Namasudra: Adding a Paddle to Bouncing Ball

In the previous post we created the Bouncing Ball example. We will be adding a paddle to the Bouncing Ball example here, so that we can make it a bit interactive to play with. I have changed the title from Bouncing Ball to Paddle Ball. I have also changed the screen size to have more room to play. The images for the icon, ball and the paddle are given below the code. You can download them and put them in the same folder where you save the code.

Code:

	import sys, pygame

	pygame.init()

	# Screen and Window setup
	screen_size = screen_width, screen_height = 600, 600
	logo = pygame.image.load("logo32x32.png")
	pygame.display.set_icon(logo)
	pygame.display.set_caption("Paddle Ball")
	screen = pygame.display.set_mode(screen_size)
	black = (0, 0, 0)

	# Ball setup
	ball = pygame.image.load("ball.png")
	ball_rect = ball.get_rect()
	ball_rect = ball_rect.move(290, 550)
	ball_speed = [1, 1]

	# Paddle setup
	paddle = pygame.image.load("paddle.png")
	paddle_rect = paddle.get_rect()
	paddle_rect = paddle_rect.move(225, 570)
	paddle_speed = 1

	# Game Loop
	while True:
	# Exit program
	for event in pygame.event.get():
	if event.type == pygame.QUIT:
	pygame.quit()
	sys.exit()

	# Ball update
	ball_rect = ball_rect.move(ball_speed)
	if ball_rect.left < 0 or ball_rect.right > screen_width:
	ball_speed[0] = -ball_speed[0]
	if ball_rect.top < 0 or ball_rect.bottom > screen_height:
	ball_speed[1] = -ball_speed[1]

	# Paddle update
	keys = pygame.key.get_pressed()
	if keys[pygame.K_LEFT]:
	paddle_rect = paddle_rect.move([-paddle_speed, 0])
	if keys[pygame.K_RIGHT]:
	paddle_rect = paddle_rect.move([paddle_speed, 0])

	# Collision with paddle
	if paddle_rect.colliderect(ball_rect):
	ball_speed[1] = -ball_speed[1]

	# Screen update
	screen.fill(black)
	screen.blit(ball, ball_rect)
	screen.blit(paddle, paddle_rect)
	pygame.display.flip()