Need Help with Avoidance code Arduino

Using Arduino Project Guidance
2

it might be in the direction functions as these four are not mirror-symmetrical as one should expect.
try this

  int front ()
 {
    off();
    digitalWrite(leftmotor2, HIGH);
    digitalWrite(rightmotor2, HIGH);
}
    
  int right () 
{
    off();
    digitalWrite(leftmotor2, HIGH);
    digitalWrite(rightmotor1, HIGH);
}
    
  int left ()
 {
    off();
    digitalWrite(leftmotor1, HIGH);
    digitalWrite(rightmotor2, HIGH);
}
    
  int back () 
{
    off();
    digitalWrite(leftmotor1, HIGH);
    digitalWrite(rightmotor1, HIGH);
}