fixed a bug in CBillboardTextSceneNode::setText, the mesh data text was not cleared

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@746 dfc29bdd-3216-0410-991c-e03cc46cb475

changes.txt

 Changes in version 1.4 (... 2007)
 
+ - Fixed a bug in CBillboardTextSceneNode::setText where the old text was not cleared.
+
  - IGUIElement now calls getter and setter functions when serializing, 
    in case people override them.
 

source/Irrlicht/CTextSceneNode.cpp

@@ -159,6 +159,13 @@ void CBillboardTextSceneNode::setText(const wchar_t* text)
 
 	Symbol.clear();
 
+	// clear mesh
+	for (u32 j=0; j < Mesh->getMeshBufferCount(); ++j)
+	{
+		((SMeshBuffer*)Mesh->getMeshBuffer(j))->Indices.clear();
+		((SMeshBuffer*)Mesh->getMeshBuffer(j))->Vertices.clear();
+	}
+
 	if (!Font)
 		return;