Michal Štrba

Hey, thanks for this! This is definitely a step in the right direction, even if not polished. Sorry for not responding earlier. If you wish to finish this into something...

> Actually it was a slice of Envs originally, but it was a mess to manage. For example, how do you address a grid ? Good point, but how often...

What about something like this? ```go var left, middle, right gui.Env hsplit := layout.NewHSplit(env, &left, &middle, &right) ``` And this ```go var ( topLeft, top, topRight gui.Env left, middle, right...

Great idea with the `Layout` interface! I am quite busy right now (and gonna be tomorrow as well), but a few quick thoughts: 1. It would make sense to make...

Hm, I'm not sure I like the `Items()` method, it seems like a hack. I'll have to think more about this. If you come up with new ideas, please share!...

Yeah, thanks for reporting! I'll take a look at how I can fix this. If you have a solution already, please tell me! :D

Is this still happening? When exactly does it happen?

This is reasonable, however, two comments: 1. `RunErr` would be a better name and more consistent with the rest of the functions. 2. Avoid code duplication. Implement `RunErr` using `Run`...

@carbontwelve Thanks for the suggestion! However, this raises questions: what kind of tilemap? A map generated by the [Tiled](http://www.mapeditor.org/) editor? Or some own format? Or something else?

@akiross Good point. I added the fourth advanced tutorial topic, which should cover what you're talking about. Will do these tutorials when I have time (I'm very busy right now).