How to Make a Snake Game in Python | Steps & Code

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In this post, I'll guide you through the process of coming an easy game that even beginners in Python will find simple to make.

There are many methods to make the game, one of which is the use of the PyGame library in Python which is an Python library that we use to make games.

The other method is via using the library turtle. The library comes pre-installed with Python and offers the user with a virtual canvas to draw shapes and create images.

This article will make use of the turtle library in order to implement our basic snake game that is a great game for beginners and especially for Python developers.

In the course of this module, we will also utilize two additional modules, namely

time module. This technique allows us to track the amount of seconds that have passed since the last time.

Random module - It creates random numbers in Python.

Other essential tools you'll require are the text editor that you prefer. I'll use VSCode for this post. Of course, you'll have to install Python 3 on your machine in case you don't already have it.

This could be a lot of an enjoyable experience!

How does the snake game work

The main objective of the game is players to score the highest score, by managing the snake in order to collect the food that the screen displays.

It is controlled by the player with four direction keys , which are directional to the direction that the snake is headed toward. If the snake hits an object or the player it will be ejected from the game.

The steps below are the ones we'll take to play the game.

  1. Importing into our software the modules that are pre-installed (turtle time, turtle as well as random).
  2. Making the game's screen with Turtle module.
  3. The keys are set to determine the snake's movement on the screen.
  4. The game's implementation.

Create an snakegame.py file where we'll add an implementation program.

Importing the modules

This part of the program will install the time, turtle and random modules that come already installed in Python. In addition, we'll define default values for the player's first score, the maximum score the player can achieve and the amount of delay that is taken by the player during each move. The module for time is used in this case to calculate the duration of delay.

Include the following the code into your snakegame.py file.

The game's screen display is created

The turtle module that we install this module will let us create a virtual canvas which will serve as the game's window screen. We can then make the snake's body as well as the food that it will be collecting. The screen will also show the player's score.

Include this code in this file. Python file.

The code in the above snippet begins by establishing the turtle's screen. It then passes the title and colour for the background to our screen. After defining the size, we draw the form of the snake onto the virtual canvas.

This penup() method is a simple way to pick up the pen of the turtle to ensure that a line is not drawn while the turtle is moving. Its goto(x,y) method uses coordinate positions that allow the turtle into an absolute position.

Then we design the food items that the snake eats. We would like to display the score of the player each when the snake has collected the food, as well as the highest score a player achieves throughout the play. So, we utilize pen.write() as the pen.write() procedure to achieve this. Hideturtle() removes the turtle icon off the view within the header section where the text is written on.

It is essential to include an turtle.mainloop() in the final line of code which will make the screen for longer, which allows the user to do something with the screen.

After running the file, you should see this output

Set up directions keys for the snake

In this case, we create specific keys that determine the direction that the snake should be moving across the screen. We will be using the letters "L" as a left key, the 'R' to indicate left, the 'U' to indicate upwards, and 'D' for down. We will apply these directions by using the direction function of the turtle which we will use to call the snake.

Include the code snippet below into your.

() function above sets the move() function mentioned above allows the snake's movement to the specified position within a specified coordinate.

Its listen() function functions as an event listener that relies on the methods to move the snake in a certain direction once the user hits the keys.

The implementation of the game's gameplay in the form of a snake

After having laid out the basic outline of our game, we'll have to turn the game into a live-action.

This could include the following:

  • Increasing the length of the snake each time it takes in food by, preferably, by using a different shade.
  • Increasing the score of the player every time the snake eats the food, and then tracking the player with the highest score.
  • The player can keep the snake to prevent it from hitting the wall or even its own body.
  • The game is re-started when the snake is struck.
  • The score of the player resets to zero once the game is restarted, but the screen will display the highest score of the player.

Add the remaining code to your Python file.

In the code snippet in the above code snippet, we have created a random location for the snake's food on the screen. Each time the snake eats the foodstuff, it's body grows in a different hue; white, in this instance, to mark its growth.

Once the snake has collected the food, it does not collide with it. the food is placed at random positions within the 270 degree coordinate area of the screen's size. Each time the snake takes food, the score of the player grows by 5. If the snake is involved in a collision with another player, their score will be reset to zero and the screen is left with the highest score.

Conclusion

The turtle library is a fun and simple method to make the game of snakes as we've read in this article. You can also create the same with PyGame. PyGame library. You can go through this PyGame tutorial here and learn how you can use the game in a different way.