[TUTORIAL] How to Write Native Plugins for Unity

http://www.alanzucconi.com/2015/10/11/how-to-write-native-plugins-for-unity/

Unity has the ability to import pieces of code written (and compiled) in other languages; they are called Native Plugins, and this tutorial will teach you how to build them.

• Step 1: Creating a C++ project

• Step 2: Writing the library

• Step 3: Compiling

• Step 4: Importing in Unity

• Step 5: Using in Unity

• Conclusion

Source codes:

• Visual Studio 2015 C++ project (DLL source code)

• Unity package (including the DLL)