Conventions used

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: "This class initializes the Context object and the states, and it also triggers state changes."

A block of code is set as follows:

namespace Chapter.State
{
    public interface IBikeState
    {
        void Handle(BikeController controller);
    }
}

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

namespace Chapter.State
{
    public enum Direction
    {
        Left = -1,
        Right = 1
    }
}

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "These objects can publish specific types of events declared by the Event Bus to Subscribers."