EMDR iOS & macOS App

A Metal-powered EMDR (Eye Movement Desensitization and Reprocessing) therapy app for iOS and macOS.

Overview

This SwiftUI-based application provides smooth bilateral stimulation through a moving white dot, commonly used in EMDR therapy sessions. The app leverages Metal rendering for optimal performance and smooth animations across Apple platforms.

Features

• Smooth Metal Rendering: Hardware-accelerated dot movement for consistent performance
• Adjustable Speed: Drag vertically to change dot speed (100-8000 points/second)
• Pause/Resume: Single tap to pause or resume the movement
• Reset Function: Triple tap to reset to default settings (2500 pt/s)
• Cross-Platform: Supports iPhone, iPad, Mac, and Apple Vision Pro
• Clean Interface: Minimal HUD that appears only when adjusting settings

Controls

Gesture	Action
Single Tap	Pause/Resume movement
Triple Tap	Reset to default speed (2500 pt/s)
Vertical Drag	Adjust speed (up = faster, down = slower)

Technical Details

Architecture

• SwiftUI for the user interface
• Metal for high-performance rendering
• Custom MetalView for gesture handling and dot animation
• MVVM pattern with @State property wrappers

Performance

• Default speed: 2500 points/second
• Speed range: 100-8000 points/second
• 60fps rendering with Metal
• Optimized for battery efficiency

Requirements

• iOS: 26.0+
• macOS: 15.6+
• Xcode: 16.0+
• Swift: 5.0+

Installation

1. Clone the repository:

   git clone <repository-url>
   cd emdr

2. Open the project:

   open emdr.xcodeproj

3. Configure your development team and bundle identifier in the project settings

4. Build and run on your target device

Project Structure

emdr/
├── emdr/
│   ├── emdrApp.swift          # App entry point
│   ├── ContentView.swift      # Main UI and gesture handling
│   ├── MetalView.swift        # Metal rendering view
│   └── MetalRenderer.swift    # Metal rendering logic
├── emdr.xcodeproj/           # Xcode project files
└── Assets.xcassets/          # App icons and assets

Development

Key Components

• ContentView: Main SwiftUI view handling state and gestures
• MetalView: UIViewRepresentable wrapper for Metal rendering
• MetalRenderer: Core Metal rendering engine for smooth animations

Customization

The app can be easily customized by modifying:

• Default speed in ContentView.swift
• Dot size via dotDiameter property
• Color scheme in the Metal renderer
• Speed adjustment sensitivity

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Test on multiple devices
5. Submit a pull request

License

[Add your license here]

Disclaimer

This app is designed as a tool to support EMDR therapy but should only be used under the guidance of a qualified mental health professional. It is not a replacement for professional therapy or medical treatment.

Support

For issues or questions:

• Open an issue in this repository
• Contact: [Your contact information]

---

Built with ❤️ using SwiftUI and Metal