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  • Book Overview & Buying SDL Game Development
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SDL Game Development

SDL Game Development

By : Shaun Mitchell
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SDL Game Development

SDL Game Development

5 (0)
By: Shaun Mitchell
Buy this Book

Overview of this book

SDL 2.0 is the latest release of the popular Simple DirectMedia Layer API, which is designed to make life easier for C++ developers, allowing you simple low-level access to various multiplatform audio, graphics, and input devices.SDL Game Development guides you through creating your first 2D game using SDL and C++. It takes a clear and practical approach to SDL game development, ensuring that the focus remains on creating awesome games.Starting with the installation and setup of SDL, you will quickly become familiar with useful SDL features, covering sprites, state management, and OOP, leading to a reusable framework that is extendable for your own games. SDL Game Development culminates in the development of two exciting action games that utilize the created framework along with tips to improve the framework.
Table of Contents (16 chapters)
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SDL Game Development
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SDL Game Development
Credits
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Credits
About the Author
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About the Author
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Getting Started with SDL
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Getting Started with SDL
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Why use SDL?
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Setting up SDL in Visual C++ Express 2010
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Hello SDL
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What makes up a game
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The Game class
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Summary
2
Drawing in SDL
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Drawing in SDL
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Basic SDL drawing
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Source and destination rectangles
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Installing SDL_image
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Tying it into the framework
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Summary
3
Working with Game Objects
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Working with Game Objects
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Using inheritance
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Implementing polymorphism
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Using abstract base classes
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Should we always use inheritance?
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Putting it all together
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Summary
4
Exploring Movement and Input Handling
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Exploring Movement and Input Handling
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Setting up game objects for movement
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Creating fixed frames per second
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Input handling
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Summary
5
Handling Game States
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Handling Game States
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A simple way for switching states
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Implementing finite state machines
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Implementing menu states
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Summary
6
Data-driven Design
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Data-driven Design
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Loading XML files
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Implementing Object Factories
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Fitting the factory into the framework
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Parsing states from an XML file
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Loading the menu state from an XML file
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Loading other states from an XML file
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Summary
7
Creating and Displaying Tile Maps
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Creating and Displaying Tile Maps
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What is a tile map?
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Getting familiar with the Tiled application
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Parsing and drawing a tile map
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Scrolling a tile map
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Parsing object layers
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Summary
8
Creating Alien Attack
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Creating Alien Attack
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Using the SDL_mixer extension for sound
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Setting up the basic game objects
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Handling bullets
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Dealing with collisions
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Possible improvements
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Summary
9
Creating Conan the Caveman
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Creating Conan the Caveman
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Setting up the basic game objects
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Possible additions
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Summary
1
Index
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Index

Source and destination rectangles

Now that we have something drawn to the screen, it is a good idea to cover the purpose of source and destination rectangles, as they will be extremely important for topics such as tile map loading and drawing. They are also important for sprite sheet animation which we will be covering later in this chapter.

We can think of a source rectangle as defining the area we want to copy from a texture onto the window:

  1. In the previous example, we used the entire image so we could simply define the source rectangle's dimensions with the same dimensions as those of the loaded texture.

  2. The red box in the preceding screenshot is a visual representation of the source rectangle we used when drawing to the screen. We want to copy pixels from inside the source rectangle to a specific area of the renderer, the destination rectangle (the red box in the following screenshot).

  3. As you would expect, these rectangles can be defined however you wish. For example, let's open up our Game...

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SDL Game Development
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