Chapter 16.  Extending SFML Classes, Particle Systems, and Shaders

In this final chapter, we will explore the C++ concept of extending other people's classes. More specifically, we will look at the SFML Drawable class and the benefits of using it as a base class for our own classes. We will also scratch the surface of the topic of OpenGL shaders and see how writing code in another language OpenGL Shading Language (GLSL), which can be run directly on the graphics card, can lead to smooth graphical effects that might otherwise be impossible. As usual, we will also use our new skills and knowledge to enhance the current project.

Here is a list of the topics in the order we will cover them:

• The SFML Drawable class
• Building a particle system
• OpenGl shaders and GLSL
• Using shaders in the Thomas Was Late game