InstancedRenderState.h

// Copyright eeGeo Ltd (2012-2016), All Rights Reserved

#pragma once

#include "VectorMath.h"

#include <unordered_map>
#include <vector>

namespace Eegeo
{
    namespace Rendering
    {
        namespace Renderables
        {
            class InstancedRenderState
            {
            public:
                InstancedRenderState();

                void UpdateIndexColors(const std::vector<int>& indices, const v4& color);
                void UpdateIndexColor(int index, const v4& color);

                inline bool IsHighlighted() const { return !m_indexColors.empty(); }
                inline bool IsHighlightedAtIndex(int index) const { return m_indexColors.find(index) != m_indexColors.end(); }

                v4 GetHighlightColorAtIndex(int index) const;

                bool IsHighlightingActive = false;

            private:
                std::unordered_map<int, v4> m_indexColors;
            };
        }
    }
}