python code for snake game | easy python code for snake game using pygame

                         python code 

                     for snake game

 For the python beginners, those who are interested in making games should definitely try this out and the module PYGAME was specially  built for this purpose.  This programme will be done in PYTHON 3

so first open your terminal of ide or go command prompt in windows and write:

"pip install pygame"

then you will see messages like that

now write the following code given below:

• Python 3

# importing module import pygame import sys import copy import random import time pygame.init() # creating game specific variable width = 500 height = 500 scale = 10 score = 0 width = 500 height = 500 scale = 10 score = 0 food_x = 10 food_y = 10 #creating a window for game display = pygame.display.set_mode((width, height)) pygame.display.set_caption("Snake Game") clock = pygame.time.Clock() background = (23, 32, 42) snake_colour = (236, 240, 241) food_colour = (148, 49, 38) snake_head = (247, 220, 111) # ----------- Snake Class ---------------- class Snake: def __init__(self, x_start, y_start): self.x = x_start self.y = y_start self.w = 10 self.h = 10 self.x_dir = 1 self.y_dir = 0 self.history = [[self.x, self.y]] self.length = 1 def reset(self): self.x = width/2-scale self.y = height/2-scale self.w = 10 self.h = 10 self.x_dir = 1 self.y_dir = 0 self.history = [[self.x, self.y]] self.length = 1 def show(self): for i in range(self.length): if not i == 0: pygame.draw.rect(display, snake_colour, (self.history[i][0], self.history[i][1], self.w, self.h)) else: pygame.draw.rect(display, snake_head, (self.history[i][0], self.history[i][1], self.w, self.h)) def check_eaten(self): if abs(self.history[0][0] - food_x) < scale and abs(self.history[0][1] - food_y) < scale: return True def grow(self): self.length += 1 self.history.append(self.history[self.length-2]) def death(self): i = self.length - 1 while i > 0: if abs(self.history[0][0] - self.history[i][0]) < self.w and abs(self.history[0][1] - self.history[i][1]) < self.h and self.length > 2: return True i -= 1 def update(self): i = self.length - 1 while i > 0: self.history[i] = copy.deepcopy(self.history[i-1]) i -= 1 self.history[0][0] += self.x_dir*scale self.history[0][1] += self.y_dir*scale # ----------- Food Class -------------- class Food: def new_location(self): global food_x, food_y food_x = random.randrange(1, width/scale-1)*scale food_y = random.randrange(1, height/scale-1)*scale def show(self): pygame.draw.rect(display, food_colour, (food_x, food_y, scale, scale)) def show_score(): font = pygame.font.SysFont("Copperplate Gothic Bold", 20) text = font.render("Score: " + str(score), True, snake_colour) display.blit(text, (scale, scale)) # ----------- Main Game Loop ------------- def gameLoop(): loop = True global score snake = Snake(width/2, height/2) food = Food() food.new_location() while loop: 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_q: pygame.quit() sys.exit() if snake.y_dir == 0: if event.key == pygame.K_UP: snake.x_dir = 0 snake.y_dir = -1 if event.key == pygame.K_DOWN: snake.x_dir = 0 snake.y_dir = 1 if snake.x_dir == 0: if event.key == pygame.K_LEFT: snake.x_dir = -1 snake.y_dir = 0 if event.key == pygame.K_RIGHT: snake.x_dir = 1 snake.y_dir = 0 display.fill(background) snake.show() snake.update() food.show() show_score() if snake.check_eaten(): food.new_location() score += 1 snake.grow() if snake.death(): score = 0 font = pygame.font.SysFont("Copperplate Gothic Bold", 50) text = font.render("Game Over!", True, snake_colour) display.blit(text, (width/2-50, height/2)) pygame.display.update() time.sleep(3) snake.reset() if snake.history[0][0] > width: snake.history[0][0] = 0 if snake.history[0][0] < 0: snake.history[0][0] = width if snake.history[0][1] > height: snake.history[0][1] = 0 if snake.history[0][1] < 0: snake.history[0][1] = height pygame.display.update() clock.tick(10) gameLoop()

Output: