show a screen when hover an area

[cl0ud]

Hello everyone ! I need help:
I have a screen showing a "fear" bar, it is displayed on the far right of the screen. However, it can be cumbersome. What I would like to do is for the screen to show when the mouse is to the right of the game screen!

And also, I would like the bar to appear every time it is updated, then disappear 3 seconds later, all with "dissolve" in transition. Here is the bar code:

Code: Select all

#health bars     

default fear = 0

screen fear_bar:
    zorder 1000
    vbox:
        xalign 1.0 yalign 0.0
        bar value AnimatedValue(fear, range=100.0):
            xalign 1.0 yalign 0.0
            xmaximum 30
            ymaximum 400
            left_bar Frame("gui/bar/fear_empty.png")
            right_bar Frame("gui/bar/fear_full.png")
            thumb None
            bar_vertical True

thanks