init

osa/Com.ForbiddenByte/OSA/Utilities/Scripts/Util/Optimization/ShadowRemover.cs

@@ -0,0 +1,60 @@
+// Pre-2019.1 Unity versions have performance problems with the Shadow script,
+// while 2019.{1,2,3,4} sometimes have problems with displaying an Image+Shadow
+#if UNITY_2019_1_OR_NEWER && !(UNITY_2019_1_0 || UNITY_2019_1_1 || UNITY_2019_1_2 || UNITY_2019_1_3 || UNITY_2019_1_4)
+#define ALLOW_SHADOWS
+#endif
+
+using UnityEngine;
+using UnityEngine.SceneManagement;
+using UnityEngine.UI;
+
+namespace Com.ForbiddenByte.OSA.Util.Optimization
+{
+	/// <summary>
+	/// Simple: If no Unity 2019, no shadow (the shadow will be destroyed). 
+	/// Seems like a lot of Shadow components used cause significant FPS drops
+	/// </summary>
+	[ExecuteInEditMode]
+	public class ShadowRemover : MonoBehaviour
+	{
+		// If not on a compatible unity version, destroy the Shadow script and this script
+#if ALLOW_SHADOWS
+
+#else
+		[SerializeField]
+		[HideInInspector]
+		Shadow _Shadow;
+
+
+		void Awake()
+		{
+			if (!_Shadow)
+				_Shadow = GetComponent<Shadow>();
+
+			if (!Application.isPlaying)
+				return;
+
+			// In play mode, destroy it
+			if (_Shadow)
+			{
+				Destroy(_Shadow);
+				_Shadow = null;
+			}
+			Destroy(this);
+		}
+
+#if UNITY_EDITOR
+		void Update()
+		{
+			// No checks during play mode
+			if (Application.isPlaying)
+				return;
+
+			if (!_Shadow)
+				_Shadow = GetComponent<Shadow>();
+		}
+#endif
+
+#endif
+	}
+}

osa/Com.ForbiddenByte/OSA/Utilities/Scripts/Util/Optimization/ShadowRemover.cs.meta

@@ -0,0 +1,12 @@
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