Snake Game

Programe:-

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import pygame

import random

# initializing pygame

pygame.init()

# Colors

white = (255, 255, 255) # rgb format

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))

# Game Title

pygame.display.set_caption("Coders Home")

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])

# Game Loop

def gameloop():

    exit_game = False

    game_over = False

    snake_x = 45

    snake_y = 55

    velocity_x = 0

    velocity_y = 0

    snk_list = []

    snk_length = 1

    food_x = random.randint(20, screen_width-20)

    food_y = random.randint(60, screen_height -20)

    score = 0

    init_velocity = 4

    snake_size = 30

    fps = 60   # fps = frames per second

    while not exit_game:

        if game_over:

            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:

                        gameloop()

        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

            snake_x = snake_x + velocity_x

            snake_y = snake_y + velocity_y

            if abs(snake_x - food_x)<10 and abs(snake_y - food_y)<10:

                score +=1

                food_x = random.randint(20, screen_width - 30)

                food_y = random.randint(60, screen_height - 30)

                snk_length +=5

            gameWindow.fill(white)

            text_screen("Score: " + str(score * 10), red, 5, 5)

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

            pygame.draw.line(gameWindow, red, (0,40), (900,40),5)

            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

            if snake_x<0 or snake_x>screen_width-20 or snake_y<50 or snake_y>screen_height-20:

                game_over = True

            plot_snake(gameWindow, black, snk_list, snake_size)

        pygame.display.update()

        clock.tick(fps)

    pygame.quit()

    quit()

gameloop()

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Output:-