1 | /****************************************************************************
|
---|
2 | **
|
---|
3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
|
---|
4 | ** Contact: Qt Software Information ([email protected])
|
---|
5 | **
|
---|
6 | ** This file is part of the examples of the Qt Toolkit.
|
---|
7 | **
|
---|
8 | ** $QT_BEGIN_LICENSE:LGPL$
|
---|
9 | ** Commercial Usage
|
---|
10 | ** Licensees holding valid Qt Commercial licenses may use this file in
|
---|
11 | ** accordance with the Qt Commercial License Agreement provided with the
|
---|
12 | ** Software or, alternatively, in accordance with the terms contained in
|
---|
13 | ** a written agreement between you and Nokia.
|
---|
14 | **
|
---|
15 | ** GNU Lesser General Public License Usage
|
---|
16 | ** Alternatively, this file may be used under the terms of the GNU Lesser
|
---|
17 | ** General Public License version 2.1 as published by the Free Software
|
---|
18 | ** Foundation and appearing in the file LICENSE.LGPL included in the
|
---|
19 | ** packaging of this file. Please review the following information to
|
---|
20 | ** ensure the GNU Lesser General Public License version 2.1 requirements
|
---|
21 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
---|
22 | **
|
---|
23 | ** In addition, as a special exception, Nokia gives you certain
|
---|
24 | ** additional rights. These rights are described in the Nokia Qt LGPL
|
---|
25 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
|
---|
26 | ** package.
|
---|
27 | **
|
---|
28 | ** GNU General Public License Usage
|
---|
29 | ** Alternatively, this file may be used under the terms of the GNU
|
---|
30 | ** General Public License version 3.0 as published by the Free Software
|
---|
31 | ** Foundation and appearing in the file LICENSE.GPL included in the
|
---|
32 | ** packaging of this file. Please review the following information to
|
---|
33 | ** ensure the GNU General Public License version 3.0 requirements will be
|
---|
34 | ** met: http://www.gnu.org/copyleft/gpl.html.
|
---|
35 | **
|
---|
36 | ** If you are unsure which license is appropriate for your use, please
|
---|
37 | ** contact the sales department at [email protected].
|
---|
38 | ** $QT_END_LICENSE$
|
---|
39 | **
|
---|
40 | ****************************************************************************/
|
---|
41 |
|
---|
42 | /*
|
---|
43 | * KAsteroids - Copyright (c) Martin R. Jones 1997
|
---|
44 | *
|
---|
45 | * Part of the KDE project
|
---|
46 | */
|
---|
47 |
|
---|
48 | #include <stdlib.h>
|
---|
49 | #include <math.h>
|
---|
50 | #include <qapplication.h>
|
---|
51 | #include <qnamespace.h>
|
---|
52 | #include <q3accel.h>
|
---|
53 | #include <qmessagebox.h>
|
---|
54 | #include <q3scrollview.h>
|
---|
55 | #include <qdir.h>
|
---|
56 | #include <QGraphicsItem>
|
---|
57 | //Added by qt3to4:
|
---|
58 | #include <QTimerEvent>
|
---|
59 | #include <QPixmap>
|
---|
60 | #include <QResizeEvent>
|
---|
61 | #include <QShowEvent>
|
---|
62 |
|
---|
63 | #include "view.h"
|
---|
64 |
|
---|
65 | #define IMG_BACKGROUND ":/trolltech/examples/graphicsview/portedasteroids/bg.png"
|
---|
66 |
|
---|
67 | #define REFRESH_DELAY 33
|
---|
68 | #define SHIP_SPEED 0.3
|
---|
69 | #define MISSILE_SPEED 10.0
|
---|
70 | #define SHIP_STEPS 64
|
---|
71 | #define ROTATE_RATE 2
|
---|
72 | #define SHIELD_ON_COST 1
|
---|
73 | #define SHIELD_HIT_COST 30
|
---|
74 | #define BRAKE_ON_COST 4
|
---|
75 |
|
---|
76 | #define MAX_ROCK_SPEED 2.5
|
---|
77 | #define MAX_POWERUP_SPEED 1.5
|
---|
78 | #define MAX_SHIP_SPEED 12
|
---|
79 | #define MAX_BRAKES 5
|
---|
80 | #define MAX_SHIELDS 5
|
---|
81 | #define MAX_FIREPOWER 5
|
---|
82 |
|
---|
83 | #define TEXT_SPEED 4
|
---|
84 |
|
---|
85 | #define PI_X_2 6.283185307
|
---|
86 | #ifndef M_PI
|
---|
87 | #define M_PI 3.141592654
|
---|
88 | #endif
|
---|
89 |
|
---|
90 | static struct
|
---|
91 | {
|
---|
92 | int id;
|
---|
93 | const char *path;
|
---|
94 | int frames;
|
---|
95 | }
|
---|
96 | kas_animations [] =
|
---|
97 | {
|
---|
98 | { ID_ROCK_LARGE, "rock1/rock1%1.png", 32 },
|
---|
99 | { ID_ROCK_MEDIUM, "rock2/rock2%1.png", 32 },
|
---|
100 | { ID_ROCK_SMALL, "rock3/rock3%1.png", 32 },
|
---|
101 | { ID_SHIP, "ship/ship%1.png", 32 },
|
---|
102 | { ID_MISSILE, "missile/missile.png", 1 },
|
---|
103 | { ID_BIT, "bits/bits%1.png", 16 },
|
---|
104 | { ID_EXHAUST, "exhaust/exhaust.png", 1 },
|
---|
105 | { ID_ENERGY_POWERUP, "powerups/energy.png", 1 },
|
---|
106 | // { ID_TELEPORT_POWERUP, "powerups/teleport%1.png", 12 },
|
---|
107 | { ID_BRAKE_POWERUP, "powerups/brake.png", 1 },
|
---|
108 | { ID_SHIELD_POWERUP, "powerups/shield.png", 1 },
|
---|
109 | { ID_SHOOT_POWERUP, "powerups/shoot.png", 1 },
|
---|
110 | { ID_SHIELD, "shield/shield%1.png", 6 },
|
---|
111 | { 0, 0, 0 }
|
---|
112 | };
|
---|
113 |
|
---|
114 | KAsteroidsView::KAsteroidsView( QWidget *parent, const char *name )
|
---|
115 | : QWidget( parent, name ),
|
---|
116 | field(0, 0, 640, 440),
|
---|
117 | view(&field,this)
|
---|
118 | {
|
---|
119 | view.setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
|
---|
120 | view.setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
|
---|
121 | view.setCacheMode(QGraphicsView::CacheBackground);
|
---|
122 | view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
|
---|
123 | view.setOptimizationFlags(QGraphicsView::DontClipPainter
|
---|
124 | | QGraphicsView::DontSavePainterState
|
---|
125 | | QGraphicsView::DontAdjustForAntialiasing);
|
---|
126 | view.viewport()->setFocusProxy( this );
|
---|
127 | rocks.setAutoDelete( TRUE );
|
---|
128 | missiles.setAutoDelete( TRUE );
|
---|
129 | bits.setAutoDelete( TRUE );
|
---|
130 | powerups.setAutoDelete( TRUE );
|
---|
131 | exhaust.setAutoDelete( TRUE );
|
---|
132 |
|
---|
133 | QPixmap pm( IMG_BACKGROUND );
|
---|
134 | field.setBackgroundBrush( pm );
|
---|
135 |
|
---|
136 | textSprite = new QGraphicsTextItem( 0, &field );
|
---|
137 | QFont font( "helvetica", 18 );
|
---|
138 | textSprite->setFont( font );
|
---|
139 | textSprite->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
|
---|
140 |
|
---|
141 | shield = 0;
|
---|
142 | shieldOn = FALSE;
|
---|
143 | refreshRate = REFRESH_DELAY;
|
---|
144 |
|
---|
145 | initialized = readSprites();
|
---|
146 |
|
---|
147 | shieldTimer = new QTimer( this );
|
---|
148 | connect( shieldTimer, SIGNAL(timeout()), this, SLOT(hideShield()) );
|
---|
149 | mTimerId = -1;
|
---|
150 |
|
---|
151 | shipPower = MAX_POWER_LEVEL;
|
---|
152 | vitalsChanged = TRUE;
|
---|
153 | can_destroy_powerups = FALSE;
|
---|
154 |
|
---|
155 | mPaused = TRUE;
|
---|
156 |
|
---|
157 | if ( !initialized ) {
|
---|
158 | textSprite->setHtml( tr("<font color=red>Error: Cannot read sprite images</font>") );
|
---|
159 | textSprite->setPos( (field.width()-textSprite->boundingRect().width()) / 2,
|
---|
160 | (field.height()-textSprite->boundingRect().height()) / 2 );
|
---|
161 | }
|
---|
162 | }
|
---|
163 |
|
---|
164 | // - - -
|
---|
165 |
|
---|
166 | KAsteroidsView::~KAsteroidsView()
|
---|
167 | {
|
---|
168 | }
|
---|
169 |
|
---|
170 | // - - -
|
---|
171 |
|
---|
172 | void KAsteroidsView::reset()
|
---|
173 | {
|
---|
174 | if ( !initialized )
|
---|
175 | return;
|
---|
176 | rocks.clear();
|
---|
177 | missiles.clear();
|
---|
178 | bits.clear();
|
---|
179 | powerups.clear();
|
---|
180 | exhaust.clear();
|
---|
181 |
|
---|
182 | shotsFired = 0;
|
---|
183 | shotsHit = 0;
|
---|
184 |
|
---|
185 | rockSpeed = 1.0;
|
---|
186 | powerupSpeed = 1.0;
|
---|
187 | mFrameNum = 0;
|
---|
188 | mPaused = FALSE;
|
---|
189 |
|
---|
190 | ship->hide();
|
---|
191 | shield->hide();
|
---|
192 | /*
|
---|
193 | if ( mTimerId >= 0 ) {
|
---|
194 | killTimer( mTimerId );
|
---|
195 | mTimerId = -1;
|
---|
196 | }
|
---|
197 | */
|
---|
198 | }
|
---|
199 |
|
---|
200 | // - --
|
---|
201 |
|
---|
202 | void KAsteroidsView::newGame()
|
---|
203 | {
|
---|
204 | if ( !initialized )
|
---|
205 | return;
|
---|
206 | if ( shieldOn )
|
---|
207 | {
|
---|
208 | shield->hide();
|
---|
209 | shieldOn = FALSE;
|
---|
210 | }
|
---|
211 | reset();
|
---|
212 | if ( mTimerId < 0 )
|
---|
213 | mTimerId = startTimer( REFRESH_DELAY );
|
---|
214 | emit updateVitals();
|
---|
215 | }
|
---|
216 |
|
---|
217 | // - - -
|
---|
218 |
|
---|
219 | void KAsteroidsView::endGame()
|
---|
220 | {
|
---|
221 | }
|
---|
222 |
|
---|
223 | void KAsteroidsView::pause( bool p )
|
---|
224 | {
|
---|
225 | if ( !initialized )
|
---|
226 | return;
|
---|
227 | if ( !mPaused && p ) {
|
---|
228 | if ( mTimerId >= 0 ) {
|
---|
229 | killTimer( mTimerId );
|
---|
230 | mTimerId = -1;
|
---|
231 | }
|
---|
232 | } else if ( mPaused && !p )
|
---|
233 | mTimerId = startTimer( REFRESH_DELAY );
|
---|
234 | mPaused = p;
|
---|
235 | }
|
---|
236 |
|
---|
237 | // - - -
|
---|
238 |
|
---|
239 | void KAsteroidsView::newShip()
|
---|
240 | {
|
---|
241 | if ( !initialized )
|
---|
242 | return;
|
---|
243 | ship->setPos( width()/2, height()/2 );
|
---|
244 | ship->setFrame( 0 );
|
---|
245 | shield->setPos( width()/2, height()/2 );
|
---|
246 | shield->setFrame( 0 );
|
---|
247 | ship->setVelocity( 0.0, 0.0 );
|
---|
248 | shipDx = 0;
|
---|
249 | shipDy = 0;
|
---|
250 | shipAngle = 0;
|
---|
251 | rotateL = FALSE;
|
---|
252 | rotateR = FALSE;
|
---|
253 | thrustShip = FALSE;
|
---|
254 | shootShip = FALSE;
|
---|
255 | brakeShip = FALSE;
|
---|
256 | teleportShip = FALSE;
|
---|
257 | shieldOn = TRUE;
|
---|
258 | shootDelay = 0;
|
---|
259 | shipPower = MAX_POWER_LEVEL;
|
---|
260 | rotateRate = ROTATE_RATE;
|
---|
261 | rotateSlow = 0;
|
---|
262 |
|
---|
263 | mBrakeCount = 0;
|
---|
264 | mTeleportCount = 0;
|
---|
265 | mShootCount = 0;
|
---|
266 |
|
---|
267 | ship->show();
|
---|
268 | shield->show();
|
---|
269 | mShieldCount = 1; // just in case the ship appears on a rock.
|
---|
270 | shieldTimer->start( 1000, TRUE );
|
---|
271 | }
|
---|
272 |
|
---|
273 | void KAsteroidsView::setShield( bool s )
|
---|
274 | {
|
---|
275 | if ( !initialized )
|
---|
276 | return;
|
---|
277 | if ( shieldTimer->isActive() && !s ) {
|
---|
278 | shieldTimer->stop();
|
---|
279 | hideShield();
|
---|
280 | } else {
|
---|
281 | shieldOn = s && mShieldCount;
|
---|
282 | }
|
---|
283 | }
|
---|
284 |
|
---|
285 | void KAsteroidsView::brake( bool b )
|
---|
286 | {
|
---|
287 | if ( !initialized )
|
---|
288 | return;
|
---|
289 | if ( mBrakeCount )
|
---|
290 | {
|
---|
291 | if ( brakeShip && !b )
|
---|
292 | {
|
---|
293 | rotateL = FALSE;
|
---|
294 | rotateR = FALSE;
|
---|
295 | thrustShip = FALSE;
|
---|
296 | rotateRate = ROTATE_RATE;
|
---|
297 | }
|
---|
298 |
|
---|
299 | brakeShip = b;
|
---|
300 | }
|
---|
301 | }
|
---|
302 |
|
---|
303 | // - - -
|
---|
304 |
|
---|
305 | bool KAsteroidsView::readSprites()
|
---|
306 | {
|
---|
307 | QString sprites_prefix = ":/trolltech/examples/graphicsview/portedasteroids/sprites/";
|
---|
308 |
|
---|
309 | int i = 0;
|
---|
310 | while ( kas_animations[i].id )
|
---|
311 | {
|
---|
312 | QList<QPixmap> anim;
|
---|
313 | QString wildcard = sprites_prefix + kas_animations[i].path;
|
---|
314 | wildcard.replace("%1", "*");
|
---|
315 | QFileInfo fi(wildcard);
|
---|
316 | foreach (QString entry, QDir(fi.path(), fi.fileName()).entryList())
|
---|
317 | anim << QPixmap(fi.path() + "/" + entry);
|
---|
318 | animation.insert( kas_animations[i].id, anim );
|
---|
319 | i++;
|
---|
320 | }
|
---|
321 |
|
---|
322 | ship = new AnimatedPixmapItem( animation[ID_SHIP], &field );
|
---|
323 | ship->hide();
|
---|
324 |
|
---|
325 | shield = new KShield( animation[ID_SHIELD], &field );
|
---|
326 | shield->hide();
|
---|
327 |
|
---|
328 | return (!ship->image(0).isNull() && !shield->image(0).isNull());
|
---|
329 | }
|
---|
330 |
|
---|
331 | // - - -
|
---|
332 |
|
---|
333 | void KAsteroidsView::addRocks( int num )
|
---|
334 | {
|
---|
335 | if ( !initialized )
|
---|
336 | return;
|
---|
337 | for ( int i = 0; i < num; i++ )
|
---|
338 | {
|
---|
339 | KRock *rock = new KRock( animation[ID_ROCK_LARGE], &field,
|
---|
340 | ID_ROCK_LARGE, randInt(2), randInt(2) ? -1 : 1 );
|
---|
341 | double dx = (2.0 - randDouble()*4.0) * rockSpeed;
|
---|
342 | double dy = (2.0 - randDouble()*4.0) * rockSpeed;
|
---|
343 | rock->setVelocity( dx, dy );
|
---|
344 | rock->setFrame( randInt( rock->frameCount() ) );
|
---|
345 | if ( dx > 0 )
|
---|
346 | {
|
---|
347 | if ( dy > 0 )
|
---|
348 | rock->setPos( 5, 5 );
|
---|
349 | else
|
---|
350 | rock->setPos( 5, field.height() - 25 );
|
---|
351 | rock->setFrame( 0 );
|
---|
352 | }
|
---|
353 | else
|
---|
354 | {
|
---|
355 | if ( dy > 0 )
|
---|
356 | rock->setPos( field.width() - 25, 5 );
|
---|
357 | else
|
---|
358 | rock->setPos( field.width() - 25, field.height() - 25 );
|
---|
359 | rock->setFrame( 0 );
|
---|
360 | }
|
---|
361 | rock->show();
|
---|
362 | rocks.append( rock );
|
---|
363 | }
|
---|
364 | }
|
---|
365 |
|
---|
366 | // - - -
|
---|
367 |
|
---|
368 | void KAsteroidsView::showText( const QString &text, const QColor &color, bool scroll )
|
---|
369 | {
|
---|
370 | if ( !initialized )
|
---|
371 | return;
|
---|
372 | textSprite->setHtml( QString("<font color=#%1%2%3>%4</font>")
|
---|
373 | .arg(color.red(), 2, 16, QLatin1Char('0'))
|
---|
374 | .arg(color.green(), 2, 16, QLatin1Char('0'))
|
---|
375 | .arg(color.blue(), 2, 16, QLatin1Char('0'))
|
---|
376 | .arg(text) );
|
---|
377 | Q_UNUSED(color);
|
---|
378 | // ### Porting: no such thing textSprite->setColor( color );
|
---|
379 |
|
---|
380 | if ( scroll ) {
|
---|
381 | textSprite->setPos( (field.width()-textSprite->boundingRect().width()) / 2,
|
---|
382 | -textSprite->boundingRect().height() );
|
---|
383 | textDy = TEXT_SPEED;
|
---|
384 | } else {
|
---|
385 | textSprite->setPos( (field.width()-textSprite->boundingRect().width()) / 2,
|
---|
386 | (field.height()-textSprite->boundingRect().height()) / 2 );
|
---|
387 | textDy = 0;
|
---|
388 | }
|
---|
389 | textSprite->show();
|
---|
390 | }
|
---|
391 |
|
---|
392 | // - - -
|
---|
393 |
|
---|
394 | void KAsteroidsView::hideText()
|
---|
395 | {
|
---|
396 | textDy = -TEXT_SPEED;
|
---|
397 | }
|
---|
398 |
|
---|
399 | // - - -
|
---|
400 |
|
---|
401 | void KAsteroidsView::resizeEvent(QResizeEvent* event)
|
---|
402 | {
|
---|
403 | QWidget::resizeEvent(event);
|
---|
404 | field.setSceneRect(0, 0, width()-4, height()-4);
|
---|
405 | view.resize(width(),height());
|
---|
406 | }
|
---|
407 |
|
---|
408 | // - - -
|
---|
409 |
|
---|
410 | void KAsteroidsView::timerEvent( QTimerEvent * )
|
---|
411 | {
|
---|
412 | field.advance();
|
---|
413 |
|
---|
414 | AnimatedPixmapItem *rock;
|
---|
415 |
|
---|
416 | // move rocks forward
|
---|
417 | for ( rock = rocks.first(); rock; rock = rocks.next() ) {
|
---|
418 | ((KRock *)rock)->nextFrame();
|
---|
419 | wrapSprite( rock );
|
---|
420 | }
|
---|
421 |
|
---|
422 | wrapSprite( ship );
|
---|
423 |
|
---|
424 | // check for missile collision with rocks.
|
---|
425 | processMissiles();
|
---|
426 |
|
---|
427 | // these are generated when a ship explodes
|
---|
428 | for ( KBit *bit = bits.first(); bit; bit = bits.next() )
|
---|
429 | {
|
---|
430 | if ( bit->expired() )
|
---|
431 | {
|
---|
432 | bits.removeRef( bit );
|
---|
433 | }
|
---|
434 | else
|
---|
435 | {
|
---|
436 | bit->growOlder();
|
---|
437 | bit->setFrame( ( bit->frame()+1 ) % bit->frameCount() );
|
---|
438 | }
|
---|
439 | }
|
---|
440 |
|
---|
441 | for ( KExhaust *e = exhaust.first(); e; e = exhaust.next() )
|
---|
442 | exhaust.removeRef( e );
|
---|
443 |
|
---|
444 | // move / rotate ship.
|
---|
445 | // check for collision with a rock.
|
---|
446 | processShip();
|
---|
447 |
|
---|
448 | // move powerups and check for collision with player and missiles
|
---|
449 | processPowerups();
|
---|
450 |
|
---|
451 | if ( textSprite->isVisible() )
|
---|
452 | {
|
---|
453 | if ( textDy < 0 &&
|
---|
454 | textSprite->boundingRect().y() <= -textSprite->boundingRect().height() ) {
|
---|
455 | textSprite->hide();
|
---|
456 | } else {
|
---|
457 | textSprite->moveBy( 0, textDy );
|
---|
458 | }
|
---|
459 |
|
---|
460 | if ( textSprite->sceneBoundingRect().y() > (field.height()-textSprite->boundingRect().height())/2 )
|
---|
461 | textDy = 0;
|
---|
462 | }
|
---|
463 |
|
---|
464 | if ( vitalsChanged && !(mFrameNum % 10) ) {
|
---|
465 | emit updateVitals();
|
---|
466 | vitalsChanged = FALSE;
|
---|
467 | }
|
---|
468 |
|
---|
469 | mFrameNum++;
|
---|
470 | }
|
---|
471 |
|
---|
472 | void KAsteroidsView::wrapSprite( QGraphicsItem *s )
|
---|
473 | {
|
---|
474 | int x = int(s->x() + s->boundingRect().width() / 2);
|
---|
475 | int y = int(s->y() + s->boundingRect().height() / 2);
|
---|
476 |
|
---|
477 | if ( x > field.width() )
|
---|
478 | s->setPos( s->x() - field.width(), s->y() );
|
---|
479 | else if ( x < 0 )
|
---|
480 | s->setPos( field.width() + s->x(), s->y() );
|
---|
481 |
|
---|
482 | if ( y > field.height() )
|
---|
483 | s->setPos( s->x(), s->y() - field.height() );
|
---|
484 | else if ( y < 0 )
|
---|
485 | s->setPos( s->x(), field.height() + s->y() );
|
---|
486 | }
|
---|
487 |
|
---|
488 | // - - -
|
---|
489 |
|
---|
490 | void KAsteroidsView::rockHit( AnimatedPixmapItem *hit )
|
---|
491 | {
|
---|
492 | KPowerup *nPup = 0;
|
---|
493 | int rnd = int(randDouble()*30.0) % 30;
|
---|
494 | switch( rnd )
|
---|
495 | {
|
---|
496 | case 4:
|
---|
497 | case 5:
|
---|
498 | nPup = new KPowerup( animation[ID_ENERGY_POWERUP], &field,
|
---|
499 | ID_ENERGY_POWERUP );
|
---|
500 | break;
|
---|
501 | case 10:
|
---|
502 | // nPup = new KPowerup( animation[ID_TELEPORT_POWERUP], &field,
|
---|
503 | // ID_TELEPORT_POWERUP );
|
---|
504 | break;
|
---|
505 | case 15:
|
---|
506 | nPup = new KPowerup( animation[ID_BRAKE_POWERUP], &field,
|
---|
507 | ID_BRAKE_POWERUP );
|
---|
508 | break;
|
---|
509 | case 20:
|
---|
510 | nPup = new KPowerup( animation[ID_SHIELD_POWERUP], &field,
|
---|
511 | ID_SHIELD_POWERUP );
|
---|
512 | break;
|
---|
513 | case 24:
|
---|
514 | case 25:
|
---|
515 | nPup = new KPowerup( animation[ID_SHOOT_POWERUP], &field,
|
---|
516 | ID_SHOOT_POWERUP );
|
---|
517 | break;
|
---|
518 | }
|
---|
519 | if ( nPup )
|
---|
520 | {
|
---|
521 | double r = 0.5 - randDouble();
|
---|
522 | nPup->setPos( hit->x(), hit->y() );
|
---|
523 | nPup->setFrame( 0 );
|
---|
524 | nPup->setVelocity( hit->xVelocity() + r, hit->yVelocity() + r );
|
---|
525 | powerups.append( nPup );
|
---|
526 | }
|
---|
527 |
|
---|
528 | if ( hit->type() == ID_ROCK_LARGE || hit->type() == ID_ROCK_MEDIUM )
|
---|
529 | {
|
---|
530 | // break into smaller rocks
|
---|
531 | double addx[4] = { 1.0, 1.0, -1.0, -1.0 };
|
---|
532 | double addy[4] = { -1.0, 1.0, -1.0, 1.0 };
|
---|
533 |
|
---|
534 | double dx = hit->xVelocity();
|
---|
535 | double dy = hit->yVelocity();
|
---|
536 |
|
---|
537 | double maxRockSpeed = MAX_ROCK_SPEED * rockSpeed;
|
---|
538 | if ( dx > maxRockSpeed )
|
---|
539 | dx = maxRockSpeed;
|
---|
540 | else if ( dx < -maxRockSpeed )
|
---|
541 | dx = -maxRockSpeed;
|
---|
542 | if ( dy > maxRockSpeed )
|
---|
543 | dy = maxRockSpeed;
|
---|
544 | else if ( dy < -maxRockSpeed )
|
---|
545 | dy = -maxRockSpeed;
|
---|
546 |
|
---|
547 | AnimatedPixmapItem *nrock;
|
---|
548 |
|
---|
549 | for ( int i = 0; i < 4; i++ )
|
---|
550 | {
|
---|
551 | double r = rockSpeed/2 - randDouble()*rockSpeed;
|
---|
552 | if ( hit->type() == ID_ROCK_LARGE )
|
---|
553 | {
|
---|
554 | nrock = new KRock( animation[ID_ROCK_MEDIUM], &field,
|
---|
555 | ID_ROCK_MEDIUM, randInt(2), randInt(2) ? -1 : 1 );
|
---|
556 | emit rockHit( 0 );
|
---|
557 | }
|
---|
558 | else
|
---|
559 | {
|
---|
560 | nrock = new KRock( animation[ID_ROCK_SMALL], &field,
|
---|
561 | ID_ROCK_SMALL, randInt(2), randInt(2) ? -1 : 1 );
|
---|
562 | emit rockHit( 1 );
|
---|
563 | }
|
---|
564 |
|
---|
565 | nrock->setPos( hit->x(), hit->y() );
|
---|
566 | nrock->setFrame( 0 );
|
---|
567 | nrock->setVelocity( dx+addx[i]*rockSpeed+r, dy+addy[i]*rockSpeed+r );
|
---|
568 | nrock->setFrame( randInt( nrock->frameCount() ) );
|
---|
569 | rocks.append( nrock );
|
---|
570 | }
|
---|
571 | }
|
---|
572 | else if ( hit->type() == ID_ROCK_SMALL )
|
---|
573 | emit rockHit( 2 );
|
---|
574 | rocks.removeRef( hit );
|
---|
575 | if ( rocks.count() == 0 )
|
---|
576 | emit rocksRemoved();
|
---|
577 | }
|
---|
578 |
|
---|
579 | void KAsteroidsView::reducePower( int val )
|
---|
580 | {
|
---|
581 | shipPower -= val;
|
---|
582 | if ( shipPower <= 0 )
|
---|
583 | {
|
---|
584 | shipPower = 0;
|
---|
585 | thrustShip = FALSE;
|
---|
586 | if ( shieldOn )
|
---|
587 | {
|
---|
588 | shieldOn = FALSE;
|
---|
589 | shield->hide();
|
---|
590 | }
|
---|
591 | }
|
---|
592 | vitalsChanged = TRUE;
|
---|
593 | }
|
---|
594 |
|
---|
595 | void KAsteroidsView::addExhaust( double x, double y, double dx,
|
---|
596 | double dy, int count )
|
---|
597 | {
|
---|
598 | for ( int i = 0; i < count; i++ )
|
---|
599 | {
|
---|
600 | KExhaust *e = new KExhaust( animation[ID_EXHAUST], &field );
|
---|
601 | e->setPos( x + 2 - randDouble()*4, y + 2 - randDouble()*4 );
|
---|
602 | e->setVelocity( dx, dy );
|
---|
603 | exhaust.append( e );
|
---|
604 | }
|
---|
605 | }
|
---|
606 |
|
---|
607 | void KAsteroidsView::processMissiles()
|
---|
608 | {
|
---|
609 | KMissile *missile;
|
---|
610 |
|
---|
611 | // if a missile has hit a rock, remove missile and break rock into smaller
|
---|
612 | // rocks or remove completely.
|
---|
613 | Q3PtrListIterator<KMissile> it(missiles);
|
---|
614 |
|
---|
615 | for ( ; it.current(); ++it )
|
---|
616 | {
|
---|
617 | missile = it.current();
|
---|
618 | missile->growOlder();
|
---|
619 |
|
---|
620 | if ( missile->expired() )
|
---|
621 | {
|
---|
622 | missiles.removeRef( missile );
|
---|
623 | continue;
|
---|
624 | }
|
---|
625 |
|
---|
626 | wrapSprite( missile );
|
---|
627 |
|
---|
628 | QList<QGraphicsItem *> hits = missile->collidingItems(Qt::IntersectsItemBoundingRect);
|
---|
629 | QList<QGraphicsItem *>::Iterator hit;
|
---|
630 | for ( hit = hits.begin(); hit != hits.end(); ++hit )
|
---|
631 | {
|
---|
632 | if ( (*hit)->type() >= ID_ROCK_LARGE &&
|
---|
633 | (*hit)->type() <= ID_ROCK_SMALL && (*hit)->collidesWithItem(missile) )
|
---|
634 | {
|
---|
635 | shotsHit++;
|
---|
636 | rockHit( static_cast<AnimatedPixmapItem *>(*hit) );
|
---|
637 | missiles.removeRef( missile );
|
---|
638 | break;
|
---|
639 | }
|
---|
640 | }
|
---|
641 | }
|
---|
642 | }
|
---|
643 |
|
---|
644 | // - - -
|
---|
645 |
|
---|
646 | void KAsteroidsView::processShip()
|
---|
647 | {
|
---|
648 | if ( ship->isVisible() )
|
---|
649 | {
|
---|
650 | if ( shieldOn )
|
---|
651 | {
|
---|
652 | shield->show();
|
---|
653 | reducePower( SHIELD_ON_COST );
|
---|
654 | static int sf = 0;
|
---|
655 | sf++;
|
---|
656 |
|
---|
657 | if ( sf % 2 )
|
---|
658 | shield->setFrame( (shield->frame()+1) % shield->frameCount() );
|
---|
659 | shield->setPos( ship->x() - 9, ship->y() - 9 );
|
---|
660 |
|
---|
661 | QList<QGraphicsItem *> hits = shield->collidingItems(Qt::IntersectsItemBoundingRect);
|
---|
662 | QList<QGraphicsItem *>::Iterator it;
|
---|
663 | for ( it = hits.begin(); it != hits.end(); ++it )
|
---|
664 | {
|
---|
665 | if ( (*it)->type() >= ID_ROCK_LARGE &&
|
---|
666 | (*it)->type() <= ID_ROCK_SMALL && (*it)->collidesWithItem(shield) )
|
---|
667 | {
|
---|
668 | int factor;
|
---|
669 | switch ( (*it)->type() )
|
---|
670 | {
|
---|
671 | case ID_ROCK_LARGE:
|
---|
672 | factor = 3;
|
---|
673 | break;
|
---|
674 |
|
---|
675 | case ID_ROCK_MEDIUM:
|
---|
676 | factor = 2;
|
---|
677 | break;
|
---|
678 |
|
---|
679 | default:
|
---|
680 | factor = 1;
|
---|
681 | }
|
---|
682 |
|
---|
683 | if ( factor > mShieldCount )
|
---|
684 | {
|
---|
685 | // shield not strong enough
|
---|
686 | shieldOn = FALSE;
|
---|
687 | break;
|
---|
688 | }
|
---|
689 | rockHit( static_cast<AnimatedPixmapItem *>(*it) );
|
---|
690 | // the more shields we have the less costly
|
---|
691 | reducePower( factor * (SHIELD_HIT_COST - mShieldCount*2) );
|
---|
692 | }
|
---|
693 | }
|
---|
694 | }
|
---|
695 |
|
---|
696 | if ( !shieldOn )
|
---|
697 | {
|
---|
698 | shield->hide();
|
---|
699 | QList<QGraphicsItem *> hits = ship->collidingItems(Qt::IntersectsItemBoundingRect);
|
---|
700 | QList<QGraphicsItem *>::Iterator it;
|
---|
701 | for ( it = hits.begin(); it != hits.end(); ++it )
|
---|
702 | {
|
---|
703 | if ( (*it)->type() >= ID_ROCK_LARGE &&
|
---|
704 | (*it)->type() <= ID_ROCK_SMALL && (*it)->collidesWithItem(ship))
|
---|
705 | {
|
---|
706 | KBit *bit;
|
---|
707 | for ( int i = 0; i < 12; i++ )
|
---|
708 | {
|
---|
709 | bit = new KBit( animation[ID_BIT], &field );
|
---|
710 | bit->setPos( ship->x() + 5 - randDouble() * 10,
|
---|
711 | ship->y() + 5 - randDouble() * 10 );
|
---|
712 | bit->setFrame( randInt(bit->frameCount()) );
|
---|
713 | bit->setVelocity( 1-randDouble()*2,
|
---|
714 | 1-randDouble()*2 );
|
---|
715 | bit->setDeath( 60 + randInt(60) );
|
---|
716 | bits.append( bit );
|
---|
717 | }
|
---|
718 | ship->hide();
|
---|
719 | shield->hide();
|
---|
720 | emit shipKilled();
|
---|
721 | break;
|
---|
722 | }
|
---|
723 | }
|
---|
724 | }
|
---|
725 |
|
---|
726 |
|
---|
727 | if ( rotateSlow )
|
---|
728 | rotateSlow--;
|
---|
729 |
|
---|
730 | if ( rotateL )
|
---|
731 | {
|
---|
732 | shipAngle -= rotateSlow ? 1 : rotateRate;
|
---|
733 | if ( shipAngle < 0 )
|
---|
734 | shipAngle += SHIP_STEPS;
|
---|
735 | }
|
---|
736 |
|
---|
737 | if ( rotateR )
|
---|
738 | {
|
---|
739 | shipAngle += rotateSlow ? 1 : rotateRate;
|
---|
740 | if ( shipAngle >= SHIP_STEPS )
|
---|
741 | shipAngle -= SHIP_STEPS;
|
---|
742 | }
|
---|
743 |
|
---|
744 | double angle = shipAngle * PI_X_2 / SHIP_STEPS;
|
---|
745 | double cosangle = cos( angle );
|
---|
746 | double sinangle = sin( angle );
|
---|
747 |
|
---|
748 | if ( brakeShip )
|
---|
749 | {
|
---|
750 | thrustShip = FALSE;
|
---|
751 | rotateL = FALSE;
|
---|
752 | rotateR = FALSE;
|
---|
753 | rotateRate = ROTATE_RATE;
|
---|
754 | if ( fabs(shipDx) < 2.5 && fabs(shipDy) < 2.5 )
|
---|
755 | {
|
---|
756 | shipDx = 0.0;
|
---|
757 | shipDy = 0.0;
|
---|
758 | ship->setVelocity( shipDx, shipDy );
|
---|
759 | brakeShip = FALSE;
|
---|
760 | }
|
---|
761 | else
|
---|
762 | {
|
---|
763 | double motionAngle = atan2( -shipDy, -shipDx );
|
---|
764 | if ( angle > M_PI )
|
---|
765 | angle -= PI_X_2;
|
---|
766 | double angleDiff = angle - motionAngle;
|
---|
767 | if ( angleDiff > M_PI )
|
---|
768 | angleDiff = PI_X_2 - angleDiff;
|
---|
769 | else if ( angleDiff < -M_PI )
|
---|
770 | angleDiff = PI_X_2 + angleDiff;
|
---|
771 | double fdiff = fabs( angleDiff );
|
---|
772 | if ( fdiff > 0.08 )
|
---|
773 | {
|
---|
774 | if ( angleDiff > 0 )
|
---|
775 | rotateL = TRUE;
|
---|
776 | else if ( angleDiff < 0 )
|
---|
777 | rotateR = TRUE;
|
---|
778 | if ( fdiff > 0.6 )
|
---|
779 | rotateRate = mBrakeCount + 1;
|
---|
780 | else if ( fdiff > 0.4 )
|
---|
781 | rotateRate = 2;
|
---|
782 | else
|
---|
783 | rotateRate = 1;
|
---|
784 |
|
---|
785 | if ( rotateRate > 5 )
|
---|
786 | rotateRate = 5;
|
---|
787 | }
|
---|
788 | else if ( fabs(shipDx) > 1 || fabs(shipDy) > 1 )
|
---|
789 | {
|
---|
790 | thrustShip = TRUE;
|
---|
791 | // we'll make braking a bit faster
|
---|
792 | shipDx += cosangle/6 * (mBrakeCount - 1);
|
---|
793 | shipDy += sinangle/6 * (mBrakeCount - 1);
|
---|
794 | reducePower( BRAKE_ON_COST );
|
---|
795 | addExhaust( ship->x() + 20 - cosangle*22,
|
---|
796 | ship->y() + 20 - sinangle*22,
|
---|
797 | shipDx-cosangle, shipDy-sinangle,
|
---|
798 | mBrakeCount+1 );
|
---|
799 | }
|
---|
800 | }
|
---|
801 | }
|
---|
802 |
|
---|
803 | if ( thrustShip )
|
---|
804 | {
|
---|
805 | // The ship has a terminal velocity, but trying to go faster
|
---|
806 | // still uses fuel (can go faster diagonally - don't care).
|
---|
807 | double thrustx = cosangle/4;
|
---|
808 | double thrusty = sinangle/4;
|
---|
809 | if ( fabs(shipDx + thrustx) < MAX_SHIP_SPEED )
|
---|
810 | shipDx += thrustx;
|
---|
811 | if ( fabs(shipDy + thrusty) < MAX_SHIP_SPEED )
|
---|
812 | shipDy += thrusty;
|
---|
813 | ship->setVelocity( shipDx, shipDy );
|
---|
814 | reducePower( 1 );
|
---|
815 | addExhaust( ship->x() + 20 - cosangle*20,
|
---|
816 | ship->y() + 20 - sinangle*20,
|
---|
817 | shipDx-cosangle, shipDy-sinangle, 3 );
|
---|
818 | }
|
---|
819 |
|
---|
820 | ship->setFrame( shipAngle >> 1 );
|
---|
821 |
|
---|
822 | if ( shootShip )
|
---|
823 | {
|
---|
824 | if ( !shootDelay && (int)missiles.count() < mShootCount + 2 )
|
---|
825 | {
|
---|
826 | KMissile *missile = new KMissile( animation[ID_MISSILE], &field );
|
---|
827 | missile->setPos( 21+ship->x()+cosangle*21,
|
---|
828 | 21+ship->y()+sinangle*21 );
|
---|
829 | missile->setFrame( 0 );
|
---|
830 | missile->setVelocity( shipDx + cosangle*MISSILE_SPEED,
|
---|
831 | shipDy + sinangle*MISSILE_SPEED );
|
---|
832 | missiles.append( missile );
|
---|
833 | shotsFired++;
|
---|
834 | reducePower( 1 );
|
---|
835 |
|
---|
836 | shootDelay = 5;
|
---|
837 | }
|
---|
838 |
|
---|
839 | if ( shootDelay )
|
---|
840 | shootDelay--;
|
---|
841 | }
|
---|
842 |
|
---|
843 | if ( teleportShip )
|
---|
844 | {
|
---|
845 | int ra = qrand() % 10;
|
---|
846 | if( ra == 0 )
|
---|
847 | ra += qrand() % 20;
|
---|
848 | int xra = ra * 60 + ( (qrand() % 20) * (qrand() % 20) );
|
---|
849 | int yra = ra * 50 - ( (qrand() % 20) * (qrand() % 20) );
|
---|
850 | ship->setPos( xra, yra );
|
---|
851 | }
|
---|
852 |
|
---|
853 | vitalsChanged = TRUE;
|
---|
854 | }
|
---|
855 | }
|
---|
856 |
|
---|
857 | // - - -
|
---|
858 |
|
---|
859 | void KAsteroidsView::processPowerups()
|
---|
860 | {
|
---|
861 | if ( !powerups.isEmpty() )
|
---|
862 | {
|
---|
863 | // if player gets the powerup remove it from the screen, if option
|
---|
864 | // "Can destroy powerups" is enabled and a missile hits the powerup
|
---|
865 | // destroy it
|
---|
866 |
|
---|
867 | KPowerup *pup;
|
---|
868 | Q3PtrListIterator<KPowerup> it( powerups );
|
---|
869 |
|
---|
870 | for( ; it.current(); ++it )
|
---|
871 | {
|
---|
872 | pup = it.current();
|
---|
873 | pup->growOlder();
|
---|
874 |
|
---|
875 | if( pup->expired() )
|
---|
876 | {
|
---|
877 | powerups.removeRef( pup );
|
---|
878 | continue;
|
---|
879 | }
|
---|
880 |
|
---|
881 | wrapSprite( pup );
|
---|
882 |
|
---|
883 | QList<QGraphicsItem *> hits = pup->collidingItems();
|
---|
884 | QList<QGraphicsItem *>::Iterator it;
|
---|
885 | for ( it = hits.begin(); it != hits.end(); ++it )
|
---|
886 | {
|
---|
887 | if ( (*it) == ship )
|
---|
888 | {
|
---|
889 | switch( pup->type() )
|
---|
890 | {
|
---|
891 | case ID_ENERGY_POWERUP:
|
---|
892 | shipPower += 150;
|
---|
893 | if ( shipPower > MAX_POWER_LEVEL )
|
---|
894 | shipPower = MAX_POWER_LEVEL;
|
---|
895 | break;
|
---|
896 | case ID_TELEPORT_POWERUP:
|
---|
897 | mTeleportCount++;
|
---|
898 | break;
|
---|
899 | case ID_BRAKE_POWERUP:
|
---|
900 | if ( mBrakeCount < MAX_BRAKES )
|
---|
901 | mBrakeCount++;
|
---|
902 | break;
|
---|
903 | case ID_SHIELD_POWERUP:
|
---|
904 | if ( mShieldCount < MAX_SHIELDS )
|
---|
905 | mShieldCount++;
|
---|
906 | break;
|
---|
907 | case ID_SHOOT_POWERUP:
|
---|
908 | if ( mShootCount < MAX_FIREPOWER )
|
---|
909 | mShootCount++;
|
---|
910 | break;
|
---|
911 | }
|
---|
912 |
|
---|
913 | powerups.removeRef( pup );
|
---|
914 | vitalsChanged = TRUE;
|
---|
915 | }
|
---|
916 | else if ( (*it) == shield )
|
---|
917 | {
|
---|
918 | powerups.removeRef( pup );
|
---|
919 | }
|
---|
920 | else if ( (*it)->type() == ID_MISSILE )
|
---|
921 | {
|
---|
922 | if ( can_destroy_powerups )
|
---|
923 | {
|
---|
924 | powerups.removeRef( pup );
|
---|
925 | }
|
---|
926 | }
|
---|
927 | }
|
---|
928 | }
|
---|
929 | } // -- if( powerups.isEmpty() )
|
---|
930 | }
|
---|
931 |
|
---|
932 | // - - -
|
---|
933 |
|
---|
934 | void KAsteroidsView::hideShield()
|
---|
935 | {
|
---|
936 | shield->hide();
|
---|
937 | mShieldCount = 0;
|
---|
938 | shieldOn = FALSE;
|
---|
939 | }
|
---|
940 |
|
---|
941 | double KAsteroidsView::randDouble()
|
---|
942 | {
|
---|
943 | int v = qrand();
|
---|
944 | return (double)v / (double)RAND_MAX;
|
---|
945 | }
|
---|
946 |
|
---|
947 | int KAsteroidsView::randInt( int range )
|
---|
948 | {
|
---|
949 | return qrand() % range;
|
---|
950 | }
|
---|
951 |
|
---|
952 | void KAsteroidsView::showEvent( QShowEvent *e )
|
---|
953 | {
|
---|
954 | #if defined( QT_LICENSE_PROFESSIONAL )
|
---|
955 | static bool wasThere = FALSE;
|
---|
956 |
|
---|
957 | if ( !wasThere ) {
|
---|
958 | wasThere = TRUE;
|
---|
959 | QMessageBox::information( this, tr("QGraphicsView demo"),
|
---|
960 | tr("This game has been implemented using the QGraphicsView class.\n"
|
---|
961 | "The QGraphicsView class is not part of the Light Platform Edition. Please \n"
|
---|
962 | "contact Qt Software if you want to upgrade to the Full Platform Edition.") );
|
---|
963 | }
|
---|
964 | #endif
|
---|
965 |
|
---|
966 | QWidget::showEvent( e );
|
---|
967 | }
|
---|