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OpenGL Game Development By Example

You're reading from   OpenGL Game Development By Example Design and code your own 2D and 3D games efficiently using OpenGL and C++

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Product type Paperback
Published in Mar 2016
Publisher
ISBN-13 9781783288199
Length 340 pages
Edition 1st Edition
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Authors (2):
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Robert Madsen Robert Madsen
Author Profile Icon Robert Madsen
Robert Madsen
Stephen Madsen Stephen Madsen
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Stephen Madsen
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Table of Contents (14) Chapters Close

A penny for your input

It's likely that at some point in your life, you have been part of a conversation that seemed one-sided. The other party was talking and talking, and it didn't seem you could get a word in. After a while, such a conversation becomes quite boring!

The same would happen with a computer game that didn't allow any input. Input is a set of techniques that allows you to control the game. There are many ways to implement an input system, and we will cover them here.

The keyboard input

The most common form of input for most computers is the keyboard. Obviously, the keyboard can be used to enter text, but the keyboard can also be used to directly control the game.

Some examples of this include the following:

  • Using the right arrow, left arrow, up arrow, and down arrow keys to control the character (we'll be using this)
  • Using the W, A, S, and D keys as to move the character (these keys almost form a cross on the keyboard, making them a good substitute to move...
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