In the previous section, we learned how to add objects to our screen and how to apply texture, transformation and projection to the objects. As we progress ahead in the book, we will add various objects to our screen, but as we add more objects to it and if we wish to view those from different angles, we don't want to have specific code to be able to do that or to move freely around the objects. Therefore, in this chapter, we'll be looking at implementing a Camera class, which will help us to move around our world freely, using the keyboard, and view those objects from different angles. Implementing this class will help us to improvise a walking style of movement and take a look at the virtual world around the player with the help of the mouse. As we learned in the previous chapter, what we've got currently is the single cube...
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