Pong (marketed as PONG) is one of the earliest arcade video games; it is a tennis sports game featuring simple two-dimensional graphics. While other arcade video games such as Computer Space came before it,Pong was one of the first video games to reach mainstream popularity. The aim is to defeat the opponent in a simulated table tennis game by earning a higher score. The game was originally manufactured by Atari Incorporated (Atari), who released it in 1972. Allan Alcorn created Pong as a training exercise assigned to him by Atari co-founder Nolan Bushnell. Bushnell based the idea on an electronic ping-pong game included in the Magnavox Odyssey, which later resulted in a lawsuit against Atari. Surprised by the quality of Alcorn's work, Bushnell and Dabney decided to manufacture the game.Pong quickly became a success and is the first commercially successful video game, which led to the start of the video game industry. Soon after its release, several companies began producing games that copied Pong's game-play and eventually released new types of games. As a result, Atari encouraged its staff to produce more innovative games. The company released several sequels that built upon the original's game-play by adding new features. During the 1975 Christmas season, Atari released a home version of Pong exclusively through Sears retail stores. It was also a commercial success and led to numerous copies. The game has been remade on numerous home and portable platforms following its release. Pong has been referenced and parodied in multiple television shows and video games, and has been a part of several video game and cultural exhibitions.
The following Pong game code is written in Python and uses pygame module.....
Download Pong game source code and game demo
#PONG pygame
import random
import pygame, sys
from pygame.locals import *
pygame.init()
fps = pygame.time.Clock()
#colors
WHITE = (255,255,255)
RED = (255,0,0)
GREEN = (0,255,0)
BLACK = (0,0,0)
#globals
WIDTH = 600
HEIGHT = 400
BALL_RADIUS = 20
PAD_WIDTH = 8
PAD_HEIGHT = 80
HALF_PAD_WIDTH = PAD_WIDTH / 2
HALF_PAD_HEIGHT = PAD_HEIGHT / 2
ball_pos = [0,0]
ball_vel = [0,0]
paddle1_vel = 0
paddle2_vel = 0
l_score = 0
r_score = 0
#canvas declaration
window = pygame.display.set_mode((WIDTH, HEIGHT), 0, 32)
pygame.display.set_caption('Hello World')
# helper function that spawns a ball, returns a position vector and a velocity vector
# if right is True, spawn to the right, else spawn to the left
def ball_init(right):
global ball_pos, ball_vel # these are vectors stored as lists
ball_pos = [WIDTH/2,HEIGHT/2]
horz = random.randrange(2,4)
vert = random.randrange(1,3)
if right == False:
horz = - horz
ball_vel = [horz,-vert]
# define event handlers
def init():
global paddle1_pos, paddle2_pos, paddle1_vel, paddle2_vel,l_score,r_score # these are floats
global score1, score2 # these are ints
paddle1_pos = [HALF_PAD_WIDTH - 1,HEIGHT/2]
paddle2_pos = [WIDTH +1 - HALF_PAD_WIDTH,HEIGHT/2]
l_score = 0
r_score = 0
if random.randrange(0,2) == 0:
ball_init(True)
else:
ball_init(False)
#draw function of canvas
def draw(canvas):
global paddle1_pos, paddle2_pos, ball_pos, ball_vel, l_score, r_score
canvas.fill(BLACK)
pygame.draw.line(canvas, WHITE, [WIDTH / 2, 0],[WIDTH / 2, HEIGHT], 1)
pygame.draw.line(canvas, WHITE, [PAD_WIDTH, 0],[PAD_WIDTH, HEIGHT], 1)
pygame.draw.line(canvas, WHITE, [WIDTH - PAD_WIDTH, 0],[WIDTH - PAD_WIDTH, HEIGHT], 1)
pygame.draw.circle(canvas, WHITE, [WIDTH//2, HEIGHT//2], 70, 1)
# update paddle's vertical position, keep paddle on the screen
if paddle1_pos[1] > HALF_PAD_HEIGHT and paddle1_pos[1] < HEIGHT - HALF_PAD_HEIGHT:
paddle1_pos[1] += paddle1_vel
elif paddle1_pos[1] == HALF_PAD_HEIGHT and paddle1_vel > 0:
paddle1_pos[1] += paddle1_vel
elif paddle1_pos[1] == HEIGHT - HALF_PAD_HEIGHT and paddle1_vel < 0:
paddle1_pos[1] += paddle1_vel
if paddle2_pos[1] > HALF_PAD_HEIGHT and paddle2_pos[1] < HEIGHT - HALF_PAD_HEIGHT:
paddle2_pos[1] += paddle2_vel
elif paddle2_pos[1] == HALF_PAD_HEIGHT and paddle2_vel > 0:
paddle2_pos[1] += paddle2_vel
elif paddle2_pos[1] == HEIGHT - HALF_PAD_HEIGHT and paddle2_vel < 0:
paddle2_pos[1] += paddle2_vel
#update ball
ball_pos[0] += int(ball_vel[0])
ball_pos[1] += int(ball_vel[1])
#draw paddles and ball
pygame.draw.circle(canvas, RED, ball_pos, 20, 0)
pygame.draw.polygon(canvas, GREEN, [[paddle1_pos[0] - HALF_PAD_WIDTH, paddle1_pos[1] - HALF_PAD_HEIGHT], [paddle1_pos[0] - HALF_PAD_WIDTH, paddle1_pos[1] + HALF_PAD_HEIGHT], [paddle1_pos[0] + HALF_PAD_WIDTH, paddle1_pos[1] + HALF_PAD_HEIGHT], [paddle1_pos[0] + HALF_PAD_WIDTH, paddle1_pos[1] - HALF_PAD_HEIGHT]], 0)
pygame.draw.polygon(canvas, GREEN, [[paddle2_pos[0] - HALF_PAD_WIDTH, paddle2_pos[1] - HALF_PAD_HEIGHT], [paddle2_pos[0] - HALF_PAD_WIDTH, paddle2_pos[1] + HALF_PAD_HEIGHT], [paddle2_pos[0] + HALF_PAD_WIDTH, paddle2_pos[1] + HALF_PAD_HEIGHT], [paddle2_pos[0] + HALF_PAD_WIDTH, paddle2_pos[1] - HALF_PAD_HEIGHT]], 0)
#ball collision check on top and bottom walls
if int(ball_pos[1]) <= BALL_RADIUS:
ball_vel[1] = - ball_vel[1]
if int(ball_pos[1]) >= HEIGHT + 1 - BALL_RADIUS:
ball_vel[1] = -ball_vel[1]
#ball collison check on gutters or paddles
if int(ball_pos[0]) <= BALL_RADIUS + PAD_WIDTH and int(ball_pos[1]) in range(paddle1_pos[1] - HALF_PAD_HEIGHT,paddle1_pos[1] + HALF_PAD_HEIGHT,1):
ball_vel[0] = -ball_vel[0]
ball_vel[0] *= 1.1
ball_vel[1] *= 1.1
elif int(ball_pos[0]) <= BALL_RADIUS + PAD_WIDTH:
r_score += 1
ball_init(True)
if int(ball_pos[0]) >= WIDTH + 1 - BALL_RADIUS - PAD_WIDTH and int(ball_pos[1]) in range(paddle2_pos[1] - HALF_PAD_HEIGHT,paddle2_pos[1] + HALF_PAD_HEIGHT,1):
ball_vel[0] = -ball_vel[0]
ball_vel[0] *= 1.1
ball_vel[1] *= 1.1
elif int(ball_pos[0]) >= WIDTH + 1 - BALL_RADIUS - PAD_WIDTH:
l_score += 1
ball_init(False)
#update scores
myfont1 = pygame.font.SysFont("Comic Sans MS", 20)
label1 = myfont1.render("Score "+str(l_score), 1, (255,255,0))
canvas.blit(label1, (50,20))
myfont2 = pygame.font.SysFont("Comic Sans MS", 20)
label2 = myfont2.render("Score "+str(r_score), 1, (255,255,0))
canvas.blit(label2, (470, 20))
#keydown handler
def keydown(event):
global paddle1_vel, paddle2_vel
if event.key == K_UP:
paddle2_vel = -8
elif event.key == K_DOWN:
paddle2_vel = 8
elif event.key == K_w:
paddle1_vel = -8
elif event.key == K_s:
paddle1_vel = 8
#keyup handler
def keyup(event):
global paddle1_vel, paddle2_vel
if event.key in (K_w, K_s):
paddle1_vel = 0
elif event.key in (K_UP, K_DOWN):
paddle2_vel = 0
init()
#game loop
while True:
draw(window)
for event in pygame.event.get():
if event.type == KEYDOWN:
keydown(event)
elif event.type == KEYUP:
keyup(event)
elif event.type == QUIT:
pygame.quit()
sys.exit()
pygame.display.update()
fps.tick(60)