import tkinter as tk
from random import randint
import math
class ModQuiz:
def __init__(self, root):
self.root = root
self.root.title("Modulo Quiz")
self.ctr, self.num, self.den = 0, 0, 0
self.question_label = tk.Label(root, text="", font=("Arial", 14, "bold"))
self.question_label.pack(pady=10)
self.answer_entry = tk.Entry(root, font=("Arial", 14, "bold"))
self.answer_entry.pack(pady=5)
self.answer_entry.bind("<Return>", lambda e: self.check_and_next())
self.check_button = tk.Button(root, text="Check Answer", command=self.check_and_next, font=("Arial", 12, "bold"))
self.check_button.pack(pady=5)
self.result_label = tk.Label(root, text="", font=("Arial", 12, "bold"))
self.result_label.pack(pady=5)
self.score_label = tk.Label(root, text="Score: 0", font=("Arial", 12, "bold"))
self.score_label.pack(pady=5)
self.canvas = tk.Canvas(root, width=400, height=400, bg="white", highlightthickness=0)
self.canvas.pack(pady=8)
self.quit_button = tk.Button(root, text="Quit", command=root.destroy, font=("Arial", 12, "bold"))
self.quit_button.pack(pady=5)
self.ask_question()
def ask_question(self):
self.answer_entry.delete(0, tk.END)
self.result_label.config(text="")
self.num, self.den = randint(-7, 7), randint(-7, 7)
while self.den == 0:
self.den = randint(-7, 7)
self.question_label.config(text=f"What is {self.num} % {self.den}?")
self.answer_entry.focus()
self.draw_arcs(self.den)
def draw_arcs(self, den):
self.canvas.delete("all")
k = abs(den)
pad = 20
x0, y0, x1, y1 = 50, 40, 340, 340 # a little vertical space for labels
cx, cy = (x0 + x1) / 2, (y0 + y1) / 2
r = (x1 - x0) / 2 - 18
step = 360 / k
base = 90 # Base angle so that numbering starts at 12 o'clock
self.canvas.create_oval(x0, y0, x1, y1, outline="black", width=1) # Draw outer circle
for i in range(k):
if den > 0: # (b) Positive denominator: clockwise numbering 0..den-1
start = base - i * step # move clockwise by decreasing angle
extent = -step # draw clockwise
label_val = i
else: # (c) Negative denominator: anti-clockwise numbering 0, -1, -2, ..., -(k-1)
start = base + i * step # move anti-clockwise by increasing angle
extent = step # draw anti-clockwise
label_val = -i
self.canvas.create_arc(x0, y0, x1, y1, start=start, extent=extent, style=tk.ARC, width=2) # Draw arc segment
theta_deg = start # boundary angle # Place label at boundary (not middle) so 0 is exactly at 12 o’clock
theta = math.radians(theta_deg)
r_label = r # Slightly inside the circle for readability
tx = cx + r_label * math.cos(theta)
ty = cy - r_label * math.sin(theta)
tick_in = r - 12 # Small tick mark at the boundary
tick_out = r + 2
tx_in = cx + tick_in * math.cos(theta)
ty_in = cy - tick_in * math.sin(theta)
tx_out = cx + tick_out * math.cos(theta)
ty_out = cy - tick_out * math.sin(theta)
self.canvas.create_line(tx_in, ty_in, tx_out, ty_out)
tx_text = cx + (r + 40) * math.cos(theta) # Offset text a bit towards center from the boundary
ty_text = cy - (r + 40) * math.sin(theta)
self.canvas.create_text(tx_text, ty_text, text=str(label_val), font=("Arial", 12, "bold"))
def check_and_next(self):
user_ans = self.answer_entry.get()
try:
if int(user_ans) == self.num % self.den:
self.result_label.config(text="Correct!", fg="green")
self.ctr += 1
self.score_label.config(text=f"Score: {self.ctr}")
else:
self.result_label.config(text=f"Incorrect. It is {self.num % self.den}", fg="red")
except:
self.result_label.config(text="Please enter a valid integer.", fg="orange")
self.root.after(1000, self.ask_question)
root = tk.Tk()
app = ModQuiz(root)
root.mainloop()
