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14.13. Self Check¶

Please complete the play function.

        def play(self, agent1, agent2):
---
    agent1.reset()
---
    agent2.reset()
---

    for i in range(self.num_rounds):
---
        resp1 = agent1.respond(agent2)
---
        resp2 = agent2.respond(agent1)
---

        pay1, pay2 = self.payoffs[resp1, resp2]
---

        agent1.append(resp1, pay1)
---
        agent2.append(resp2, pay2)
---

    return agent1.score, agent2.score

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Please put the step function in order.

        def step(self):
    n = len(self.agents)
    fits = self.get_fitnesses()
---
    # see who dies
    index_dead = self.choose_dead(fits)
    num_dead = len(index_dead)
---
    # replace the dead with copies of the living
    replacements = self.choose_replacements(num_dead, fits)
    self.agents[index_dead] = replacements
---
    # update any instruments
    self.update_instruments()