# Bilateral Stimulation Simulator

Simple browser-based tool with an Admin panel and a full-screen Patient view. The Admin controls everything; the Patient view mirrors motion and audio.

## Admin Options

- Shape
  - Options: Circle, Square, Triangle
- Shape Color
  - Picker + presets: Green, Blue, Yellow, Red, White
- Background Color
  - Picker + presets: Green, Blue, Yellow, Red, White
- Direction
  - Left↔Right, Up↕Down, Diagonal ↘, Diagonal ↗
- Speed
  - Range: 50–600 px/s
  - Speed Boost: 1×, 2×, 3×, 4× multiplier
- Size
  - Range: 10–100 px
- Vertical Position
  - Range: 0–100% (Reset to 50%)
- Glow Pulse
  - Enable/Disable
  - Glow Radius: 0–200%
  - Glow Rate: 0.1–3.0 Hz
- Ramp Speed
  - Enable/Disable, Seconds: 1–60
  - When disabled, motion uses constant speed (Linear)
- Smoothness / Easing
  - Linear (constant speed)
  - Ease In-Out (slows at edges)
- Edge Pause
  - Range: 0–150 ms
- Wiggle
  - Enable/Disable, Amplitude: 0–10 px

### Audio

- Audio Mode
  - Programmatic, From Files, Off
- Programmatic Presets
  - Pink Noise, Hybrid (noise + edge cues), Click, Ping, Woodblock
  - Bell, Bass, Kick, Snare, Hi-Hat, Sweep, Zap, Bubble
- Pan Sync to Movement
  - Toggle on/off
- Pan Rate (for continuous panning)
  - Range: 0.1–2.0 Hz
- Cue Rate (Hybrid)
  - Range: 0.1–3.0 Hz
- Volume
  - Range: 0–100%
- Test Sound
  - Plays the selected programmatic preset briefly

### File Audio

- Choose Folder, select track from dropdown (MP3/WAV)

### Presets (Admin)

- Save: Enter name and save current state
- Apply: Select from list and apply
- Delete: Remove a preset
- Import/Export: JSON of all presets

### Patient Management

- Patient Name: Save patient
- Load Patient: Select from list
- Clear Sessions: Reset history for loaded patient
- Delete Patient: Remove patient record
- Session History: Auto-listed with start/end time and duration

### Session Controls (Preview Panel)

- Timer (minutes)
- Start Session / End Session
- Status + Elapsed time

## Patient View

- Full-screen canvas with motion synced to Admin
- Audio unlock: most browsers require a user gesture (e.g., click or key press) before audio can play

## How to Run

- Open `index.html` and use the Admin panel
- Click “Open Patient View” to launch `patient.html` in a separate tab/window

## Network Mode Setup (Two Computers on the Same Wi‑Fi/LAN)

### Overview
- Therapist runs a lightweight relay (`server.py`) once on their computer.
- Admin connects to the relay with a Session ID and copies the Patient Join Link.
- Patient opens the link on their computer and performs a quick gesture to unlock audio.

### One‑Time Install (WebSocket Relay)
- Windows:
  - Press `Windows` key → type `PowerShell` → `Enter`
  - Check Python: `python --version` (or `py --version`)
  - Install package: `python -m pip install websockets` (or `py -m pip install websockets`)
  - Start relay: `python server.py` (or `py server.py`)
  - If prompted by Windows Defender Firewall, click “Allow access”.
- macOS:
  - Press `Cmd+Space` → type `Terminal` → `Enter`
  - Check Python: `python3 --version`
  - Install package: `python3 -m pip install websockets`
  - Start relay: `python3 server.py`
- Linux (Ubuntu/Debian/Fedora etc.):
  - Press `Ctrl+Alt+T` to open Terminal
  - Check Python: `python3 --version`
  - Install package: `python3 -m pip install websockets`
  - Start relay: `python3 server.py`

### Find Your Therapist Computer’s IP Address
- Windows: run `ipconfig` → use the `IPv4 Address` on your active adapter (e.g., `192.168.1.5`).
- macOS: run `ipconfig getifaddr en0` (Wi‑Fi) or `ipconfig getifaddr en1` (alternate); or `ifconfig | grep "inet "`.
- Linux: run `hostname -I` and pick the local `192.168.x.x` address; or `ip addr show`.

### Connect Admin (Therapist Computer)
1) Open Admin in a browser: `http://localhost:8000/`
2) In “Network Mode”:
   - Server URL: `ws://<THERAPIST_IP>:8787` (e.g., `ws://192.168.1.5:8787`)
   - Session ID: any label you like (e.g., `room-1`)
   - Click `Connect`
3) Copy the Patient Join Link shown below the connection fields.

### Connect Patient (Second Computer)
1) Open the copied Patient Join Link in a browser
2) Perform a quick gesture (mouse move or key press) to unlock audio (browser policy)
3) The Patient view will mirror Admin changes in real time

### Tips
- If the Patient does not connect, verify both computers are on the same network and can reach `ws://<THERAPIST_IP>:8787`.
- On Windows, allow the relay through the firewall when prompted.
- You can disconnect Network Mode and continue Local Mode at any time.

## Data Storage

- Presets: `localStorage` key `bls_presets`
- Patients: `localStorage` key `bls_patients`

## Notes

- If Audio is enabled and Programmatic mode is selected, the Patient tab may need one user interaction to unlock audio
- Speed Boost multiplies the slider value for effective motion speed

## ⚠️ Disclaimer

This tool is for research, education, and personal experimentation with bilateral stimulation. It is NOT a substitute for professional therapy, diagnosis, or treatment. Use at your own discretion.