def get_action()

in agent/decision_modules/navigator.py [0:0]

• 26 lines of code
• 7 McCabe index (conditional complexity)

    def get_action(self):
        """
        First try to take an unexplored nav action. If none exist, sample one
        of the successful or failed nav actions.

        """
        loc = kg.player_location

        # If there was a previously suggested direction, try it
        if self._suggested_directions:
            act = rng.choice(self._suggested_directions)
            del self._suggested_directions[:]
            dbg("[NAV] Trying suggested action: {}".format(act))
            return act

        # First try to move in one of the directions mentioned in the description.
        likely_nav_actions = self.get_mentioned_directions(loc.description)
        for act in likely_nav_actions:
            if not loc.has_action_record(act):
                dbg("[NAV] Trying mentioned action: {}".format(act))
                return act

        # Then try something new
        unexplored = self.get_unexplored_actions(loc)
        if unexplored:
            act = rng.choice(unexplored)
            dbg("[NAV] Trying unexplored action: {}".format(act))
            return act

        # Try a previously successful action
        if rng.random() > self._p_retry:
            successful_actions = self.get_successful_nav_actions(loc)
            if successful_actions:
                act = rng.choice(successful_actions)
                dbg("[NAV] Trying previously successful action: {}".format(act))
                return act

        # Finally, just try something random
        act = rng.choice(self._nav_actions)
        dbg("[NAV] Trying random action: {}".format(act))
        return act