Introducing Timeline
The Timeline system is a built-in Unity tool. The Unity Timeline is a way to play (and blend) content in a linear sequence. The easiest way to think about this to begin with is to imagine an animation clip or an audio clip. Both are examples of content that plays linearly. But Timeline can do more. Imagine, for example, you wanted to execute a series of scripts in order over a period of time. Timeline can do that, too.
Chiefly, you would use Timeline to create and edit cut scenes, cinematic content, gameplay sequences, audio sequences, and complex particle effects. You can move different types of clips around the Timeline, change when they start and end, decide how they should blend and behave with other clips on a track, and other things as well. In this chapter, we are just going to focus on creating a simple animation with a sound effect.
"But wait," you may be saying, "I thought Unity already has an animation system." Yes, you are...
