bee:
* make be correct its course only 62.5 times per second (instead of 1000)
* cache values (e.g. that one for speed)
#include <QApplication>
#include "mainform.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWindow *mainWin = new MyWindow;
mainWin->show();
return app.exec();
}