Summary

In this chapter, we saw how we can establish a connection between server and client using the UDP protocol implementation in Godot Engine’s network API. With that, the network peers can open a communication channel and exchange data.

Since this implementation works on quite a low-level approach, we saw how we can create a simple API for our peers to make, understand, and reply to each other’s requests. Depending on the request, it might be necessary to follow a process known as serialization, which is how we take relevant information from our game state and turn it into a format that we can store and pass around. In our case, we saw that JSON format is one of the most common serialization formats.

Using the JSON format, we saw how we can parse our Godot Engine string as JSON and also how to turn a JSON file into a dictionary that we can work with more efficiently using GDScript.

At the end of the chapter, we saw how we can authenticate players’...