filter up down movement when on a seat

main.py

@@ -43,6 +43,10 @@ def nextSquare(passenger, grid):
     candidati = []
     for i in mooreNeighbourhood(passenger.curr):
         if manhattanDistance(passenger.dest, i) < manhattanDistance(passenger.dest, passenger.curr):
+            if grid[i[0]][i[1]].typ == SquareType.SEAT:
+                candidati.append(passenger.curr[0], passenger.curr[1] + 1)
+                candidati.append(passenger.curr[0], passenger.curr[1] - 1)
+            else:
                 candidati.append(i)
     for i in candidati:
         if grid[i[0]][i[1]].typ == SquareType.AISLE and grid[i[0]][i[1]].occupant != None: #this should work well enough for one aisle plane