#define ECHO_PINZ 2
#define ECHO_PINA 4
#define TRIG_PINZ 3
#define TRIG_PINA 5
int ambient;
const int led=12;
int AA;
int BB;
int walioko;
int bleu;

void setup() {
  Serial.begin(9600);
  pinMode(led, OUTPUT);
  pinMode(TRIG_PINA, OUTPUT);
  pinMode(TRIG_PINZ,OUTPUT);
  pinMode(ECHO_PINA, INPUT);
  pinMode(ECHO_PINZ, INPUT);
}

float readDistanceCM() {
  digitalWrite(TRIG_PINA, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PINA, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PINA, LOW);
  int duration = pulseIn(ECHO_PINA, HIGH);
  return duration * 0.034 / 2;
}

float readDistanceCMA() {
  digitalWrite(TRIG_PINZ, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PINZ, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PINZ, LOW);
  int duration = pulseIn(ECHO_PINZ, HIGH);
  return duration * 0.034 / 2;
}

void loop() {
  ambient = analogRead(A0)/4;
  float distance = readDistanceCM();
  float distancea = readDistanceCMA();

  if (distance < 50)  {AA = 1 ;}
  if (distance > 50)  {AA = 0 ;}
  if (distancea < 50) {BB = 1 ;}
  if (distancea > 50) {BB = 0 ;}
  if (AA == 0 && BB == 1) {bleu = 178;}
  if (AA == 1 && BB == 0) {bleu = 247;}
  if (AA == 1 && BB == 1) {bleu = 90;}
   if (AA == 0 && BB == 0 && bleu == 178) {walioko++;Serial.println(walioko);bleu = 90;}
   if (AA == 0 && BB == 0 && bleu == 247 && walioko > 0) {walioko--;Serial.println(walioko);bleu = 90;}
   if (walioko > 0) {analogWrite(led, ambient);}
   if (walioko == 0) {analogWrite(led, 0);}
  delay(10);
}