Method SDLControllerManager

source/SDLControllerManager.cpp:9–110

#include <QSettings>

SDLControllerManager::SDLControllerManager(QObject *parent)
    : QObject(parent), pollTimer(new QTimer(this)) {

    // Load saved controller mappings or use defaults
    loadControllerMappings();

    connect(pollTimer, &QTimer::timeout, this, [=]() {
        SDL_PumpEvents();  // ✅ Update SDL input state

        // 🔁 Poll for axis movement (left stick)
        if (joystick) {
            // Use joystick axis instead of controller axis
            int x = SDL_JoystickGetAxis(joystick, 0); // Axis 0 = X
            int y = SDL_JoystickGetAxis(joystick, 1); // Axis 1 = Y

            const int DEADZONE = 16000;
            if (qAbs(x) >= DEADZONE || qAbs(y) >= DEADZONE) {
                float fx = x / 32768.0f;
                float fy = y / 32768.0f;

                float angle = qAtan2(-fy, fx) * 180.0 / M_PI;
                if (angle < 0) angle += 360;

                int angleInt = static_cast<int>(angle);

                // ✅ Invert angle for dial so clockwise = clockwise
                angleInt = (360 - angleInt) % 360;

                if (qAbs(angleInt - lastAngle) > 3) {
                    lastAngle = angleInt;
                    emit leftStickAngleChanged(angleInt);
                }
                leftStickActive = true;  // ✅ Mark stick as active
            }
            else {
                // Stick is in deadzone (center)
                if (leftStickActive) {
                    // ✅ Was active → now released → emit release signal once
                    emit leftStickReleased();
                    leftStickActive = false;
                }
            }
        }

        SDL_PumpEvents();

        // Check hold timer
        for (auto it = buttonPressTime.begin(); it != buttonPressTime.end(); ++it) {
            QString btn = it.key();
            quint32 pressTime = it.value();
            quint32 now = SDL_GetTicks();

            if (!buttonHeldEmitted.value(btn, false) && (now - pressTime) >= HOLD_THRESHOLD) {
                emit buttonHeld(btn);
                buttonHeldEmitted[btn] = true;
            }
        }