Function ModifierHeld

engine/Poseidon/Input/InputSubsystem.cpp:212–236

Modifier check: a v1 binding can carry an optional held input in the parallel userKeysModifiers[] array. If set, the modifier must be currently held for the binding to fire. Returns true if no modifier is required OR the modifier is held.

// currently held for the binding to fire.  Returns true if no modifier
// is required OR the modifier is held.
static bool ModifierHeld(const Input& in, UserAction action, int slot)
{
    if (slot >= in.userKeysModifiers[action].Size())
        return true;
    int mod = in.userKeysModifiers[action][slot];
    if (mod < 0)
        return true;

    const int value = InputBindingValue(mod);
    switch (InputBindingDevice(mod))
    {
        case INPUT_DEVICE_KEYBOARD:
            return value >= 0 && value < SDL_SCANCODE_COUNT && in.keyboard.keys[value] > 0.0f;
        case INPUT_DEVICE_MOUSE:
            return value >= 0 && value < N_MOUSE_BUTTONS && in.mouse.buttons[value] > 0.0f;
        case INPUT_DEVICE_STICK:
            return value >= 0 && value < N_JOYSTICK_BUTTONS && in.gamepad.stickButtons[value] > 0.0f;
        case INPUT_DEVICE_STICK_AXIS:
            return value >= 0 && value < N_JOYSTICK_AXES && std::fabs(in.gamepad.stickAxis[value]) > 0.8f;
        case INPUT_DEVICE_STICK_POV:
            return value >= 0 && value < N_JOYSTICK_POV && in.gamepad.stickPov[value];
        default:
            return false;
    }
}

static float QueryAction(const Input& in, UserAction action, bool checkFocus)
{