How to Create an Advanced Snake Game with Python and Pygame

How to Create an Advanced Snake Game with Python and Pygame

Welcome to this comprehensive guide on creating an advanced snake game using Python and Pygame. This tutorial will walk you through the entire process, from setting up your environment to writing the code and explaining each part in detail. By the end of this guide, you'll have a fully functional snake game that you can customize and expand upon.

Step 1: Setting Up Your Environment

First, make sure you have Python installed on your computer. You can download it from python.org. Next, install the Pygame library using pip:

pip install pygame

Step 2: Create the Project File

Create a new Python file named snake_game.py.

Step 3: Import Necessary Libraries

Start by importing the necessary libraries:

import pygame
import time
import random

Step 4: Define Colors and Screen Dimensions

Define the colors and screen dimensions that will be used in the game:

white = (255, 255, 255)
black = (0, 0, 0)
red = (213, 50, 80)
green = (0, 255, 0)
blue = (50, 153, 213)

width = 800
height = 600

Step 5: Initialize Pygame and Create the Screen

Initialize Pygame and create the game screen:

pygame.init()
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('Snake Game')
clock = pygame.time.Clock()

Step 6: Define the Snake and Food Functions

Create functions to draw the snake and display messages:

def snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(screen, black, [x[0], x[1], snake_block, snake_block])

def message(msg, color):
    mesg = font_style.render(msg, True, color)
    screen.blit(mesg, [width / 6, height / 3])

Step 7: Define the Score Function

Create a function to display the score:

def score(score):
    value = score_font.render("Score: " + str(score), True, black)
    screen.blit(value, [0, 0])

Step 8: Main Game Loop

Define the main game loop where the game logic will be implemented:

def game():
    game_over = False
    game_close = False

    x1 = width / 2
    y1 = height / 2

    x1_change = 0
    y1_change = 0

    snake_list = []
    length_of_snake = 1

    foodx = round(random.randrange(0, width - snake_block) / 10.0) * 10.0
    foody = round(random.randrange(0, height - snake_block) / 10.0) * 10.0

    while not game_over:
        while game_close == True:
            screen.fill(white)
            message("You Lost! Press Q-Quit or C-Play Again", red)
            score(length_of_snake - 1)
            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:
                        game()

        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

        if x1 >= width or x1 < 0 or y1 >= height or y1 < 0:
            game_close = True
        x1 += x1_change
        y1 += y1_change
        screen.fill(white)
        pygame.draw.rect(screen, green, [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

        snake(snake_block, snake_list)
        score(length_of_snake - 1)

        pygame.display.update()

        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, width - snake_block) / 10.0) * 10.0
            foody = round(random.randrange(0, height - snake_block) / 10.0) * 10.0
            length_of_snake += 1

        clock.tick(snake_speed)

    pygame.quit()
    quit()

game()

Running the Game

Finally, call the game() function to start the game.

Explanation of the Code

This section explains the code in detail:

  • Initialization: We initialize Pygame and set up the game window.
  • Game Loop: The main game loop handles events, updates the game state, and redraws the screen.
  • Snake Movement: The snake's position is updated based on user input.
  • Collision Detection: The game checks for collisions with the walls and the snake itself.
  • Food Generation: Food is generated at random positions, and the snake grows when it eats the food.
  • Score Display: The current score is displayed on the screen.

Motivation for Viewers

Creating your own game is both fun and educational. By completing this project, you'll improve your programming skills and gain a deeper understanding of game development. Remember, the Python and Pygame communities are very active, so don't hesitate to seek help if you encounter any issues.

I hope this tutorial inspires you to create your own games and applications. Happy coding!

Download the Code ( https://s6.dosya.tc/server21/nxutno/snake.rar.html )