In this video, I will talk about 2 very important methods while learning game programming with Unity3D, which is START and Update. Besides, a quantity that cannot be ignored when learning game programming with Unity3D is Time.deltaTime .When you understand these 3 elements of Unity3D, your learning to program games later will become a lot simpler and easier. If you find the video useful, don't hesitate to like, share or leave comments. to give your moral support to Team UDEV.