Reusable logic for the classic game Snake, implemented with the reducer pattern. This library exposes a reducer function with the signature (state, action) -> state, actions for advancing the game one tick (actions.advance), controlling the snake (actions.goUp, actions.goDown, actions.goLeft, actions.goRight) and restarting (actions.restart) and an initialState Object. All actions are synchronous (ie. return an object like {type: "ADVANCE"}) and none take any arguments.
The type of the game state looks like this:
type State = {
// Grid dimensions
width: number;
height: number;
// Snake's head position
x: number;
y: number;
direction: 'left' | 'right' | 'up' | 'down';
// Game status
status: 'running' | 'over';
score: number;
tail: Array<{ x: number; y: number }>;
items: Array<{ x: number; y: number }>;
};Check out the examples for detailed usage paterns.