// Define constants for the x and y axis and the button pins
#define xAxis 34
#define yAxis 35
#define LEFT 5
#define RIGHT 2
#define UP 17
#define DOWN 18
#define StopLEFT 4
#define StopRIGHT 15
#define StopUP 16
#define StopDOWN 14

bool led1Off = true;
bool led2Off = true;
bool led3Off = true;
bool led4Off = true;

void setup() {
  // Initialize serial communication at 115200 bits per second:
  Serial.begin(115200);

pinMode(xAxis, INPUT);
pinMode(yAxis, INPUT);
pinMode(StopLEFT, INPUT);
pinMode(StopRIGHT, INPUT);
pinMode(StopUP, INPUT);
pinMode(StopDOWN, INPUT);
pinMode(LEFT, OUTPUT);
pinMode(RIGHT, OUTPUT);
pinMode(UP, OUTPUT);
pinMode(DOWN, OUTPUT);
 
}

void loop() {
  // Read the analog value for x,y axis
  int xValue = analogRead(xAxis);
  int yValue = analogRead(yAxis); 
  
  // print out the values
 // Serial.println(" %d %d \n",xValue,yValue);
  
 // delay(300);  // Delay between reads

  if(xValue <2000)
  {
    if (digitalRead(StopLEFT)== LOW )
    {
    digitalWrite(LEFT, HIGH);
    Serial.println("LEFT");
    }
   else if (digitalRead(StopLEFT)== HIGH)
   {
    Serial.println("StopLEFT");
    digitalWrite(LEFT, LOW);
   }
  }
  else if(xValue > 2100 )
  {
   if(digitalRead(StopRIGHT)== LOW)
   {
    Serial.println("RIGHT");
    digitalWrite(RIGHT, HIGH); 
   }
   else if (xValue > 2100)
   {
    Serial.println("StopRIGHT");
    digitalWrite(RIGHT, LOW);
   }
  }
  else
  {
     StopRightLeft();
  }

//***************************************************************

   if(yValue < 2000)
  {
    if (digitalRead(StopUP)== LOW )
   {
    digitalWrite(UP, HIGH);
    Serial.println("UP");
   }
  else if ( digitalRead(StopUP)== HIGH)
   {
    digitalWrite(UP, LOW);
    Serial.println("StopUP");
   }
  }
  else if(yValue > 2100)
  {
    if(digitalRead(StopDOWN)== LOW)
   {
    digitalWrite(DOWN, HIGH); 
    Serial.println("DOWN");
   }
  else if(digitalRead(StopDOWN)== HIGH)
   {
    digitalWrite(DOWN, LOW);
    Serial.println("StopDOWN");
   }
  }
  else
  {
   StopUpDown();
  }

    delay(50);  // Delay between reads
}

 void StopUpDown(){
    digitalWrite(UP, LOW);
    digitalWrite(DOWN, LOW);
 }

 void StopRightLeft(){
  digitalWrite(LEFT, LOW);
  digitalWrite(RIGHT, LOW);
 }