urho3d/Source/Samples/20_HugeObjectCount/HugeObjectCount.h

//
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#pragma once

#include "Sample.h"

namespace Urho3D
{

class Node;
class Scene;

}

/// Huge object count example.
///  This sample demonstrates:
///     - Creating a scene with 250 x 250 simple objects
///     - Competing with http://yosoygames.com.ar/wp/2013/07/ogre-2-0-is-up-to-3x-faster/ :)
///     - Allowing examination of performance hotspots in the rendering code
///     - Using the profiler to measure the time taken to animate the scene
///     - Optionally speeding up rendering by grouping objects with the StaticModelGroup component
class HugeObjectCount : public Sample
{
    OBJECT(HugeObjectCount);

public:
    /// Construct.
    HugeObjectCount(Context* context);

    /// Setup after engine initialization and before running the main loop.
    virtual void Start();

private:
    /// Construct the scene content.
    void CreateScene();
    /// Construct an instruction text to the UI.
    void CreateInstructions();
    /// Set up a viewport for displaying the scene.
    void SetupViewport();
    /// Subscribe to application-wide logic update events.
    void SubscribeToEvents();
    /// Read input and moves the camera.
    void MoveCamera(float timeStep);
    /// Animate the scene.
    void AnimateObjects(float timeStep);
    /// Handle the logic update event.
    void HandleUpdate(StringHash eventType, VariantMap& eventData);

    /// Scene.
    SharedPtr<Scene> scene_;
    /// Camera scene node.
    SharedPtr<Node> cameraNode_;
    /// Box scene nodes.
    Vector<SharedPtr<Node> > boxNodes_;
    /// Camera yaw angle.
    float yaw_;
    /// Camera pitch angle.
    float pitch_;
    /// Animation flag.
    bool animate_;
    /// Group optimization flag.
    bool useGroups_;
};