Ren'Py Edge scroll stopping

[mickydoo]

Hey all, I have followed a youtube tut on making an edge scroll with a mouse area, all works as intended, here is the code I am using.

screen edgescroll_screen():
    mousearea:
        area(0,0,100,1080)
        hovered SetVariable("xp", xp+5), Return()


    mousearea:
        area(1820,0,1920,1080)
        hovered SetVariable("xp", xp-5), Return()


    mousearea:
        area(100,0,1820,100)
        hovered SetVariable("yp", yp+5), Return()


    mousearea:
        area(100,980,1820,1080)
        hovered SetVariable("yp", yp-5), Return()

Question is, how can I stop the image that is scrolling stop at the edge of the screen instead of disappearing into an abyss?

 

[anne O'nymous]

Question is, how can I stop the image that is scrolling stop at the edge of the screen instead of disappearing into an abyss?

By conditioning your actions. Something like :

       hovered If( yp > LIMIT_VALUE - 5, SetVariable("yp", yp-5), NullAction() ), Return()