Traffic Light State Machine with Microstates

Checkout Microstates.js Project if you haven’t already.

Demo on CodeSandbox

This application is an example of using Microstates to build State Machines. This is one of the popular examples of state machines but it adds a small Microstaty twist. It shows how you an compose state machines and transition state one state machine based on another.

In this example, has TrafficLight state machine and a Person state machine. When the traffic light is red, the pedastrian stands and waits, runs when it’s yellow and walks when it’s green. Both state machines are composed into an Intersection state machine.

The file structure has /src/states directory where all of the state machines and their tests are. /src/components directory has components for rendering the state machines. The state machines are brought to live by an Interval component which calls Intersection’s tick transition every minute.

Intallation

1. Clone this repo git clone git@github.com:microstates/trafficlight.git
2. Install npm dependencies with yarn or npm install
3. yarn start or npm start to start the server

Testing

You can run tests with yarn test or npm test.

Contributing

PRs and Questions are welcome.