sprite_sheet_slots.h

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#ifndef YAZE_ZELDA3_SPRITE_SPRITE_SHEET_SLOTS_H
#define YAZE_ZELDA3_SPRITE_SPRITE_SHEET_SLOTS_H
 
#include <array>
#include <cstdint>
#include <set>
#include <vector>
 
#include "rom/rom.h"
 
namespace yaze::zelda3 {
 
constexpr bool IsUnderworldSpriteset(int spriteset) {
  return spriteset >= 0x40;
}
 
std::array<uint8_t, 8> SpriteSheetSlots(
    const std::array<uint8_t, 4>& spriteset_values, bool underworld);
 
constexpr int SpriteSlotForTile(int tile) {
  return (tile & 0x1FF) / 0x40;
}
 
struct SpriteTileIssue {
  enum class Kind {
    kBlank,            // the referenced 8x8 tile is all zero
    kReservedSheet,    // the slot's sheet is reserved by the project
    kUnreadableSheet,  // the slot names a sheet that cannot be read
  };
  Kind kind = Kind::kBlank;
  int tile = 0;
  int slot = 0;
  uint16_t sheet = 0;
};
 
std::vector<SpriteTileIssue> CheckSpriteTiles(
    const Rom& rom, const std::vector<int>& tiles,
    const std::array<uint8_t, 8>& slots,
    const std::set<uint16_t>& reserved_sheets = {});
 
}  // namespace yaze::zelda3
 
#endif  // YAZE_ZELDA3_SPRITE_SPRITE_SHEET_SLOTS_H