Chapter 10. Coding the Bat and Ball

As we have done so much theory and preparation work in the previous two chapters we can quickly make some progress on this one. We already have our bare-bones game engine coded and ready to update, draw and track time down to the nearest millisecond.

Now we can add code to the Bat and the Ball classes. By the end of the chapter, we will have a moving ball and a player-moveable bat. Although we will need to wait until the next chapter before the ball bounces off the walls and the bat, we will also code the necessary methods in the Ball class so that this last step will be very easy to achieve.

In this chapter we are going to:

• Code the Ball class
• Implement an instance of Ball in the game engine
• Code the Bat class
• Implement a Bat instance in the game engine
• Add movement controls to the Bat

Let's start by adding our first object to the game to bring a ball to life.