From 7da28c9aa9d7105fb0208709f73f8e79852bf716 Mon Sep 17 00:00:00 2001
From: Jeremy Pritts <49847914+ds5678@users.noreply.github.com>
Date: Wed, 1 Mar 2023 22:38:57 -0500
Subject: [PATCH] Resolve #752

---
 .../BlendTreeExtensions.cs                                | 6 ++++--
 .../BlendTreeNodeConstantExtensions.cs                    | 8 +++++---
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeExtensions.cs b/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeExtensions.cs
index bab1a0907..cec4801a5 100644
--- a/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeExtensions.cs
+++ b/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeExtensions.cs
@@ -33,8 +33,10 @@ namespace AssetRipper.SourceGenerated.Extensions
 			childMotion.TimeScale = 1.0f;
 			childMotion.CycleOffset = node.CycleOffset;
 
-			uint directID = node.GetDirectBlendParameter(childIndex);
-			childMotion.DirectBlendParameter?.CopyValues(controller.TOS_C91[directID]);
+			if(node.TryGetDirectBlendParameter(childIndex, out uint directID))
+			{
+				childMotion.DirectBlendParameter?.CopyValues(controller.TOS_C91[directID]);
+			}
 
 			childMotion.Mirror = node.Mirror;
 
diff --git a/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeNodeConstantExtensions.cs b/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeNodeConstantExtensions.cs
index 37cb27b14..d1ab6a4fd 100644
--- a/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeNodeConstantExtensions.cs
+++ b/Source/AssetRipper.SourceGenerated.Extensions/BlendTreeNodeConstantExtensions.cs
@@ -49,13 +49,15 @@ namespace AssetRipper.SourceGenerated.Extensions
 			return 1.0f;
 		}
 
-		public static uint GetDirectBlendParameter(this IBlendTreeNodeConstant constant, int index)
+		public static bool TryGetDirectBlendParameter(this IBlendTreeNodeConstant constant, int index, out uint parameter)
 		{
 			if (constant.Has_BlendDirectData() && constant.GetBlendType() == BlendTreeType.Direct)
 			{
-				return constant.BlendDirectData.Data.m_ChildBlendEventIDArray[index];
+				parameter = constant.BlendDirectData.Data.m_ChildBlendEventIDArray[index];
+				return true;
 			}
-			return 0;
+			parameter = default;
+			return false;
 		}
 
 		public static bool IsBlendTree(this IBlendTreeNodeConstant constant) => constant.ChildIndices.Length > 0;