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119 lines
3.1 KiB
C++
119 lines
3.1 KiB
C++
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/*
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* CMapService.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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class CMap;
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class CMapHeader;
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class CInputStream;
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class IMapLoader;
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/**
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* The map service provides loading of VCMI/H3 map files. It can
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* be extended to save maps later as well.
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*/
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class DLL_LINKAGE CMapService
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{
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public:
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/**
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* Loads the VCMI/H3 map file specified by the name.
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*
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* @param name the name of the map
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* @return a unique ptr to the loaded map class
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*/
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static std::unique_ptr<CMap> loadMap(const std::string & name);
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/**
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* Loads the VCMI/H3 map header specified by the name.
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*
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* @param name the name of the map
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* @return a unique ptr to the loaded map header class
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*/
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static std::unique_ptr<CMapHeader> loadMapHeader(const std::string & name);
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/**
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* Loads the VCMI/H3 map file from a buffer. This method is temporarily
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* in use to ease the transition to use the new map service.
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*
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* TODO Replace method params with a CampaignMapInfo struct which contains
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* a campaign loading object + name of map.
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*
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* @param buffer a pointer to a buffer containing the map data
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* @param size the size of the buffer
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* @return a unique ptr to the loaded map class
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*/
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static std::unique_ptr<CMap> loadMap(const ui8 * buffer, int size);
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/**
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* Loads the VCMI/H3 map header from a buffer. This method is temporarily
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* in use to ease the transition to use the new map service.
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*
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* TODO Replace method params with a CampaignMapInfo struct which contains
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* a campaign loading object + name of map.
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*
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* @param buffer a pointer to a buffer containing the map header data
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* @param size the size of the buffer
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* @return a unique ptr to the loaded map class
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*/
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static std::unique_ptr<CMapHeader> loadMapHeader(const ui8 * buffer, int size);
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private:
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/**
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* Gets a map input stream object specified by a map name.
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*
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* @param name the name of the map
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* @return a unique ptr to the input stream class
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*/
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static std::unique_ptr<CInputStream> getStreamFromFS(const std::string & name);
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/**
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* Gets a map input stream from a buffer.
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*
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* @param buffer a pointer to a buffer containing the map data
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* @param size the size of the buffer
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* @return a unique ptr to the input stream class
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*/
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static std::unique_ptr<CInputStream> getStreamFromMem(const ui8 * buffer, int size);
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/**
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* Gets a map loader from the given stream. It performs checks to test
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* in which map format the map is.
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*
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* @param stream the input map stream
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* @return the constructed map loader
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*/
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static std::unique_ptr<IMapLoader> getMapLoader(std::unique_ptr<CInputStream> & stream);
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};
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/**
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* Interface for loading a map.
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*/
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class DLL_LINKAGE IMapLoader
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{
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public:
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/**
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* Loads the VCMI/H3 map file.
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*
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* @return a unique ptr of the loaded map class
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*/
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virtual std::unique_ptr<CMap> loadMap() = 0;
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/**
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* Loads the VCMI/H3 map header.
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*
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* @return a unique ptr of the loaded map header class
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*/
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virtual std::unique_ptr<CMapHeader> loadMapHeader() = 0;
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};
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