#include "ExampleApplication.h"

SceneNode *lightNode;
float t;

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

    bool frameStarted(const FrameEvent &evt)
    {
        // add tutorial code here:
        // ...
		int r = 30;
		int d = 120;
		t += evt.timeSinceLastFrame;
		lightNode->setPosition(r*sin(10*t), r*cos(10*t), sin(3*t)*d);

        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)
    {
		t = 0.0;
		mSceneMgr->setAmbientLight(ColourValue(0.3,0.3,0.3));

		//create first entity
		Entity *head = mSceneMgr->createEntity("head", "ogrehead.mesh");

		//create a scene node to attach the head to
		SceneNode *node = mSceneMgr->getRootSceneNode()->createChildSceneNode("OgreHeadNode",
				Vector3(0,0,0));
		//attach the ogre head
		node->attachObject(head);

		mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox");

		Light *light = mSceneMgr->createLight("Light1");
		light->setType(Light::LT_POINT);
		light->setPosition(Vector3(0, 0, 0));
		light->setDiffuseColour(1.0, 1.0, 1.0);
		light->setSpecularColour(1.0, 1.0, 1.0);

		//create billboard
		BillboardSet *bbs = mSceneMgr->createBillboardSet("bb", 1);
		bbs->createBillboard(Vector3::ZERO, ColourValue(1.0, 1.0, 1.0));
		bbs->setMaterialName("Examples/Flare");

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

		lightNode->attachObject(bbs);
		lightNode->attachObject(light);

    }

    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;
}