// JOSEPH KONADU YEBOAH - 
// YUSSIF PENNIE - 1694713209

int red = 9;              // Declare a variable 'red' and assign it to digital pin 9
int yellow = 10;          // Declare a variable 'yellow' and assign it to digital pin 10
int green = 11;           // Declare a variable 'green' and assign it to digital pin 11
int blue = 12;            // Declare a variable 'blue' and assign it to digital pin 12

void setup() {
  Serial.begin(9600);     // Initialize serial communication at a baud rate of 9600 bps

  pinMode(red, OUTPUT);   // Set pin 'red' as an output 
  pinMode(yellow, OUTPUT);// Set pin 'yellow' as an output
  pinMode(green, OUTPUT); // Set pin 'green' as an output
  pinMode(blue, OUTPUT);  // Set pin 'blue' as an output

  // Ensure all the pins are initially LOW (LEDs off)
  digitalWrite(red, LOW);   
  digitalWrite(yellow, LOW);
  digitalWrite(green, LOW); 
  digitalWrite(blue, LOW);  
}

void loop() {

  if (analogRead(A0) > 1000) {  // Read analog value from pin A0 and check if it is greater than 1000 (Y-axis max position)
    Serial.println("TOP");      // Print "TOP" to the serial monitor

    // Turn on the 'red' LED and turn all other LEDs off
    digitalWrite(red, HIGH);    
    digitalWrite(yellow, LOW);  
    digitalWrite(green, LOW);   
    digitalWrite(blue, LOW);    
  }

  if (analogRead(A0) == 0) {    // Read analog value from pin A0 and check if it is 0 (Y-axis min position)
    Serial.println("BOTTOM");   // Print "BOTTOM" to the serial monitor
    
    // Turn on the 'yellow' LED and turn all other LEDs off
    digitalWrite(red, LOW);     
    digitalWrite(yellow, HIGH); 
    digitalWrite(green, LOW);   
    digitalWrite(blue, LOW);    
  }

  if (analogRead(A1) > 1000) {  // Read analog value from pin A1 and check if it is greater than 1000 (X-axis min position)
    Serial.println("LEFT");     // Print "LEFT" to the serial monitor

    // Turn on the 'green' LED and turn all other LEDs off
    digitalWrite(red, LOW);     
    digitalWrite(yellow, LOW);  
    digitalWrite(green, HIGH);  
    digitalWrite(blue, LOW);    
  }

  if (analogRead(A1) == 0) {    // Read analog value from pin A1 and check if it is 0 (X-axis max position)
    Serial.println("RIGHT");    // Print "RIGHT" to the serial monitor

    
    // Turn on the 'blue' LED and turn all other LEDs off
    digitalWrite(red, LOW);     
    digitalWrite(yellow, LOW);  
    digitalWrite(green, LOW);   
    digitalWrite(blue, HIGH);   
  }

  if (analogRead(A2) == 0) {    // Read analog value from pin A2 and check if it is 0 (button pressed)
    Serial.println("BUTTON PRESSED"); // Print "BUTTON PRESSED" to the serial monitor

    // Turn on all LEDs
    digitalWrite(red, HIGH);    
    digitalWrite(yellow, HIGH);
    digitalWrite(green, HIGH);
    digitalWrite(blue, HIGH);
  } 
  
  else {
    Serial.println("---------------------"); // Print a separator line to the serial monitor

    // Turn off all LEDs
    digitalWrite(red, LOW);     
    digitalWrite(yellow, LOW);
    digitalWrite(green, LOW);
    digitalWrite(blue, LOW);
  }

  delayMicroseconds(100);                    // Wait for 100 microseconds before repeating the loop
}