source: Revenant/geoworld/include/geomorph.h

#ifndef __GEOMORPH_H__
#define __GEOMORPH_H__

#include <mars_util.h>
#include <mars_streams.h>
#include <typeinfo>

#include "gwtypes.h"

namespace geoworld
{
        class GeoMorph
        {
        public:
                // Called first to establish first state
                virtual void init (SynthesisSession & manager, const IGeoWorldAccessor & accessor, const unsigned short nMaxWidth, const unsigned short nMaxHeight) = 0;
                
                inline std::string getTypeName () const
                        { return typeid(*this).name(); }
        };

        class BoundedGeoMorph
        {
        public:
                // Called to index this bounded morpho
                virtual mars::BBox< long > getBBox () const = 0;
        };

        class HeightMapGeoMorph : public GeoMorph
        {
        public:
                // Called to perform CPU-intensive rasterization task
                virtual void doMorph (LockedGWSection & section) const = 0;
        };

        class PersistentGeoMorph
        {
        public:
                class State
                {
                public:
                        virtual mars::ObjectStream & operator >> (mars::ObjectStream & outs) const = 0;
                        virtual mars::ObjectStream & operator << (mars::ObjectStream & ins) = 0;
                };

                // Called by its factory to save/restore GeoMorph state
                virtual mars::ptr< State > createState () const = 0;
        };

        class MineralSpawnGeoMorph
        {
        public:
                virtual void doSpawnMinerals (const IMineralQuery * pQMin, MineralsContainer & container) = 0;
        };

        class MetaFieldSpawnGeoMorph
        {
        public:
                virtual void getRequestedFields (std::set< FieldType > & setOut) const = 0;
                //virtual void doPopulateMetaField (const FieldType enftFieldType)
        };
}

#endif