Unity script API - transform transform

Every object in the scene has a Transform. Used to store and control the position of objects 、 Rotate and scale . every last Transform You can have a parent , Allows you to apply location hierarchically 、 Rotate and scale . Can be in Hierarchy Panel view hierarchy . They also support counters （enumerator）, So you can loop through sub objects .

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

/// <summary>
/// Transfrom  Provides search （ Father 、 root 、 Son ） Transform component functions 、 Change position 、 angle 、 Size function 
/// </summary>
public class TransfromDemo : MonoBehaviour
{
    public Transform tf;
    private void OnGUI()
    {
        if (GUILayout.Button("foreach -- transfrom"))
        {
            // Every object in the scene has a Transfrom, Used to store and manipulate the position of objects 、 rotate 、 The zoom .
            // every last Transfrom You can have a parent , Allows you to apply location hierarchically 、 Rotate and scale .
            // Can be in Hierarchy Panel view hierarchy . They also support calculators , So you can loop through sub objects  
            foreach (Transform child in this.transform)
            {
                //child Transform components for each sub object 
                print(child.name);
            }
        }

        if (GUILayout.Button("root"))
        {
            // Get the root object transformation component 
            Transform rootTF = this.transform.root;
            Debug.Log(rootTF.name);
        }

        if (GUILayout.Button("parent"))
        {
            // Get the parent object transformation component 
            Transform parentTF = this.transform.parent;
            Debug.Log(parentTF.name);
        }

        if (GUILayout.Button("Setparent"))
        {
            // Set parent 
            // The position of the current object   As world coordinates position
            //this.transform.SetParent(tf,true);

            // The position of the current object   As localPosition
            this.transform.SetParent(tf,false);
        }

        if (GUILayout.Button("Find"))
        {
            // Get sub objects by name 
            Transform tf = this.transform.Find(" Sub object name ");
            Debug.Log(tf.name);

            Transform tf1 = this.transform.Find(" Sub object name / Sub object name ");
            Debug.Log(tf1.name);
        }

        if (GUILayout.Button("GetChild"))
        {
            int count = this.transform.childCount;
            // Get sub objects according to the index    Cannot acquire grandchildren objects 
            for (int i = 0;i < count;i++) 
            { 
                Transform childTf = this.transform.GetChild(i);
            }
        }

        // practice ： Find sub objects when the level is unknown 
        

        if (GUILayout.Button("pos / scale"))
        {
            // The position of an object relative to the origin of the world coordinate system 
            //this.transform.position;

            // The position of the object relative to the pivot point of the parent object 
            //this.transform.localPosition;

            // Scale relative to parent   1  2  1
            //this.transform.localScale;

            // Understood as a ： Scale the object to the model （ Self scaling  *  Scale of parent object ）
            //this.transfrom.lossyScale
            // Such as ： The parent object localScale by 3   Current object localScale by 2
            //    lossyScale Then for 6
        }


        if (GUILayout.Button("Translate"))
        {
            // To its own coordinate system  Z Axis   Move 1 rice 
            this.transform.Translate(0, 0, 1);

            // To the world coordinate system  Z Axis   Move 1 rice 
            //this.transform.Translate(0, 0, 1, Space.World);
        }

        if (GUILayout.Button("Rotate"))
        {
            // To its own coordinate system  y Axis   rotate 10 degree 
            //this.transform.Rotate(0, 10, 0);

            // To the world coordinate system  y Axis   rotate 10 degree 
            this.transform.Rotate(0, 10, 0, Space.World);
        }

        if (GUILayout.RepeatButton("RotateAround"))
        {
            // To the world coordinate system   Around the y Shaft rotation 
            transform.RotateAround(Vector3.zero, Vector3.up, 1);
        }
    }

}