from otree.api import (
    models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer,
    Currency as c, currency_range
)

doc = ''
class Constants(BaseConstants):
    name_in_url = 'public_goods_emc'
    players_per_group = None
    num_rounds = 1
    endowment = c(50)
    multplier = 2
class Subsession(BaseSubsession):
    my_field = models.CurrencyField()
class Group(BaseGroup):
    pass
class Player(BasePlayer):
    contribution = models.CurrencyField(label='What is your contribution towards the project?', max=Constants.endowment, min=0)
    payoff_player1 = models.CurrencyField(initial=0)
    payoff_player2 = models.CurrencyField(initial=0)
    payoff_player3 = models.CurrencyField(initial=0)
    payoff_player4 = models.CurrencyField(initial=0)
    def set_payoffs(self):
        self.payoff_player1 =(50 - self.contribution) + (((45 + self.contribution)*2)/4)
        self.payoff_player2 =(50 - 10) + (((45 + self.contribution)*2)/4)
        self.payoff_player3 =(50 - 15) + (((45 + self.contribution)*2)/4)
        self.payoff_player4 =(50 - 20) + (((45 + self.contribution)*2)/4)