From a3790c983d8a46d346fec6d4c23e61b4aac4c26b Mon Sep 17 00:00:00 2001
From: Luke Street <luke.street@encounterpc.com>
Date: Wed, 16 Sep 2020 14:53:29 -0400
Subject: [PATCH] CAnimTreeTransition: Handle negative transTimeRem
 (workaround)

---
 Runtime/Character/CAnimTreeTransition.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Runtime/Character/CAnimTreeTransition.cpp b/Runtime/Character/CAnimTreeTransition.cpp
index 8e2c8dd17..5d5c107c2 100644
--- a/Runtime/Character/CAnimTreeTransition.cpp
+++ b/Runtime/Character/CAnimTreeTransition.cpp
@@ -121,9 +121,13 @@ SAdvancementResults CAnimTreeTransition::VAdvanceView(const CCharAnimTime& time)
     res = AdvanceViewForTransitionalPeriod(transTimeRem);
     if (res.x0_remTime != transTimeRem)
       return res;
+
+    // NOTE: URDE can hit an infinite loop if transTimeRem
+    // becomes negative (floating point inaccuracy).
+    // This line was moved into this branch as a workaround.
+    res.x0_remTime = time - transTimeRem;
   }
 
-  res.x0_remTime = time - transTimeRem;
   return res;
 }