From 3046aaa361f0fa36095cb85e01c7e7c195a88a73 Mon Sep 17 00:00:00 2001
From: hikerstk <hikerstk@178a84e3-b1eb-0310-8ba1-8eac791a3b58>
Date: Sun, 17 Feb 2013 11:26:52 +0000
Subject: [PATCH] Bugfix: STK would crash if the same kart mesh is used twice
 (e.g. when just copying a kart folder). Thanks to funto for reporting this.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@12499 178a84e3-b1eb-0310-8ba1-8eac791a3b58
---
 src/karts/kart_model.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/karts/kart_model.cpp b/src/karts/kart_model.cpp
index de2ce7a33..dd4ac069a 100644
--- a/src/karts/kart_model.cpp
+++ b/src/karts/kart_model.cpp
@@ -169,7 +169,11 @@ KartModel::~KartModel()
         }
     }
 
-    if(m_is_master && m_mesh != NULL)
+    m_mesh->drop();
+
+    // If there is only one copy left, it's the copy in irrlicht's
+    // mesh cache, so it can be remove.
+    if(m_is_master && m_mesh != NULL && m_mesh->getReferenceCount()==1)
     {
         irr_driver->dropAllTextures(m_mesh);
         irr_driver->removeMeshFromCache(m_mesh);
@@ -351,6 +355,7 @@ bool KartModel::loadModels(const KartProperties &kart_properties)
                full_path.c_str(), kart_properties.getIdent().c_str());
         return false;
     }
+    m_mesh->grab();
     irr_driver->grabAllTextures(m_mesh);
 
     Vec3 min, max;