Removed extraneous ifdefs of UNITY_2022_1_OR_NEWER, keeping only those necessary to hide the Spline option from Unity Editor versions older than 2022.1.

Author: rajatg-sidefx

Plugins/HoudiniEngineUnity/Editor/UI/HEU_InputNodeUI.cs

@@ -44,9 +44,7 @@ public static class HEU_InputNodeUI
 	private static GUIContent _tilemapColorContent = new GUIContent("Apply Tile color", "If checked, will output a Cd color attribute to point.");
 	private static GUIContent _tilemapOrientationContent = new GUIContent("Apply Tilemap Orientation", "If checked, will offset position by the tilemap position offset, and produce orient/pscale attributes to the points.");
 
-#if UNITY_2022_1_OR_NEWER
 	private static GUIContent _samplingResolutionContent = new GUIContent("Sampling Resolution", "Defines the granularity at which a spline's positional data is sampled and marshalled to Houdini. The lower the value, the closer the fit.");
-#endif
 
 	/// <summary>
 	/// Populate the UI cache for the given input node
@@ -69,9 +67,7 @@ public static void PopulateCache(HEU_InputNode inputNode)
 		inputNode._uiCache._meshSettingsProperty = HEU_EditorUtility.GetSerializedProperty(inputNode._uiCache._inputNodeSerializedObject, "_meshSettings");
 		inputNode._uiCache._tilemapSettingsProperty = HEU_EditorUtility.GetSerializedProperty(inputNode._uiCache._inputNodeSerializedObject, "_tilemapSettings");
 
-#if UNITY_2022_1_OR_NEWER
 		inputNode._uiCache._splineSettingsProperty = HEU_EditorUtility.GetSerializedProperty(inputNode._uiCache._inputNodeSerializedObject, "_splineSettings");
-#endif
 
 		int inputCount = inputNode._uiCache._inputObjectsProperty.arraySize;
 		for (int i = 0; i < inputCount; ++i)

Plugins/HoudiniEngineUnity/Scripts/Asset/HEU_InputNode.cs

@@ -90,10 +90,8 @@ public class HEU_InputNode : ScriptableObject, IHEU_InputNode, IHEU_HoudiniAsset
 	/// <inheritdoc />
 	public HEU_InputInterfaceTilemapSettings TilemapSettings { get { return  _tilemapSettings; }}
 
-#if UNITY_2022_1_OR_NEWER
 	/// <inheritdoc />
     public HEU_InputInterfaceSplineSettings SplineSettings { get { return  _splineSettings; }}
-#endif
 
 	// ========================================================================
 
@@ -122,7 +120,7 @@ internal enum InputObjectType
 #if UNITY_2022_1_OR_NEWER
 		SPLINE,
 #endif
-        TERRAIN,
+		TERRAIN,
 	    BOUNDING_BOX,
 	    TILEMAP
 		}
@@ -228,11 +226,9 @@ public enum InputActions
 	[SerializeField]
 	private HEU_InputInterfaceTilemapSettings _tilemapSettings = new HEU_InputInterfaceTilemapSettings();
 
-#if UNITY_2022_1_OR_NEWER
 	// Spline specific settings:
 	[SerializeField]
 	private HEU_InputInterfaceSplineSettings _splineSettings = new HEU_InputInterfaceSplineSettings();
-#endif
 
 	// Field used in UI only.
 	[SerializeField]
@@ -1763,9 +1759,7 @@ public class HEU_InputNodeUICache
 	public UnityEditor.SerializedProperty _meshSettingsProperty;
 	public UnityEditor.SerializedProperty _tilemapSettingsProperty;
 
-#if UNITY_2022_1_OR_NEWER
     public UnityEditor.SerializedProperty _splineSettingsProperty;
-#endif
 
 #endif
 

Plugins/HoudiniEngineUnity/Scripts/PublicWrappers/IHEU_InputNode.cs

@@ -67,7 +67,7 @@ public enum HEU_InputObjectTypeWrapper
 #if UNITY_2022_1_OR_NEWER
 	SPLINE,
 #endif
-    TERRAIN,
+	TERRAIN,
 	BOUNDING_BOX,
 	TILEMAP
 	};
@@ -114,10 +114,8 @@ public interface IHEU_InputNode
 	/// <summary>Tilemap settings</summary>
 	HEU_InputInterfaceTilemapSettings TilemapSettings { get; }
 
-#if UNITY_2022_1_OR_NEWER
 	/// <summary>Spline settings</summary>
 	HEU_InputInterfaceSplineSettings SplineSettings { get; }
-#endif
 
 	/// <summary>
 	/// Whether or not this is an asset input

Plugins/HoudiniEngineUnity/Scripts/Utility/HEU_InputUtility.cs

@@ -229,8 +229,8 @@ internal static bool CreateInputNodeWithMultiObjects(HEU_SessionBase session, HA
 #if UNITY_SPLINES_INSTALLED
 		if (inputInterfaceType == typeof(HEU_InputInterfaceSpline))
 		{
-            HEU_InputInterfaceSpline splineInterface = inputInterface as HEU_InputInterfaceSpline;
-            splineInterface.Initialize(inputNode.SplineSettings);
+			HEU_InputInterfaceSpline splineInterface = inputInterface as HEU_InputInterfaceSpline;
+			splineInterface.Initialize(inputNode.SplineSettings);
 		}
 #endif