1 /**************************************************************************
2 Ghosts Overboard - a game for Maemo 5
4 Copyright (C) 2011 Heli Hyvättinen
6 This file is part of Ghosts Overboard
8 Ghosts Overboard is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 **************************************************************************/
26 #include <QGraphicsPixmapItem>
28 #include <QMessageBox>
30 #include <QApplication>
32 #include <QPushButton>
34 #include <QVBoxLayout>
37 const QString ghostImageFilename_ = ":/pix/aave.png";
38 const QString rockImageFilename_ =":/pix/kari.png";
39 const QString octopusImageFilename_= ":/pix/tursas.png";
42 SeaScene::SeaScene(QObject *parent) :
43 QGraphicsScene(parent)
46 screenLitKeeper_.keepScreenLit(true);
50 QPixmap waves (":/pix/meri.png");
52 setBackgroundBrush(QBrush(waves));
56 qsrand(QTime::currentTime().msec()+2); //+2 to avoid setting it to 1
58 //Setup the level list
61 levelList_.append(level1);
62 Level level2(5,10,2,50);
63 levelList_.append(level2);
64 Level level3(5,15,2,50);
65 levelList_.append(level3);
66 Level level4(5,15,4,50);
67 levelList_.append(level4);
68 Level level5(5,15,5,100);
69 levelList_.append(level5);
73 //This ensures that nextlevel will not be called until its safe to delete the Ship object.
74 //Leaving out Qt::QueuedConnection or calling nextlevel directly instead of emitting the signal will CRASH
75 connect(this,SIGNAL(allGhostsPicked()),this,SLOT(nextLevel()),Qt::QueuedConnection);
78 pVibrateAction_ = new QAction(tr("Vibration effects"),this);
79 pVibrateAction_->setCheckable(true);
80 connect(pVibrateAction_,SIGNAL(toggled(bool)),this,SLOT(vibrationActivate(bool)));
82 pVibrateAction_->setChecked(settings.value("vibration",false).toBool());
85 pPauseAction_ = new QAction(tr("Pause"),this);
86 pPauseAction_->setCheckable(true);
87 connect(pPauseAction_,SIGNAL(toggled(bool)),this,SLOT(pause(bool)));
92 void SeaScene::setupMap(int ghosts, int rocks, int octopuses, int octopusSpeed)
100 //empty the list of moving items
102 movingItems_.clear();
104 //empty the list of free slots
107 //fill the list of free slots
109 int numberOfXTiles = width() / 40;
110 int numberOfYTiles = height() /40;
112 // qDebug() << numberOfXTiles << " slots in x direction";
113 // qDebug() << numberOfYTiles << " slots in y rirection";
115 for (int i = 0; i < numberOfXTiles; i++ )
117 for (int j = 0; j < numberOfYTiles; j++)
119 freeTiles_.append(QPointF(i*40,j*40));
126 for (int i = 0; i < rocks; i++)
128 QPointF * pPosition = findRandomFreeSlot();
130 //If there was no room no point to continue
131 if (pPosition == NULL)
134 QPixmap rockPixmap (":/pix/kari.png");
135 QGraphicsPixmapItem * pRock = addPixmap(rockPixmap);
136 pRock->setData(0,"rock");
137 pRock->setPos(*pPosition);
144 ghostsLeft_ = ghosts;
145 spreadGhosts(ghosts);
149 //spread the octopuses
151 QList <Octopus*> octopusList;
153 for (int i=0; i < octopuses; i++)
155 QPointF * pPosition = findRandomFreeSlot();
157 //If there was no room no point to continue
158 if (pPosition == NULL)
161 QPixmap octopusPixmap (":/pix/tursas.png");
162 Octopus * pOctopus = new Octopus(octopusPixmap,octopusSpeed);
163 pOctopus->setData(0,"octopus");
164 pOctopus->setPos(*pPosition);
166 pOctopus->startMoving();
167 movingItems_.append(pOctopus);
168 connect(this,SIGNAL(pauseOn()),pOctopus,SLOT(stopMoving()));
169 connect(this,SIGNAL(pauseOff()),pOctopus,SLOT(startMoving()));
170 octopusList.append(pOctopus);
178 QPointF * pPosition = findRandomFreeSlot();
179 if (pPosition == NULL)
181 // Game cannot begin without a free position for ship, so give an error message and return
183 QMessageBox::critical(NULL,"Error! Too many objects on screen","No free space to place the ship. The game cannot start. Please choose another level.");
187 QList<QPixmap> shipImages;
188 shipImages.append(QPixmap(":/pix/laiva.png"));
189 shipImages.append(QPixmap(":/pix/laiva_1aave.png"));
190 shipImages.append(QPixmap(":/pix/laiva_2aave.png"));
191 shipImages.append(QPixmap(":/pix/laiva_3aave.png"));
192 shipImages.append(QPixmap(":/pix/laiva_4aave.png"));
193 shipImages.append(QPixmap(":/pix/laiva_5aave.png"));
194 shipImages.append(QPixmap(":/pix/laiva_6aave.png"));
195 shipImages.append(QPixmap(":/pix/laiva_7aave.png"));
196 shipImages.append(QPixmap(":/pix/laiva_8aave.png"));
197 shipImages.append(QPixmap(":/pix/laiva_9aave.png"));
198 shipImages.append(QPixmap(":/pix/laiva_10aave.png"));
200 Ship * pShip = new Ship (shipImages);
201 pShip->setData(0,"ship");
202 pShip->setPos(*pPosition);
204 connect(pShip,SIGNAL(pickingGhost(QGraphicsItem*)),this, SLOT(removeGhost(QGraphicsItem*)) );
205 connect(pShip,SIGNAL(droppingGhosts(int)),this,SLOT(ghostsDropped(int)));
206 connect(this,SIGNAL(vibrationActivated(bool)),pShip,SLOT(setVibrationActivate(bool)));
207 pShip->startMoving();
208 movingItems_.append(pShip);
209 connect(this,SIGNAL(pauseOn()),pShip,SLOT(stopMoving()));
210 connect(this,SIGNAL(pauseOff()),pShip,SLOT(startMoving()));
211 foreach (Octopus* pOctopus, octopusList)
213 connect(pOctopus,SIGNAL(droppingGhosts()),pShip,SLOT(dropAllGhosts()));
218 void SeaScene::setupMap(Level level)
220 setupMap(level.getNumberOfGhosts(),level.getNumberOfRocks(),level.getNumberOfOctopuses(),level.getOctopusSpeed());
223 void SeaScene::spreadGhosts(int ghosts)
227 //the octopuses and the ship may have moved from their original positions,
228 //so the list of free slots must be adjusted to exclude their current positions
230 QList<QPointF> temporarilyReservedSlots;
232 foreach (QGraphicsItem* pItem, movingItems_)
236 // qDebug() << "NULL item in movingItems_";
240 //round x and y down to fit the slot size
250 QPointF position (x,y);
252 //remove the tiles (potentially) occupied by the item from free slots and place in temp list if was in the list before
254 if (freeTiles_.removeOne(position))
255 temporarilyReservedSlots.append(position);
260 if (freeTiles_.removeOne(position))
261 temporarilyReservedSlots.append(position);
265 if (freeTiles_.removeOne(position))
266 temporarilyReservedSlots.append(position);
270 if (freeTiles_.removeOne(position))
271 temporarilyReservedSlots.append(position);
276 //spread ghosts in random free slots
278 for (int i=0; i < ghosts; i++)
280 QPointF * pPosition = findRandomFreeSlot();
282 //If there was no room no point to continue
283 if (pPosition == NULL)
286 QPixmap ghostPixmap(":/pix/aave.png");
287 QGraphicsPixmapItem * pGhost = addPixmap(ghostPixmap);
288 pGhost->setData(0,"ghost");
289 pGhost->setPos(*pPosition);
293 //return the slots occupied by moving items to free slots
294 freeTiles_.append(temporarilyReservedSlots);
296 //clear temp for the next round
297 temporarilyReservedSlots.clear();
300 QPointF* SeaScene::findRandomFreeSlot()
302 if (freeTiles_.isEmpty())
305 int index = qrand()%freeTiles_.size();
307 // qDebug() << index << " index";
308 return new QPointF (freeTiles_.takeAt(index));
312 void SeaScene::removeGhost(QGraphicsItem *pGhost)
314 removeItem(pGhost); //remove the item from scene
315 freeTiles_.append(pGhost->scenePos()); //add the item's position to free slots
318 if (ghostsLeft_ == 0)
320 emit allGhostsPicked();
321 // qDebug() << "All ghosts picked!";
325 void SeaScene::ghostsDropped(int ghosts)
327 ghostsLeft_ += ghosts;
329 spreadGhosts(ghosts);
332 void SeaScene::pause(bool paused)
334 // qDebug() << "pause pressed " << paused;
335 if (paused_ == paused)
342 // qDebug() << "starting to move again";
344 screenLitKeeper_.keepScreenLit(true);
346 pPausetextItem_->hide();
351 qDebug("about to stop movement");
353 screenLitKeeper_.keepScreenLit(false);
354 if (pPausetextItem_ != NULL)
356 qDebug() << "about to show the pause text";
357 pPausetextItem_->show();
358 qDebug() << "showing pause text";
360 else qDebug() << "No pause text available";
364 void SeaScene::vibrationActivate(bool on)
366 emit vibrationActivated(on);
369 void SeaScene::handleScreenTapped()
372 //If the game is going just pause it
375 pPauseAction_->setChecked(true);
379 //If the game is paused, chacl if menu item was selected
381 QList<QGraphicsItem *> items = selectedItems();
383 //if nothing selected resume play
387 pPauseAction_->setChecked(false);
392 //If something was selected check if it was one of the menu items and act on it
393 //(Nothing else should be made selectable anyway)
397 QGraphicsItem* pItem = items.at(0); //Selecting an item brings here, thus only selecting one item should be possible
398 //... so we can just take the first one
401 if (pItem == pRestartGameItem_)
403 qDebug() << "game restart requested";
407 else if (pItem == pRestartLevelItem_)
409 qDebug() << "Level restart requested";
414 else if (pItem == pSettingsItem_)
416 //Temporary code for settings, likely to be turned into a QML dialog
419 QMessageBox::StandardButton buttonpressed = QMessageBox::question(NULL,"Settings","Do you wish to have vibration effects enabled?", QMessageBox::Yes | QMessageBox::No);
421 if (buttonpressed == QMessageBox::Yes)
423 pVibrateAction_->setChecked(true);
424 settings.setValue("vibration",true);
426 if (buttonpressed == QMessageBox::No)
428 pVibrateAction_->setChecked(false);
429 settings.setValue("vibration",false);
433 else if (pItem == pAboutItem_)
438 else if (pItem == pQuitItem_)
444 //Selection is just used to get notice of a menu item being clicked, removed after use
448 //The user propably went to paused state just to access menu, so unpause
450 pPauseAction_->setChecked(false);
456 void SeaScene::createMenuItems()
460 font.setPixelSize(35);
464 pPausetextItem_ = new QGraphicsTextItem;
466 // This is for fremantle
467 // pPausetextItem_->setHtml("<font size = \"5\" color = darkorange> Game paused. Tap to continue.");
469 //Harmattan needs bigger font
470 pPausetextItem_->setHtml("<font size = \"7\" color = darkorange> Game paused. Tap to continue.");
473 pPausetextItem_->setZValue(1000);
474 pPausetextItem_->setPos(200,50);
475 addItem(pPausetextItem_);
476 pPausetextItem_->hide();
480 // This is for fremantle
481 // QString menufonthtml = "<font size = \"4\" color = darkorange>";
484 //Harmattan needs bigger font
485 QString menufonthtml = "<font size = \"6\" color = darkorange>";
488 pRestartGameItem_ = new QGraphicsTextItem;
489 pRestartGameItem_->setHtml(tr("Restart <br> game").prepend(menufonthtml));
490 prepareForMenu(pRestartGameItem_);
492 pRestartLevelItem_ = new QGraphicsTextItem;
493 pRestartLevelItem_->setHtml(tr("Restart <br> level").prepend(menufonthtml));
494 prepareForMenu(pRestartLevelItem_);
496 pSettingsItem_ = new QGraphicsTextItem;
497 pSettingsItem_->setHtml(tr("Vibration <br> effects").prepend(menufonthtml));
498 prepareForMenu(pSettingsItem_);
500 pAboutItem_ = new QGraphicsTextItem;
501 pAboutItem_->setHtml(tr("About <br> game").prepend(menufonthtml));
502 prepareForMenu(pAboutItem_);
504 pQuitItem_ = new QGraphicsTextItem;
505 pQuitItem_->setHtml(tr("Quit <br> game").prepend(menufonthtml));
506 prepareForMenu(pQuitItem_);
510 void SeaScene::prepareForMenu(QGraphicsItem * pItem)
513 //Menu items have pause text item as their parent and are thus added to scene automatically
514 //They are also shown and hidden with it, resulting in the menu being visble when the game is paused
515 //Their coordinates are given relative to the parent.
518 pItem->setParentItem(pPausetextItem_);
519 pItem->setZValue(1000);
520 pItem->setFlag(QGraphicsItem::ItemIsSelectable);
522 pItem->setX(menuItemCount_++*160-150);
526 void SeaScene::about()
528 QMessageBox::about(NULL, tr("About %1").arg(QApplication::applicationName()),
530 "<p>Copyright 2011 Heli Hyvättinen"
531 "<p>License: General Public License v2"
532 "<p>Bug Reports: https://bugs.maemo.org/ "
533 "enter_bug.cgi?product=Ghosts%20Overboard"
534 ).arg(QApplication::applicationVersion()));
541 void SeaScene::restartLevel()
543 setupMap(levelList_.value(currentLevel_)); //value() returns default constructor Level if index is invalid, so no risk of crash
544 vibrationActivate(pVibrateAction_->isChecked()); //Vibration effects are lost without this
545 // qDebug() << pVibrateAction_->isChecked();
550 void SeaScene::nextLevel()
555 if (levelList_.empty())
559 if ( currentLevel_ < levelList_.size() )
567 QDialog* pVictoryDialog = new QDialog();
568 pVictoryDialog->setWindowTitle(tr("You won!"));
571 QPushButton* pPlayAgainButton = new QPushButton(tr("Play again"));
572 // QPushButton* pQuitButton = new QPushButton(tr("Quit game"));
574 QPixmap victoryIcon (":/pix/aavesaari.png");
575 QLabel* pVictoryLabel = new QLabel();
576 pVictoryLabel->setPixmap(victoryIcon);
578 QLabel* pTextLabel = new QLabel(tr("Congratulations! <p>You have saved all the ghosts."));
581 QVBoxLayout* pMainLayout = new QVBoxLayout;
583 QHBoxLayout* pTopLayout = new QHBoxLayout;
584 pMainLayout->addLayout(pTopLayout);
586 pTopLayout->addWidget(pVictoryLabel);
587 pTopLayout->addWidget(pTextLabel);
591 QHBoxLayout* pButtonLayout = new QHBoxLayout();
592 pMainLayout->addLayout(pButtonLayout);
594 // pButtonLayout->addWidget(pQuitButton);
595 pButtonLayout->addWidget(pPlayAgainButton);
599 pVictoryDialog->setLayout(pMainLayout);
601 connect(pPlayAgainButton, SIGNAL(clicked()),pVictoryDialog,SLOT(accept()));
603 pVictoryDialog->exec();
605 //Never mind if the user cancels the dialog: restart the game anyway
612 void SeaScene::restartGame()
619 void SeaScene::forcePause()
621 //Pause without setting the pause action state
625 void::SeaScene::softContinue()
627 //Continue if not being paused by the user
628 // Reverts forcePause()
630 pause(pPauseAction_->isChecked());