From 8a08507282941e6dd6dfccf63e3356f87e6d0114 Mon Sep 17 00:00:00 2001
From: Torsten Dreyer <Torsten@t3r.de>
Date: Sat, 8 Jan 2011 09:11:46 +0100
Subject: [PATCH] MouseInput: invert y-accel property

Syd Adams:  It could be inverted with nasal for use,
but it feels more natural with positive /forward , negative /
back.
---
 src/Input/FGMouseInput.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Input/FGMouseInput.cxx b/src/Input/FGMouseInput.cxx
index 5d3f7ae2a..b171e021b 100644
--- a/src/Input/FGMouseInput.cxx
+++ b/src/Input/FGMouseInput.cxx
@@ -332,7 +332,7 @@ void FGMouseInput::doMouseMotion (int x, int y)
   }
   if (y != m.y) {
     int delta = y - m.y;
-    yAccelNode->setIntValue( delta );
+    yAccelNode->setIntValue( -delta );
     for (unsigned int i = 0; i < mode.y_bindings[modifiers].size(); i++)
       mode.y_bindings[modifiers][i]->fire(double(delta), double(ysize));
   }
-- 
2.39.5