Creating event-driven transitions in Mecanim

- Right now what we've done is to simply…trigger this animation on the start…when we enter this scene or begin playing.…This animation of the engine, for example,…simply starts in.…I'm going to change that to be stopped…and in a trigger on the engine,…so we have to contact a volume to start it up.…At the end it appears to come to life…when our player gets close.…I've opened up my 05_03 start scene,…and I'll select my Engine prefab.…In here, I'll add on a new component.…Clicking on Add Component and choosing Physics…and Sphere Collider.…

I'll check Is Trigger and bring the radius of this out to 2.…Now I've got a larger collider,…and if you'd like you can pull it over a little bit on the Z…to be more centered on the engine.…What we've got now is this spherical volume…that won't bound the player.…Instead, this spherical volume will record a contact…with the player, a collision in Unity parlance.…We can record or notice entry into the volume…and also exit.…Now go into Mecanim and get some transition set up…as well as a blank or motionless state.…