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puzzleGoalGenerator.py
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puzzleGoalGenerator.py
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def horizontalGoalState(dim):
return [(x + 1) % (dim * dim) for x in range(dim * dim)]
def verticalGoalState(dim):
return [((dim * (i % dim) + (i // dim) + 1) % (dim * dim)) for i in range(dim * dim)]
def spiralGoalState(dim, moveAxis='x'):
goalState = [0 for i in range(dim * dim)]
moves = {"x": (1, -1), "y": (dim, -dim)}
moveIndex = {"x": 0, "y": 0}
seen = []
lastIndex = -moves[moveAxis][moveIndex[moveAxis]]
while len(seen) < len(goalState):
for _ in range(dim):
lastIndex += moves[moveAxis][moveIndex[moveAxis]]
if lastIndex >= dim * dim or lastIndex < 0 or goalState[lastIndex] in seen:
lastIndex -= moves[moveAxis][moveIndex[moveAxis]]
break
goalState[lastIndex] = (len(seen) + 1) % (dim * dim)
seen.append(goalState[lastIndex])
moveIndex[moveAxis] = (moveIndex[moveAxis] + 1) % 2
moveAxis = "x" if moveAxis == "y" else "y"
return goalState
def yMajorSpiralGoalState(dim):
return spiralGoalState(dim, moveAxis='y')
def xMajorSpiralGoalState(dim):
return spiralGoalState(dim)