Animated scrolling in text window? Animated window resizing?

[BunnyInfernal]

Hi, all! I've got a little thing I've been playing with and I was hoping for a little help.

Inspired by some text games I've seen, I was curious if I could customize Ren'Py's UI to have a scrolling NVL window with stylized text boxes. I have something that looks like this so far:

Each new block of text appears below the last, and there's a scrollbar on the right so the player can scroll back once there's more than a screen's worth of text.

To make sure that the text window will automatically scroll to the bottom when new text is added that would otherwise be off the screen, I have this line of code in the window:

Code: Select all

yadjustment ui.adjustment (value=99999, range=99999)

My problem with it is that it doesn't quite feel right to me; because of how it all happens instantly, it can be a bit jarring and you almost don't notice the new text has appeared.

My question is: Is there a way to make the scrolling animated, so that it doesn't happen instantaneously? (I'm also curious if I can have a little animation for the blocks of text as they appear, as maybe that would make it a bit easier for the player to follow.)


Second question:
Related to the above; I've also been playing with resizing the text window so that images can occasionally be displayed at the top of the screen, like so:

I've found I can do this easily enough by defining...

Code: Select all

ysize text_window_height 

And then I can change text_window_height to resize the window.

To make that animated, I assume I'd need some kind of function to change the value over a period of time? I'm not sure the best way to do that in RenPy.