[PyGame] boilerplate

[nilamo]

Boilerplate is the basic code you need in order for something to work.  The bare minimum, with a little added on top to help you understand how to use it.  Anytime you start a new script, boilerplate code is what you start with, and you make your modifications based upon that.

Here's my version of pygame boilerplate.  There's some setup and teardown, and also a basic surface is added to demonstrate how drawing works, and how to blit things to the screen.

import pygame

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
RED = (255, 0, 0)

# initialize pygame
pygame.init()
screen_size = (700, 500)

# create a window
screen = pygame.display.set_mode(screen_size)
pygame.display.set_caption("pygame Test")

# clock is used to set a max fps
clock = pygame.time.Clock()

# create a demo surface, and draw a red line diagonally across it
surface_size = (25, 45)
test_surface = pygame.Surface(surface_size)
test_surface.fill(WHITE)
pygame.draw.aaline(test_surface, RED, (0, surface_size[1]), (surface_size[0], 0))

running = True
while running:
	for event in pygame.event.get():
		if event.type == pygame.QUIT:
			running = False
	
	#clear the screen
	screen.fill(BLACK)
	
	# draw to the screen
	# YOUR CODE HERE
	x = (screen_size[0]/2) - (surface_size[0]/2)
	y = (screen_size[1]/2) - (surface_size[1]/2)
	screen.blit(test_surface, (x, y))

	# flip() updates the screen to make our changes visible
	pygame.display.flip()
	
	# how many updates per second
	clock.tick(60)

pygame.quit()

If you run it, you'll see this (click for full size):