#include "ExampleApplication.h"
#include "math.h"

SceneNode *lightNode;

class TutorialFrameListener : public ExampleFrameListener
{
public:
    TutorialFrameListener(RenderWindow* win, Camera* cam, SceneManager *sceneMgr)
        : ExampleFrameListener(win, cam, false, false)
    {
    }

    bool frameStarted(const FrameEvent &evt)
    {
	static double r=0;
	r+=evt.timeSinceLastFrame;
//        lightNode->translate(Vector3(0,-10 * evt.timeSinceLastFrame, 0));
	lightNode->setPosition(Vector3(50*cos(r), -100*sin(r/5), 50*sin(r)));

        return ExampleFrameListener::frameStarted(evt);
    }
private:
};


class TutorialApplication : public ExampleApplication
{
protected:
public:
    TutorialApplication()
    {
    }

    ~TutorialApplication()
    {
    }
protected:
    void createCamera(void)
    {
        // create camera
        mCamera = mSceneMgr->createCamera("PlayerCam");
        mCamera->setNearClipDistance(5);
        mCamera->setPosition(Vector3(0,10,500));
        mCamera->lookAt(Vector3(0,0,0));
    }

    void createScene(void)
    {
	mSceneMgr->setAmbientLight(ColourValue(0.3,0.3,0.3));
	Entity *head = mSceneMgr->createEntity("head", "ogrehead.mesh");
	SceneNode *node = mSceneMgr->getRootSceneNode()->createChildSceneNode("OgreHeadNode", Vector3(0,0,0));
	node->attachObject(head);
	mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox");
	// light
	Light *light = mSceneMgr->createLight("Light1");
	light->setType(Light::LT_POINT);
	light->setPosition(Vector3(0,100,0));	
	light->setDiffuseColour(1.0, 0.0, 0.0);
	light->setSpecularColour(1.0, 0.0, 0.0);
	// make the light "visible"
	BillboardSet *bbs = mSceneMgr->createBillboardSet("bb", 1);
	bbs->createBillboard(Vector3::ZERO, ColourValue(1.0,0.0,0.0));
	bbs->setMaterialName("Examples/Flare");

	lightNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("LightNode", Vector3(0,100,0));

	lightNode->attachObject(bbs);
	lightNode->attachObject(light);
	light->setPosition(0.0,0.0,0.0);
	
    }

    void createFrameListener(void)
    {
        // create frame listener
        mFrameListener = new TutorialFrameListener(mWindow, mCamera, mSceneMgr);
        mRoot->addFrameListener(mFrameListener);
    }
};

#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
#define WIN32_LEAN_AND_MEAN
#include "windows.h"

INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
#else
int main(int argc, char **argv)
#endif
{
    // Create application object
    TutorialApplication app;

    try {
        app.go();
    } catch( Exception& e ) {
#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
        MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occurred!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
#else
        fprintf(stderr, "An exception has occurred: %s\n",
                e.getFullDescription().c_str());
#endif
    }

    return 0;
}