def MakeSuccessor(x, y, gX, gY):
if (x < 0 or x >= MAX_X() or y < 0 or y >= MAX_Y()):
return None
ele = elevations[x][y]
ter = Terrain.GetTerrainVal(pix[x, y])
if ter == Terrain.OutOfBounds():
return None
s = State.State(ele, ter, x, y, gX, gY)
return s
def make_neighbor(x, y):
# validates out of bound indices
if (x < 0 or x >= MAX_X() or y < 0 or y >= MAX_Y()):
return None
ter = Terrain.GetTerrainVal(pix[x, y])
# filters out of bound neighbors
if ter == Terrain.OutOfBounds():
return None
# must be a valid neighbor at this point
return (x, y)
