class mouseTrack{
  
  int [] previousX;
  int [] previousY;
  int counter;
  mouseTrack()
  {
    counter = 0;
    previousX = new int[50];
    previousY = new int[50];
  }
  
  void addLoc(int mX, int mY)
  {
    if(counter < 50)
    {
      previousX[counter] = mX;
      previousY[counter] = mY;
      counter++;
    }    
    if(counter == 50)
     {
       counter = 0;
     }
  }
  
  boolean hasMouseMoved()
  {
    float dx = 0;
    float dy = 0;
   if(counter > 0){ 
    for(int i = 0; i < counter;i++)
    {
       dx += previousX[i];
       dy += previousY[i];
    }
    //println ("dx " + dx/counter + "  dy " + dy/counter);
    // If less than 20 pixels movement, mouse is notmoving
    if(  (dx / counter)  > previousX[0]+20 || (dx / counter) < previousX[0]-20 ) //Mouse is moving
      return true;
    else
      if(  (dy / counter)  > previousY[0]+20 || (dy / counter) < previousY[0] - 20 ) //Mouse is moving
         return true;
         
        return false;
    }
    return false;
   }
  }