Edges of area not cleared when area rumbling

[pmer]

Issue

Notice the top and left sides of the screen. They should be black (the area is not currently there). Instead, whatever was drawn in the previous frame remains, leaving a graphical artifact.

[seisatsu]

Yeah, I noticed this, but overlooked it when the window was the size of each area because all four edges would have been black while rumbling. The effect of graphics cloning off the side of the screen could actually trick my eyes to think there was something over there to render. Anyway, I think we can just fix this and then make areas where rumbles happen big enough to handle it without showing letterbox.

[seisatsu]

I am having a hell of a time just trying to paint black on the screen between frames.

[seisatsu]

One last detail -- we need to be able to cover up tall entities spilling over the edge of the area before I can mark this fixed. This is particularly troublesome when the character is standing in a lit area; the part of them sticking over the bounds has a different coloration and looks obnoxious.

[pmer]

I am thinking of adding a clip to the src and dest rectangles on every overlay draw & clipping to the area boundaries. What do you think @seisatsu?

[seisatsu]

A clip is probably what's going to have to happen.