The Snake Creation

Now that we've laid the groundwork for our fruit-eating digital serpent, it's time to bring our slithering friend to life. Here what we will work on:

As you can see there is a lot things to do but firstly we need to think what properties our snake should have based on these characteristics the basic things that comes to mind are:

• field: The game field where the snake will move.
• sprite: The sprite image representing the snake.
• positions: An array that stores all positions of body segments.
• length: The initial length of the snake (default is 2).
• direction: Current direction of the snake.

Attributes

Passed attributes

The field and sprite and positions are the same concept as in a Fruit class, except 'positions' now represents an array containing the individual positions of each body segment of the snake.

Directions

Before delving into our snake class, you'll spot some constantsˀ representing tuples. These tuples represent the directions the snake can move in. Inside the constructor, make sure to give our snake a directions attribute, set to the default direction of RIGHT.

Our game field is represented as a tuple with 'x' and 'y' attributes. For instance, (0, 0) denotes the upper left corner. To move one block to the right, we need to increase the 'x' coordinate, resulting in (1, 0). We explore it more in future chapter.

Body segments

To represent the body segments, we'll keep track of all positions in a list as tuples. This way, it's easy to update each position and add new segments as required, making the process more manageable and flexible.

Note

The positions variable should be an array of tuples, with each tuple representing a position occupied by the snake. Its length should correspond to the length of the snake. You can initialize it like this: self.positions = [(0, 0)] * length.

With this initialization, our Snake object is equipped with the necessary attributes.