captureAgents.py 文件源码

def getAction(self, gameState):
    """
    Calls chooseAction on a grid position, but continues on half positions.
    If you subclass CaptureAgent, you shouldn't need to override this method.  It
    takes care of appending the current gameState on to your observation history
    (so you have a record of the game states of the game) and will call your
    choose action method if you're in a state (rather than halfway through your last
    move - this occurs because Pacman agents move half as quickly as ghost agents).

    """
    self.observationHistory.append(gameState)

    myState = gameState.getAgentState(self.index)
    myPos = myState.getPosition()
    if myPos != nearestPoint(myPos):
      # We're halfway from one position to the next
      return gameState.getLegalActions(self.index)[0]
    else:
      return self.chooseAction(gameState)