+/**************************************************************************
+ Ghosts Overboard - a game for Maemo 5
+
+ Copyright (C) 2011 Heli Hyvättinen
+
+ This file is part of Ghosts Overboard
+
+ Ghosts Overboard is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+**************************************************************************/
+
#include "seascene.h"
+#include "octopus.h"
+#include "ship.h"
#include <QGraphicsPixmapItem>
#include <QDebug>
+#include <QMessageBox>
+#include <QTime>
const QString ghostImageFilename_ = ":/pix/aave.png";
const QString rockImageFilename_ =":/pix/kari.png";
SeaScene::SeaScene(QObject *parent) :
QGraphicsScene(parent)
{
+ paused_ = false;
+ screenLitKeeper_.keepScreenLit(true);
+
+ //set background
+
+ QPixmap waves (":/pix/meri.png");
+ waves.scaled(20,20);
+ setBackgroundBrush(QBrush(waves));
+
+ //set random seed
+
+ qsrand(QTime::currentTime().msec()+2); //+2 to avoid setting it to 1
+
+ //connect selecting to menu handling (only menu items selectable)
+
+ connect(this,SIGNAL(selectionChanged()),this,SLOT(menuClicked()));
+
+
+
+
+
+
+
}
-void SeaScene::setupMap(int ghosts, int rocks, int octopuses)
+void SeaScene::setupMap(int ghosts, int rocks, int octopuses, int octopusSpeed)
{
+ //empty the map
+
+ clear();
+
+ createMenuItems();
+
+ //empty the list of moving items
+
+ movingItems_.clear();
+
//empty the list of free slots
freeTiles_.clear();
int numberOfXTiles = width() / 40;
int numberOfYTiles = height() /40;
- qDebug() << numberOfXTiles << " slots in x direction";
- qDebug() << numberOfYTiles << " slots in y rirection";
+// qDebug() << numberOfXTiles << " slots in x direction";
+// qDebug() << numberOfYTiles << " slots in y rirection";
for (int i = 0; i < numberOfXTiles; i++ )
{
freeTiles_.append(QPointF(i*40,j*40));
}
}
+
+
+ //spread the rocks
+
+ for (int i = 0; i < rocks; i++)
+ {
+ QPointF * pPosition = findRandomFreeSlot();
+
+ //If there was no room no point to continue
+ if (pPosition == NULL)
+ break;
+
+ QPixmap rockPixmap (":/pix/kari.png");
+ QGraphicsPixmapItem * pRock = addPixmap(rockPixmap);
+ pRock->setData(0,"rock");
+ pRock->setPos(*pPosition);
+ delete pPosition;
+
+ }
+
+ //spread the ghosts
+
+ ghostsLeft_ = ghosts;
spreadGhosts(ghosts);
+
+
+
+ //spread the octopuses
+
+ QList <Octopus*> octopusList;
+
+ for (int i=0; i < octopuses; i++)
+ {
+ QPointF * pPosition = findRandomFreeSlot();
+
+ //If there was no room no point to continue
+ if (pPosition == NULL)
+ break;
+
+ QPixmap octopusPixmap (":/pix/tursas.png");
+ Octopus * pOctopus = new Octopus(octopusPixmap,octopusSpeed);
+ pOctopus->setData(0,"octopus");
+ pOctopus->setPos(*pPosition);
+ addItem(pOctopus);
+ pOctopus->startMoving();
+ movingItems_.append(pOctopus);
+ connect(this,SIGNAL(pauseOn()),pOctopus,SLOT(stopMoving()));
+ connect(this,SIGNAL(pauseOff()),pOctopus,SLOT(startMoving()));
+ octopusList.append(pOctopus);
+ delete pPosition;
+
+ }
+
+
+ //place the ship
+
+ QPointF * pPosition = findRandomFreeSlot();
+ if (pPosition == NULL)
+ {
+ // Game cannot begin without a free position for ship, so give an error message and return
+
+ QMessageBox::critical(NULL,"Error! Too many objects on screen","No free space to place the ship. The game cannot start. Please choose another level.");
+ return;
+ }
+
+ QList<QPixmap> shipImages;
+ shipImages.append(QPixmap(":/pix/laiva.png"));
+ shipImages.append(QPixmap(":/pix/laiva_1aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_2aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_3aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_4aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_5aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_6aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_7aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_8aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_9aave.png"));
+ shipImages.append(QPixmap(":/pix/laiva_10aave.png"));
+
+ Ship * pShip = new Ship (shipImages);
+ pShip->setData(0,"ship");
+ pShip->setPos(*pPosition);
+ addItem(pShip);
+ connect(pShip,SIGNAL(pickingGhost(QGraphicsItem*)),this, SLOT(removeGhost(QGraphicsItem*)) );
+ connect(pShip,SIGNAL(droppingGhosts(int)),this,SLOT(ghostsDropped(int)));
+ connect(this,SIGNAL(vibrationActivated(bool)),pShip,SLOT(setVibrationActivate(bool)));
+ pShip->startMoving();
+ movingItems_.append(pShip);
+ connect(this,SIGNAL(pauseOn()),pShip,SLOT(stopMoving()));
+ connect(this,SIGNAL(pauseOff()),pShip,SLOT(startMoving()));
+ foreach (Octopus* pOctopus, octopusList)
+ {
+ connect(pOctopus,SIGNAL(droppingGhosts()),pShip,SLOT(dropAllGhosts()));
+ }
+ delete pPosition;
+}
+
+void SeaScene::setupMap(Level level)
+{
+ setupMap(level.getNumberOfGhosts(),level.getNumberOfRocks(),level.getNumberOfOctopuses(),level.getOctopusSpeed());
}
void SeaScene::spreadGhosts(int ghosts)
{
+
+
+ //the octopuses and the ship may have moved from their original positions,
+ //so the list of free slots must be adjusted to exclude their current positions
+
+ QList<QPointF> temporarilyReservedSlots;
+
+ foreach (QGraphicsItem* pItem, movingItems_)
+ {
+ if (pItem == NULL)
+ {
+ // qDebug() << "NULL item in movingItems_";
+ continue;
+ }
+
+ //round x and y down to fit the slot size
+ int x = pItem->x();
+ x = x/40;
+ x = x*40;
+
+ int y = pItem->y();
+ y = y/40;
+ y=y*40;
+
+
+ QPointF position (x,y);
+
+ //remove the tiles (potentially) occupied by the item from free slots and place in temp list if was in the list before
+
+ if (freeTiles_.removeOne(position))
+ temporarilyReservedSlots.append(position);
+
+
+ position.setX(x+40);
+
+ if (freeTiles_.removeOne(position))
+ temporarilyReservedSlots.append(position);
+
+ position.setY(y+40);
+
+ if (freeTiles_.removeOne(position))
+ temporarilyReservedSlots.append(position);
+
+ position.setX(x);
+
+ if (freeTiles_.removeOne(position))
+ temporarilyReservedSlots.append(position);
+
+ }
+
+
+ //spread ghosts in random free slots
+
for (int i=0; i < ghosts; i++)
{
QPointF * pPosition = findRandomFreeSlot();
if (pPosition == NULL)
return;
- QGraphicsPixmapItem * pGhost = addPixmap(QPixmap(":/pix/aave.png"));
+ QPixmap ghostPixmap(":/pix/aave.png");
+ QGraphicsPixmapItem * pGhost = addPixmap(ghostPixmap);
pGhost->setData(0,"ghost");
pGhost->setPos(*pPosition);
delete pPosition;
}
+
+ //return the slots occupied by moving items to free slots
+ freeTiles_.append(temporarilyReservedSlots);
+
+ //clear temp for the next round
+ temporarilyReservedSlots.clear();
}
QPointF* SeaScene::findRandomFreeSlot()
int index = qrand()%freeTiles_.size();
- qDebug() << index << " index";
+// qDebug() << index << " index";
return new QPointF (freeTiles_.takeAt(index));
}
+
+void SeaScene::removeGhost(QGraphicsItem *pGhost)
+{
+ removeItem(pGhost); //remove the item from scene
+ freeTiles_.append(pGhost->scenePos()); //add the item's position to free slots
+ delete pGhost;
+ ghostsLeft_--;
+ if (ghostsLeft_ == 0)
+ {
+ emit allGhostsPicked();
+ // qDebug() << "All ghosts picked!";
+ }
+}
+
+void SeaScene::ghostsDropped(int ghosts)
+{
+ ghostsLeft_ += ghosts;
+
+ spreadGhosts(ghosts);
+}
+
+void SeaScene::pause(bool paused)
+{
+ // qDebug() << "pause pressed " << paused;
+ if (paused_ == paused)
+ return;
+
+ paused_ = paused;
+
+ if (paused == false)
+ {
+ // qDebug() << "starting to move again";
+ emit pauseOff();
+ screenLitKeeper_.keepScreenLit(true);
+ if (pPausetextItem_)
+ pPausetextItem_->hide();
+ }
+
+ else
+ {
+ qDebug("about to stop movement");
+ emit pauseOn();
+ screenLitKeeper_.keepScreenLit(false);
+ if (pPausetextItem_ != NULL)
+ {
+ qDebug() << "about to show the pause text";
+ pPausetextItem_->show();
+ qDebug() << "showing pause text";
+ }
+ else qDebug() << "No pause text available";
+ }
+}
+
+void SeaScene::vibrationActivate(bool on)
+{
+ emit vibrationActivated(on);
+}
+
+void SeaScene::menuClicked()
+{
+ QList<QGraphicsItem *> items = selectedItems();
+
+ //if nothing selected (selection was removed) do nothing
+
+ if (items.isEmpty())
+ return;
+
+ //Tapping the screen unpaused the game, pause it again!
+
+
+
+ //Menu functions
+
+ QGraphicsItem* pItem = items.at(0);
+
+
+ if (pItem == pRestartGameItem_)
+ {
+ qDebug() << "game restart requested";
+ }
+
+ else if (pItem == pRestartLevelItem_)
+ {
+ qDebug() << "Level restart requested";
+
+ }
+
+ else if (pItem == pSettingsItem_)
+ {
+
+ }
+
+ else if (pItem == pAboutItem_)
+ {
+
+ }
+
+
+ //Selection is just used to get notice of being clicked, removed after use
+
+ clearSelection();
+
+}
+
+
+
+void SeaScene::createMenuItems()
+{
+
+ pPausetextItem_ = addSimpleText("Game paused. Tap to continue.");
+ pPausetextItem_->setZValue(1000);
+ pPausetextItem_->setPos(250,50);
+ pPausetextItem_->hide();
+
+ menuItemCount_ = 0;
+
+ pRestartGameItem_ = new QGraphicsSimpleTextItem("Restart game");
+ prepareForMenu(pRestartGameItem_);
+
+ pRestartLevelItem_ = new QGraphicsSimpleTextItem("Restart level");
+ prepareForMenu(pRestartLevelItem_);
+
+ pSettingsItem_ = new QGraphicsSimpleTextItem("Settings");
+ prepareForMenu(pSettingsItem_);
+
+ pAboutItem_ = new QGraphicsSimpleTextItem("About");
+ prepareForMenu(pAboutItem_);
+
+}
+
+void SeaScene::prepareForMenu(QGraphicsItem * pItem)
+{
+
+ //Menu items have pause text item as their parent and are thus added to scene automatically
+ //They are also shown and hidden with it, resulting in the menu being visble when the game is paused
+ //Their coordinates are given relative to the parent.
+
+ pItem->setParentItem(pPausetextItem_);
+ pItem->setZValue(1000);
+ pItem->setFlag(QGraphicsItem::ItemIsSelectable);
+ pItem->setY(150);
+ pItem->setX(menuItemCount_++*150-250);
+ }
+
projects / ghostsoverboard / blobdiff