com.misaki.shader-gui/Editor/Helpers/MaterialPropertyHelpers.cs

using System;
using UnityEditor;
using UnityEngine;

namespace Misaki.ShaderGUI
{
    public static class MaterialPropertyHelpers
    {
        public static bool GetBooleanValue(this MaterialProperty materialProperty)
        {
#if UNITY_6000_1_OR_NEWER
            if (materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Float || materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Range)
#else
            if (materialProperty.type == MaterialProperty.PropType.Float || materialProperty.type == MaterialProperty.PropType.Range)
#endif
            {
                return !Mathf.Approximately(materialProperty.floatValue, 0.0f);
            }

#if UNITY_6000_1_OR_NEWER
            if (materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Int)
#else
            if (materialProperty.type == MaterialProperty.PropType.Int)
#endif
            {
                return materialProperty.intValue != 0;
            }

            throw new NotSupportedException("Property type is not supported.");
        }

        public static T GetEnumValue<T>(this MaterialProperty materialProperty) where T : Enum
        {
#if UNITY_6000_1_OR_NEWER
            if (materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Float || materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Range)
#else
            if (materialProperty.type == MaterialProperty.PropType.Float || materialProperty.type == MaterialProperty.PropType.Range)
#endif
            {
                return (T)Enum.ToObject(typeof(T), (int)materialProperty.floatValue);
            }

#if UNITY_6000_1_OR_NEWER
            if (materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Int)
#else
            if (materialProperty.type == MaterialProperty.PropType.Int)
#endif
            {
                return (T)Enum.ToObject(typeof(T), materialProperty.intValue);
            }

            throw new NotSupportedException("Property type is not supported.");
        }
    }
}