【Pygame】楕円を描画する

draw.ellipseメソッドでウィンドウに楕円を描画する。

import pygame
from pygame.locals import *
import sys

BLACK = (0, 0, 0)
WHITE = (255,255,255)
size = (640, 480)
width, height = size
board_w, board_h = 450, 450
space_w, space_h = (width-board_w)/2, (height-board_h)/2
cell_space = 5

pygame.init()
screen = pygame.display.set_mode(size)
pygame.display.set_caption("Maze")

while True:
  screen.fill(BLACK)
  pygame.draw.rect(screen,WHITE,(space_w,space_h,board_w,board_h),1)
  for y in range(1, 3):
    pygame.draw.line(screen,WHITE,(space_w,y*(board_h/3)+space_h),(width-space_w-1,y*(board_h/3)+space_h))
  for x in range(1, 3):
    pygame.draw.line(screen,WHITE,(x*(board_w/3)+space_w,space_h),(x*(board_w/3)+space_w,height-space_h-1))
  pygame.draw.ellipse(screen,(255,255,255),((board_w/3)+space_w+cell_space,(board_h/3)+space_h+cell_space,(board_w/3)-(cell_space*2),(board_h/3)-(cell_space*2)))
  pygame.display.update()
  for event in pygame.event.get():
    if event.type == QUIT:
      pygame.quit()
      sys.exit()

参考

draw - Pygameドキュメント日本語訳