Difference between revisions of "Modding Tutorials/Writing custom code"

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In addition to creating data for the game to use, you can also write code. You could probably write in any .NET language, but I’ve only tested C#.
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''This tutorial requires you to have [[Modding Tutorials/Setting up a solution|set up a solution]].''<br/><br/>
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In addition to creating data for the game to use, you can also write code. You could probably write in any .NET language, but I’ve only tested C#.<br/><br/>
  
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# Create a new class library project in your [[Modding Tutorials/Recommended software#IDE.27s|IDE of choice]];
 
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## Go to File -> New -> Solution;
 
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## Go to C# or .NET -> Library or Class Library (NOT portable);
 
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## Enter a project name (solution name automatically updated);
 
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## Choose a location, preferably:<br/><pre>(RimWorldInstallFolder)/Mods/(YourModName)/Source</pre>
 
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## Untick "Create a directory for solution"/"Create a project within the solution directory",
 
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# In your project, add references to Assembly-CSharp.dll and UnityEngine.dll:
 
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## Copy these files:<br/><pre>(RimWorldInstallFolder)/RimWorld_Data/Managed/Assembly-CSharp.dll&#10;(RimWorldInstallFolder)/RimWorld_Data/Managed/UnityEngine.dll</pre>
 
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## Place them in your project:<br/><pre>(RimWorldInstallFolder)/Mods/(YourModName)/Source/(YourSolutionName)/Source-DLLs</pre>
 
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## In your IDE project file browser, right-click the "References" folder and "Add reference";
 
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## Choose the ".NET Assembly Browser" tab and "Browse", go to the folder you placed the copied DLLs;
 
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## Choose both DLLs and click OK,
 
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# In your project properties, change the target framework to .NET 3.5:
 
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## In your IDE project file browser, right-click Solution (YourSolutionName);
 
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## Choose Properties;
 
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## Go to the "Compiling" tab, "Output", "Target framework", "Change" and choose ".NET Framework 3.5",
 
 
# Create a new class in a new code file:
 
# Create a new class in a new code file:
 
## In your IDE project file browser, right-click (YourProjectName), Add -> New item -> C# or .NET -> Class;
 
## In your IDE project file browser, right-click (YourProjectName), Add -> New item -> C# or .NET -> Class;

Revision as of 10:46, 22 August 2015

< Modding Tutorials

This tutorial requires you to have set up a solution.

In addition to creating data for the game to use, you can also write code. You could probably write in any .NET language, but I’ve only tested C#.

  1. Create a new class in a new code file:
    1. In your IDE project file browser, right-click (YourProjectName), Add -> New item -> C# or .NET -> Class;
    2. Rename the class to what you want the class name to be, e.g DamageWorker_FlameExtension,
  2. You’ll want to add these namespace to the top of each of your .cs source files as necessary;
    using UnityEngine;  	//For all Unity functionality, rendering, resource management
using AI;		//RimWorld AI
using Sound;	        //RimWorld sound subsystem
using UI;		//RimWorld GUI
  3. Write your class;
    1. Decompile source code to take a look at the game's existing code;
    2. If you still get stuck on anything, any modding questions can be asked on the subforum,
  4. Compile your class into a .dll;
    1. Make sure your project's output type is "class library";
    2. Note: by default, Visual Studio will compile all the references of the project as well, so you’ll get a copy of UnityEngine.dll and Assembly-CSharp.dll and some others. You don’t need these. Just take YourModName.dll,
  5. Place the .dll in the YourModName/Assemblies folder of your mod;
  6. Reference the classes in your .dll from the xml data in the YourModName/Defs folder;
    1. Example: Create a new ThingDef with a <thingClass> that points to a class in your .dll,
  7. The game should load your class now;
  8. Optional: Release your source code.
    1. Most mods include a YourModName/Source folder with the full C# project in it for other modders to check out;
    2. Some mods include a Dropbox download link to their source code in the mod's topic. This is also a possibility.

See also

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