下記のコード
import pygame as pg, sys
pg.init()
screen = pg.display.set_mode((800, 600))
while True:
screen.fill(pg.Color("WHITE"))
# 四角形/線/円を描写する
pg.draw.rect(screen, pg.Color("RED"), (100, 100, 100, 150))
pg.draw.line(screen, pg.Color("BLUE"), (250, 100), (350, 250), 5)
pg.draw.ellipse(screen, pg.Color("GREEN"), (400, 100, 150, 150), 5)
pg.display.update()
for event in pg.event.get():
if event.type == pg.QUIT:
pg.quit()
sys.exit()
