チュートリアル
How to Talk to NPCs! or Interact with any Object, Open Doors, Push Buttons (Code Monkey)
How to Make a Physics Pickup System in 3 Minutes (Rytech)
How to Make a Flexible Interaction System in 2 Minutes (Rytech)
Advanced Interaction System
動画：
入手：
Advanced Interaction System | Unity Asset Store [Official]
Point Detection 3D
動画：
入手：