portal: combating the space-detection issue. what needs to be tweaked next is how far away objects are spawned. it should either be a trial&error adjustment or depend on the object's moving direction and the portal's angle in order to avoid issues with box collisions. if the spawn distance to the portal is just a fixed value (as it was before this patch) or a constant factor (it is now) it can be too big for "nice" portal angles (in tight gaps with still enough space, but -> denied) and too small for bad angles (box collision esp. on big objects like barrels -> denied)

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#include <QApplication>

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#include "mainform.h"

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int main(int argc, char *argv[])

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{

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    QApplication app(argc, argv);

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    MyWindow *mainWin = new MyWindow;

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    mainWin->show();

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    return app.exec();

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}