Snake Game project using Python

This is mini project using pygame module know as Snake Game.

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Inspiration

To try game building, to explore as a python enthusiast

What it does

It is fun game build using pygame module

How we built it

Using pygame module of python language

Challenges we ran into

The pygame module is new for me, so it take time to understand the functionality

Accomplishments that we're proud of

Successfully built the game

What we learned

Learn about syntax and uses of pygame module

What's next for Snake Game project using Python

To build more interesting games.

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Updates

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Snake Game using Pygame Module in Python3

importing libraries

import pygame import time import random

snake_speed = 15

Window size

window_x = 720 window_y = 480

defining colors

black = pygame.Color(0, 0, 0) white = pygame.Color(255, 255, 255) red = pygame.Color(255, 0, 0) green = pygame.Color(0, 255, 0) blue = pygame.Color(0, 0, 255)

Initialising pygame

pygame.init()

Initialise game window

pygame.display.set_caption('GeeksforGeeks Snakes') game_window = pygame.display.set_mode((window_x, window_y))

FPS (frames per second) controller

fps = pygame.time.Clock()

defining snake default position

snake_position = [100, 50]

defining first 4 blocks of snake body

snake_body = [[100, 50], [90, 50], [80, 50], [70, 50] ]

fruit position

fruit_position = [random.randrange(1, (window_x//10)) * 10, random.randrange(1, (window_y//10)) * 10]

fruit_spawn = True

setting default snake direction towards

right

direction = 'RIGHT' change_to = direction

initial score

score = 0

displaying Score function

def show_score(choice, color, font, size):

# creating font object score_font
score_font = pygame.font.SysFont(font, size)

# create the display surface object
# score_surface
score_surface = score_font.render('Score : ' + str(score), True, color)

# create a rectangular object for the text
# surface object
score_rect = score_surface.get_rect()

# displaying text
game_window.blit(score_surface, score_rect)

game over function

def game_over():

# creating font object my_font
my_font = pygame.font.SysFont('times new roman', 50)

# creating a text surface on which text
# will be drawn
game_over_surface = my_font.render(
    'Your Score is : ' + str(score), True, red)

# create a rectangular object for the text
# surface object
game_over_rect = game_over_surface.get_rect()

# setting position of the text
game_over_rect.midtop = (window_x/2, window_y/4)

# blit will draw the text on screen
game_window.blit(game_over_surface, game_over_rect)
pygame.display.flip()

# after 2 seconds we will quit the program
time.sleep(2)

# deactivating pygame library
pygame.quit()

# quit the program
quit()

Main Function

while True:

# handling key events
for event in pygame.event.get():
    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_UP:
            change_to = 'UP'
        if event.key == pygame.K_DOWN:
            change_to = 'DOWN'
        if event.key == pygame.K_LEFT:
            change_to = 'LEFT'
        if event.key == pygame.K_RIGHT:
            change_to = 'RIGHT'

# If two keys pressed simultaneously
# we don't want snake to move into two
# directions simultaneously
if change_to == 'UP' and direction != 'DOWN':
    direction = 'UP'
if change_to == 'DOWN' and direction != 'UP':
    direction = 'DOWN'
if change_to == 'LEFT' and direction != 'RIGHT':
    direction = 'LEFT'
if change_to == 'RIGHT' and direction != 'LEFT':
    direction = 'RIGHT'

# Moving the snake
if direction == 'UP':
    snake_position[1] -= 10
if direction == 'DOWN':
    snake_position[1] += 10
if direction == 'LEFT':
    snake_position[0] -= 10
if direction == 'RIGHT':
    snake_position[0] += 10

# Snake body growing mechanism
# if fruits and snakes collide then scores
# will be incremented by 10
snake_body.insert(0, list(snake_position))
if snake_position[0] == fruit_position[0] and snake_position[1] == fruit_position[1]:
    score += 10
    fruit_spawn = False
else:
    snake_body.pop()

if not fruit_spawn:
    fruit_position = [random.randrange(1, (window_x//10)) * 10,
                      random.randrange(1, (window_y//10)) * 10]

fruit_spawn = True
game_window.fill(black)

for pos in snake_body:
    pygame.draw.rect(game_window, green,
                     pygame.Rect(pos[0], pos[1], 10, 10))
pygame.draw.rect(game_window, white, pygame.Rect(
    fruit_position[0], fruit_position[1], 10, 10))

# Game Over conditions
if snake_position[0] < 0 or snake_position[0] > window_x-10:
    game_over()
if snake_position[1] < 0 or snake_position[1] > window_y-10:
    game_over()

# Touching the snake body
for block in snake_body[1:]:
    if snake_position[0] == block[0] and snake_position[1] == block[1]:
        game_over()

# displaying score countinuously
show_score(1, white, 'times new roman', 20)

# Refresh game screen
pygame.display.update()

# Frame Per Second /Refresh Rate
fps.tick(snake_speed)

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