Add fade-in/fade-out support to the cutscene

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@11331 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/modes/cutscene_world.cpp

@@ -30,8 +30,8 @@
 #include "karts/kart_properties.hpp"
 #include "modes/overworld.hpp"
 #include "physics/physics.hpp"
+#include "states_screens/cutscene_gui.hpp"
 #include "states_screens/main_menu_screen.hpp"
-#include "states_screens/race_gui_base.hpp"
 #include "tracks/track.hpp"
 #include "tracks/track_object.hpp"
 #include "tracks/track_object_manager.hpp"
@@ -56,6 +56,8 @@ void CutsceneWorld::init()
 {
     World::init();
     
+    dynamic_cast<CutsceneGUI*>(m_race_gui)->setFadeLevel(1.0f);
+    
     m_duration = -1.0f;
     
     //const btTransform &s = getTrack()->getStartTransform(0);
@@ -136,6 +138,19 @@ void CutsceneWorld::update(float dt)
 {
     m_time += dt;
     
+    if (m_time < 2.0f)
+    {
+        dynamic_cast<CutsceneGUI*>(m_race_gui)->setFadeLevel(1.0f - m_time / 2.0f);
+    }
+    else if (m_time > m_duration - 2.0f)
+    {
+        dynamic_cast<CutsceneGUI*>(m_race_gui)->setFadeLevel((m_time - (m_duration - 2.0f)) / 2.0f);
+    }
+    else
+    {
+        dynamic_cast<CutsceneGUI*>(m_race_gui)->setFadeLevel(0.0f);
+    }
+    
     World::update(dt);
     World::updateTrack(dt);
     
@@ -227,3 +242,12 @@ RaceGUIBase::KartIconDisplayInfo* CutsceneWorld::getKartsDisplayInfo()
 void CutsceneWorld::moveKartAfterRescue(AbstractKart* kart)
 {
 }   // moveKartAfterRescue
+
+//-----------------------------------------------------------------------------
+
+void CutsceneWorld::createRaceGUI()
+{
+    m_race_gui = new CutsceneGUI();
+}
+    
+    

src/modes/cutscene_world.hpp

@@ -45,7 +45,7 @@ class CutsceneWorld : public World
     
     void abortCutscene()
     {
-        m_duration = 0.0f;
+        m_duration = m_time + 2.0f;
     }
     
 public:
@@ -71,10 +71,7 @@ public:
     virtual void kartHit(const int kart_id) OVERRIDE;
     virtual void update(float dt) OVERRIDE;
 
-    virtual void createRaceGUI() OVERRIDE
-    {
-        m_race_gui = NULL;
-    }
+    virtual void createRaceGUI() OVERRIDE;
     
     virtual void enterRaceOverState() OVERRIDE;
 

src/states_screens/cutscene_gui.cpp

@@ -0,0 +1,47 @@
+//
+//  SuperTuxKart - a fun racing game with go-kart
+//  Copyright (C) 2012 Marianne Gagnon
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 3
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+#include "graphics/irr_driver.hpp"
+#include "states_screens/cutscene_gui.hpp"
+
+CutsceneGUI::CutsceneGUI()
+{
+    m_fade_level = 0.0f;
+}
+
+CutsceneGUI::~CutsceneGUI()
+{
+    
+}
+    
+void CutsceneGUI::renderGlobal(float dt)
+{
+    if (m_fade_level > 0.0f)
+    {
+        irr_driver->getVideoDriver()->draw2DRectangle(video::SColor(m_fade_level*255, 0,0,0),
+                                                      core::rect<s32>(0, 0,
+                                                                      UserConfigParams::m_width,
+                                                                      UserConfigParams::m_height));
+    }
+}
+
+void CutsceneGUI::renderPlayerView(const AbstractKart *kart)
+{
+    
+}
+

src/states_screens/cutscene_gui.hpp

@@ -0,0 +1,63 @@
+//
+//  SuperTuxKart - a fun racing game with go-kart
+//  Copyright (C) 2012 Marianne Gagnon
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 3
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+#ifndef HEADER_RACE_GUI_HPP
+#define HEADER_RACE_GUI_HPP
+
+#include <string>
+#include <vector>
+
+#include <irrString.h>
+using namespace irr;
+
+#include "config/player.hpp"
+#include "states_screens/race_gui_base.hpp"
+#include "utils/cpp2011.h"
+
+class AbstractKart;
+class InputMap;
+class Material;
+class RaceSetup;
+
+/**
+  * \brief Handles the overlay for cutscenes
+  * \ingroup states_screens
+  */
+class CutsceneGUI : public RaceGUIBase
+{
+private:
+
+    float m_fade_level;
+
+public:
+
+     CutsceneGUI();
+    ~CutsceneGUI();
+    
+    void setFadeLevel(float level) { m_fade_level = level; }
+    
+    virtual void renderGlobal(float dt);
+    virtual void renderPlayerView(const AbstractKart *kart);
+    
+    virtual const core::dimension2du getMiniMapSize() const OVERRIDE
+    {
+        return core::dimension2du(1,1);
+    }
+};   // RaceGUI
+
+#endif