[译]Unity 实用技巧

// MinMaxAttribute.cs

using UnityEngine;
// ! -> Put this anywhere, but not inside an Editor Folder
// By @febucci : https://www.febucci.com/
public class MinMaxAttribute : PropertyAttribute
{
    public float minLimit = 0;
    public float maxLimit = 1;
 
    public MinMaxAttribute(int min, int max)
    {
        minLimit = min;
        maxLimit = max;
    }
}

// MinMaxDrawer.cs
 
using UnityEngine;
using UnityEditor;
 
// ! -> Put this in an Editor folder
// By @febucci : https://www.febucci.com/
[CustomPropertyDrawer(typeof(MinMaxAttribute))]
public class MinMaxDrawer : PropertyDrawer
{
    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        //Asserts that we're using the MinMax attribute on a Vector2
        UnityEngine.Assertions.Assert.IsTrue(property.propertyType == SerializedPropertyType.Vector2, "Devi usare un vector2 per MinMax");
 
        if (property.propertyType == SerializedPropertyType.Vector2)
        {
 
            MinMaxAttribute minMax = attribute as MinMaxAttribute;
 
            //Writes the variable name on the left
            Rect totalValueRect = EditorGUI.PrefixLabel(position, label);
 
            //The left value, after the variable name
            Rect leftRect = new Rect(totalValueRect.x, totalValueRect.y, 50, totalValueRect.height);
 
            //Rect of the slider
            Rect valueRect = new Rect(leftRect.xMax, totalValueRect.y, totalValueRect.width - leftRect.width * 2 - 4, totalValueRect.height);
 
            //The right value
            Rect rightRect = new Rect(totalValueRect.xMax - leftRect.width - 2, totalValueRect.y, leftRect.width, totalValueRect.height);
 
            float minValue = property.vector2Value.x; //Current x
            float maxValue = property.vector2Value.y; //Current y
 
            EditorGUI.MinMaxSlider(valueRect, ref minValue, ref maxValue, minMax.minLimit, minMax.maxLimit);
 
            //Assigns the value to the property
            property.vector2Value = new Vector2(minValue, maxValue);
 
            EditorGUI.LabelField(leftRect, minValue.ToString("F3")); //Writes the value on the left
            EditorGUI.LabelField(rightRect, maxValue.ToString("F3")); //Writes the value on the right
        }
        else
        {
            GUI.Label(position, "You can use MinMax only on a Vector2!");
        }
    }
}

// febucci unitytips unity fold entire hierarchy gameobjects

using UnityEngine;
using UnityEditor;
 
public class EditorUtils : Editor
{
    //This code is released under the MIT license: https://opensource.org/licenses/MIT
    [MenuItem("Window/Fold all")]
    static void UnfoldSelection()
    {
        EditorApplication.ExecuteMenuItem("Window/General/Hierarchy");
        var hierarchyWindow = EditorWindow.focusedWindow;
        var expandMethodInfo = hierarchyWindow.GetType().GetMethod("SetExpandedRecursive");
        foreach (GameObject root in UnityEngine.SceneManagement.SceneManager.GetActiveScene().GetRootGameObjects())
        {
            expandMethodInfo.Invoke(hierarchyWindow, new object[] { root.GetInstanceID(), false });
        }
    }
}

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

public class PrivateMonoBehaviour : MonoBehaviour 
{
    private int m_privateVal = 0;
    private Vector3 m_privateV3 = Vector3.one;
}