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Packages/com.jbooth.microsplat.core/Scripts/Editor/RenderPipelineDefine.cs

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+//////////////////////////////////////////////////////
+// MicroSplat
+// Copyright (c) Jason Booth
+//////////////////////////////////////////////////////
+
+using System;
+using System.Linq;
+using System.Reflection;
+using System.Collections.Generic;
+using UnityEditor;
+
+#if UNITY_2019_3_OR_NEWER
+
+// installs defines for render pipelines, so we can #if USING_HDRP and do stuff. Can't believe Unity doesn't provide this crap, they
+// really go out of their way to make it hard to work across pipelines.
+
+namespace JBooth.MicroSplat
+{
+   public static class RenderPipelineDefine
+   {
+      private const string HDRP_PACKAGE = "HDRenderPipelineAsset";
+      private const string URP_PACKAGE = "UniversalRenderPipelineAsset";
+
+      public static bool IsHDRP { get; private set; }
+      public static bool IsURP { get; private set; }
+      public static bool IsStandardRP { get; private set; }
+
+      [UnityEditor.Callbacks.DidReloadScripts]
+      private static void OnScriptsReloaded()
+      {
+         IsHDRP = DoesTypeExist(HDRP_PACKAGE);
+         IsURP = DoesTypeExist(URP_PACKAGE);
+
+         if (!(IsHDRP || IsURP))
+         {
+            IsStandardRP = true;
+         }
+
+      }
+
+      public static bool DoesTypeExist(string className)
+      {
+         var foundType = (from assembly in AppDomain.CurrentDomain.GetAssemblies()
+                          from type in GetTypesSafe(assembly)
+                          where type.Name == className
+                          select type).FirstOrDefault();
+
+         return foundType != null;
+      }
+
+      public static IEnumerable<Type> GetTypesSafe(System.Reflection.Assembly assembly)
+      {
+         Type[] types;
+
+         try
+         {
+            types = assembly.GetTypes();
+         }
+         catch (ReflectionTypeLoadException e)
+         {
+            types = e.Types;
+         }
+
+         return types.Where(x => x != null);
+      }
+   }
+}
+
+#endif