Add sample implementatiomn for ticket 263, add text to hover over karts, in follow the leader

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@11242 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/modes/follow_the_leader.cpp

@@ -20,12 +20,16 @@
 #include "audio/music_manager.hpp"
 #include "challenges/unlock_manager.hpp"
 #include "config/user_config.hpp"
+#include "graphics/irr_driver.hpp"
+#include "guiengine/scalable_font.hpp"
 #include "items/powerup_manager.hpp"
 #include "karts/abstract_kart.hpp"
 #include "states_screens/race_gui_base.hpp"
 #include "tracks/track.hpp"
 #include "utils/translation.hpp"
 
+#include <ISceneManager.h>
+
 //-----------------------------------------------------------------------------
 FollowTheLeaderRace::FollowTheLeaderRace() : LinearWorld()
 {
@@ -48,6 +52,24 @@ FollowTheLeaderRace::~FollowTheLeaderRace()
 {
 }
 
+//-----------------------------------------------------------------------------
+void FollowTheLeaderRace::init()
+{
+    LinearWorld::init();
+    
+    core::dimension2d<u32> textsize = GUIEngine::getFont()->getDimension(_("Leader"));
+    scene::ISceneManager* sm = irr_driver->getSceneManager();
+    sm->addBillboardTextSceneNode(GUIEngine::getFont(),
+                                  _("Leader"),
+                                  getKart(0)->getNode(),
+                                  core::dimension2df(textsize.Width/55.0f,
+                                                     textsize.Height/55.0f),
+                                  core::vector3df(0.0f, 1.5f, 0.0f),
+                                  -1 /* id */,
+                                  video::SColor(255, 255, 225, 0),
+                                  video::SColor(255, 255, 89, 0));
+}
+
 #if 0
 #pragma mark -
 #pragma mark clock events