unity简单示例——自定义脚本特性(只读，滑条，多选框)

包括只读，滑条，多选框

using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
/****************************************************
	作者：cg
	功能：
*****************************************************/
#region 只读
public class MyReadOnlyAttribute:PropertyAttribute
{
}
[CustomPropertyDrawer(typeof(MyReadOnlyAttribute))]
public class MyReadOnlyDrawer : PropertyDrawer
{
    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
    {
        return base.GetPropertyHeight(property, label);
    }
    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        GUI.enabled = false;
        EditorGUI.PropertyField(position, property, label,true);
        GUI.enabled = true;
    }
}
#endregion

#region 滑条
public class MyRangeAttribute : PropertyAttribute
{
    public float Min;//最小值
    public float Max;//最大值

    public MyRangeAttribute(float min, float max)
    {
        this.Min = min;
        this.Max = max;
    }
}
[CustomPropertyDrawer(typeof(MyRangeAttribute))]
public class MyRangeAttributeDrawer : PropertyDrawer
{
    //重载OnGUI方法
    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        MyRangeAttribute myRange = attribute as MyRangeAttribute;

        if (property.propertyType == SerializedPropertyType.Integer)
        {
            EditorGUI.IntSlider(position, property, (int)myRange.Min, (int)myRange.Max, label);
        }
        else if (property.propertyType == SerializedPropertyType.Float)
        {
            EditorGUI.Slider(position, property, myRange.Min, myRange.Max, label);
        }
        else
        {

        }
    }
}
#endregion

#region 多选
public class MultipleBoxAttribute : PropertyAttribute
{

}
[CustomPropertyDrawer(typeof(MultipleBoxAttribute))]
public class MultipleBoxAttributeDrawer : PropertyDrawer
{
    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        property.intValue = EditorGUI.MaskField(position, label, property.intValue, property.enumNames);
    }
}
#endregion