Unity does not create cubes in startup state

demand

Select an object in the Snece, press the shortcut keys to add a child cube to the object, and then manually adjust the Cube’s BoxCollider. Once the adjustment is complete, cancel the meshReaderer. It’s used for collisions when the camera moves.

The effect

implementation

Create a c# script in the editor folder

using UnityEngine;
using UnityEditor;

public class AddBoxCollider : Editor
{
    // Add to unity's menu bar, & C shortcut ALT+C
    [MenuItem("Tool/AddBoxCollider &C")]
    public static void FAddBoxCollider()
    {
        BoxCollider now;
        // GameObject is selected
        if(Selection.activeGameObject ! =null)
        {
            if (Selection.activeGameObject.GetComponent<BoxCollider>() == null)
            {
                now = Selection.activeGameObject.AddComponent<BoxCollider>();
            }
            else
            {
                now = Selection.activeGameObject.GetComponent<BoxCollider>();
            }

            // Create a child object cube
            GameObject cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
            cube.transform.parent = Selection.activeGameObject.transform;
            cube.transform.localScale = now.size;
            cube.transform.localPosition = now.center;
            //cube.transform.localRotation = Quaternion.Euler(Vector3.zero);
            cube.transform.localEulerAngles = Vector3.zero;
            cube.name = Selection.activeGameObject.name + "collider";
            //cube.transform.parent = 

            // Delete the original object's BoxCollider
            DestroyImmediate(now);
        }
        else
        {
            Debug.LogWarning("must choose someone"); }}}Copy the code