BetterJoy/README.md

# BetterJoyForCemu v2.0c
Allows the Nintendo Switch Pro Controller to be used with the [Cemu Emulator](http://cemu.info/) and [Cemuhook](https://sshnuke.net/cemuhook/).

# Changelog
### v2
* Added Joycon support
   * Exposes two CemuHook controllers - both have all the buttons, selecting one or the other will just pick whether to use the right or left Joycon for the motion controls
   * Make sure both controllers are connected beforehand
* Further gyro fixes
* Code cleanup

### v1.51
* Added USB support
* Eliminated gyro shaking
* Improved bluetooth support
    * It's no longer necessary to completely remove and then reconnect the pro controller from your bluetooth devices when you turn it off
    * Pro controller reconnects to computer normally now
* Added 32-bit release (untested)
* Cleaned up code
* __v1.51__
   * More gyro fixes (runs at max UDP now - as precise as one can get)
   * Especially noticeable in USB mode
### v1
* Initial release

# How to use
1. Make sure CEMU has at least one input profile set up already (so that CemuHook can feed data into it)
    1. If you don't, go into _Input settings_ (under _Options_) on Cemu and set the first controller to be a Wii U Gamepad, you can leave the rest of the settings blank (or set the device to your keyboard)
1. Connect pro controller via bluetooth/usb
1. Run BetterJoyForCemu.exe
    1. If the controller recongised, the first LED should light up.
    1. If not, see the __Problems__ section.
1. Start Cemu and ensure CemuHook has the controller selected.
    1. If using Joycons, the program will show two controllers - each will give all buttons, but choosing one over the other just chooses preference for which hand to use for gyro controls.
1. Enable "Also use for buttons/axes"
1. Please press enter in the console box once you're done with the program - closing it by clicking "x" does not stop the services correctly.

# Problems
If the controller does not work after restarting the exe too many times - shut down the exe, disconnect your pro controller and connect it again.

If you get weird lag/stuttering - restart your computer; or try running the program multiple times, closing it properly (by pressing enter) each time.

If something isn't working but it looks like it should be - try running the program as administrator.

__Note that for Joycons to work properly, you need a decent Bluetooth adapter that is comfortable with handling 3/4 connections at a time__

## No Joycons detected
If using Bluetooth - see the "How to properly disconnect the controller" section and follow the steps listed there. Then, reconnect the controller.

If using USB - try unplugging the controller and then plugging it back in, making sure to let Windows set it up before launching the program.

## Getting stuck at "Using USB" or "Using factory.."
Close the program and then start it again. If it doesn't work, see the "No joycons detected" section and try that.

## CemuHook not recognising the controller
Make sure that CemuHook settings are at their default state, which are -

```
serverIP = 127.0.0.1
serverPort = 26761
```

Feel free to open a new issue if you have any comments or questions.

# Connecting and Disconnecting the Controller
## Bluetooth Mode
Hold down the small button on the top of the controller for 5 seconds - this puts the controller into broadcasting mode.

Search for it in your bluetooth settings and pair normally.

To disconnect the controller - press down the button once. To reconnect - press any button on your controller.

## USB Mode
Plug the controller into your computer.

## How to properly disconnect the controller
### Windows 10
1. Go into "Bluetooth and other devices settings"
1. Under the first category "Mouse, keyboard, & pen", there should be the pro controller.
1. Click on it and a "Remove" button will be revealed.
1. Press the "Remove" button

# Acknowledgements
A massive thanks goes out to [rajkosto](https://github.com/rajkosto/) for putting up with 17 emails and replying very quickly to my silly queries. The UDP server is also mostly taken from his [ScpToolkit](https://github.com/rajkosto/ScpToolkit) repo.

Also I am very grateful to [mfosse](https://github.com/mfosse/JoyCon-Driver) for pointing me in the right direction and to [Looking-Glass](https://github.com/Looking-Glass/JoyconLib) without whom I would not be able to figure anything out. (being honest here - the joycon code is his)

A last thanks goes out to [dekuNukem](https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering) for his documentation, especially on the SPI calibration data and the IMU sensor notes!