MetaHeightmap.h

#pragma once
#include "MetaObject.h"
#include "ShapeAABB.h"

namespace ParaEngine
{
    
    class MetaHeightmap : public MetaObject
    {
    public:
        class TerrainRegion
        {
        public:
            TerrainRegion(const CShapeAABB& aabb) : m_aabb(aabb) {};

            float getHeightAt(float x, float z);
            Vector3 getCenter() const;

            const CShapeAABB& getBoundingBox() const {return m_aabb;};
        private:
            CShapeAABB m_aabb;
        };
        
        MetaHeightmap(MetaWorldFragment *wf, const TerrainRegion& t, float groundThreshold);

        virtual void updateDataGrid(DataGrid* dataGrid);
        float getFallofRange() const {return mFallofRange; }
        void setFallofRange(float fallof) {mFallofRange = fallof; }
        virtual CShapeAABB getAABB() const;

    protected:
        // the parent terrain tile to which this meta height map is bound. 
        TerrainRegion mTerrainTile;

        float mFallofRange, mGroundThreshold, mGradient;
    };
}