Capture the point for children

Projects General Guidance
6 
//Buttons
int send_R = 12;
int send_B = 11;

//rgb LED
int led1R = 10;
int led1B = 9;
int led2R = 8;
int led2B = 7;


int previusR = LOW;
int previousB = LOW;
int neutral = LOW;
long debounce = 200;
long dur_on = 0;
unsigned long previousMillis1 = 0;
unsigned long previousMillis2 = 0;
unsigned long previousMillis3 = 0;
int state = LOW;
int stateB = LOW;
int stateR = LOW;
unsigned long interval = 4;
unsigned long interval2 = 2;
unsigned long interval3 = 5;
unsigned long interval4 = 9;
long time = 0;

void setup() {
  pinMode(send_R, INPUT);
  pinMode(send_B, INPUT);
  pinMode(led1R, OUTPUT);
  pinMode(led1B, OUTPUT);
  pinMode(led2R, OUTPUT);
  pinMode(led2B, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  unsigned long currentMillis = millis();
  int buttonR = digitalRead(send_R);
  int buttonB = digitalRead(send_B);

  dur_on = (millis() - time) / 1000;

  if (buttonR == HIGH && previusR == LOW && millis() - time > debounce)
  {
    time = millis();
    if (state == HIGH)
      state = LOW;
    else
      state = HIGH;
  }

  if (buttonB == HIGH && previousB == LOW && millis() - time > debounce)
  {
    time = millis();
    if (state == HIGH)
      state = LOW;
    else
      state = HIGH;
  }


  // using this to so that if the blue button was pressed after the red one it uses this IF for the red button, so that it takes you from blue to neutral to red
  if ((buttonR == HIGH) && (millis() - time > debounce))
  {
    if ((stateB == LOW) && (dur_on >= interval)) {

      digitalWrite(led2R, HIGH);
      digitalWrite(led2B, LOW);
      Serial.println("first led is on");
      state == HIGH;
    }

    if ((stateB == HIGH) && (neutral == LOW)) {
      if (dur_on <= interval) {
        digitalWrite(led2B, HIGH);
        delay(interval2);
        digitalWrite(led2B, LOW);
        delay(interval2);
        digitalWrite(led2B, HIGH);
         delay(interval2);
         digitalWrite(led2B, LOW);
        Serial.println("losing blue led");
      }

      else if ((dur_on >= 5) && (dur_on <= 6)) {
        digitalWrite(led2R, LOW);
        digitalWrite(led2B, HIGH);
        digitalWrite(led2B, LOW);
        Serial.println("Neutral");
      }

      else if (dur_on >= interval4) {
        digitalWrite(led2R, HIGH);
        digitalWrite(led2B, LOW);
        Serial.println("red led on");
      }
    }
  }


  if ((buttonB == HIGH) && (millis() - time > debounce))
  {
    if (dur_on >= interval) {
      previousMillis2 = dur_on;
      digitalWrite(led2B, HIGH);
      digitalWrite(led2R, LOW);
      stateB = HIGH;
      stateR = HIGH;
      Serial.println("Blue is on");
    }
  }

  previusR = buttonR;
  previousB = buttonB;

}