In this video I’m showing how to add a virtual joystick in your Unity by importing this package called MyJoystick.
See how to use this package in this video and have fun.
Here is the link to download the package, it’s from my Google Drive: https://drive.google.com/open?id=1KPUvXeJQw_XATMTY0QmF_4JE0-05sHQy
That is a Unity package. Drag and drop it to your Unity project to import MyJoystick. Find a sample test scene to see how it works. Everything is explained in above video.