#include "ExampleApplication.h"

#include <NxOgre.h>
#include <NxOgreOGRE3D.h>

class BloodyMessTutorial5Listener : public ExampleFrameListener
{ 
public:
    BloodyMessTutorial5Listener(RenderWindow *win, Camera *cam, OGRE3DRenderSystem*    pRenderSystem, OGRE3DKinematicBody* pKB) 
        : ExampleFrameListener(win, cam)
    {
        mTimeController = NxOgre::TimeController::getSingleton();
        mRenderSystem = pRenderSystem;
        mKB = pKB;
        mYPos = mKB->getGlobalPosition().y;
        mDown = false;
    }

    bool frameStarted(const FrameEvent& evt)
    {
        mTimeController->advance(evt.timeSinceLastFrame);

        if(mDown)
            mYPos -= 2.5f * evt.timeSinceLastFrame;
        else
            mYPos += 2.5f * evt.timeSinceLastFrame;

        // Order the KinematicBody to move to the specified position
        mKB->moveGlobalPosition(NxOgre::Vec3(0, mYPos, 0));

        if(mYPos > 20)
            mDown = true;
        else if(mYPos < 0)
            mDown = false;

        // Space key hit?
        if(mKeyboard->isKeyDown(OIS::KC_SPACE) && mTimeUntilNextToggle <= 0)
        {
            // Create a new Cube and apply some force to it
            mCube = mRenderSystem->createBody(new NxOgre::Box(1, 1, 1), NxOgre::Vec3(mCamera->getPosition().x, 
                            mCamera->getPosition().y, mCamera->getPosition().z), "cube.1m.mesh"); 
            mCube->addForce(NxOgre::Vec3(mCamera->getDirection().x * 10000, mCamera->getDirection().y * 10000,
                            mCamera->getDirection().z * 10000), NxOgre::Enums::ForceMode_Force, true);
            mTimeUntilNextToggle = 0.2;
        }

        return ExampleFrameListener::frameStarted(evt);
    }

protected:
    NxOgre::TimeController* mTimeController;
    OGRE3DRenderSystem*    mRenderSystem;
    OGRE3DKinematicBody*    mKB;
    OGRE3DBody*        mCube;
    NxOgre::Real        mYPos;
    bool            mDown;
};

class BloodyMessTutorial5 : public ExampleApplication
{
protected:
    NxOgre::World*        mWorld;
    NxOgre::Scene*        mScene;
    NxOgre::TimeController*    mTimeController;
    OGRE3DRenderSystem*    mRenderSystem;
    OGRE3DKinematicBody*    mKB;
    
    void createScene()
    {
        // Set ambient light
        mSceneMgr->setAmbientLight(ColourValue(0.5f, 0.5f, 0.5f));

        // Create a light
        Light* l = mSceneMgr->createLight("MainLight");
        l->setPosition(20, 80, 50);

        // Position the camera
        mCamera->setPosition(0, 20, 40);
        mCamera->lookAt(0, 10, 0);

        // Create the world
        mWorld = NxOgre::World::createWorld();

        // Create scene description
        NxOgre::SceneDescription sceneDesc;
        sceneDesc.mGravity = NxOgre::Vec3(0, -9.8f, 0);
        sceneDesc.mName = "DemoScene";

        // Create scene
        mScene = mWorld->createScene(sceneDesc);

        // Set some physical scene values
        mScene->getMaterial(0)->setStaticFriction(0.5);
        mScene->getMaterial(0)->setDynamicFriction(0.5);
        mScene->getMaterial(0)->setRestitution(0.1);

        // Create render system
        mRenderSystem = new OGRE3DRenderSystem(mScene);

        //Create time controller
        mTimeController = NxOgre::TimeController::getSingleton();

        // Add objects
        mKB = mRenderSystem->createKinematicBody(new NxOgre::Box(12, 1, 12), NxOgre::Vec3(0, 12, 0), "Cube.mesh");
        mRenderSystem->createBody(new NxOgre::Box(1, 1, 1), NxOgre::Vec3(0, 14, 0), "cube.1m.mesh");
    }

    // Create a new frame listener
    void createFrameListener()
    {
        mFrameListener = new BloodyMessTutorial5Listener(mWindow, mCamera, mRenderSystem, mKB);
        mRoot->addFrameListener(mFrameListener);
    }
};

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

#ifdef __cplusplus
extern "C" {
#endif

#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
    INT WINAPI WinMain(HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT)
#else
    int main(int argc, char **argv)
#endif
    {
        // Create application object
        BloodyMessTutorial5 app;

        try {
            app.go();
        } catch(Exception& e) {
#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
            MessageBoxA(NULL, e.getFullDescription().c_str(),
                "An exception has occurred!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
#else
            std::cerr << "An exception has occurred: " << e.getFullDescription();
#endif
        }

        return 0;
    }

#ifdef __cplusplus
}
#endif