From 750ac90fa29efb54e4d86beed69bc23e4a6d53a7 Mon Sep 17 00:00:00 2001
From: Jaredl-Dev <260281143+Jaredl-Dev@users.noreply.github.com>
Date: Mon, 24 Aug 2026 14:05:32 -0700
Subject: [PATCH] Fix low-acceleration movement at 60Hz

---
 .../Source/GameLogic/Object/Update/PhysicsUpdate.cpp     | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/GeneralsMD/Code/GameEngine/Source/GameLogic/Object/Update/PhysicsUpdate.cpp b/GeneralsMD/Code/GameEngine/Source/GameLogic/Object/Update/PhysicsUpdate.cpp
index 55812a5298e..ce591cd4f83 100644
--- a/GeneralsMD/Code/GameEngine/Source/GameLogic/Object/Update/PhysicsUpdate.cpp
+++ b/GeneralsMD/Code/GameEngine/Source/GameLogic/Object/Update/PhysicsUpdate.cpp
@@ -669,8 +669,17 @@ UpdateSleepTime PhysicsBehavior::update()
 
 		// when vel gets tiny, just clamp to zero
 		const Real THRESH = 0.001f;
+#if defined(GENERALS_ONLINE_HIGH_FPS_SERVER)
+		// Info: At 60Hz, motive acceleration can be smaller than THRESH and must accumulate across frames.
+		if (!isMotive())
+		{
+			if (fabsf(m_vel.x) < THRESH) m_vel.x = 0.0f;
+			if (fabsf(m_vel.y) < THRESH) m_vel.y = 0.0f;
+		}
+#else
 		if (fabsf(m_vel.x) < THRESH) m_vel.x = 0.0f;
 		if (fabsf(m_vel.y) < THRESH) m_vel.y = 0.0f;
+#endif
 		if (fabsf(m_vel.z) < THRESH) m_vel.z = 0.0f;
 
 		m_velMag = INVALID_VEL_MAG;