rumble method
Rumble on all joysticks.
Implementation
void rumble({
required final int duration,
final int lowFrequency = 65535,
final int highFrequency = 65535,
}) {
for (final joystick in joysticks.values) {
joystick.rumble(
duration: duration,
highFrequency: highFrequency,
lowFrequency: lowFrequency,
);
}
}