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#include "sceneholder.h"
#include "constants.h"
#include "gameentity.h"
#include "block.h"
#include "actor.h"
#include "bonuspoint.h"
#include "point.h"
#include "util.h"
SceneHolder::SceneHolder(QObject *parent)
: QGraphicsScene(parent), m_color(Color::none), m_pointsLeft(0)
{
setSceneRect(0, 0, Constants::map_size_pixel.width, Constants::map_size_pixel.height);
setBackgroundBrush(Qt::black);
visualMap.resize(Constants::map_size.width);
for (int i = 0; i < visualMap.size(); ++i)
visualMap[i].resize(Constants::map_size.height);
}
void SceneHolder::updateMap(const Transmission::map_t& map)
{
/* remove items that got marked for removal from scene */
QMutableListIterator<GameEntity *> i(m_oldItems);
while(i.hasNext())
{
i.next();
GameEntity *item = i.value();
removeItem(item);
i.remove();
delete item;
}
/* process update */
for (unsigned int x = 0; x < Constants::map_size.width; ++x)
{
for (unsigned int y = 0; y < Constants::map_size.height; ++y)
{
const Transmission::field_t &cur = map[x][y];
if (cur == Transmission::none)
continue;
Color::Color color = static_cast<Color::Color>(cur & Transmission::color_mask);
GameEntity* item = NULL;
if (cur & Transmission::empty)
{
GameEntity *oldItem = visualMap[x][y];
/* special handling for purging field
* remove elements (in case it's not an actor)
*/
if (oldItem != NULL && dynamic_cast<Actor *>(oldItem) == NULL)
{
visualMap[x][y] = NULL;
Actor *actor = NULL;
foreach (Actor *tmp, m_actors)
{
if (cur & tmp->color())
{
actor = tmp;
break;
}
}
/* an item must be removed by an actor */
if (actor == NULL)
Q_ASSERT(false);
oldItem->onDie(actor);
/* register item for removal in next update */
m_oldItems.append(oldItem);
}
}
if (cur == Transmission::none)
{
// no update
}
else if (cur & Transmission::block)
{
unsigned int neighbours = Block::None;
// check left side
if (x > 0 && map[x - 1][y] & Transmission::block)
neighbours |= Block::Left;
// check right side
if (x < Constants::map_size.width && map[x + 1][y] & Transmission::block)
neighbours |= Block::Right;
// check upside
if (y > 0 && map[x][y - 1] & Transmission::block)
neighbours |= Block::Up;
// check down side
if (y < Constants::map_size.height && map[x][y + 1] & Transmission::block)
neighbours |= Block::Down;
item = new Block(color, neighbours);
}
else if (cur & Transmission::bonuspoint)
item = new BonusPoint();
else if (cur & Transmission::point)
{
item = new Point();
connect(item, SIGNAL(destroyed()), this, SLOT(decrementPoints()));
++m_pointsLeft;
}
else if (cur & Transmission::pacman)
{
Actor *actor = m_actors.value(color, NULL);
if (actor == NULL)
{
actor = new Actor(color, (color == m_color));
m_actors[color] = actor;
addItem(actor);
actor->setPos(mapPositionToCoord(x, y));
}
else
{
Actor::Movement direction =
Util::transmissionMovementToActor(cur & Transmission::direction_mask);
actor->move(direction);
qDebug() << "actor " << color << " move " << direction << "to " << x << y;
}
}
else if (cur & Transmission::empty)
{
/* already handled */
}
else
{
qWarning() << "Unknown data value at" << cur;
Q_ASSERT(false);
}
/* add new created item to scene
* remove old item on that location if there's one
*/
if (item != NULL)
{
addItem(item);
item->setPos(mapPositionToCoord(x, y));
GameEntity *oldItem = visualMap[x][y];
visualMap[x][y] = item;
if (oldItem != NULL)
{
removeItem(item);
delete oldItem;
}
}
}
}
}
void SceneHolder::setColor(Color::Color color)
{
m_color = color;
}
Color::Color SceneHolder::color()
{
return m_color;
}
unsigned int SceneHolder::pointsLeft()
{
return m_pointsLeft;
}
void SceneHolder::decrementPoints()
{
--m_pointsLeft;
}
QPoint SceneHolder::mapPositionToCoord(unsigned int x, unsigned int y)
{
return QPoint(x * Constants::field_size.width, y * Constants::field_size.height);
}
QPoint SceneHolder::mapPositionToCoord(QPoint point)
{
return mapPositionToCoord(point.x(), point.y());
}
QPoint SceneHolder::CoordToMapPosition(unsigned int x, unsigned int y)
{
return QPoint(x / Constants::field_size.width, y / Constants::field_size.height);
}
QPoint SceneHolder::CoordToMapPosition(QPoint point)
{
return CoordToMapPosition(point.x(), point.y());
}
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