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import random
from transitions import Machine
class MathSubtractionFSM(object):
states = [
'quiz_start',
'quiz_question',
'quiz_end'
]
transitions = [
['ask_second_question', 'quiz_start', 'quiz_question'],
['ask_next_question', 'quiz_question', 'quiz_question'],
['exit', 'quiz_start', 'quiz_end'],
['exit', 'quiz_question', 'quiz_end'],
]
def __init__(
self,
initial_state='quiz_start',
question_nums=[4, 3],
initial_student_answer=0,
):
# Instantiate the FSM
self.machine = Machine(
model=self,
states=MathSubtractionFSM.states,
transitions=MathSubtractionFSM.transitions,
initial=initial_state
)
# Instantiate variables necessary for tracking activity
self.question_nums = question_nums
self.correct_answer = self.question_nums[0] - self.question_nums[1]
self.student_answer = initial_student_answer
self.is_correct_answer = False
self.response_text = f"What is {self.question_nums[0]} - {self.question_nums[1]}?"
# Define functions to run on transitions
self.machine.on_enter_quiz_question('generate_math_problem')
self.machine.on_exit_quiz_question('validate_answer')
def validate_answer(self):
if self.student_answer == 'exit':
self.machine.set_state('quiz_end')
return ["Come back any time!"]
elif self.correct_answer == self.student_answer:
self.machine.set_state('quiz_question')
self.generate_math_problem()
return ['Great job!', self.response_text]
else:
return ["That's not quite right. Try again.", self.response_text]
def generate_math_problem(self):
self.question_nums = random.sample(range(1, 100), 2)
self.response_text = f"What is {self.question_nums[0]} - {self.question_nums[1]}"
self.correct_answer = self.question_nums[0] - self.question_nums[1] |