Book Image

Godot 4 Game Development Cookbook

By : Jeff Johnson
5 (1)
Book Image

Godot 4 Game Development Cookbook

5 (1)
By: Jeff Johnson

Overview of this book

Want to transition from Godot 3 to 4? Look no further than the Godot 4 Game Development Cookbook. This comprehensive guide covers everything you need to become proficient with the latest GUI, GDscript 2.0, Vulkan 2D/3D rendering, shaders, audio, physics, TileSet/TileMap, importing, sound/music, animation, and multiplayer workflows. With its detailed recipes, the book leaves no stone unturned. The Godot 4 Cookbook begins by exploring the updated graphical user interface and helps you familiarize yourself with the new features of GDscript 2.0. Next, it delves into the efficient rendering of 2D and 3D graphics using the Vulkan renderer. As it guides you in navigating the new Godot 4 platform, the book offers an in-depth understanding of shaders, including the latest enhancements to the shader language. Moreover, it covers a range of other topics, including importing from Blender, working with audio, and demystifying the new Vulkan Renderer and the physics additions for 2D and 3D. The book also shows you how the new changes to TileSet and TileMap make 2D game development easy. Advanced topics such as importing in Godot 4, adding sound and music to games, making changes in the Animation editor, and including workflows for multiplayer in Godot 4 are covered in detail. By the end of this game development book, you’ll have gained a better understanding of Godot 4 and will be equipped with various powerful techniques to enhance your Godot game development efficiency.
Table of Contents (13 chapters)

Transitioning to GDScript 2.0

In Godot 4, the GDScript language backend was rewritten, allowing the runtime to be faster and more stable than it was in Godot 3.x. Some additions to the language were also implemented, which we will look at in this chapter: annotations that replace some keywords, such as export; the set and get properties, which replace setget; the await keyword, which replaces yield; and the super keyword, which refers to the parent class object and makes it easier to call the parent class methods.

Typed arrays now allow us to create arrays of a specific type such as all strings, which helps to cut down on errors. We will look at two ways to write a lambda function with a button signal along with other examples using lambda functions. We will also look at two callable static methods and how to use callables with signals.

In this chapter, we will cover the following recipes:

  • Investigating annotations in Godot 4
  • Using properties with getters and setters
  • Using the new await keyword and coroutines
  • Using the super keyword to call a function
  • Working with typed arrays
  • Working with lambda functions
  • Using callables with signals