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Godot 4 Game Development Projects
Godot 4 Game Development Projects

Godot 4 Game Development Projects: Build five cross-platform 2D and 3D games using one of the most powerful open source game engines , Second Edition

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Godot 4 Game Development Projects

Introduction to Godot 4.0

Whether it’s a career goal or a recreational hobby, game development is a fun and rewarding endeavor. There’s never been a better time to get started in game development. Modern programming languages and tools have made it easier than ever to build high-quality games and distribute them to the world. If you’re reading this book, then you’ve set your feet on the path to making the game(s) of your dreams.

This book is an introduction to the Godot Game Engine and its new 4.0 version, which was released in 2023. Godot 4.0 has a large number of new features and capabilities that make it a strong alternative to expensive commercial game engines. For beginners, it offers a friendly way to learn game development fundamentals. For more experienced developers, Godot is a powerful, customizable, and open toolkit for bringing your visions to life.

This book takes a project-based approach that will introduce you to the fundamentals of...

General advice

This section contains some general advice to readers, based on the author’s experience as a teacher and lecturer. Keep these tips in mind as you work through the book, especially if you’re very new to programming.

Try to follow the projects in the book in order. Later chapters may build on topics that were introduced in earlier chapters, where they are explained in more detail. When you encounter something that you don’t remember, go back and review that topic in the earlier chapter. No one is timing you, and there’s no prize for finishing the book quickly.

There is a lot of material to absorb here. Don’t feel discouraged if you don’t get it at first. The goal is not to become an expert in game development overnight – that’s just not possible. Just like with any other skill – carpentry or a musical instrument, for example – it takes years of practice and study to develop proficiency. Repetition...

What is a game engine?

Game development is complex and involves a wide variety of knowledge and skills. To build a modern game, you need a great deal of underlying technology before you can make the actual game itself. Imagine that you had to build your computer and write your own operating system before you could even start programming. Game development would be a lot like that if you truly had to start from scratch and make everything that you need.

There are also a number of common needs that every game has. For example, no matter what the game is, it’s going to need to draw things on the screen. If the code to do that has already been written, it makes more sense to reuse it than to create it all over again for every game. That’s where game frameworks and engines come in.

A game framework is a set of libraries with helper code that assists in building the foundational parts of a game. It doesn’t necessarily provide all the pieces, and you may still have...

What is Godot?

Godot is a fully featured modern game engine, providing all of the features described in the previous section and more. It is also completely free and open source, released under the very permissive MIT license. This means there are no fees, no hidden costs, and no royalties to pay on your game’s revenue. Everything you make with Godot 100% belongs to you, which is not the case with many commercial game engines that require an ongoing contractual relationship. For many developers, this is very appealing.

If you’re not familiar with the concept of open source, community-driven development, this may seem strange to you. However, much like the Linux kernel, Firefox browser, and many other very well-known pieces of software, Godot is not developed by a company as a commercial product. Instead, a dedicated community of passionate developers donates their time and expertise to building the engine, testing and fixing bugs, producing documentation, and more...

Downloading Godot

You can download the latest version of Godot by visiting https://godotengine.org/ and clicking Download Latest. This book is written for version 4.0. If the version you download has another number at the end (such as 4.0.3), that’s fine – this just means that it includes updates to version 4.0 that fix bugs or other issues.

On the download page, you will also see a standard version and a .NET version. The .NET version is specially built to be used with the C# programming language. Don’t download this one unless you plan to use C# with Godot. The projects in this book do not use C#.

Figure 1.1: The Godot download page

Figure 1.1: The Godot download page

Unzip the downloaded file, and you’ll have the Godot application. Optionally, you can drag it to your Programs or Applications folder, if you have one. Double-click the application to launch it and you’ll see Godot’s Project Manager window, which you’ll learn about in the...

Overview of the Godot UI

Like most game engines, Godot has a unified development environment. This means that you use the same interface to work on all of the aspects of your game – code, visuals, audio, and so on. This section is an introduction to the interface and its parts. Take note of the terminology used here; it will be used throughout this book when referring to actions you’ll take in the editor window.

Project Manager

The Project Manager window is the first window you’ll see when you open Godot:

Figure 1.3: Project Manager

Figure 1.3: Project Manager

Opening Godot for the first time

The first time you open Godot, you won’t have any projects yet. You’ll see a pop-up window asking if you want to explore official example projects in the Asset Library. Select Cancel, and you’ll see the Project Manager as it appears in the preceding screenshot.

In this window, you can see a list of your existing Godot projects. You can choose...

Learning about nodes and scenes

Nodes are the basic building blocks for creating games in Godot. A node is an object that can give you a variety of specialized game functions. A given type of node might display an image, play an animation, or represent a 3D model. The node contains a collection of properties, allowing you to customize its behavior. Which nodes you add to your project depends on what functionality you need. It’s a modular system designed to give you flexibility in building your game objects.

The nodes you add are organized into a tree structure. In a tree, nodes are added as children of other nodes. A particular node can have any number of children, but only one parent node. When a group of nodes is collected into a tree, it is called a scene:

Figure 1.10: Nodes arranged in a tree

Figure 1.10: Nodes arranged in a tree

Scenes in Godot are typically used to create and organize the various game objects in your project. You might have a player scene that contains all...

Scripting in Godot

Godot provides two official languages for scripting nodes: GDScript and C#. GDScript is the dedicated built-in language, providing the tightest integration with the engine, and is the most straightforward to use. For those that are already familiar or proficient with C#, you can download a version that supports that language.

In addition to the two supported languages, Godot itself is written in C++, and you can get even more performance and control by extending the engine’s functionality directly. See Additional topics in Chapter 7 for information on using other languages and extending the engine.

All the games in this book will use GDScript. For the majority of projects, GDScript is the best choice of language. It is tightly integrated with Godot’s Application Programming Interface (API) and is designed for rapid development.

About GDScript

GDScript’s syntax is very closely modeled on the Python language. If you are familiar with...

Summary

In this chapter, you were introduced to the concept of a game engine in general and to Godot in particular. Most importantly, you downloaded Godot and launched it!

You learned some important vocabulary that will be used throughout this book when referring to various parts of the Godot editor window. You also learned about the concepts of nodes and scenes, which are the fundamental building blocks of Godot.

You also received some advice on how to approach the projects in this book and game development in general. If you ever find yourself getting frustrated as you are working through this book, go back and reread the General advice section. There’s a lot to learn, and it’s OK if it doesn’t all make sense the first time. You’ll make five different games throughout this book, and each one will help you understand things a little bit more.

You’re ready to move on to the next chapter, where you’ll start building your first game...

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Key benefits

  • Master the art of developing cross-platform games
  • Harness the power of Godot's node and scene system to design robust and reusable game objects
  • Effortlessly and effectively integrate Blender into Godot to create powerful 3D games
  • Purchase of the print or Kindle book includes a free PDF eBook

Description

Godot 4.0 is one of the most sought-after open-source game engines, and if you’re enthusiastic about exploring its features, then this book is for you. Written by an author with over twenty-five years of experience, the Godot 4 Game Development Projects introduces the Godot game engine and its feature-rich 4.0 version. With an array of new capabilities, Godot 4.0 is a strong alternative to expensive commercial game engines. If you’re a beginner, this book will help you learn game development techniques, while experienced developers will understand how to use this powerful and customizable tool to bring their creative visions to life. This updated edition consists of five projects with an emphasis on the 3D capabilities of the engine that will help you build on your foundation-level skills through small-scale game projects. Along the way, you’ll gain insights into Godot’s inner workings and discover game development techniques that you can apply to your projects. Using a step-by-step approach and practical examples, this book covers everything from the absolute basics to sophisticated game physics, animations, and much more. By the time you complete the final project, you’ll have a strong foundation for future success with Godot 4.0 and you’ll be well on your way to developing a variety of games.

Who is this book for?

This book is for game developers at all levels, from beginners seeking an introduction to experienced programmers aiming to delve into the intricacies of Godot Engine 4.0. It is a valuable resource for newcomers and a treasure trove of insights for experienced developers. Prior programming experience is a prerequisite.

What you will learn

  • Get acquainted with the Godot game engine and editor if you're a beginner
  • Explore the new features of Godot 4.0
  • Build games in 2D and 3D using design and coding best practices
  • Use Godot's node and scene system to design robust, reusable game objects
  • Use GDScript, Godot's built-in scripting language, to create complex game systems
  • Implement user interfaces to display information
  • Create visual effects to spice up your game
  • Publish your game to desktop and mobile platforms
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Table of Contents

9 Chapters
Chapter 1: Introduction to Godot 4.0 Chevron down icon Chevron up icon
Chapter 2: Coin Dash – Build Your First 2D Game Chevron down icon Chevron up icon
Chapter 3: Space Rocks: Build a 2D Arcade Classic with Physics Chevron down icon Chevron up icon
Chapter 4: Jungle Jump – Running and Jumping in a 2D Platformer Chevron down icon Chevron up icon
Chapter 5: 3D Minigolf: Dive into 3D by Building a Minigolf Course Chevron down icon Chevron up icon
Chapter 6: Infinite Flyer Chevron down icon Chevron up icon
Chapter 7: Next Steps and Additional Resources Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

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4 star 25%
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1 star 4.2%
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Rick Nov 29, 2023
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Really productive book, each game expanding the Godot usage, with fun along the way. Very few omissions to confuse, you quickly find your feet to start using the software confidently
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Jacob Aug 11, 2023
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Godot 4 is a powerful software, and while it's very accessible to the new or average developer, it's often hard to know where to start when learning it for the first time. While there are MANY tutorials out there to use when learning Godot 4, many of them don't often do a very good job at explaining the *why* when we follow a certain step or insert certain code, making the transition between following project guides to making your very own project very difficult. However, this book isn't your average tutorial, and after finishing this book, I guarantee that you will feel fully capable of creating your very own project without the use of pre-made instructions.In many of the game engine tutorials that I've read or watched in the past, one common trait among all of them was how they often just gave you instructions to follow with little-to-no explanation as to *why* you need to follow that step, often leading to confusion and frustration in the future. In this book, almost every single step of each project tutorial also provides a detailed, yet brief, explanation as to why we are including that step. Not only does this clear up any confusion as to what the author is doing or why they are doing this, but these explanations also expands your creativity, allowing you to visualize different scenarios in the future where this feature might come in handy. In addition, this book also touches on many subjects that most other tutorials or guides fail to cover, such has how to properly use documentation for finding more information about the Godot engine and how to use apply version control to better manage your project files.Overall, this book hasn't disappointed me in the slightest, and I praise the author who wrote it. It's obvious that there was much care and detail that went into making this book, and as a result, we are left with a perfect guide that can get any developer started on their Godot 4 journey.
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ROBERTO HILSACA Sep 24, 2023
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This introduction is worth it for either new into game development or experienced developers looking to switch platform. As Unity has changed its fees plenty of developers like me are looking to switch into a similar platform and this is the best choice for 2D or not to heavy 3D games. While reading over I came across the great starting point which guides me from preparing the project and setting up the game according to what I need for making sure it works on multiple platforms. Glad to know that Godot also has its own IDE and make sure that when reading over to understand the nodes which I am not a big fan but can simplify development for beginners.
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Roger Andersen Jan 19, 2024
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simple and easy introduction to godot and gdscript.
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PK Bradfield Sep 14, 2023
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is a great book for beginners to use to follow along on projects that will give them a helpful introduction to programming in Godot 4. This 2nd edition is a fantastic update to the original edition.
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