163 lines
4.1 KiB
Python
163 lines
4.1 KiB
Python
import random
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from math import gcd, lcm
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import xml.etree.ElementTree as ET
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from collections import Counter
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# Konstanten
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# Anzahl der zu generierenden Fragen.
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NUM_QUESTIONS = 1
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# Algebraische Struktur der Aufgaben
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STRUCTURE = "-(+)"
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# TODO
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# Platzhalter hinzufügen
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# Anzahl der benötigten Brüche
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NUM_FRACTIONS = 1 + STRUCTURE.count("+") + STRUCTURE.count("+") + STRUCTURE.count("*") + STRUCTURE.count("/")
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# Größter Zähler
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MAX_NUMERATOR = 20
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# Größter Nenner
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MAX_DENOMINATOR = 20
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# Größter erlaubter gemeinsamer Nenner
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MAX_COMMON_DENOMINATOR = 100
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# Dateiname für Ausgabe
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FILENAME = 'formulas_new_quiz.xml'
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def create_formula_question(n):
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numerators = []
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denominators = []
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for i in range(NUM_FRACTIONS):
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n = random.randint(1, MAX_NUMERATOR)
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d = random.randint(2, MAX_DENOMINATOR)
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numerators.append(n)
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denominators.append(d)
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# Sicherstellen, dass die Nenner unterschiedlich sind
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same_denominators = [k for k,v in Counter(denominators).items() if v>1]
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while len(same_denominators) > 1:
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new_denom = random.randint(2, MAX_DENOMINATOR)
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denominators.replace(same_denominators[0], new_denom)
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same_denominators = [k for k,v in Counter(denominators).items() if v>1]
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# [DEBUG]
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print(numerators)
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print(denominators)
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# [DEBUG]
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*denoms_integers, = denominators
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common_denominator = lcm(*denoms_integers)
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fractions = []
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for i in range(NUM_FRACTIONS):
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fraction = {"n": numerators[i], "d": denominators[i]}
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fractions.append(fraction)
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# [DEBUG]
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print(fractions)
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# [DEBUG]
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cd = common_denominator
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expanded_numerators = [frac["n"] * cd // frac["d"] for frac in fractions]
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expanded_fractions = []
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for i in range(NUM_FRACTIONS):
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fraction = {"n": expanded_numerators[i], "d": cd}
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expanded_fractions.append(fraction)
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# [DEBUG]
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print(expanded_fractions)
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# [DEBUG]
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eval_string = f"{expanded_numerators[0]}"
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cnt_next_fraction = 1
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for c in STRUCTURE:
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if c == "(" or c ==")":
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eval_string += c
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elif c == "+" or c == "-" or c == "*" or c == "/":
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eval_string += c
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eval_string += f"{expanded_numerators[cnt_next_fraction]}"
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cnt_next_fraction += 1
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# [DEBUG]
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print(eval_string)
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# [DEBUG]
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result_numerator = eval(eval_string)
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question = ET.Element('question', attrib={'type': 'formulas'})
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return question
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def generate_questions(num_questions):
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"""
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Generiert eine Liste von Aufgaben.
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Args:
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num_questions (int): Die Anzahl der zu generierenden Fragen.
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Returns:
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list: Eine Liste von Frage-Elementen.
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"""
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questions = []
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for i in range(num_questions):
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# Hier können Sie die Funktionsdefinition für die Erzeugung einer Aufgabe hinzufügen
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questions.append(create_formula_question(i))
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return questions
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def create_quiz(questions):
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"""
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Erstellt das gesamte Quiz-Element.
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Args:
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questions (list): Eine Liste von Frage-Elementen.
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Returns:
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Element: Das gesamte Quiz -Element.
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"""
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quiz = ET.Element('quiz')
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for q in questions:
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quiz.append(q)
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return quiz
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def save_to_file(xml_element, filename):
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"""
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Speichert das XML-Dokument in eine Datei.
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Args:
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xml_element (Element): Das XML-Element, zu speichern.
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filename (str): Der Name der Zieldatei.
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Returns:
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None
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"""
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tree = ET.ElementTree(xml_element)
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with open(filename, 'wb') as f:
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tree.write(f, encoding='utf_8', xml_declaration=True)
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return
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def replace_vars2(xml_file):
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# XML-Datei lesen
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with open(xml_file, 'r') as f:
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text = f.read()
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text = text.replace("&","&")
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text = text.replace("<","<")
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text = text.replace(">",">")
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with open(xml_file, 'w') as f:
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f.write(text)
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# Hauptprogramm
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if __name__ == "__main__":
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questions = generate_questions(NUM_QUESTIONS)
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quiz = create_quiz(questions)
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save_to_file(quiz, FILENAME)
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replace_vars2(FILENAME)
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print("Moodle-XMLDatei erfolgreich erstellt.")
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