = new KPowerup( animation[ID_TELEPORT_POWERUP], &field,</span>
<span class="comment"> // ID_TELEPORT_POWERUP );</span>
break;
case 15:
nPup = new KPowerup( animation[ID_BRAKE_POWERUP], &field,
ID_BRAKE_POWERUP );
break;
case 20:
nPup = new KPowerup( animation[ID_SHIELD_POWERUP], &field,
ID_SHIELD_POWERUP );
break;
case 24:
case 25:
nPup = new KPowerup( animation[ID_SHOOT_POWERUP], &field,
ID_SHOOT_POWERUP );
break;
}
if ( nPup )
{
double r = 0.5 - randDouble();
nPup->setPos( hit->x(), hit->y() );
nPup->setFrame( 0 );
nPup->setVelocity( hit->xVelocity() + r, hit->yVelocity() + r );
powerups.append( nPup );
}
if ( hit->type() == ID_ROCK_LARGE || hit->type() == ID_ROCK_MEDIUM )
{
<span class="comment">// break into smaller rocks</span>
double addx[4] = { 1.0, 1.0, -1.0, -1.0 };
double addy[4] = { -1.0, 1.0, -1.0, 1.0 };
double dx = hit->xVelocity();
double dy = hit->yVelocity();
double maxRockSpeed = MAX_ROCK_SPEED * rockSpeed;
if ( dx > maxRockSpeed )
dx = maxRockSpeed;
else if ( dx < -maxRockSpeed )
dx = -maxRockSpeed;
if ( dy > maxRockSpeed )
dy = maxRockSpeed;
else if ( dy < -maxRockSpeed )
dy = -maxRockSpeed;
AnimatedPixmapItem *nrock;
for ( int i = 0; i < 4; i++ )
{
double r = rockSpeed/2 - randDouble()*rockSpeed;
if ( hit->type() == ID_ROCK_LARGE )
{
nrock = new KRock( animation[ID_ROCK_MEDIUM], &field,
ID_ROCK_MEDIUM, randInt(2), randInt(2) ? -1 : 1 );
emit rockHit( 0 );
}
else
{
nrock = new KRock( animation[ID_ROCK_SMALL], &field,
ID_ROCK_SMALL, randInt(2), randInt(2) ? -1 : 1 );
emit rockHit( 1 );
}
nrock->setPos( hit->x(), hit->y() );
nrock->setFrame( 0 );
nrock->setVelocity( dx+addx[i]*rockSpeed+r, dy+addy[i]*rockSpeed+r );
nrock->setFrame( randInt( nrock->frameCount() ) );
rocks.append( nrock );
}
}
else if ( hit->type() == ID_ROCK_SMALL )
emit rockHit( 2 );
rocks.removeRef( hit );
if ( rocks.count() == 0 )
emit rocksRemoved();
}
void KAsteroidsView::reducePower( int val )
{
shipPower -= val;
if ( shipPower <= 0 )
{
shipPower = 0;
thrustShip = FALSE;
if ( shieldOn )
{
shieldOn = FALSE;
shield->hide();
}
}
vitalsChanged = TRUE;
}
void KAsteroidsView::addExhaust( double x, double y, double dx,
double dy, int count )
{
for ( int i = 0; i < count; i++ )
{
KExhaust *e = new KExhaust( animation[ID_EXHAUST], &field );
e->setPos( x + 2 - randDouble()*4, y + 2 - randDouble()*4 );
e->setVelocity( dx, dy );
exhaust.append( e );
}
}
void KAsteroidsView::processMissiles()
{
KMissile *missile;
<span class="comment">// if a missile has hit a rock, remove missile and break rock into smaller</span>
<span class="comment">// rocks or remove completely.</span>
Q3PtrListIterator<KMissile> it(missiles);
for ( ; it.current(); ++it )
{
missile = it.current();
missile->growOlder();
if ( missile->expired() )
{
missiles.removeRef( missile );
continue;
}
wrapSprite( missile );
QList<QGraphicsItem *> hits = missile->collidingItems(Qt::IntersectsItemBoundingRect);
QList<QGraphicsItem *>::Iterator hit;
for ( hit = hits.begin(); hit != hits.end(); ++hit )
{
if ( (*hit)->type() >= ID_ROCK_LARGE &&
(*hit)->type() <= ID_ROCK_SMALL && (*hit)->collidesWithItem(missile) )
{
shotsHit++;
rockHit( static_cast<AnimatedPixmapItem *>(*hit) );
missiles.removeRef( missile );
break;
}
}
}
}
<span class="comment"> // - - -</span>
void KAsteroidsView::processShip()
{
if ( ship->isVisible() )
{
if ( shieldOn )
{
shield->show();
reducePower( SHIELD_ON_COST );
static int sf = 0;
sf++;
if ( sf % 2 )
shield->setFrame( (shield->frame()+1) % shield->frameCount() );
shield->setPos( ship->x() - 9, ship->y() - 9 );
QList<QGraphicsItem *> hits = shield->collidingItems(Qt::IntersectsItemBoundingRect);
QList<QGraphicsItem *>::Iterator it;
for ( it = hits.begin(); it != hits.end(); ++it )
{
if ( (*it)->type() >= ID_ROCK_LARGE &&
(*it)->type() <= ID_ROCK_SMALL && (*it)->collidesWithItem(shield) )
{
int factor;
switch ( (*it)->type() )
{
case ID_ROCK_LARGE:
factor = 3;
break;
case ID_ROCK_MEDIUM:
factor = 2;
break;
default:
factor = 1;
}
if ( factor > mShieldCount )
{
<span class="comment">// shield not strong enough</span>
shieldOn = FALSE;
break;
}
rockHit( static_cast<AnimatedPixmapItem *>(*it) );
<span class="comment">// the more shields we have the less costly</span>
reducePower( factor * (SHIELD_HIT_COST - mShieldCount*2) );
}
}
}
if ( !shieldOn )
{
shield->hide();
QList<QGraphicsItem *> hits = ship->collidingItems(Qt::IntersectsItemBoundingRect);
QList<QGraphicsItem *>::Iterator it;
for ( it = hits.begin(); it != hits.end(); ++it )
{
if ( (*it)->type() >= ID_ROCK_LARGE &&
(*it)->type() <= ID_ROCK_SMALL && (*it)->collidesWithItem(ship))
{
KBit *bit;
for ( int i = 0; i < 12; i++ )
{
bit = new KBit( animation[ID_BIT], &field );
bit->setPos( ship->x() + 5 - randDouble() * 10,
ship->y() + 5 - randDouble() * 10 );
bit->setFrame( randInt(bit->frameCount()) );
bit->setVelocity( 1-randDouble()*2,
1-randDouble()*2 );
bit->setDeath( 60 + randInt(60) );
bits.append( bit );
}
ship->hide();
shield->hide();
emit shipKilled();
break;
}
}
}
if ( rotateSlow )
rotateSlow--;
if ( rotateL )
{
shipAngle -= rotateSlow ? 1 : rotateRate;
if ( shipAngle < 0 )
shipAngle += SHIP_STEPS;
}
if ( rotateR )
{
shipAngle += rotateSlow ? 1 : rotateRate;
if ( shipAngle >= SHIP_STEPS )
shipAngle -= SHIP_STEPS;
}
double angle = shipAngle * PI_X_2 / SHIP_STEPS;
double cosangle = cos( angle );
double sinangle = sin( angle );
if ( brakeShip )
{
thrustShip = FALSE;
rotateL = FALSE;
rotateR = FALSE;
rotateRate = ROTATE_RATE;
if ( fabs(shipDx) < 2.5 && fabs(shipDy) < 2.5 )
{
shipDx = 0.0;
shipDy = 0.0;
ship->setVelocity( shipDx, shipDy );
brakeShip = FALSE;
}
else
{
double motionAngle = atan2( -shipDy, -shipDx );
if ( angle > M_PI )
angle -= PI_X_2;
double angleDiff = angle - motionAngle;
if ( angleDiff > M_PI )
angleDiff = PI_X_2 - angleDiff;
else if ( angleDiff < -M_PI )
angleDiff = PI_X_2 + angleDiff;
double fdiff = fabs( angleDiff );
if ( fdiff > 0.08 )
{
if ( angleDiff > 0 )
rotateL = TRUE;
else if ( angleDiff < 0 )
rotateR = TRUE;
if ( fdiff > 0.6 )
rotateRate = mBrakeCount + 1;
else if ( fdiff > 0.4 )
rotateRate = 2;
else
rotateRate = 1;
if ( rotateRate > 5 )
rotateRate = 5;
}
else if ( fabs(shipDx) > 1 || fabs(shipDy) > 1 )
{
thrustShip = TRUE;
<span class="comment">// we'll make braking a bit faster</span>
shipDx += cosangle/6 * (mBrakeCount - 1);
shipDy += sinangle/6 * (mBrakeCount - 1);
reducePower( BRAKE_ON_COST );
addExhaust( ship->x() + 20 - cosangle*22,
ship->y() + 20 - sinangle*22,
shipDx-cosangle, shipDy-sinangle,
mBrakeCount+1 );
}
}
}
if ( thrustShip )
{
<span class="comment">// The ship has a terminal velocity, but trying to go faster</span>
<span class="comment">// still uses fuel (can go faster diagonally - don't care).</span>
double thrustx = cosangle/4;
double thrusty = sinangle/4;
if ( fabs(shipDx + thrustx) < MAX_SHIP_SPEED )
shipDx += thrustx;
if ( fabs(shipDy + thrusty) < MAX_SHIP_SPEED )
shipDy += thrusty;
ship->setVelocity( shipDx, shipDy );
reducePower( 1 );
addExhaust( ship->x() + 20 - cosangle*20,
ship->y() + 20 - sinangle*20,
shipDx-cosangle, shipDy-sinangle, 3 );
}
ship->setFrame( shipAngle >> 1 );
if ( shootShip )
{
if ( !shootDelay && (int)missiles.count() < mShootCount + 2 )
{
KMissile *missile = new KMissile( animation[ID_MISSILE], &field );
missile->setPos( 21+ship->x()+cosangle*21,
21+ship->y()+sinangle*21 );
missile->setFrame( 0 );
missile->setVelocity( shipDx + cosangle*MISSILE_SPEED,
shipDy + sinangle*MISSILE_SPEED );
missiles.append( missile );
shotsFired++;
reducePower( 1 );
shootDelay = 5;
}
if ( shootDelay )
shootDelay--;
}
if ( teleportShip )
{
int ra = qrand() % 10;
if( ra == 0 )
ra += qrand() % 20;
int xra = ra * 60 + ( (qrand() % 20) * (qrand() % 20) );
int yra = ra * 50 - ( (qrand() % 20) * (qrand() % 20) );
ship->setPos( xra, yra );
}
vitalsChanged = TRUE;
}
}
<span class="comment"> // - - -</span>
void KAsteroidsView::processPowerups()
{
if ( !powerups.isEmpty() )
{
<span class="comment">// if player gets the powerup remove it from the screen, if option</span>
<span class="comment">// "Can destroy powerups" is enabled and a missile hits the powerup</span>
<span class="comment">// destroy it</span>
KPowerup *pup;
Q3PtrListIterator<KPowerup> it( powerups );
for( ; it.current(); ++it )
{
pup = it.current();
pup->growOlder();
if( pup->expired() )
{
powerups.removeRef( pup );
continue;
}
wrapSprite( pup );
QList<QGraphicsItem *> hits = pup->collidingItems();
QList<QGraphicsItem *>::Iterator it;
for ( it = hits.begin(); it != hits.end(); ++it )
{
if ( (*it) == ship )
{
switch( pup->type() )
{
case ID_ENERGY_POWERUP:
shipPower += 150;
if ( shipPower > MAX_POWER_LEVEL )
shipPower = MAX_POWER_LEVEL;
break;
case ID_TELEPORT_POWERUP:
mTeleportCount++;
break;
case ID_BRAKE_POWERUP:
if ( mBrakeCount < MAX_BRAKES )
mBrakeCount++;
break;
case ID_SHIELD_POWERUP:
if ( mShieldCount < MAX_SHIELDS )
mShieldCount++;
break;
case ID_SHOOT_POWERUP:
if ( mShootCount < MAX_FIREPOWER )
mShootCount++;
break;
}
powerups.removeRef( pup );
vitalsChanged = TRUE;
}
else if ( (*it) == shield )
{
powerups.removeRef( pup );
}
else if ( (*it)->type() == ID_MISSILE )
{
if ( can_destroy_powerups )
{
powerups.removeRef( pup );
}
}
}
}
} <span class="comment">// -- if( powerups.isEmpty() )</span>
}
<span class="comment"> // - - -</span>
void KAsteroidsView::hideShield()
{
shield->hide();
mShieldCount = 0;
shieldOn = FALSE;
}
double KAsteroidsView::randDouble()
{
int v = qrand();
return (double)v / (double)RAND_MAX;
}
int KAsteroidsView::randInt( int range )
{
return qrand() % range;
}
void KAsteroidsView::showEvent( QShowEvent *e )
{
#if defined( QT_LICENSE_PROFESSIONAL )
static bool wasThere = FALSE;
if ( !wasThere ) {
wasThere = TRUE;
QMessageBox::information( this, tr("QGraphicsView demo"),
tr("This game has been implemented using the QGraphicsView class.\n"
"The QGraphicsView class is not part of the Light Platform Edition. Please \n"
"contact Nokia if you want to upgrade to the Full Platform Edition.") );
}
#endif
QWidget::showEvent( e );
}</pre>
<p /><address><hr /><div align="center">
<table width="100%" cellspacing="0" border="0"><tr class="address">
<td width="40%" align="left">Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies)</td>
<td width="20%" align="center"><a href="trademarks.html">Trademarks</a></td>
<td width="40%" align="right"><div align="right">Qt 4.6.3</div></td>
</tr></table></div></address></body>
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