Full server rewite

Rewrite everything with kotlin (multiplatform) and coroutines.
Unit test the crap of the new server
Requires: SlimeVR/SolarXR-Protocol#217

Server features to implement

Config

• Basic module to interface with config
• Config profiles (user and settings)
• Profile switching
• Auto save

Device

• Basic module / Holding the basic state
• Calculate tps based on updates

Tracker

• Basic module / Holding the basic state
• Need to define how the to categorize trackers
• Position data is set by feeder and driver
  • We have the source, but no stuff like are they trackers computed for steamvr or vmc
• User can:
  • Assign a body part
  • Set the custom name of a tracker
  • Enable mag

Firmware Tool

• Firmware tool can flash trackers through serial and ota
• Unit testing

Serial

• Scan for new ports
• open connection for serial
• open connection for flashing
• support multiple connections at the same time
• Platform support:
  • Windows
  • Linux
  • MacOS
  • Android
• Unit testing

Height Calibration

• Go through all the steps of the calibration
• Can give the user height
• Can give the user height to scaled proportions
• Unit testing
  • Basic testing without actual data

HID (usb dongles)

• Can detect dongles
• Create device and trackers
• Handles all the HID packets
• Calculate packet loss
• Platform support:
  • Windows
  • Linux
  • MacOS
  • Android

UDP Trackers

• Can parse all UDP packets
• Create device and trackers
• Handles reconnection / timeouts
• Handle out of order packets
• Calculate ping
• Calculate packet loss

Wi-Fi Provisioning

• Can connect a tracker to the wifi
• Handle all error cases
• Handle retries
• Handle detection of turned off trackers
• Handle detection of unplugged trackers
• Unit testing

Skeleton

• Need to figure out a data structure

Solarxr

• Can handle solarxr messages
• WS support
• File socket / named pipes support
• Platform Support:
  • Windows
  • Linux
  • MacOS
• Can initialize datafeeds
• Can send RPC packets and listen to them
• Unit testing

VRChat Config Warnings

• Send vrc config warning status to solarxr
• Can verify vrc data against recommended values
• Handles reading config from:
  • Windows
  • Linux
  • MacOS

Tracking Checklist

• Can mute steps and save to config
• Handle all these steps
  • Network profile detection
  • Steamvr disconnected
  • Tracker error
  • Rest calibration
  • Full Reset
  • Mounting calibration
  • Feet mounting
  • Unassigned HMD
  • Stay Aligned
  • VRC settings

Scaled Proportions

• Can calculate body proportions based on user height

OSC Router

• Nuked

VRC OSC

• Send tracking data to VRC
• Flightlist to enable "Allow Sending Head and Wrist VR Tracking OSC Data"

VMC

• Send data to vmc apps
• Handle VRM models
• Anchor hip
• Tracking mirroring

BVH

• Can record data
• Can save to a file
• Can create a file without prompt if folder is defined

Server Guards

Handle the following guards:

• Can do mounting
• Can do yaw reset
• Can do height calibration
• Reset can do mounting after 2min since last full reset

Autobone

• TBD

Manual Proportions

• User can set body proportion values
• Skeleton updates accordingly
• Body proportions are saved to user config

Taps

• Taps are detected from trackers
• Taps trigger the corresponding resets
• Taps amounts / delay / enabled can be configured
• Unit testing

Stay Aligned

• can record rest poses
• Can correct skeleton based on rest poses
• Adjust trackers and Hide adjustments toggles

Keybinds

• Can read key inputs:
  • Windows
  • Linux
  • MacOS
• Trigger the corresponding resets
• Handle GUI assignment

Driver

• Basic reporting of trackers to the driver
• Platform Support:
  • Windows
  • Linux
  • MacOS

Feeder

• Collect tracker data and create devices / trackers to the server
• Platform Support:
  • Windows
  • Linux
  • MacOS

SteamVR

• Enabled trackers

Leg Tweaks

• TBD

Skating correction

• TBD

Filtering

• Smoothing
• Prediction

Skeleton Ratios

• Rework to have less of them

Cleanup

• Delete Skeleton toggles from GUI
• Delete OSC Router from GUI

Small touchups

• Make server only assign one body part to one tracker only
• Make sure java version check works on electon. (java 17 -> 25)
• Bring back option to have a local config folder