Where to start developing in OpenTTD?

[Progman]

Hi

I'm interested unterstanding the code of OpenTTD and maybe I want to write a patch for it. But I don't know where to "start" in the OpenTTD-code to understand what where when happends and where what act together. I mean sth. like "What classes exists?" "How act they together?" "What is the Idea of XYZ?". Or more specific: Where can I find documentation about the OpenTTD-code? I search for an overview of the OpenTTD-code like "How to get a OpenTTD-Developer" or "Overview of classes/enums/strucst/whatever".

Yes, I have (some) experiences in c.
No, I haven't experiences in a c-project.

[viperkesvp]

you can find the docs about the source code on this page

http://docs.openttd.org/

generally it is the source code with some extra comments on it and with a better overview of the structure of the code

grtz
Viperkesvp

[mart3p]

There is also some development information here.

[MeusH]

You can also browse the source code and take a look at comments. The most important functions are usually well explained with some lines from the author