Creating A Snake Game With Python: A Step-By-Step Guide

Python is a well-liked and simple to learn programming language. In this tutorial, we'll go over how to create a classic Snake game using the pygame library. This is how to make a custom interactive Snake game of your own.

Follow The Code As Given

# Step 1: Import Libraries
import pygame
import time
import random

# Step 2: Initialize Pygame
pygame.init()

# Step 3: Define Colors
white = (255, 255, 255)
yellow = (255, 255, 102)
black = (0, 0, 0)
red = (213, 50, 80)
green = (0, 255, 0)
blue = (50, 153, 213)

# Step 4: Set Up the Display
dis_width = 800
dis_height = 600
dis = pygame.display.set_mode((dis_width, dis_height))
pygame.display.set_caption('Snake Game')

# Step 5: Set Up the Clock
clock = pygame.time.Clock()

# Step 6: Set Snake Block Size and Speed
snake_block = 10
snake_speed = 15

# Step 7: Set Up Font Style
font_style = pygame.font.SysFont(None, 50)

# Step 8: Define Snake Drawing Function
def our_snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(dis, green, [x[0], x[1], snake_block, snake_block])

# Step 9: Define Message Display Function
def message(msg, color):
    mesg = font_style.render(msg, True, color)
    dis.blit(mesg, [dis_width / 6, dis_height / 3])

# Step 10: Define the Game Loop
def gameLoop():
    game_over = False
    game_close = False

    # Step 11: Initialize Snake Position and Direction
    x1 = dis_width / 2
    y1 = dis_height / 2
    x1_change = 0
    y1_change = 0

    # Step 12: Initialize Snake and Food
    snake_List = []
    Length_of_snake = 1
    foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
    foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0

    # Step 13: Main Game Loop
    while not game_over:

        # Step 14: Handle Game Over State
        while game_close:
            dis.fill(blue)
            message("You Lost! Press C-Play Again or Q-Quit", red)
            pygame.display.update()

            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_over = True
                        game_close = False
                    if event.key == pygame.K_c:
                        gameLoop()

        # Step 15: Handle User Input
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    x1_change = -snake_block
                    y1_change = 0
                elif event.key == pygame.K_RIGHT:
                    x1_change = snake_block
                    y1_change = 0
                elif event.key == pygame.K_UP:
                    y1_change = -snake_block
                    x1_change = 0
                elif event.key == pygame.K_DOWN:
                    y1_change = snake_block
                    x1_change = 0

        # Step 16: Check for Collisions and Update Snake
        if x1 >= dis_width or x1 < 0 or y1 >= dis_height or y1 < 0:
            game_close = True
        x1 += x1_change
        y1 += y1_change
        dis.fill(blue)
        pygame.draw.rect(dis, white, [foodx, foody, snake_block, snake_block])
        snake_head = []
        snake_head.append(x1)
        snake_head.append(y1)
        snake_List.append(snake_head)
        if len(snake_List) > Length_of_snake:
            del snake_List[0]

        for x in snake_List[:-1]:
            if x == snake_head:
                game_close = True

        # Step 17: Draw Snake and Update Display
        our_snake(snake_block, snake_List)
        pygame.display.update()

        # Step 18: Handle Food Consumption
        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
            foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0
            Length_of_snake += 1

        # Step 19: Set Game Speed
        clock.tick(snake_speed)

    # Step 20: Quit Pygame
    pygame.quit()
    quit()

# Step 21: Run the Game Loop
gameLoop()

We have created a simple Snake game using Python and the pygame library. Feel free to experiment with the code and add your own features to enhance the game.