Relic Hunter Deep Diver

from __main__ import Adventurer

class DeepDiver(Adventurer):
    def get_action(self, state):
        if state.treasures:
            tvals = {}
            for i in range(len(state.treasures)):
                itm = state.treasures[i]
                w = itm.weight
                v = itm.value
                if w + state.carry_weight > self.max_total_weight or w > self.max_single_weight:
                    w = 100
                if v / w < state.room * self.min_value_ratio:
                    v = 0
                tvals[i] = v / w
            besttind = max(tvals, key=lambda x: tvals[x])
            bestt = (besttind,
                     state.treasures[besttind].value,
                     state.treasures[besttind].weight)
        else:
            bestt = None
        if state.room < self.max_dive_dist and state.carry_weight == 0:
            return 'next'
        if bestt and state.carry_weight + bestt[2] <= self.max_total_weight and bestt[1] > 0 and bestt[2] <= self.max_single_weight:
            return 'take',bestt[0],bestt[2]
        return 'previous'
    def enter_ruins(self):
        self.max_single_weight = 2
        self.max_total_weight = 15
        self.min_value_ratio = 2
        self.max_dive_dist = 43
        pass