mirror of https://github.com/nmlgc/ReC98.git
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
// Stage background tile section definitions
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// -----------------------------------------
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// TH02 starts with a very simple fixed-size format, describing 16 unique
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// sections of 8 tile rows each. The .DT1 format arranges these sections into
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// the complete [map] of a stage.
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// Not checked by the game.
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#define MAP_MAGIC "MIKO_MAP "
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static const unsigned int MAP_MAGIC_SIZE = (sizeof(MAP_MAGIC) - 1);
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static const unsigned int MAP_ROWS_PER_SECTION = 8;
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static const unsigned int MAP_BITS_PER_SECTION = 3;
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static const unsigned int MAP_SECTION_COUNT = 16;
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static const unsigned int MAP_LENGTH_MAX = 320;
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typedef uint8_t map_section_id_t;
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struct map_section_tiles_t {
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tile_image_id_t row[MAP_ROWS_PER_SECTION][TILES_X];
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};
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// On-disk .MAP format
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struct map_t {
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char magic[MAP_MAGIC_SIZE];
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map_section_tiles_t sections[MAP_SECTION_COUNT];
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};
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// All unique sections of tiles used in the [map].
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extern map_section_tiles_t map_section_tiles[MAP_SECTION_COUNT];
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// Defines the complete map of a stage by stringing together the various
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// [map_sections], from the bottom/start to the top/end.
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extern map_section_id_t map[MAP_LENGTH_MAX];
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// *Not* at the top of the playfield. Very important distinction.
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extern unsigned int map_full_row_at_top_of_screen;
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// In tile sections.
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extern int map_length;
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// Loads the [map_sections] from the given file.
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void pascal map_load(const char* fn);
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