OpenPolygon Documentation

Example

Here's a short example application.

main.cpp

#include "openpolygon.h"

int main(int argc , char* argv[] )
{
      OpenPolygon engine;
      DisplayConfig config("./config.conf");
      GLFWDisplay * display = engine.initialize( &config );

      FrameListener * scene   = new Scene();
      RenderManager * manager = RenderManager::getSingletonPtr();
      manager->addFrameListener( scene );

      engine.RenderLoop( display );
      engine.finish();

      return 0;
 }

create a new Scene

scene.hpp

using namespace Engine;

class Scene : public Engine::FrameListener , public Engine::InputListener
{

    public:
        Scene();
        ~Scene(){}

        void initialize( OpenPolygonDisplay * display );

        void RenderLogic( float time );

        void onKeyEvent(const KeyEvent &event);

        void onMouseEvent(const MouseEvent &event);

    private:

};

scene.cpp

#include "scene.h"

Scene::Scene()
{
    InputManager::getSingletonPtr()->addInputListener( this );
}

//inheritance from FrameListener
void Scene::initialize( OpenPolygonDisplay * display )
{
    /* create a overlay - here */
    OverlayManager * manager        = OverlayManager::getSingletonPtr();
    Overlay        * overlay_hud    = manager->createOverlay("HUD");


    /* create a rendersystem - here */

    MultiRendering       * system          = new MultiRendering("RenderSystem");
    RenderEntityManager  * entity_manager  = new RenderEntityManager();
    RenderProcessManager * process_manager = new RenderProcessManager( entity_manager );

    system->setRenderProcessManager( process_manager );

    /* register a new rendersystem - assign with currently Display  */
    RenderManager::getSingletonPtr()->getSystemManager()->initRenderSystem( system , display );
    RenderManager::getSingletonPtr()->getSystemManager()->addRenderSystem ( system );

    /* add Objective - 3D Entitys */
    entity_manager->addEntity( new Cube() );

    /* add Objective - 2D Entity (Element) */
    overlay_hud->addElement( new TextElement() );
}

//inheritance from FrameListener
void Scene::RenderLogic( float time )
{
    /* write here the scene logic */
}


//inheritance from InputListener
void Scene::onKeyEvent( const KeyEvent & event)
{
    /* keyboard events */
}

//inheritance from InputListener
void Scene::onMouseEvent( const MouseEvent & event )
{
    /* mouse events */
}