public Direction choisirDirectionAleatoire()
		{
			Random rand = new Random();
			switch (rand.nextInt(8))
			{
				case 0 :
					return Direction.H;
				case 1 :
					return Direction.HD;
				case 2 :
					return Direction.D;
				case 3 :
					return Direction.DB;
				case 4 :
					return Direction.B;
				case 5 :
					return Direction.BG;
				case 6 :
					return Direction.G;
				case 7 :
					return Direction.GH;
			}
			return Direction.H;
		}