A cross-platform C++20 game input library supporting gamepads, keyboards, mice, touch, and haptics on macOS, iOS, Android, Windows, Linux, and game consoles.

This project is a module within the Campello ecosystem.

👉 Main repository: https://github.com/rusoleal/campello

Campello is a modular, composable game engine built as a collection of independent libraries. Each module is designed to work standalone, but integrates seamlessly into the engine runtime.

#include <campello_input/input_system.hpp>

// Create input system (platform auto-detection)
auto input = systems::leal::campello_input::InputSystem::create();

// In your game loop:
while (running) {
    input->update();  // Poll input devices
    
    // Check gamepads
    for (int i = 0; i < input->gamepadCount(); i++) {
        auto* gamepad = input->gamepadAt(i);
        systems::leal::campello_input::GamepadState state;
        if (gamepad->getState(state)) {
            // Use state.axes[] and state.buttons...
        }
    }
}

See the examples/ directory for complete working examples.

• minimal - Simple command-line input demo (no dependencies)
• glfw_integration - Full game-like example with GLFW
• windows - Win32 GUI input monitor (Windows only)
• macos - macOS AppKit GUI input monitor (macOS only)
• ios - iOS UIKit input monitor with touch support (iOS only)
• android - Android Studio project with GameActivity

Generate API documentation with Doxygen:

mkdir build && cd build
cmake ..
cmake --build . --target docs
# Open docs/html/index.html

See docs/pages/usage_guide.md for detailed usage patterns including:

• Gamepad input with deadzones
• Keyboard and mouse handling
• Touch input for mobile
• Haptics/force feedback
• Device hot-plugging
• Best practices

See CHANGELOG.md for version history and release notes.