The approach I course of keys presses in my functions is I’ve 2 lists starting from 0-127 (all ASCII keys). One is for a key_duration_state and the opposite for a key_hold_state. I do not know what kind of occasion listener you are utilizing, however take a generic onKeyDown/Up(int key) listener operate for instance. This capabilities job is to let you already know when a key has been pressed, the place key was the worth of the important thing pressed. I’ve it return 1 so long as the secret’s nonetheless pressed, and 0 when it is launched. All I want in an effort to register each ASCII keys press/launch state is cross my record to the operate. Same goes for length. Just increment that keys duration_state so long as its pressed. Then reset it to zero upon launch:

// tells if its pressed
bool onKeyDown(int key) {
    key_hold_state[key] = 1;
    key_duration_state[key]++;
}

// tells if its launched
bool onKeyUp(int key) {
    key_hold_state[key] = 0;
    key_duration_state[key] = 0;
}

What I do to find out if a secret’s being held for a length is use my record key_hold_state which shops whether or not the secret’s pressed down or not. Then I’ve one other operate, say isHeldFor(int length) which checks if that key was held for the length:

bool wasHeldFor1s = keyListener.isHeldFor('A', DURATION_1s);

bool isHeldFor(int key, int length) {
    return duration_held_state[key] == length);
}

This is simply my method. There might be a greater approach, however storing each keys states into lists is an effective transfer. Keeps it clear, concise, and arranged.