![](https://ai.vis-foundation.com/wp-content/uploads/2020/11/VisAI-Core-Files-1024x151.png)
VisAI provides you all the functionality you need within a few core files. They are structured in a way that makes it easy to modify the functionality you need.
There are a few common files that you may need to change. Those files are: VisAI Controller, VisAI Character, and VisAI Health and Damage. You’ll also find a full list of core files on the Framework Class Hierarchy Page.
Each VisAI Subsystem comes with a child of these files core files, ready for modification; so if you’ve created your own subsystem, you’ll find usable files there.
![Next Steps](https://ai.vis-foundation.com/wp-content/uploads/2020/11/image-1024x379.png)
Lets move on to VisAI Settings