Very stupid code question regarding millis()

Projects Programming
40

Okay. I used your code and modified it for all of the hand gestures I want to use in my wearable computer. Anything wrong?

int gesture[4];
int inputMatchupRightClick[4] = {HIGH, LOW, HIGH, HIGH};
int inputMatchupLeftClick[4] = {LOW, HIGH, HIGH, HIGH};
int inputMatchupSpace[4] = {HIGH, HIGH, LOW, HIGH};
int inputMatchupEnter[4] = {HIGH, LOW, LOW, HIGH};
int inputMatchupCaps[4] = {LOW, LOW, HIGH, HIGH};

boolean matches(int a[4], int b[4])
{
  for (int i = 0; i < 4; i++)
    if (a[i] != b[i])
      return false;
      
  return true;
}

void setup()
{
  Serial.begin(9600);
  pinMode(3, INPUT_PULLUP);
  pinMode(4, INPUT_PULLUP);
  pinMode(5, INPUT_PULLUP);
  pinMode(6, INPUT_PULLUP);
}

void loop()
{
  static unsigned long lastUnmatchTime = 0;

  gesture[0] = digitalRead(3);
  gesture[1] = digitalRead(4);
  gesture[2] = digitalRead(5);
  gesture[3] = digitalRead(6);

  if (matches(gesture, inputMatchupRightClick))
  {
    if (millis() - lastUnmatchTime >= 50)
    {
     Serial.println("right click detected");
    }
  }
  else if (matches(gesture, inputMatchupLeftClick)
  {
    if (millis() - lastUnmatchTime >= 50)
    {
     Serial.println("left click detected");
    }
  }
  else if (matches(gesture, inputMatchupSpace)
  {
    if (millis() - lastUnmatchTime >= 60)
    {
     Serial.println("space detected");
    }
  }
  else if (matches(gesture, inputMatchupEnter)
  {
    if (millis() - lastUnmatchTime >= 60)
    {
     Serial.println("enter detected");
    }
  }
  else if (matches(gesture, inputMatchupCaps)
  {
    if (millis() - lastUnmatchTime >= 60)
     {
      Serial.println("caps detected");
     }
  }
  else{
    lastUnmatchTime = millis();
  }
}