#include "board.h"
#include <QGraphicsItem>
#include <QGraphicsScene>
#include <QDebug>
#include <QTextDocument>
#include <QFontMetrics>
#include <QPropertyAnimation>
const QColor fg = Qt::white;
const QColor bg = Qt::black;
Board::Board(QWidget *parent) :
QGraphicsView(parent)
{
scene = new QGraphicsScene(QRect(0, 0, 640, 360), this);
scene->setBackgroundBrush(QBrush(bg));
ball = scene->addRect(-6, -6, 12, 12, QPen(Qt::SolidLine), QBrush(fg));
ball->setPos(Width/2-6, Height/2-6);
topWall = scene->addRect(0, -1, Width, 12, QPen(Qt::SolidLine), QBrush(fg));
bottomWall = scene->addRect(0, Height-12, Width, 12, QPen(Qt::SolidLine), QBrush(fg));
leftPaddle = scene->addRect(0, 12, 12, Paddle, QPen(Qt::SolidLine), QBrush(fg));
rightPaddle = scene->addRect(Width-12, 12, 12, Paddle, QPen(Qt::SolidLine), QBrush(fg));
QPen p;
p.setWidth(2);
p.setStyle(Qt::DotLine);
p.setBrush(QBrush(fg));
scene->addLine(Width/2, 0, Width/2, Height, p);
QFont f;
f.setStyleHint(QFont::OldEnglish);
f.setPixelSize(50);
f.setBold(true);
leftScore = scene->addText(QString("0"), f);
leftScore->setDefaultTextColor(fg);
rightScore = scene->addText(QString("0"), f);
rightScore->setDefaultTextColor(fg);
setScore(0, 0);
f.setPixelSize(25);
status = scene->addText(QString(), f);
status->setDefaultTextColor(fg);
ball->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
leftPaddle->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
rightPaddle->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
icon.load(QString(":/icons/connect.png"));
icon = icon.scaled(100, 100, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
qDebug() << "icon" << icon.isNull();
connectIcon = scene->addPixmap(icon);
connectIcon->setPos(440,200);
connectIcon->setAcceptTouchEvents(true);
connectIcon->setTransformOriginPoint(50,50);
connectIcon->setTransformationMode(Qt::SmoothTransformation);
connectAnimation = new QPropertyAnimation(this, "connectRotation");
connectAnimation->setDuration(1000);
connectAnimation->setLoopCount(-1);
connectAnimation->setStartValue(0);
connectAnimation->setEndValue(360);
setCacheMode(QGraphicsView::CacheBackground);
setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
}
void Board::setBall(int x, int y)
{
ball->setPos(x, y);
checkBall(x, y);
}
void Board::setLeftPaddle(int y)
{
leftPaddle->setPos(0, y);
}
void Board::setRightPaddle(int y)
{
rightPaddle->setPos(0, y);
}
void Board::sceneChanged(const QList<QRectF> ®ion)
{
Q_UNUSED(region);
QList<QGraphicsItem *>items = scene->collidingItems(ball);
while(!items.empty()) {
QGraphicsItem *i = items.takeFirst();
if(i == topWall)
emit ballCollision(Top);
if(i == bottomWall)
emit ballCollision(Bottom);
if(i == leftPaddle)
emit ballCollision(Left);
if(i == rightPaddle)
emit ballCollision(Right);
}
}
void Board::checkBall(int x, int y)
{
int ly = leftPaddle->y();
int ry = rightPaddle->y();
if (x > 646)
emit scored(Right);
else if (x < -6)
emit scored(Left);
if (y < 18)
emit ballCollision(Top);
else if (y > 360-18)
emit ballCollision(Bottom);
if ((x < 18) &&
(y > ly-6) &&
(y < ly+Paddle+6))
emit ballCollision(Left);
if ((x > 640-18) &&
(y > ry-6) &&
(y < ry+Paddle+6))
emit ballCollision(Right);
}
void Board::setScore(int l, int r)
{
QString left = QString("%1").arg(l);
QString right = QString("%1").arg(r);
leftScore->document()->setPlainText(left);
rightScore->document()->setPlainText(right);
QFontMetrics fm(leftScore->font());
leftScore->setPos(Width/4 - fm.width(left)/2, 50);
rightScore->setPos(3*Width/4 - fm.width(right)/2, 50);
}
void Board::setStatus(QString text, int opacity_start, int opacity_end)
{
status->document()->setPlainText(text);
status->setPos(24, Height-25-25);
QPropertyAnimation *a = new QPropertyAnimation(status, "opacity");
a->setDuration(2000);
a->setStartValue(opacity_start/100.0);
a->setEndValue(opacity_end/100.0);
a->start(QAbstractAnimation::DeleteWhenStopped);
}
void Board::setConnectRotation(int rot)
{
connectIcon->setRotation(rot);
}
void Board::setConnectOpacity(qreal op)
{
connectIcon->setOpacity(op);
}
void Board::animateConnect(bool start)
{
if (start) {
connectAnimation->start();
}
else {
connectAnimation->stop();
QPropertyAnimation *a = new QPropertyAnimation(this, "connectRotation");
a->setDuration(connectAnimation->currentLoopTime()/2);
a->setStartValue(connectAnimation->currentValue().toInt( ));
a->setEndValue(0);
a->start(QAbstractAnimation::DeleteWhenStopped);
}
}
void Board::fadeConnect(bool out)
{
qreal start = 100.0;
qreal end = 0.0;
if(!out) {
start = 0.0;
end = 100.0;
}
QPropertyAnimation *a = new QPropertyAnimation(this, "connectOpacity");
a->setDuration(2000);
a->setStartValue(start);
a->setEndValue(end);
a->start(QAbstractAnimation::DeleteWhenStopped);
}