Before modifying source:

ZK's Devving Philosophy (social rules)

"War is anticommunication!"
- Communicate with other devs about your changes/fixes, let them understand the issue. Do not make 'random' changes.
"Do not create work for other people."
- Have responsibility for your changes/commit. Do not leave bugs that require other people to fix.
"Readability & performance are equally important."
- Optimize code but not to the point of unreadability. Remember the rules of optimization:
  - Don't.
  - Don't (yet).
  - Profile before doing it.
"If it ain't broke, don't fix it."
- Don't code fixes that nobody wants to problems that don't exist.

Zero-K contains the game proper
- units folder contains unit definition files
  - you can read wiki about game development for spring engine
Zero-K-Infrastructure
- Zero-K.info: Website sources
- ZkLobbyServer: Lobby server (for MP)
- ZkData: Website/server database structure
Chobby contains the lobby client
Zero-K-Artwork contains sources for 2D art, 3D art and sounds
SpringRTS-tools contains various dev tools
- Upspring - required to edit the .3do and .s3o model files used in the game
- MapIconBuilder - unit map icon sources are here
Zero-K-Missions contains source files for official ZK missions

Get a GitHub account and download Github for desktop or
Locate repository you want to edit and click "clone in desktop" button on website
After you finish modifying sources click *Pull request* in Github for windows and submit your changes for review

Locate data folder of your game - in Zero-K lobby settings click open game data folder
Create a folder games/zk.sdd in game data folder
Clone to desktop Zero-K game and save it to zk.sdd
To test source modifications set your game in lobby client settings (under Development tab) to Zero-K Dev and start a skirmish game

To run a project right click it, choose "set as startup project" and hit F5 to run using debugger.
You can enable multiple startup projects to test entire infrastructure locally (game servers, lobby etc). Enable asp.net, springie and ZeroKLobby projects to test it all together. Setup
To run asp.net:
- It's required that you install MS SQL Express on your local PC. Get one from here. The file you will need is called SQLEXPR_x64_ENU or SQLEXPR_x86_ENU. Make sure you install version that matches your version of Windows (i.e. x86 vs x64). During the installation leave all the parameters default except that I changed server name to SQLEXPRESS in one of the first steps of wizard.
- Right click asp.net -> properties -> web -> check "Specific Page" and leave it blank. Otherwise you get errors when trying to host locally.
- Make sure SQL Server is running (check the Sql Server Configuration Manager in the Start Menu). If you can't connect, edit the data source for ModeType.Local in GlobalConst.cs to say something like:
  Data Source=<hostname (usually your computer name)>\SQLEXPRESS