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Developing a game activity using Pygame like bouncing ball, car race etc.

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Developing a game activity using Pygame like bouncing ball, car race etc

Program

import pygame

import random

import os

pygame.mixer.init()

pygame.init()

# Colors

white = (255, 255, 255)

red = (255, 0, 0)

black = (0, 0, 0)

# Creating window

screen_width = 900

screen_height = 600

gameWindow = pygame.display.set_mode((screen_width, screen_height))

#Background Image

bgimg = pygame.image.load("sanke.jpg")

bgimg = pygame.transform.scale(bgimg, (screen_width, screen_height)).convert_alpha()

# Game Title

pygame.display.set_caption("Snake Game by goeduhub")

pygame.display.update()

clock = pygame.time.Clock()

font = pygame.font.SysFont(None, 55)

def text_screen(text, color, x, y):

    screen_text = font.render(text, True, color)

    gameWindow.blit(screen_text, [x,y])

def plot_snake(gameWindow, color, snk_list, snake_size):

    for x,y in snk_list:

        pygame.draw.rect(gameWindow, color, [x, y, snake_size, snake_size])

def welcome():

    exit_game = False

    while not exit_game:

        gameWindow.fill((233,210,229))

        text_screen("Welcome to Snakes", black, 260, 250)

        text_screen("Press Space Bar To Play", black, 232, 290)

        for event in pygame.event.get():

            if event.type == pygame.QUIT:

                exit_game = True

            if event.type == pygame.KEYDOWN:

                if event.key == pygame.K_SPACE:

                    pygame.mixer.music.load('qqq.mp3')

                    pygame.mixer.music.play()

                    gameloop()

        pygame.display.update()

        clock.tick(60)

# Game Loop

def gameloop():

    # Game specific variables

    exit_game = False

    game_over = False

    snake_x = 45

    snake_y = 55

    velocity_x = 0

    velocity_y = 0

    snk_list = []

    snk_length = 1

    # Check if hiscore file exists

    if(not os.path.exists("hiscore.txt")):

        with open("hiscore.txt", "w") as f:

            f.write("0")

    with open("hiscore.txt", "r") as f:

        hiscore = f.read()

    food_x = random.randint(20, screen_width / 2)

    food_y = random.randint(20, screen_height / 2)

    score = 0

    init_velocity = 5

    snake_size = 30

    fps = 60

    while not exit_game:

        if game_over:

            with open("hiscore.txt", "w") as f:

                f.write(str(hiscore))

            gameWindow.fill(white)

            text_screen("Game Over! Press Enter To Continue", red, 100, 250)

            for event in pygame.event.get():

                if event.type == pygame.QUIT:

                    exit_game = True

                if event.type == pygame.KEYDOWN:

                    if event.key == pygame.K_RETURN:

                        welcome()

        else:

            for event in pygame.event.get():

                if event.type == pygame.QUIT:

                    exit_game = True

                if event.type == pygame.KEYDOWN:

                    if event.key == pygame.K_RIGHT:

                        velocity_x = init_velocity

                        velocity_y = 0

                    if event.key == pygame.K_LEFT:

                        velocity_x = - init_velocity

                        velocity_y = 0

                    if event.key == pygame.K_UP:

                        velocity_y = - init_velocity

                        velocity_x = 0

                    if event.key == pygame.K_DOWN:

                        velocity_y = init_velocity

                        velocity_x = 0

                    if event.key == pygame.K_q:

                        score +=10

            snake_x = snake_x + velocity_x

            snake_y = snake_y + velocity_y

            if abs(snake_x - food_x)<20 and abs(snake_y - food_y)<20:

                score +=10

                food_x = random.randint(20, screen_width / 2)

                food_y = random.randint(20, screen_height / 2)

                snk_length +=5

            gameWindow.fill(white)

            gameWindow.blit(bgimg, (0, 0))

            text_screen("Score: " + str(score) + "  Hiscore: "+str(hiscore), red, 5, 5)

            pygame.draw.rect(gameWindow, red, [food_x, food_y, snake_size, snake_size])

            head = []

            head.append(snake_x)

            head.append(snake_y)

            snk_list.append(head)

            if len(snk_list)>snk_length:

                del snk_list[0]

            if head in snk_list[:-1]:

                game_over = True

                pygame.mixer.music.load('qqq.mp3')

                pygame.mixer.music.play()

            if snake_x<0 or snake_x>screen_width or snake_y<0 or snake_y>screen_height:

                game_over = True

                pygame.mixer.music.load('qqq.mp3')

                pygame.mixer.music.play()

            plot_snake(gameWindow, black, snk_list, snake_size)

        pygame.display.update()

        clock.tick(fps)

    pygame.quit()

    quit()

welcome() 

  Output

image1

image 2


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