Pygame: draw connected sequence of antialiased lines

‘pygame.draw.aalines()’ is used to draw a connected sequence of antialiased lines.

Syntax

aalines(Surface, color, closed, pointlist, blend=1)

Draws a sequence on a surface. You must pass at least two points in the sequence of points. The closed argument is a simple Boolean and if true, a line will be draw between the first and last points. The Boolean blend argument set to true will blend the shades with existing shades instead of overwriting them. This function accepts floating point values for the end points.

#import pygame
import pygame

#initialize game engine
pygame.init()

#Open a window
size = (500, 500)
screen = pygame.display.set_mode(size)

#Set title to the window
pygame.display.set_caption("Hello World")

dead=False

#Initialize values for color (RGB format)
WHITE=(255,255,255)
RED=(255,0,0)

clock = pygame.time.Clock()

while(dead==False):
 for event in pygame.event.get(): 
  if event.type == pygame.QUIT:
   dead = True
  
  screen.fill(WHITE)
  lines=[[50,50], [450, 450], [450,50], [50, 450] ]
  pygame.draw.aalines(screen, RED, True, lines, 3)
  pygame.display.flip()
  clock.tick(60)
   
#Shutdown display module
pygame.display.quit()

Run above program, you will get following output.

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