境界を検出する／移動範囲を制限する
参考：
Best way to stop the camera from at edge of level – Unity Forum
restrict moving object on a plane – Stack Overflow
First Person All-in-One
参考：
First Person All-in-One | Unity Asset Store [Official]
Third Person Controller
参考：
Third Person Controller – Basic Locomotion FREE | Unity Asset Store [Official]
RPG Character Mecanim Animation Pack
参考：
RPG Character Mecanim Animation Pack FREE | Unity Asset Store [Official]
Character Controller Pro
参考：
Character Controller Pro | Unity Asset Store [Official]
Game Kit Controller
参考：
Game Kit Controller | Unity Asset Store [Official]
Game Kit Controller (GKC) v3.02g Release Trailer – YouTube
Game Kit Controller (GKC) Tutorials – YouTube
Fast Travel System
参考：