Retro Snake

Web-based Retro Snake game. Demo, server backend project.

Prerequisites

You will need the following things properly installed on your computer.

• Git
• Node.js (with NPM)

Installation

• git clone <repository-url> this repository
• change into the new directory
• npm install

Hash

Hash is required for the server requests. You may use your own hash function or copy the default implementation.

cp js/encrypt.example.js js/encrypt.js

Production build

• npm run build

Run at localhost

• npm run start

Open URL http://localhost:8080/ and enjoy.

Controls

Key	Alternative	Action
W	ARROW UP	Move up
S	ARROW DOWN	Move down
A	ARROW LEFT	Move left
D	ARROW RIGHT	Move right
	SPACE	Throw
P	ESCAPE	Pause
R	ENTER	Restart
H		Help
C		Color mode
V		Vibration
T		Score table

Levels

All levels located into src/js/levels.js file. Field size is 10x20.

Format:

module.exports=[{speed: 0,score: 100,items: [{type: 'barrier',start: [4,5],end: [5,5],pattern: [[1,0],[1,0],[-1,0],[-1,0]]},{type: 'wall',start: [0,4],end: [1,5]}]}];

• numberspeed - start speed
• numberscore - minimum score to level up
• Arrayitems - items list (please read below)
• stringitems[{type}] - item type (wall or barrier)

Wall item

Wall item is just a wall. If the snake touches the wall the game end.

• stringtype - 'wall'
• [number, number]start - wall start coordinates
• [number, number]end - wall end coordinates

The wall is a filled rectangle. If you want to draw a blank rectangle, then you need to combine four wall items.

Barrier

Barrier is a moving wall.

• stringtype - 'wall'
• [number, number]start - wall start coordinates
• [number, number]end - wall end coordinates
• Array<[number, number]>pattern - motion pattern cycle

Each element of the motion pattern is an increment of the current barrier coordinates. The movement is cyclic, so be careful when creating a pattern.

License

MIT