Book Image

Unity Character Animation with Mecanim

By : Jamie Dean
Book Image

Unity Character Animation with Mecanim

By: Jamie Dean

Overview of this book

Game animation for independent developers has taken a giant leap forward with Unity 5's Mecanim toolset, which streamlines the import/export, retargeting, and many other aspects of the character animation workflow. Unity Character Animation with Mecanim is a great primer for getting to know the nuts and bolts of Mecanim and other character animation related tools in Unity 5. It offers you step-by-step instructions for preparing and exporting rigged models and animation sequences from commonly used 3D packages, such as Maya, 3ds Max and Blender. This book explores the new set of animation tools introduced with Mecanim in Unity 5. Approaching its subject matter through a typical genre–a zombie action game, character animation techniques are explored using real examples of player input and interaction, enemy behavior, and other aspects of game dynamics. As the book progresses, the reader will understand how these elements fit together in a small game development workflow. We will begin with a demonstration of the process of getting a rigged character into Unity 5 and setting it up to use provided animation sequences. We will also consider a few industry standard 3D packages and how these can be used to rig a humanoid character for use in Unity 5. We will demonstrate the retargeting capabilities of Mecanim’s Humanoid Animation type by adjusting motion sequences to fit disparate character types in our game. After this, we will look at Ragdoll physics and the implementation of this commonly used technique in a Mecanim workflow. The book culminates with a thorough dissection of the enemy character AI script incorporating the Mecanim elements detailed in the previous chapters. Unity Character Animation with Mecanim will provide you with a detailed exploration of the interaction between game development and character animation, and will broaden your understanding of the rich animation toolset within Unity 5
Table of Contents (16 chapters)
Unity Character Animation with Mecanim
About the Author
About the Reviewers
Free Chapter
The Zombie Attacks!

Implementing range detection

Our work in Chapter 6, Talking Heads, left us with an enemy that becomes aware of the player on a button click. Let's begin where we left off and improve this to make a smarter enemy that automatically attacks the player when he comes within a certain range.

Looking at the scene

We will start by opening our scene:

  1. In the Unity project, open Chapter9_Start by navigating to File | Open Scene… | Chapter9_Start.

    The scene consists of the main office geometry and a single female zombie character. The FPSController prefab will allow us to navigate the scene.

  2. Press the Play button in the top center of the Unity interface.

The female zombie is currently set up to idle in place. We can approach and nothing happens at this point:

In the next step, we will add the zombie's AI script and allow her to detect the player.

Adding the initial AI script

We are starting with the zombie's script that we completed in Chapter 6, Talking Heads. The enemy is able to target the player, but we...