RenderEngine.hpp

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/*
SagaEngine library
Copyright (c) 2002-2006 Skalden Studio AS

This software is provided 'as-is', without any express or implied 
warranty. In no event will the authors be held liable for any 
damages arising from the use of this software.

Permission is granted to distribute the library under the terms of the 
Q Public License version 1.0. Be sure to read and understand the license
before using the library. It should be included here, or you may read it
at http://www.trolltech.com/products/qt/licenses/licensing/qpl

The original version of this library can be located at:
http://www.sagaengine.com/

Rune Myrland
rune@skalden.com
*/


#ifndef o3d_RenderEngine_hpp
#define o3d_RenderEngine_hpp

#include "O3dPre.hpp"
#include "o3d/event/o3d_event.hpp"
#include "o3d/input/o3d_input.hpp"
#include "sim/SimListener.hpp"
#include "o3d/schema/O3dSchema.hpp"
#include <Ogre.h>

namespace se_ogre {
    class _SeOgreExport RenderEngine : public se_core::SimListener {
    public:
        RenderEngine(se_ogre::ConsoleHandler* consoleHandler = 0);
        virtual ~RenderEngine();

        void renderEvent(long when) { renderFrame(); }
        void preSimTickEvent(long when) {}
        void postSimTickEvent(long when);


        static RenderEngine* singleton();
        bool setup(void);
        void cleanup(void);

        void skipNext() { skip_ = 3; }
        void resetSkip() { skip_ = 0; }
        void renderFrame();
        void screenshot(int screenShotId);
        void screenshot(const char* prefix);
        void loadLevelResources(const char** sections);
        void resetLevelResources();

    protected:
        void resetGameClock(void);

        bool configure(void);

        void createInputBridge(void);


        void setupResources(void);

        void createResourceListener(void) {}

        void loadResources(void);

    protected:
        O3dInputBridge* inputBridge_;
        static const int MAX_LEVEL_RESOURCE_SECTIONS = 8;
        int levelResourceCount_;
        const char* levelResources_[ MAX_LEVEL_RESOURCE_SECTIONS ];
        int skip_;

    private:
#ifdef _DEBUG
        const static int fastExit = 1;
#else
        const static int fastExit = 0;
#endif
    virtual void chooseSceneManager(void)
    {
        // Create the SceneManager, in this case a generic one
        O3dSchema::sceneManager = O3dSchema::root->createSceneManager(Ogre::ST_GENERIC, "ExampleSMInstance");
    }
    virtual void createCamera(void)
    {
        // Create the camera
        O3dSchema::playerCamera = O3dSchema::sceneManager->createCamera("PlayerCam");

        // Position it at 500 in Z direction
        O3dSchema::playerCamera->setPosition(Ogre::Vector3(0,0,500));
        // Look back along -Z
        O3dSchema::playerCamera->lookAt(Ogre::Vector3(0,0,-300));
        O3dSchema::playerCamera->setNearClipDistance(5);

    }
    virtual void createViewports(void)
    {
        // Create one viewport, entire window
        Ogre::Viewport* vp = O3dSchema::window->addViewport(O3dSchema::playerCamera);
        vp->setBackgroundColour(Ogre::ColourValue(0,0,0));

        // Alter the camera aspect ratio to match the viewport
        O3dSchema::playerCamera->setAspectRatio(
            Ogre::Real(vp->getActualWidth()) / Ogre::Real(vp->getActualHeight()));
    }

    };

}


#endif

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