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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

Working with fonts


Until now, we embedded any text that we needed inside of an existing texture. However, there are times when we may want to have the code decide what text to display. For example, on our credits screen, we don't want to make a graphic for each person's name who took part in creating the game.

Creating the font

We need a way to render text directly to the screen, and this means that we also need a way to define the font that we want to use when rendering the text. First, we need to add a global variable that services as a handle to our fonts. Add the following line to the variable declarations in the code:

GLuint fontBase;

Now, we need to add the following code to create the font:

GLvoid BuildFont(GLvoid)
{
  HFONT newFont;
  HFONT tempFont;
  
  fontBase = glGenLists(96);
  
  tempFont = CreateFont(-26, // Height
  0,                        // Width
  0,                        // Escapement
  0,                        // Orientation
  FW_BOLD,                  // Weight
  FALSE...
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