/**
    \file 
        TestCullingApplication.h
*/
#include "CEGUIForwardRefs.h"
#include "ExampleApplication.h"
#include "OgreOcclusionCullingSceneManager.h"

Real timeDelay = 0;
#define KEY_PRESSED(_key,_timeDelay, _macro) \
{ \
    if (mInputDevice->isKeyDown(_key) && timeDelay <= 0) \
{ \
    timeDelay = _timeDelay; \
    _macro ; \
} \
}

String mAlgorithmTypeCaptions[OcclusionCullingSceneManager::NUM_RENDERMODES] = 
{
    "Cull Frustum", 
	"Stop and Wait", 
	"Coherent Occlusion Culling"
};

class MouseQueryListener : public ExampleFrameListener, public MouseListener, public MouseMotionListener
{
public:

    MouseQueryListener(RenderWindow* win, Camera* cam, SceneManager *sceneManager, CEGUI::Renderer *renderer,
					   SceneNode* shipNode)
        : ExampleFrameListener(win, cam, false, true), mGUIRenderer(renderer), mShipNode(shipNode)//,  mShutdownRequested(false)
    {

		// Setup default variables
        mCurrentObject = NULL;
        mLMouseDown = false;
        mRMouseDown = false;
        mSceneMgr = sceneManager;

        // Reduce move speed
        mMoveSpeed = 50;
        mRotateSpeed *= 2;
	
		mAlgorithmType = OcclusionCullingSceneManager::RENDER_COHERENT;

		// Register this so that we get mouse events.
        mEventProcessor->addMouseListener(this);
        mEventProcessor->addMouseMotionListener(this);
		mEventProcessor->addKeyListener(this);

		// show overlay
        Overlay* pOver = OverlayManager::getSingleton().getByName("Example/ShadowsOverlay");    
        mAlgorithmInfo = OverlayManager::getSingleton().getOverlayElement("Example/Shadows/ShadowTechniqueInfo");
        //mMaterialInfo = OverlayManager::getSingleton().getOverlayElement("Example/Shadows/MaterialInfo");
        //mInfo = OverlayManager::getSingleton().getOverlayElement("Example/Shadows/Info");

		mAlgorithmInfo->setCaption("Algorithm: " + mAlgorithmTypeCaptions[mAlgorithmType]);
        //mMaterialInfo->setCaption("Current: " + mAtheneMaterials[mCurrentAtheneMaterial]);
        pOver->show();
    } // MouseQueryListener

    ~MouseQueryListener( )
    {
    }

   bool frameEnded(const FrameEvent& evt)
    {
        if (timeDelay >= 0) 
            timeDelay -= evt.timeSinceLastFrame;

        KEY_PRESSED(KC_O, 1, changeAlgorithm());
      
        return ExampleFrameListener::frameStarted(evt) && ExampleFrameListener::frameEnded(evt);        
    }

    /* MouseListener callbacks. */
    virtual void mouseClicked(MouseEvent* e) { }
    virtual void mouseEntered(MouseEvent* e) { }
    virtual void mouseExited(MouseEvent* e)  { }

    // This is when the mouse button goes DOWN.
    virtual void mousePressed(MouseEvent* e);

    // This is when the mouse button is let UP.
    virtual void mouseReleased(MouseEvent* e);

    /* MouseMotionListener callbacks */
    virtual void mouseMoved (MouseEvent *e);
   
    // This is when the mouse is clicked, held and dragged.
    virtual void mouseDragged (MouseEvent *e);
/*
    void keyPressed(KeyEvent* e)
    {
        if(e->getKey() == KC_ESCAPE)
        {
            mShutdownRequested = true;
            e->consume();
            return;
        }

        CEGUI::System::getSingleton().injectKeyDown(e->getKey());
		CEGUI::System::getSingleton().injectChar(e->getKeyChar());
        e->consume();
    }

	void keyReleased(KeyEvent* e)
	{
		CEGUI::System::getSingleton().injectKeyUp(e->getKey());
		e->consume();
	}
	void keyClicked(KeyEvent* e) 
	{
		// Do nothing
		e->consume();
	}

    bool frameEnded(const FrameEvent& evt)
    {
        if (mShutdownRequested)
            return false;
        else
            return ExampleFrameListener::frameEnded(evt);
    }
*/
	 void changeAlgorithm()
    {
        mAlgorithmType = ++mAlgorithmType % OcclusionCullingSceneManager::NUM_RENDERMODES;
        mAlgorithmInfo->setCaption("Algorithm: " + mAlgorithmTypeCaptions[mAlgorithmType]);
    }


protected:
    bool mLMouseDown, mRMouseDown;     // True if the mouse buttons are down
    SceneManager *mSceneMgr;           // A pointer to the scene manager
    SceneNode *mCurrentObject;         // The newly created object
    CEGUI::Renderer *mGUIRenderer;     // cegui renderer
	SceneNode* mShipNode;
//	bool mShutdownRequested;
	int mAlgorithmType;
	OverlayElement *mAlgorithmInfo;
};


class TestCullingApplication : public ExampleApplication
{
public:
    /*TestCullingApplication()
    {

    }*/

protected:
	void createScene(void);

	void createFrameListener(void)
    {
		mFrameListener= new MouseQueryListener(mWindow, mCamera, mSceneMgr, mGUIRenderer, mShipNode);
		mFrameListener->showDebugOverlay(true);
		mRoot->addFrameListener(mFrameListener);
    }

	CEGUI::OgreCEGUIRenderer *mGUIRenderer;
	CEGUI::System *mGUISystem;

private:
	Entity* mShip;
	SceneNode* mShipNode;

/*    String mQuakePk3;
    String mQuakeLevel;

    // Override resource sources (include Quake3 archives)
    void setupResources(void)
    {

        // Load Quake3 locations from a file
        ConfigFile cf;

        cf.load("quake3settings.cfg");

        mQuakePk3 = cf.getSetting("Pak0Location");
        mQuakeLevel = cf.getSetting("Map");

		ExampleApplication::setupResources();
        ResourceManager::addCommonArchiveEx(mQuakePk3, "Zip");

    }*/
    // Override scene manager (use indoor instead of generic)
    void chooseSceneManager(void)
    {
        mSceneMgr = mRoot->getSceneManager(ST_GENERIC);
    }
	
};