How do screens work?

[Husky]

Hello there. I'd like to create 2 things:

1. Something like inventory, with clickable elements. And after click they're supposed to show it's description.

2. Fairy-helper. Somewhere on the screen there should be a button, which summons a fairy helper, who helps the player, providing him with some useful informations. That fairy should have some data about the player... Like... Time spent in game? Gathered pieces of something? So it should be a little interactive.

I read somewhere, I should call a screen, but I really don't get it. I'm after basics, so I know how to create a simple, multi-branching story. And I made a simple imagemap with choices, where a player should go. But I don't know anything more complex about screens. English isn't my native tongue, so it makes some tutorials about implementing python scripts hard to understand. I just want to make my game interactive, dynamic.

[Alera]

Hello!

Have you tried looking in the Cookbook section of the forums? There are some really useful things there, specifically about inventories!

Like these for example:
http://lemmasoft.renai.us/forums/viewto ... 51&t=23071

http://lemmasoft.renai.us/forums/viewto ... 51&t=25393

http://lemmasoft.renai.us/forums/viewto ... 51&t=25579

These should help you get a start working with screens.
The documentations has a pretty in depth explanation of screens as well: http://www.renpy.org/doc/html/screens.html

These aren't instant solutions of course, but I hope it helps!