Flappy Bird

import pygame
import sys
import random

# Initialize Pygame
pygame.init()

# Constants
WIDTH, HEIGHT = 400, 600
GROUND_HEIGHT = 100
BIRD_WIDTH, BIRD_HEIGHT = 40, 40
PIPE_WIDTH = 80
PIPE_GAP = 200
PIPE_VELOCITY = 5
BIRD_GRAVITY = 1
BIRD_JUMP = -15
FPS = 30

# Colors
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)

# Create the screen
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Flappy Bird")

# Load game assets
bird_image = pygame.image.load("/home/nandanv/vscode/CSP/images/flappy.png")
bird_image = pygame.transform.scale(bird_image, (BIRD_WIDTH, BIRD_HEIGHT))
pipe_image = pygame.image.load("/home/nandanv/vscode/CSP/images/pipe.png")
pipe_image = pygame.transform.scale(pipe_image, (PIPE_WIDTH, HEIGHT - GROUND_HEIGHT))
ground_image = pygame.Surface((WIDTH, GROUND_HEIGHT))
ground_image.fill(GREEN)

# Initialize game variables
bird_x = 100
bird_y = (HEIGHT - GROUND_HEIGHT) // 2
bird_velocity = 0
pipes = []

# Game loop
clock = pygame.time.Clock()
score = 0

while True:
    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_SPACE:
                bird_velocity = BIRD_JUMP

    # Update bird position and velocity
    bird_y += bird_velocity
    bird_velocity += BIRD_GRAVITY

    # Spawn pipes
    if len(pipes) == 0 or pipes[-1][0] < WIDTH - 200:
        pipe_height = random.randint(100, HEIGHT - GROUND_HEIGHT - 200)
        pipes.append([WIDTH, pipe_height])

    # Move pipes
    for pipe in pipes:
        pipe[0] -= PIPE_VELOCITY

    # Remove off-screen pipes
    pipes = [pipe for pipe in pipes if pipe[0] > -PIPE_WIDTH]

    # Check for collisions
    bird_rect = pygame.Rect(bird_x, bird_y, BIRD_WIDTH, BIRD_HEIGHT)
    for pipe in pipes:
        pipe_rect = pygame.Rect(pipe[0], 0, PIPE_WIDTH, pipe[1])  # Upper pipe
        if bird_rect.colliderect(pipe_rect):
            pygame.quit()
            sys.exit()

        pipe_rect = pygame.Rect(pipe[0], pipe[1] + PIPE_GAP, PIPE_WIDTH, HEIGHT - GROUND_HEIGHT - pipe[1] - PIPE_GAP)  # Lower pipe
        if bird_rect.colliderect(pipe_rect):
            pygame.quit()
            sys.exit()

    # Check for ground collision
    if bird_y + BIRD_HEIGHT > HEIGHT - GROUND_HEIGHT:
        pygame.quit()
        sys.exit()

    # Update score
    for pipe in pipes:
        if pipe[0] + PIPE_WIDTH < bird_x and not pipe[2]:
            score += 1
            pipe[2] = True

    # Draw everything
    screen.fill(WHITE)
    screen.blit(ground_image, (0, HEIGHT - GROUND_HEIGHT))
    for pipe in pipes:
        screen.blit(pipe_image, (pipe[0], 0))
        screen.blit(pygame.transform.flip(pipe_image, False, True), (pipe[0], pipe[1] + PIPE_GAP))
    screen.blit(bird_image, (bird_x, bird_y))

    # Display the score
    font =  pygame.font.Font(None, 36)
    text = font.render(f"Score: {score}", True, (0, 0, 0))
    screen.blit(text, (10, 10))

    pygame.display.flip()

    # Cap the frame rate
    clock.tick(FPS)

---------------------------------------------------------------------------

IndexError                                Traceback (most recent call last)

/tmp/ipykernel_19505/2712895009.py in <module>
     88     # Update score
     89     for pipe in pipes:
---> 90         if pipe[0] + PIPE_WIDTH < bird_x and not pipe[2]:
     91             score += 1
     92             pipe[2] = True


IndexError: list index out of range

Flappy Bird • 6 min read

Description