In Chapter 9, Controlling Physics, you learned about Physics Engine. We can create physics bodies to use Cocos2d-x API. However, we can only create a circle shape or a box shape. Actually, you have to use complex shapes in real games. In this recipe, you will learn how to create a lot of shapes using Physics Editor.
Physics Editor is created by the same company that created Texture Packer. Physics Editor is a paid application. But you can use a free trial version. If you don't have it, you can download it by visiting the https://www.codeandweb.com/physicseditor
Here, you prepare the image to use this tool. Here, we will use the following image that is similar to a gear. This image's name is gear.png.
