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explosion.cpp
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explosion.cpp
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#include "explosion.h"
Explosion::Explosion(int size, QPoint position):
_currentSize(1), _maxSize(size), _position(position) {
}
Explosion::~Explosion() {
}
void Explosion::draw(QPainter &painter) {
if (_currentSize < _maxSize)
++_currentSize;
QPainterPath path;
path.addPolygon(this->getPolygon());
painter.drawPath(path);
}
QPolygon Explosion::getPolygon(){
QPolygon explosion;
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(1, -8)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(3, -5)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(9, -3)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(6, 0)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(4, -2)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(3, 7)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(0, 6)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(-3, 4)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(-8, 0)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(-6, -4)));
explosion.append(getAbsolutePoint(QPoint(0, 0)));
explosion.append(getAbsolutePoint(QPoint(-1, -2)));
return explosion;
}
QPoint Explosion::getAbsolutePoint(QPoint relativePoint) const {
return QPoint(_position.x()+(relativePoint.x()*_currentSize), _position.y()+(relativePoint.y()*_currentSize));
}
bool Explosion::toRemove() const {
return _currentSize == _maxSize;
}