From 09eaaebd64a62342759d0c260c56dcd07aac9611 Mon Sep 17 00:00:00 2001
From: auria <auria@178a84e3-b1eb-0310-8ba1-8eac791a3b58>
Date: Mon, 29 Nov 2010 21:50:45 +0000
Subject: [PATCH] Minor: make fly mode easier to use by preventing kart from
 rolling when turning

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@6780 178a84e3-b1eb-0310-8ba1-8eac791a3b58
---
 src/karts/kart.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/karts/kart.cpp b/src/karts/kart.cpp
index 2786c5de3..12f6c097a 100644
--- a/src/karts/kart.cpp
+++ b/src/karts/kart.cpp
@@ -1142,6 +1142,14 @@ void Kart::updatePhysics(float dt)
             //float orientation = getHeading();
             //m_body->applyCentralImpulse(btVector3(-60.0f*sin(orientation), 0.0, -60.0f*cos(orientation)));
         }
+
+        // dampen any roll while flying, makes the kart hard to control
+        btVector3 velocity = m_body->getAngularVelocity();
+        const float z = velocity.z();
+        if (z > 0.1f)        velocity.setZ(z - 0.1f);
+        else if (z < -0.1f)  velocity.setZ(z + 0.1f);
+        else                 velocity.setZ(0);
+        m_body->setAngularVelocity(velocity);
     }