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


author = 'Your name here'

doc = """
Your app description
"""


class Constants(BaseConstants):
    name_in_url = 'treat1'
    players_per_group = 4
    num_rounds = 1


class Subsession(BaseSubsession):
        
    def creating_session(self):
        import itertools
        colors = itertools.cycle(['red', 'blue', 'green'])
        for p in self.get_players():
            p.treat = next(colors)
            p.participant.vars['treat'] = p.treat

class Group(BaseGroup):
    pass


class Player(BasePlayer):

    treat = models.StringField()