Book Image

SFML Game Development By Example

By : Raimondas Pupius
Book Image

SFML Game Development By Example

By: Raimondas Pupius

Overview of this book

Simple and Fast Multimedia Library (SFML) is a simple interface comprising five modules, namely, the audio, graphics, network, system, and window modules, which help to develop cross-platform media applications. By utilizing the SFML library, you are provided with the ability to craft games quickly and easily, without going through an extensive learning curve. This effectively serves as a confidence booster, as well as a way to delve into the game development process itself, before having to worry about more advanced topics such as “rendering pipelines” or “shaders.” With just an investment of moderate C++ knowledge, this book will guide you all the way through the journey of game development. The book starts by building a clone of the classical snake game where you will learn how to open a window and render a basic sprite, write well-structured code to implement the design of the game, and use the AABB bounding box collision concept. The next game is a simple platformer with enemies, obstacles and a few different stages. Here, we will be creating states that will provide custom application flow and explore the most common yet often overlooked design patterns used in game development. Last but not the least, we will create a small RPG game where we will be using common game design patterns, multiple GUI. elements, advanced graphical features, and sounds and music features. We will also be implementing networking features that will allow other players to join and play together. By the end of the book, you will be an expert in using the SFML library to its full potential.
Table of Contents (21 chapters)
SFML Game Development By Example
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Building the game world


Since tiles are going to play such a huge role in our game design, it would be greatly helpful to have a separate data structure that all tile information can be localized to. A good place to start is by defining some constants of the tile size, as well as dimensions of the tile sheets that are going to be used. A simple enumeration can be quite helpful when storing this information:

enum Sheet{Tile_Size = 32, Sheet_Width = 256, Sheet_Height = 256};

Here, we make it so all tiles are going to be 32 px wide and 32 px tall and every single tile sheet is going to be 256 px wide and 256 px tall. These constants, obviously, can be changed, but the idea here is to keep them the same during runtime.

To keep our code a little shorter, we can also benefit from a type alias for tile IDs:

using TileID = unsigned int;

The flyweight pattern

Each tile, obviously, has to have a sprite that represents its type graphically speaking. In order to draw a grass tile, we want to adjust the sprite...