BlockModelProvider.h

#pragma once
#include "BlockModel.h"

namespace ParaEngine
{               
    class CBlockWorld;
    class BlockTemplate;
    class IBlockModelProvider;
    class Block;

    class IBlockModelProvider
    {
    public:
        IBlockModelProvider(BlockTemplate* pBlockTemplate):m_pBlockTemplate(pBlockTemplate){};
        virtual ~IBlockModelProvider(){};

        virtual BlockModel& GetBlockModel(int nIndex = 0);
        
        virtual BlockModel& GetBlockModel(CBlockWorld* pBlockManager, uint16_t block_id, uint16_t bx, uint16_t by, uint16_t bz, uint16_t nBlockData = 0, Block** neighborBlocks = NULL);
        virtual BlockModel& GetBlockModelByData(uint32 nData);

        virtual int GetModelIndex(CBlockWorld* pBlockManager, uint16_t block_id, uint16_t bx, uint16_t by, uint16_t bz, uint16_t nBlockData = 0, Block** neighborBlocks=NULL){return 0;};
    protected:
        BlockTemplate* m_pBlockTemplate;
    };

    class CGrassModelProvider: public IBlockModelProvider
    {
    public:
        CGrassModelProvider(BlockTemplate* pBlockTemplate): IBlockModelProvider(pBlockTemplate){};
        virtual ~CGrassModelProvider(){};

        
        virtual int GetModelIndex(CBlockWorld* pBlockManager, uint16_t block_id, uint16_t bx, uint16_t by, uint16_t bz, uint16_t nBlockData = 0, Block** neighborBlocks=NULL);
    };

    class CLinearModelProvider: public IBlockModelProvider
    {
    public:
        CLinearModelProvider(BlockTemplate* pBlockTemplate,int nCount = 0) : m_nModelCount(nCount), IBlockModelProvider(pBlockTemplate){};
        virtual ~CLinearModelProvider(){};

        virtual BlockModel& GetBlockModelByData(uint32 nData);

        virtual int GetModelIndex(CBlockWorld* pBlockManager, uint16_t block_id, uint16_t bx, uint16_t by, uint16_t bz, uint16_t nBlockData = 0, Block** neighborBlocks=NULL);

        int GetModelCount() const;
    protected:
        int m_nModelCount;
    };

}