def getLegalActions(state, ghostIndex):
"""
Ghosts cannot stop, and cannot turn around unless they
reach a dead end, but can turn 90 degrees at intersections.
"""
conf = state.getGhostState(ghostIndex).configuration
possibleActions = Actions.getPossibleActions(conf, state.data.layout.walls)
reverse = Actions.reverseDirection(conf.direction)
if Directions.STOP in possibleActions:
possibleActions.remove(Directions.STOP)
if reverse in possibleActions and len(possibleActions) > 1:
possibleActions.remove(reverse)
return possibleActions
def getLegalActions(state):
"""
Returns a list of possible actions.
"""
return Actions.getPossibleActions(state.getPacmanState().configuration, state.data.layout.walls)