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alexbevi
GitHub Repository: alexbevi/BizHawk
 Path: blob/master/libsnes/bsnes/snes/ppu/sprite/sprite.hpp
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struct Sprite {

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  struct SpriteItem {

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    uint16 x;

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    uint16 y;

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    uint8 character;

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    bool nameselect;

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    bool vflip;

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    bool hflip;

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    uint8 priority;

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    uint8 palette;

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    bool size;

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    unsigned width() const;

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    unsigned height() const;

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  } list[128];

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  struct TileItem {

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    uint16 x;

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    uint16 priority;

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    uint16 palette;

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    bool hflip;

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    uint8 d0, d1, d2, d3;

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  };

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  struct State {

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    unsigned x;

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    unsigned y;

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    unsigned item_count;

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    unsigned tile_count;

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    bool active;

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    uint8 item[2][32];

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    TileItem tile[2][34];

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  } t;

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  struct Regs {

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    bool main_enable;

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    bool sub_enable;

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    bool interlace;

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    uint3 base_size;

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    uint2 nameselect;

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    uint16 tiledata_addr;

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    uint8 first_sprite;

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    unsigned priority0;

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    unsigned priority1;

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    unsigned priority2;

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    unsigned priority3;

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    bool time_over;

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    bool range_over;

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  } regs;

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  struct Output {

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    struct Pixel {

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      unsigned priority;  //0 = none (transparent)

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      uint8 palette;

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    } main, sub;

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  } output;

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  //list.cpp

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  void update(unsigned addr, uint8 data);

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  void synchronize();

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  //sprite.cpp

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  void address_reset();

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  void set_first_sprite();

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  void frame();

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  void scanline();

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  void run();

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  void tilefetch();

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  void reset();

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  bool on_scanline(SpriteItem&);

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  void serialize(serializer&);

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  Sprite(PPU &self);

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  PPU &self;

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  friend class PPU;

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};

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