Creating a bold line in pygame

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Hello I'm creating a sudoku game in pygame and while making the board I wanted to make all lines black but some thicker than others like so:

sudoku board

Do any of you know of a way to do this?

pygame python
1 Answers

The last argument of pygame.draw.line is optional and specifies the thickness of the line:

draw a straight line

line(surface, color, start_pos, end_pos, width=1) -> Rect

...
width (int) -- (optional) used for line thickness

Minimal example:

import pygame

pygame.init()
window = pygame.display.set_mode((400, 400))
clock = pygame.time.Clock()

run = True
while run:
    clock.tick(100)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False 

    window.fill((255, 255, 255))
    for i in range(10):
        w = 3 if i == 3 or i == 6 else 1
        pygame.draw.line(window, (0, 0, 0), (50, 50+i*30), (320, 50+i*30), w)
        pygame.draw.line(window, (0, 0, 0), (50+i*30, 50), (50+i*30, 320), w)
    pygame.display.flip()

pygame.quit()
exit()
user_55777650
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