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@ -22,6 +22,27 @@ enum AbstractFileType {
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FT_HEIGHTMAP, ///< heightmap file
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FT_INVALID = 7, ///< Invalid or unknown file type.
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FT_NUMBITS = 3, ///< Number of bits required for storing a #AbstractFileType value.
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FT_MASK = (1 << FT_NUMBITS) - 1, ///< Bitmask for extracting an abstract file type.
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};
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/** Kinds of files in each #AbstractFileType. */
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enum DetailedFileType {
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/* Save game and scenario files. */
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DFT_OLD_GAME_FILE, ///< Old save game or scenario file.
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DFT_GAME_FILE, ///< Save game or scenario file.
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/* Heightmap files. */
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DFT_HEIGHTMAP_BMP, ///< BMP file.
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DFT_HEIGHTMAP_PNG, ///< PNG file.
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/* fios 'files' */
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DFT_FIOS_DRIVE, ///< A drive (letter) entry.
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DFT_FIOS_PARENT, ///< A parent directory entry.
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DFT_FIOS_DIR, ///< A directory entry.
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DFT_FIOS_DIRECT, ///< Direct filename.
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DFT_INVALID = 255, ///< Unknown or invalid file.
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};
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/** Operation performed on the file. */
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@ -30,21 +51,56 @@ enum FileOperation {
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FOP_SAVE, ///< File is being saved.
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};
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/** Elements of a file system that are recognized. */
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/**
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* Construct an enum value for #FiosType as a combination of an abstract and a detailed file type.
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* @param abstract Abstract file type (one of #AbstractFileType).
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* @param detailed Detailed file type (one of #DetailedFileType).
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*/
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#define MAKE_FIOS_TYPE(abstract, detailed) ((abstract) | ((detailed) << FT_NUMBITS))
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/**
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* Elements of a file system that are recognized.
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* Values are a combination of #AbstractFileType and #DetailedFileType.
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* @see GetAbstractFileType GetDetailedFileType
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*/
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enum FiosType {
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FIOS_TYPE_DRIVE,
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FIOS_TYPE_PARENT,
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FIOS_TYPE_DIR,
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FIOS_TYPE_FILE,
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FIOS_TYPE_OLDFILE,
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FIOS_TYPE_SCENARIO,
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FIOS_TYPE_OLD_SCENARIO,
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FIOS_TYPE_DIRECT,
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FIOS_TYPE_PNG,
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FIOS_TYPE_BMP,
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FIOS_TYPE_INVALID = 255,
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FIOS_TYPE_DRIVE = MAKE_FIOS_TYPE(FT_NONE, DFT_FIOS_DRIVE),
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FIOS_TYPE_PARENT = MAKE_FIOS_TYPE(FT_NONE, DFT_FIOS_PARENT),
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FIOS_TYPE_DIR = MAKE_FIOS_TYPE(FT_NONE, DFT_FIOS_DIR),
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FIOS_TYPE_DIRECT = MAKE_FIOS_TYPE(FT_NONE, DFT_FIOS_DIRECT),
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FIOS_TYPE_FILE = MAKE_FIOS_TYPE(FT_SAVEGAME, DFT_GAME_FILE),
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FIOS_TYPE_OLDFILE = MAKE_FIOS_TYPE(FT_SAVEGAME, DFT_OLD_GAME_FILE),
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FIOS_TYPE_SCENARIO = MAKE_FIOS_TYPE(FT_SCENARIO, DFT_GAME_FILE),
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FIOS_TYPE_OLD_SCENARIO = MAKE_FIOS_TYPE(FT_SCENARIO, DFT_OLD_GAME_FILE),
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FIOS_TYPE_PNG = MAKE_FIOS_TYPE(FT_HEIGHTMAP, DFT_HEIGHTMAP_PNG),
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FIOS_TYPE_BMP = MAKE_FIOS_TYPE(FT_HEIGHTMAP, DFT_HEIGHTMAP_BMP),
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FIOS_TYPE_INVALID = MAKE_FIOS_TYPE(FT_INVALID, DFT_INVALID),
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};
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#undef MAKE_FIOS_TYPE
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/**
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* Extract the abstract file type from a #FiosType.
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* @param fios_type Type to query.
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* @return The Abstract file type of the \a fios_type.
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*/
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inline AbstractFileType GetAbstractFileType(FiosType fios_type)
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{
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return static_cast<AbstractFileType>(fios_type & FT_MASK);
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}
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/**
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* Extract the detailed file type from a #FiosType.
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* @param fios_type Type to query.
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* @return The Detailed file type of the \a fios_type.
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*/
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inline DetailedFileType GetDetailedFileType(FiosType fios_type)
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{
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return static_cast<DetailedFileType>(fios_type >> FT_NUMBITS);
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}
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/**
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* The different kinds of subdirectories OpenTTD uses
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*/
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