The book is designed to be read from the start, chapter by chapter. If you have prior knowledge of the contents of a chapter, then please feel free to skip ahead instead.

It is good to have some prior programming experience with C++, but if not, then there is a chapter on C++ programming, which covers the basics. No prior knowledge of graphics programming is assumed.

To run OpenGL and Vulkan projects, make sure your hardware supports the current version of the API. The book uses OpenGL 4.5 and Vulkan 1.1. Most GPU vendors support OpenGL and Vulkan, but for a full list of supported GPUs, please refer to the GPU manufacturer or to the wiki, at https://en.wikipedia.org/wiki/Vulkan_(API).

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packt.com.
2. Select the Support tab.
3. Click on Code Downloads.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/CPP-Game-Development-By-Example. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here:

https://www.packtpub.com/sites/default/files/downloads/9781789535303_ColorImages.pdf.

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Here, the printing of Hello, World is tasked to the main function."

A block of code is set as follows:

#include <iostream>
// Program prints out "Hello, World" to screen
int main()
{
std::cout<< "Hello, World."<<std::endl;
return 0;
} 

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

int main() {
    //init game objects
        while (window.isOpen()) {
            // Handle Keyboard events
            // Update Game Objects in the scene
    window.clear(sf::Color::Red);
    // Render Game Objects
    window.display();
        }
        return 0;
    }

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "In Input and under Linker, type the following .lib files."