mark up sprites for uStore loading. critical is for ones needed for proper gameplay, checksum is for ones where the game will desync if they don't match. will add checksumming next...
#include <QDebug>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsPathItem>
#include <QtEndian>
#include "drawmapscene.h"
template <class T> T sqr(const T & x)
{
return x*x;
}
DrawMapScene::DrawMapScene(QObject *parent) :
QGraphicsScene(parent),
m_pen(Qt::yellow),
m_brush(Qt::yellow)
{
setSceneRect(0, 0, 4096, 2048);
QLinearGradient gradient(0, 0, 0, 2048);
gradient.setColorAt(0, QColor(60, 60, 155));
gradient.setColorAt(1, QColor(155, 155, 60));
setBackgroundBrush(QBrush(gradient));
m_pen.setWidth(67);
m_pen.setJoinStyle(Qt::RoundJoin);
m_pen.setCapStyle(Qt::RoundCap);
m_currPath = 0;
}
void DrawMapScene::mouseMoveEvent(QGraphicsSceneMouseEvent * mouseEvent)
{
qDebug() << "move" << mouseEvent->scenePos();
if(m_currPath && (mouseEvent->buttons() & Qt::LeftButton))
{
QPainterPath path = m_currPath->path();
path.lineTo(mouseEvent->scenePos());
paths.first().append(mouseEvent->scenePos().toPoint());
m_currPath->setPath(path);
emit pathChanged();
}
}
void DrawMapScene::mousePressEvent(QGraphicsSceneMouseEvent * mouseEvent)
{
qDebug() << "press" << mouseEvent->scenePos();
m_currPath = addPath(QPainterPath(), m_pen);
QPainterPath path = m_currPath->path();
QPointF p = mouseEvent->scenePos();
p += QPointF(0.01, 0.01);
path.moveTo(p);
path.lineTo(mouseEvent->scenePos());
paths.prepend(QList<QPoint>() << mouseEvent->scenePos().toPoint());
m_currPath->setPath(path);
emit pathChanged();
}
void DrawMapScene::mouseReleaseEvent(QGraphicsSceneMouseEvent * mouseEvent)
{
qDebug() << "release" << mouseEvent->scenePos();
simplifyLast();
m_currPath = 0;
}
void DrawMapScene::undo()
{
if(items().size())
{
removeItem(items().first());
paths.removeFirst();
emit pathChanged();
}
}
QByteArray DrawMapScene::encode()
{
QByteArray b;
foreach(QList<QPoint> points, paths)
{
int cnt = 0;
foreach(QPoint point, points)
{
qint16 px = qToBigEndian((qint16)point.x());
qint16 py = qToBigEndian((qint16)point.y());
quint8 flags = 2;
if(!cnt) flags |= 0x80;
b.append((const char *)&px, 2);
b.append((const char *)&py, 2);
b.append((const char *)&flags, 1);
++cnt;
}
}
return b;
}
void DrawMapScene::decode(QByteArray data)
{
clear();
paths.clear();
QList<QPoint> points;
while(data.size() >= 5)
{
qint16 px = qFromBigEndian(*(qint16 *)data.data());
data.remove(0, 2);
qint16 py = qFromBigEndian(*(qint16 *)data.data());
data.remove(0, 2);
quint8 flags = *(quint8 *)data.data();
data.remove(0, 1);
//last chunk or first point
if((data.size() < 5) || (flags & 0x80))
{
if(points.size())
{
qDebug() << points;
addPath(pointsToPath(points), m_pen);
paths.prepend(points);
points.clear();
}
}
points.append(QPoint(px, py));
}
}
void DrawMapScene::simplifyLast()
{
QList<QPoint> points = paths[0];
QPoint prevPoint = points.first();
int i = 1;
while(i < points.size())
{
if( (i != points.size() - 1)
&& (sqr(prevPoint.x() - points[i].x()) + sqr(prevPoint.y() - points[i].y()) < 1000)
)
points.removeAt(i);
else
{
prevPoint = points[i];
++i;
}
}
paths[0] = points;
// redraw path
{
QGraphicsPathItem * pathItem = static_cast<QGraphicsPathItem *>(items()[0]);
pathItem->setPath(pointsToPath(paths[0]));
}
emit pathChanged();
}
QPainterPath DrawMapScene::pointsToPath(const QList<QPoint> points)
{
QPainterPath path;
if(points.size())
{
QPointF p = points[0] + QPointF(0.01, 0.01);
path.moveTo(p);
foreach(QPoint p, points)
path.lineTo(p);
}
return path;
}