def getLegalActions(state, agentIndex):
"""
Returns a list of possible actions.
"""
agentState = state.getAgentState(agentIndex)
return Actions.getPossibleActions(agentState.getPosition(), agentState.getDirection(),
state.getWalls())
def getLegalActions(state, ghostIndex):
"""
Ghosts cannot stop, and cannot turn around unless they
reach a dead end, but can turn 90 degrees at intersections.
"""
agentState = state.getGhostState(ghostIndex)
possibleActions = Actions.getPossibleActions(agentState.getPosition(),
agentState.getDirection(), state.getWalls())
reverse = Actions.reverseDirection(agentState.getDirection())
if (Directions.STOP in possibleActions):
possibleActions.remove(Directions.STOP)
if (reverse in possibleActions and len(possibleActions) > 1):
possibleActions.remove(reverse)
return possibleActions
