Common API day03 of unity script

Commonly used API：Component、Transform、GameObject、Object、Time

1、API（Application Programming Interface）: Application programming interface , Are some predefined functions .

2、Unity The engine provides rich components and class libraries , It provides great convenience for developers , Master and use these API It is very important to improve the efficiency of game development .

Component:

Common properties ：gameObject、transform、collider、renderer......

Common methods ：GetComponent、GetComponentInChildren、GetComponentInParent......

Transfrom:

Common properties ：position、localPosition、parent、forward......

Common methods ：Translate、Rotate、TransformPoint、Find、SetSiblingIndex......

GameObject:

Common properties ：transform、activeInHierarchy、activeSelf、tag......

Common methods ：AddComponent、Find、FindGameObjectsWithTag、Object.FindObjectOfType......

Object:

Common properties ：name......

Common methods ：Instantiate、Destroy、FindObjectOfType、FindObjectsOfType......

Time class ：

1、 from Unity Interface for obtaining time information

2、 Common properties ：

     time： The time taken from the beginning of the game to the present

     timeScale： Time scaling

     deltaTime： In seconds , Represents the elapsed time of each frame

     unscaledDeltaTime： Elapsed time per frame unaffected by scaling