private boolean isCrowded(Game game)
    {
    	GHOST[] ghosts=GHOST.values();
        float distance=0;
        
        for (int i=0;i<ghosts.length-1;i++)
            for(int j=i+1;j<ghosts.length;j++)
                distance+=game.getShortestPathDistance(game.getGhostCurrentNodeIndex(ghosts[i]),game.getGhostCurrentNodeIndex(ghosts[j]));
        
        return (distance/6)<CROWDED_DISTANCE ? true : false;
    }