Monkey patching (changing code at runtime) in Vintage Story is available through Harmony. With Harmony you can change methods, constructors and properties. Documentation on harmony is available here..
To use Harmony in you Vintage Story mod you first have to reference the 0harmony.dll in the Vintage Story lib directory (VintageStory\Lib\0Harmony.dll).
Then you have to create a Harmony-instance by calling the constructor with you a unique identifier, preferrably you modid (this let's harmoy differentiate between different patches and allows other people to patch your patches).
var harmony = new Harmony("MyModId");
Now you are all set to patch everything inside the game like described in the documentation.
- Just because you can use monkey patching, does not mean you should. Patches are often fragile and break easily (especially if you access internal private methods). So if you can use normal means of modding you probably should.
- You can't use harmony to patch fields (because they are not called), so in order to change field access you have to patch all calls to this field with patches.
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