LastGhostsMoves=[(0,0)]*4

def GhostAI():
   #deplacement Fantome
   # for F in Ghosts:
   #    L = GhostsPossibleMove(F[0],F[1])
   #    choix = random.randrange(len(L))
   #    F[0] += L[choix][0]
   #    F[1] += L[choix][1]
   global LastGhostsMoves
   for i in range(len(Ghosts)):
      CurrentCase=TBL[Ghosts[i][1]][Ghosts[i][0]]
      L=GhostsPossibleMove(Ghosts[i][0],Ghosts[i][1], CurrentCase)
      if CurrentCase==0 and (OppositeMove(LastGhostsMoves[i]) in L):
         L.remove(OppositeMove(LastGhostsMoves[i])) #Possible car LastGhostsMoves[i] est forcément dans L (Quand le fantome a déja bougé)
      choix = random.randrange(len(L))
      Ghosts[i][0] += L[choix][0]
      Ghosts[i][1] += L[choix][1]
      LastGhostsMoves[i]=L[choix]