refactor for better student friendliness (hide things)
Changeset 59f8a41baee7…
Parent 774aaedfda3c…
by
Changes to 2 files · Browse files at 59f8a41baee7 Showing diff from parent 774aaedfda3c Diff from another changeset...
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@@ -0,0 +1,112 @@ + import os
+import pickle
+
+def ask(question):
+ while True:
+ print question,
+ answer = raw_input().strip().lower()
+ if answer in ('y', 'yes', 'yeah', 'si'):
+ return True
+ elif answer in ('n', 'no', 'nope'):
+ return False
+ else:
+ print 'Please type "yes" or "no"'
+
+class Determiner(object):
+ def __init__(self, questioner, question, true_question, false_question):
+ self.questioner = questioner
+ self._question = question
+ self.true_question = true_question
+ self.false_question = false_question
+
+ def question(self):
+ return self._question
+
+ def ask(self):
+ if ask(self.question()):
+ self.questioner.advance_yes()
+ else:
+ self.questioner.advance_no()
+
+
+class Thing(object):
+ def __init__(self, questioner, what):
+ self.questioner = questioner
+ self._what = what
+
+ def question(self):
+ return 'Are you thinking of %s?' % self._what
+
+ def ask(self):
+ if ask(self.question()):
+ self.questioner.mark_succeeded()
+ else:
+ self.questioner.mark_failed()
+
+
+class Questioner(object):
+ def __init__(self, initial_question):
+ self.root = Determiner(self, initial_question, None, None)
+
+ def start(self):
+ self.current_question = self.root
+ self._solved = False
+ self._failed = False
+
+ def next_question(self):
+ return self.current_question
+
+ def advance_yes(self):
+ self.last_branch = True
+ self.last_question = self.current_question
+ self.current_question = self.current_question.true_question
+
+ def advance_no(self):
+ self.last_branch = False
+ self.last_question = self.current_question
+ self.current_question = self.current_question.false_question
+
+ def out_of_ideas(self):
+ return self.current_question is None or self._failed
+
+ def solved(self):
+ return self._solved
+
+ def learn_thing_and_question(self, question, thing):
+ true_answer = Thing(self, thing)
+ false_answer = self.last_question.true_question
+ new_question = Determiner(self, question, true_answer, false_answer)
+ if self.last_branch == True:
+ self.last_question.true_question = new_question
+ else:
+ self.last_question.false_question = new_question
+
+ def learn_thing(self, thing):
+ new_thing = Thing(self, thing)
+ if self.last_branch == True:
+ self.last_question.true_question = new_thing
+ else:
+ self.last_question.false_question = new_thing
+
+ def needs_clarification(self):
+ return self.current_question is not None
+
+ def mark_succeeded(self):
+ self._solved = True
+
+ def mark_failed(self):
+ self._failed = True
+
+ def best_guess(self):
+ return self.current_question.what
+
+def load(path):
+ if os.path.exists(path):
+ with open(path, 'rb') as f:
+ return pickle.load(f)
+ else:
+ return Questioner('Does it have four legs?')
+
+def save(path, questioner):
+ with open(path, 'wb') as f:
+ pickle.dump(questioner, f, pickle.HIGHEST_PROTOCOL)
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@@ -1,86 +1,8 @@ #!/usr/bin/env python
-class Determiner(object):
- def __init__(self, questioner, question, true_question, false_question):
- self.questioner = questioner
- self.question = question
- self.true_question = true_question
- self.false_question = false_question
+from brain import load, save
- def ask(self):
- if ask(self.question):
- self.questioner.advance_yes()
- else:
- self.questioner.advance_no()
-
-
-class Thing(object):
- def __init__(self, questioner, what):
- self.questioner = questioner
- self.what = what
-
- def ask(self):
- if ask('Are you thinking of a %s?' % self.what):
- self.questioner.mark_succeeded()
- else:
- self.questioner.mark_failed()
-
-
-class Questioner(object):
- def __init__(self, database):
- self.root = Determiner(self, 'Does it have four legs?', None, None)
-
- def start(self):
- self.current_question = self.root
- self._solved = False
- self._failed = False
-
- def next_question(self):
- return self.current_question
-
- def advance_yes(self):
- self.last_branch = True
- self.last_question = self.current_question
- self.current_question = self.current_question.true_question
-
- def advance_no(self):
- self.last_branch = False
- self.last_question = self.current_question
- self.current_question = self.current_question.false_question
-
- def out_of_ideas(self):
- return self.current_question is None or self._failed
-
- def solved(self):
- return self._solved
-
- def learn_thing_and_question(self, question, thing):
- true_answer = Thing(self, thing)
- false_answer = self.last_question.true_question
- new_question = Determiner(self, question, true_answer, false_answer)
- if self.last_branch == True:
- self.last_question.true_question = new_question
- else:
- self.last_question.false_question = new_question
-
- def learn_thing(self, thing):
- new_thing = Thing(self, thing)
- if self.last_branch == True:
- self.last_question.true_question = new_thing
- else:
- self.last_question.false_question = new_thing
-
- def needs_clarification(self):
- return self.current_question is not None
-
- def mark_succeeded(self):
- self._solved = True
-
- def mark_failed(self):
- self._failed = True
-
- def best_guess(self):
- return self.current_question.what
+BRAIN_DB = 'brain.db'
def ask(question):
while True:
@@ -94,7 +16,7 @@ print 'Please type "yes" or "no"'
def play():
- questioner = Questioner('questions.db')
+ questioner = load(BRAIN_DB)
questioner.start()
while True:
question = questioner.next_question()
@@ -104,6 +26,7 @@ if ask('Play again? '):
questioner.start()
else:
+ save(BRAIN_DB, questioner)
exit()
else:
if questioner.out_of_ideas():
@@ -118,6 +41,7 @@ if ask('Play again?'):
questioner.start()
else:
+ save(BRAIN_DB, questioner)
exit()
if __name__ == '__main__':
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