1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
# -*- coding: utf-8 -*-
import os
import pprint
import pickle
from display import Display
class Coach:
""" The coach supervises the selection of exercises. """
print('in coach, class definition')
def __init__(self):
#print("in coach.__init__")
self._ex = None # the learner can change the settings of _this_ exerc
def register(self, sess, dis, collect, learner):
self._sess = sess
self._dis = dis
self._collect = collect
self._learner = learner
# print('in coach.register, exaddsimp =', self._collect.select(0))
# print('in coach.register, exaddsimp._display =', self._collect.select(0)._display)
# print('in coach.register, expassten =', self._collect.select(1))
# print('in coach.register, extimesdiv=', self._collect.select(2))
# print('in coach.register, =')
# print('in coach.register, =')
# print('in coach.register, =')
def request_exercise(self):
""" This preliminary version just lets the Learner select. """
#print("in coach.request_exercise")
self._dis.offer_coll_to_learner(self._collect)
# calls back with notify('exerc-selected'... OR 'switch-to-setts'
def notify(self, (msg, data)):
"""called by the observed objects"""
print("in coach.notify: msg=, data=", (msg, data))
if msg == 'setting-done': # from display
self._ex.update_setting(data)
self._learner.notify(('start-calcs', self._ex))
elif msg == 'exerc-selected': # from collection
self._ex = self._collect.select(data)
print('in coach.notify(exerc-selected), _sett=',self._ex._sett)
self._learner.notify(('start-calcs', self._ex))
elif msg == 'switch-to-setts': # from display
self._ex = self._collect.select(data)
self._dis.offer_setting(self._ex)
else:
raise Error()
|
