Starting with Coding Physics
Working with game physics is fun, and Unity’s physics engines make it super easy. Physics defines physical properties of how objects interact with each other or in response to external forces. Unity’s powerful physics engines allow you to assign physical properties to your game objects for consistent, realistic gameplay. There are two physics engines, one for 2D and another for 3D. Though they are implemented with different components such as Box Collider 2D and Box Collider 3D, they work much the same way. In this chapter, you will create a simple game to learn how to set up the physical properties of 3D game objects, then add scripting for more complex, interactive behavior.
A game object ...