anchor.diff:    int lastMoveTimeStamp = 0;
     int lastRotateTimeStamp = 0;
     int lastAutoDownTimeStamp = 0;
  -  
  +
     List<int> ranking = [0,0,0];
   
     int get no1Score => (ranking.length >=3?ranking[2]:0);
  
positive.code:       table.clearLines(t);
      }
    }
    
    updateRanking({currentScore:null}) {
      if(currentScore == null) {
        currentScore = score;
  
negative.code:     score = 0;
      level = baseLevel;
    }
  
    updateScore(int numOfClear) {
      if(numOfClear > 0) {
        score += math.pow(levelScoreBase[level], numOfClear);
  