Getting ready
This chapter does not need any particular prerequisite to learn about the Physics engine. However, at the end of this chapter we will continue our tower defense game from where we left it in Chapter 4, No Longer Alone – Sweet-Toothed Pandas Strike. Therefore, if you want to keep developing the Tower Defense game, you need to have done all the other steps in the previous chapters.
For those of you who are newcomers to physics, a great deal of patience is required, but once you master these concepts, a world of new possibilities for your own games will open. So don't give up!