AtomicGameEngine-Examples/FeatureExamples/CPlusPlus/Source/MultipleViewports.h

//
// Copyright (c) 2008-2016 the Urho3D project.
// Copyright (c) 2014-2016, THUNDERBEAST GAMES LLC All rights reserved
//
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// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
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// furnished to do so, subject to the following conditions:
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#pragma once

#include "Sample.h"

namespace Atomic
{

class Node;
class Scene;

}

/// Multiple viewports example.
/// This sample demonstrates:
///     - Setting up two viewports with two separate cameras
///     - Adding post processing effects to a viewport's render path and toggling them
class MultipleViewports : public Sample
{
    ATOMIC_OBJECT(MultipleViewports, Sample)

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

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

protected:

private:
    /// Construct the scene content.
    void CreateScene();
    /// Construct an instruction text to the UI.
    void CreateInstructions();
    /// Set up viewports.
    void SetupViewports();
    /// Subscribe to application-wide logic update and post-render update events.
    void SubscribeToEvents();
    /// Read input and moves the camera.
    void MoveCamera(float timeStep);
    /// Handle the logic update event.
    void HandleUpdate(StringHash eventType, VariantMap& eventData);
    /// Handle the post-render update event.
    void HandlePostRenderUpdate(StringHash eventType, VariantMap& eventData);

    /// Rear-facing camera scene node.
    SharedPtr<Node> rearCameraNode_;
    /// Flag for drawing debug geometry.
    bool drawDebug_;
};