fsIScroller.h

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/********************************************************************
*
*       File:           fsIScroller.h
*
*       Purpose:        Interface for controlling the scrolling of a tile map
*
*********************************************************************/
 
#ifndef fsIScrollerhdr
#define fsIScrollerhdr
 
#include <fsCore/fsBaseTypes.h>
#include <fsCore/fsPoint.h>
 
 
namespace fsNTileMap
{
        class fsITileMap;
 
        class fsIScroller
        {
        public:
 
                void tileOffsetSet(const fsPoint& pOffest);
 
                fsBool clamp(fsS32& pVal, fsS32 pLow, fsS32 pRange) const;
 
                const fsPoint& subTileScrollOffsetGet() const;
                const fsPoint& tileOffsetGet() const;
 
                fsBool fullTileScrollHandleX(fsS32& pAttemptedX, fsS32 pViewWidth);
                fsBool fullTileScrollHandleY(fsS32& pAttemptedY, fsS32 pViewHeight);
 
                void tileMapSet(fsITileMap* const pMap);
 
                virtual ~fsIScroller() {}
 
        protected:
 
                fsIScroller();
 
        private:
 
                virtual fsBool tileWrap(fsS32& pSubTilePos, fsS32& pDelta, fsS32& pTileOffset, fsS32 pSubTileMax, fsS32 pTileMax) const = 0;
 
                fsPoint mTileOffest;
                fsPoint mSubTileScrollOffest;
 
                fsITileMap* mMap;
 
        };
}
 
#endif