from otree.api import ( models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer, Currency as c, currency_range, ) import random author = 'Zoe Zhao' doc = """ Stag-hunt game """ class Constants(BaseConstants): name_in_url = 'stag_hunt_game' players_per_group = 2 for i in range(0,5): x = random.uniform(0, 1) if x <= 0.45: i = i+1 else: break num_rounds = 5 + i instructions_template = 'stag_hunt_game/instructions.html' result_wait_template = 'stage_hunt_game/MyWaitPage.html' stag_match_payoff = c(4) stag_mismatch_payoff = c(0) h_1_hare_payoff = c(1) players_per_group = 2 class Subsession(BaseSubsession): def creating_session(self): self.group_randomly(fixed_id_in_group=True) if self.round_number == 1: paying_round = random.randint(1, Constants.num_rounds) self.session.vars['paying_round'] = paying_round class Group(BaseGroup): def h_2_hare_payoff(self): if self.round_number <= 3: h_2_hare_payoff = c(2) else: h_2_hare_payoff = c(3) return h_2_hare_payoff def set_payoffs(self): h_1 = self.get_player_by_role('Hunter_1') h_2 = self.get_player_by_role('Hunter_2') if h_1.decision == 'hare' and h_2.decision == 'hare': h_1.payoff = Constants.h_1_hare_payoff h_2.payoff = self. h_2_hare_payoff() else: if h_1.decision == 'hare' and h_2.decision == 'stag': h_1.payoff = Constants.h_1_hare_payoff h_2.payoff = Constants.stag_mismatch_payoff else: if h_1.decision == 'stag' and h_2.decision == 'hare': h_1.payoff = Constants.stag_mismatch_payoff h_2.payoff = self. h_2_hare_payoff() else: h_1.payoff = Constants.stag_match_payoff h_2.payoff = Constants.stag_match_payoff class Player(BasePlayer): decision = models.StringField( choices=['stag', 'hare'], doc="""This player's decision is either stag or hare""", widget=widgets.RadioSelect, ) def other_player(self): return self.get_others_in_group()[0] def role(self): if self.id_in_group == 1: return 'Hunter_1' if self.id_in_group == 2: return 'Hunter_2' name = models.StringField() age = models.IntegerField() gender = models.StringField() major = models.IntegerField() race = models.IntegerField() feelings = models.IntegerField()