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cse2050-honors-spring2024/pong.py
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# This codebase was originally posted alongside this YouTube video: | |
# https://www.youtube.com/watch?v=5NkTzvMchMw | |
# hi, folks! | |
# another comment | |
import pygame, sys, random | |
class PongBall(pygame.Rect): | |
def __init__(self, left, top, height, width): | |
super().__init__(left, top, height, width) | |
def set_center(self, x, y): | |
self.center = (x, y) | |
def reset_ball(): | |
global ball_speed_x, ball_speed_y | |
ball.x = screen_width/2 - 10 | |
ball.y = random.randint(10,100) | |
ball_speed_x *= random.choice([-1,1]) | |
ball_speed_y *= random.choice([-1,1]) | |
def point_won(winner): | |
global cpu_points, player_points | |
if winner == "cpu": | |
cpu_points += 1 | |
if winner == "player": | |
player_points += 1 | |
reset_ball() | |
def animate_ball(): | |
global ball_speed_x, ball_speed_y | |
ball.x += ball_speed_x | |
ball.y += ball_speed_y | |
if ball.bottom >= screen_height or ball.top <= 0: | |
ball_speed_y *= -1 | |
if ball.right >= screen_width: | |
point_won("cpu") | |
if ball.left <= 0: | |
point_won("player") | |
if ball.colliderect(player) or ball.colliderect(cpu): | |
ball_speed_x *= -1 | |
def animate_player(): | |
player.y += player_speed | |
if player.top <= 0: | |
player.top = 0 | |
if player.bottom >= screen_height: | |
player.bottom = screen_height | |
def animate_cpu(): | |
global cpu_speed | |
cpu.y += cpu_speed / 1.2 | |
if ball.centery <= cpu.centery: | |
cpu_speed = -6 | |
if ball.centery >= cpu.centery: | |
cpu_speed = 6 | |
if cpu.top <= 0: | |
cpu.top = 0 | |
if cpu.bottom >= screen_height: | |
cpu.bottom = screen_height | |
pygame.init() | |
screen_width = 1280 | |
screen_height = 800 | |
screen = pygame.display.set_mode((screen_width, screen_height)) | |
pygame.display.set_caption("My Pong Game!") | |
clock = pygame.time.Clock() | |
ball = PongBall(0, 0, 30, 30) | |
ball.set_center(screen_width/2, screen_height/2) | |
cpu = pygame.Rect(0,0,20,100) | |
cpu.centery = screen_height/2 | |
player = pygame.Rect(0,0,20,100) | |
player.midright = (screen_width, screen_height/2) | |
ball_speed_x = 6 | |
ball_speed_y = 6 | |
player_speed = 0 | |
cpu_speed = 6 | |
cpu_points, player_points = 0, 0 | |
score_font = pygame.font.Font(None, 100) | |
while True: | |
#Check for events | |
for event in pygame.event.get(): | |
if event.type == pygame.QUIT: | |
pygame.quit() | |
sys.exit() | |
if event.type == pygame.KEYDOWN: | |
if event.key == pygame.K_UP: | |
player_speed = -6 | |
if event.key == pygame.K_DOWN: | |
player_speed = 6 | |
if event.type == pygame.KEYUP: | |
if event.key == pygame.K_UP: | |
player_speed = 0 | |
if event.key == pygame.K_DOWN: | |
player_speed = 0 | |
#Change the positions of the game objects | |
animate_ball() | |
animate_player() | |
animate_cpu() | |
#Clear the screen | |
screen.fill('black') | |
#Draw the score | |
cpu_score_surface = score_font.render(str(cpu_points), True, "white") | |
player_score_surface = score_font.render(str(player_points), True, "white") | |
screen.blit(cpu_score_surface,(screen_width/4,20)) | |
screen.blit(player_score_surface,(3*screen_width/4,20)) | |
#Draw the game objects | |
pygame.draw.aaline(screen,'white',(screen_width/2, 0), (screen_width/2, screen_height)) | |
pygame.draw.ellipse(screen,'white',ball) | |
pygame.draw.rect(screen,'white',cpu) | |
pygame.draw.rect(screen,'white',player) | |
#Update the display | |
pygame.display.update() | |
clock.tick(60) |