From 01b55f97c4c6254ec8f8be46c181661ca43ee903 Mon Sep 17 00:00:00 2001
From: Jason Watkins <jason-watkins@outlook.com>
Date: Tue, 5 May 2015 10:23:03 -0700
Subject: [PATCH] Fixed bug in handling of CTRL command

Several of the values were not checked for the "don't change" sentinel value.
---
 xpcPlugin/MessageHandlers.cpp | 37 +++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/xpcPlugin/MessageHandlers.cpp b/xpcPlugin/MessageHandlers.cpp
index 85f295b..17e5cb0 100644
--- a/xpcPlugin/MessageHandlers.cpp
+++ b/xpcPlugin/MessageHandlers.cpp
@@ -195,20 +195,33 @@ namespace XPC
 			spdbrk = *((float*)(buffer + 27));
 		}
 
-		float thrArray[8];
-		for (int i = 0; i < 8; ++i)
-		{
-			thrArray[i] = thr;
-		}
 
-		DataManager::Set(DREF_YokePitch, pitch, aircraft);
-		DataManager::Set(DREF_YokeRoll, roll, aircraft);
-		DataManager::Set(DREF_YokeHeading, yaw, aircraft); 
-		DataManager::Set(DREF_ThrottleSet, thrArray, 8, aircraft);
-		DataManager::Set(DREF_ThrottleActual, thrArray, 8, aircraft);
-		if (aircraft == 0)
+		if (pitch < -999.5 || pitch > -997.5)
 		{
-			DataManager::Set("sim/flightmodel/engine/ENGN_thro_override", thrArray, 1);
+			DataManager::Set(DREF_YokePitch, pitch, aircraft);
+		}
+		if (roll < -999.5 || roll > -997.5)
+		{
+			DataManager::Set(DREF_YokeRoll, roll, aircraft);
+		}
+		if (yaw < -999.5 || yaw > -997.5)
+		{
+			DataManager::Set(DREF_YokeHeading, yaw, aircraft);
+		}
+		if (thr < -999.5 || thr > -997.5)
+		{
+
+			float thrArray[8];
+			for (int i = 0; i < 8; ++i)
+			{
+				thrArray[i] = thr;
+			}
+			DataManager::Set(DREF_ThrottleSet, thrArray, 8, aircraft);
+			DataManager::Set(DREF_ThrottleActual, thrArray, 8, aircraft);
+			if (aircraft == 0)
+			{
+				DataManager::Set("sim/flightmodel/engine/ENGN_thro_override", thrArray, 1);
+			}
 		}
 		if (gear != -1)
 		{