Add hedgehog effect heArtillery, allows to set per-hedgehog artillery mode Allowed effect values: 0 = not active 1 = permanently active 2 = termporarily active (sniper rifle)

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}