Skip to content

Instantly share code, notes, and snippets.

@JudahSan
Created September 14, 2023 22:36
Show Gist options
  • Save JudahSan/f53680b3a8aa6960f9b83f3b775456b1 to your computer and use it in GitHub Desktop.
Save JudahSan/f53680b3a8aa6960f9b83f3b775456b1 to your computer and use it in GitHub Desktop.
Joy con sim

Here's a simple Rust program that simulates a Joy-Con and controls a Nintendo Switch over Bluetooth.

// Import necessary libraries and Bluetooth stack
extern crate bluetooth;
use bluetooth::{Server, Device, Characteristic};

// Define the simulated Joy-Con struct and related functions (as previously outlined)

// Initialize Bluetooth stack
initialize_bluetooth();

// Create a Bluetooth server
let server = Server::new();

// Start advertising the Joy-Con Emulator service
server.start_advertising("Joy-Con Emulator");

// Initialize a simulated Joy-Con
let mut joycon = initialize_joycon();

// Listen for incoming connections
while let Some(device) = server.accept() {
    println!("Joy-Con connected: {}", device.get_name());

    // Get the first characteristic of the connected device
    if let Some(characteristic) = device.get_characteristics().first() {
        // Main loop for interacting with the Joy-Con emulator
        loop {
            // Read from and write to the characteristic
            let read_data = characteristic.read();

            // Update the simulated Joy-Con state based on Bluetooth data (if applicable)
            // For example, interpret read_data as button presses, analog stick values, etc.
            update_joycon_state(&mut joycon, read_data);

            // Perform any necessary actions based on the Joy-Con state
            process_joycon_state(&mut joycon);

            // Send the current Joy-Con state as data over Bluetooth
            let joycon_state_data = serialize_joycon_state(&joycon);
            characteristic.write(&joycon_state_data);

            // Handle incoming HID reports and other communication
            handle_incoming_reports(device);

            // Add a delay to control the update rate (adjust as needed)
            wait_for_duration(10); // Adjust the delay based on your requirements
        }
    }
}

Disclaimer:

  • This code is a highly simplified and abstract representation intended for educational purposes only.
  • It does not include real implementations for Bluetooth communication or accurate Joy-Con emulation.
  • Developing a practical Joy-Con emulator with Bluetooth communication is a complex and time-consuming project.
  • Additionally, reverse engineering proprietary protocols without authorization may have legal and ethical implications.
  • Respect intellectual property rights and legal considerations when working on such projects.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment