Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731

1 files changed, 908 insertions, 0 deletions

diff --git a/examples/demo/qasteroids/view.cpp b/examples/demo/qasteroids/view.cpp
new file mode 100644
index 000000000..99acca1ff
--- /dev/null
+++ b/examples/demo/qasteroids/view.cpp
@@ -0,0 +1,908 @@
+/*
+ * KAsteroids - Copyright (c) Martin R. Jones 1997
+ *
+ * Part of the KDE project
+ */
+
+#include <stdlib.h>
+#include <math.h>
+#include <qapplication.h>
+#include <qkeycode.h>
+#include <qaccel.h>
+#include <qmessagebox.h>
+
+#include "view.h"
+
+#define IMG_BACKGROUND "qasteroids/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 },
+//    { ID_TELEPORT_POWERUP, "powerups/teleport%1.png", 12 },
+    { 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( TQWidget *parent, const char *name )
+    : TQWidget( parent, name ),
+      field(640, 440),
+      view(&field,this)
+{
+    view.setVScrollBarMode( TQScrollView::AlwaysOff );
+    view.setHScrollBarMode( TQScrollView::AlwaysOff );
+    view.viewport()->setFocusProxy( this );
+    rocks.setAutoDelete( TRUE );
+    missiles.setAutoDelete( TRUE );
+    bits.setAutoDelete( TRUE );
+    powerups.setAutoDelete( TRUE );
+    exhaust.setAutoDelete( TRUE );
+
+    field.setBackgroundColor( black );
+    TQPixmap pm( IMG_BACKGROUND );
+    field.setBackgroundPixmap( pm );
+
+    textSprite = new TQCanvasText( &field );
+    TQFont font( "helvetica", 18 );
+    textSprite->setFont( font );
+
+    shield = 0;
+    shieldOn = FALSE;
+    refreshRate = REFRESH_DELAY;
+
+    initialized = readSprites();
+
+    shieldTimer = new TQTimer( 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->setText( tr("Error: Cannot read sprite images") );
+	textSprite->setColor( red );
+	textSprite->move( (field.width()-textSprite->boundingRect().width()) / 2,
+			  (field.height()-textSprite->boundingRect().height()) / 2 );
+	textSprite->show();
+    }
+}
+
+// - - -
+
+KAsteroidsView::~KAsteroidsView()
+{
+}
+
+// - - -
+
+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();
+/*
+    if ( mTimerId >= 0 ) {
+	killTimer( mTimerId );
+	mTimerId = -1;
+    }
+*/
+}
+
+// - --
+
+void KAsteroidsView::newGame()
+{
+    if ( !initialized )
+	return;
+    if ( shieldOn )
+    {
+      shield->hide();
+      shieldOn = FALSE;
+    }
+    reset();
+    if ( mTimerId < 0 )
+	mTimerId = startTimer( REFRESH_DELAY );
+    emit updateVitals();
+}
+
+// - - -
+
+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;
+}
+
+// - - -
+
+void KAsteroidsView::newShip()
+{
+    if ( !initialized )
+	return;
+    ship->move( width()/2, height()/2, 0 );
+    shield->move( width()/2, height()/2, 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;   // just in case the ship appears on a rock.
+    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;
+    }
+}
+
+// - - -
+
+bool KAsteroidsView::readSprites()
+{
+    TQString sprites_prefix = "qasteroids/sprites/";
+
+    int i = 0;
+    while ( kas_animations[i].id )
+    {
+	TQCanvasPixmapArray *anim =
+	    new TQCanvasPixmapArray( sprites_prefix + kas_animations[i].path,
+				    kas_animations[i].frames );
+	if ( !anim->isValid() )
+	    return FALSE;
+	animation.insert( kas_animations[i].id, anim );
+	i++;
+    }
+
+    ship = new TQCanvasSprite( animation[ID_SHIP], &field );
+    ship->hide();
+
+    shield = new KShield( animation[ID_SHIELD], &field );
+    shield->hide();
+
+    return (ship->image(0) && shield->image(0));
+}
+
+// - - -
+
+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->move( 5, 5, 0 );
+	    else
+		rock->move( 5, field.height() - 25, 0 );
+	}
+	else
+	{
+	    if ( dy > 0 )
+		rock->move( field.width() - 25, 5, 0 );
+	    else
+		rock->move( field.width() - 25, field.height() - 25, 0 );
+	}
+	rock->show( );
+	rocks.append( rock );
+    }
+}
+
+// - - -
+
+void KAsteroidsView::showText( const TQString &text, const TQColor &color, bool scroll )
+{
+    if ( !initialized )
+	return;
+    textSprite->setText( text );
+    textSprite->setColor( color );
+
+    if ( scroll ) {
+	textSprite->move( (field.width()-textSprite->boundingRect().width()) / 2,
+			    -textSprite->boundingRect().height() );
+	textDy = TEXT_SPEED;
+    } else {
+	textSprite->move( (field.width()-textSprite->boundingRect().width()) / 2,
+			  (field.height()-textSprite->boundingRect().height()) / 2 );
+	textDy = 0;
+    }
+    textSprite->show();
+}
+
+// - - -
+
+void KAsteroidsView::hideText()
+{
+    textDy = -TEXT_SPEED;
+}
+
+// - - -
+
+void KAsteroidsView::resizeEvent(TQResizeEvent* event)
+{
+    TQWidget::resizeEvent(event);
+    field.resize(width()-4, height()-4);
+    view.resize(width(),height());
+}
+
+// - - -
+
+void KAsteroidsView::timerEvent( TQTimerEvent * )
+{
+    field.advance();
+
+    TQCanvasSprite *rock;
+
+    // move rocks forward
+    for ( rock = rocks.first(); rock; rock = rocks.next() ) {
+	((KRock *)rock)->nextFrame();
+	wrapSprite( rock );
+    }
+
+    wrapSprite( ship );
+
+    // check for missile collision with rocks.
+    processMissiles();
+
+    // these are generated when a ship explodes
+    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 );
+
+    // move / rotate ship.
+    // check for collision with a rock.
+    processShip();
+
+    // move powerups and check for collision with player and missiles
+    processPowerups();
+
+    if ( textSprite->isVisible() )
+    {
+	if ( textDy < 0 &&
+	     textSprite->boundingRect().y() <= -textSprite->boundingRect().height() ) {
+	    textSprite->hide();
+	} else {
+	    textSprite->moveBy( 0, textDy );
+	}
+	if ( textSprite->boundingRect().y() > (field.height()-textSprite->boundingRect().height())/2 )
+	    textDy = 0;
+    }
+
+    if ( vitalsChanged && !(mFrameNum % 10) ) {
+	emit updateVitals();
+	vitalsChanged = FALSE;
+    }
+
+    mFrameNum++;
+}
+
+void KAsteroidsView::wrapSprite( TQCanvasItem *s )
+{
+    int x = int(s->x() + s->boundingRect().width() / 2);
+    int y = int(s->y() + s->boundingRect().height() / 2);
+
+    if ( x > field.width() )
+	s->move( s->x() - field.width(), s->y() );
+    else if ( x < 0 )
+	s->move( field.width() + s->x(), s->y() );
+
+    if ( y > field.height() )
+	s->move( s->x(), s->y() - field.height() );
+    else if ( y < 0 )
+	s->move( s->x(), field.height() + s->y() );
+}
+
+// - - -
+
+void KAsteroidsView::rockHit( TQCanvasItem *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:
+//        nPup = new KPowerup( animation[ID_TELEPORT_POWERUP], &field,
+//                             ID_TELEPORT_POWERUP );
+	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->move( hit->x(), hit->y(), 0 );
+	nPup->setVelocity( hit->xVelocity() + r, hit->yVelocity() + r );
+	nPup->show( );
+	powerups.append( nPup );
+    }
+
+    if ( hit->rtti() == ID_ROCK_LARGE || hit->rtti() == ID_ROCK_MEDIUM )
+    {
+	// break into smaller rocks
+	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;
+
+	TQCanvasSprite *nrock;
+
+	for ( int i = 0; i < 4; i++ )
+	{
+	    double r = rockSpeed/2 - randDouble()*rockSpeed;
+	    if ( hit->rtti() == 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->move( hit->x(), hit->y(), 0 );
+	    nrock->setVelocity( dx+addx[i]*rockSpeed+r, dy+addy[i]*rockSpeed+r );
+	    nrock->setFrame( randInt( nrock->frameCount() ) );
+	    nrock->show( );
+	    rocks.append( nrock );
+	}
+    }
+    else if ( hit->rtti() == ID_ROCK_SMALL )
+	emit rockHit( 2 );
+    rocks.removeRef( (TQCanvasSprite *)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->move( x + 2 - randDouble()*4, y + 2 - randDouble()*4 );
+	e->setVelocity( dx, dy );
+	e->show( );
+	exhaust.append( e );
+    }
+}
+
+void KAsteroidsView::processMissiles()
+{
+    KMissile *missile;
+
+    // if a missile has hit a rock, remove missile and break rock into smaller
+    // rocks or remove completely.
+    TQPtrListIterator<KMissile> it(missiles);
+
+    for ( ; it.current(); ++it )
+    {
+	missile = it.current();
+	missile->growOlder();
+
+	if ( missile->expired() )
+	{
+	    missiles.removeRef( missile );
+	    continue;
+	}
+
+	wrapSprite( missile );
+
+	TQCanvasItemList hits = missile->collisions( TRUE );
+	TQCanvasItemList::Iterator hit;
+	for ( hit = hits.begin(); hit != hits.end(); ++hit )
+	{
+	    if ( (*hit)->rtti() >= ID_ROCK_LARGE &&
+		 (*hit)->rtti() <= ID_ROCK_SMALL )
+	    {
+		shotsHit++;
+		rockHit( *hit );
+		missiles.removeRef( missile );
+		break;
+	    }
+	}
+    }
+}
+
+// - - -
+
+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->move( ship->x() - 9, ship->y() - 9 );
+
+	    TQCanvasItemList hits = shield->collisions( TRUE );
+	    TQCanvasItemList::Iterator it;
+	    for ( it = hits.begin(); it != hits.end(); ++it )
+	    {
+		if ( (*it)->rtti() >= ID_ROCK_LARGE &&
+		     (*it)->rtti() <= ID_ROCK_SMALL )
+		{
+		    int factor;
+		    switch ( (*it)->rtti() )
+		    {
+			case ID_ROCK_LARGE:
+			    factor = 3;
+			    break;
+
+			case ID_ROCK_MEDIUM:
+			    factor = 2;
+			    break;
+
+			default:
+			    factor = 1;
+		    }
+
+		    if ( factor > mShieldCount )
+		    {
+			// shield not strong enough
+			shieldOn = FALSE;
+			break;
+		    }
+		    rockHit( *it );
+		    // the more shields we have the less costly
+		    reducePower( factor * (SHIELD_HIT_COST - mShieldCount*2) );
+		}
+	    }
+	}
+
+	if ( !shieldOn )
+	{
+	    shield->hide();
+	    TQCanvasItemList hits = ship->collisions( TRUE );
+	    TQCanvasItemList::Iterator it;
+	    for ( it = hits.begin(); it != hits.end(); ++it )
+	    {
+		if ( (*it)->rtti() >= ID_ROCK_LARGE &&
+		     (*it)->rtti() <= ID_ROCK_SMALL )
+		{
+		    KBit *bit;
+		    for ( int i = 0; i < 12; i++ )
+		    {
+		      bit = new KBit( animation[ID_BIT], &field );
+		      bit->move( ship->x() + 5 - randDouble() * 10,
+				 ship->y() + 5 - randDouble() * 10,
+				 randInt(bit->frameCount()) );
+		      bit->setVelocity( 1-randDouble()*2,
+					1-randDouble()*2 );
+		      bit->setDeath( 60 + randInt(60) );
+		      bit->show( );
+		      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;
+		    // we'll make braking a bit faster
+		    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 )
+	{
+	    // The ship has a terminal velocity, but trying to go faster
+	    // still uses fuel (can go faster diagonally - don't care).
+	    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->move( 21+ship->x()+cosangle*21,
+			     21+ship->y()+sinangle*21, 0 );
+	      missile->setVelocity( shipDx + cosangle*MISSILE_SPEED,
+				    shipDy + sinangle*MISSILE_SPEED );
+	      missile->show( );
+	      missiles.append( missile );
+	      shotsFired++;
+	      reducePower( 1 );
+
+	      shootDelay = 5;
+	    }
+
+	    if ( shootDelay )
+	      shootDelay--;
+	}
+
+	if ( teleportShip )
+	{
+	    int ra = rand() % 10;
+	    if( ra == 0 )
+	    ra += rand() % 20;
+	    int xra = ra * 60 + ( (rand() % 20) * (rand() % 20) );
+	    int yra = ra * 50 - ( (rand() % 20) * (rand() % 20) );
+	    ship->move( xra, yra );
+	}
+
+	vitalsChanged = TRUE;
+    }
+}
+
+// - - -
+
+void KAsteroidsView::processPowerups()
+{
+    if ( !powerups.isEmpty() )
+    {
+	// if player gets the powerup remove it from the screen, if option
+	// "Can destroy powerups" is enabled and a missile hits the powerup
+	// destroy it
+
+	KPowerup *pup;
+	TQPtrListIterator<KPowerup> it( powerups );
+
+	for( ; it.current(); ++it )
+	{
+	    pup = it.current();
+	    pup->growOlder();
+
+	    if( pup->expired() )
+	    {
+		powerups.removeRef( pup );
+		continue;
+	    }
+
+	    wrapSprite( pup );
+
+	    TQCanvasItemList hits = pup->collisions( TRUE );
+	    TQCanvasItemList::Iterator it;
+	    for ( it = hits.begin(); it != hits.end(); ++it )
+	    {
+		if ( (*it) == ship )
+		{
+		    switch( pup->rtti() )
+		    {
+		      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)->rtti() == ID_MISSILE )
+		{
+		    if ( can_destroy_powerups )
+		    {
+		      powerups.removeRef( pup );
+		    }
+		}
+	    }
+	}
+    }         // -- if( powerups.isEmpty() )
+}
+
+// - - -
+
+void KAsteroidsView::hideShield()
+{
+    shield->hide();
+    mShieldCount = 0;
+    shieldOn = FALSE;
+}
+
+double KAsteroidsView::randDouble()
+{
+    int v = rand();
+    return (double)v / (double)RAND_MAX;
+}
+
+int KAsteroidsView::randInt( int range )
+{
+    return rand() % range;
+}
+
+void KAsteroidsView::showEvent( TQShowEvent *e )
+{
+#if defined( QT_LICENSE_PROFESSIONAL )
+    static bool wasThere = FALSE;
+
+    if ( !wasThere ) {
+	wasThere = TRUE;
+	TQMessageBox::information( this, tr("TQCanvas demo"),
+				  tr("This game has been implemented using the TQCanvas class.\n"
+				     "The TQCanvas class is not part of the Professional Edition. Please \n"
+				     "contact Trolltech if you want to upgrade to the Enterprise Edition.") );
+    }
+#endif
+
+    TQWidget::showEvent( e );
+}