custom_collision.h

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#ifndef YAZE_APP_ZELDA3_DUNGEON_CUSTOM_COLLISION_H
#define YAZE_APP_ZELDA3_DUNGEON_CUSTOM_COLLISION_H
 
#include <array>
#include <cstdint>
#include <string>
#include <vector>
 
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "rom/rom.h"
 
namespace yaze {
namespace zelda3 {
 
struct CustomCollisionMap {
  std::array<uint8_t, 64 * 64> tiles{};
  bool has_data = false;
};
 
// Load the ZScream custom collision map for a dungeon room.
absl::StatusOr<CustomCollisionMap> LoadCustomCollisionMap(Rom* rom,
                                                          int room_id);
 
struct CustomCollisionTileEntry {
  uint16_t offset = 0;  // Y*64 + X (0..4095)
  uint8_t value = 0;    // Collision type (0..255). 0 typically means "unset".
};
 
struct CustomCollisionRoomEntry {
  int room_id = -1;
  std::vector<CustomCollisionTileEntry> tiles;
};
 
// JSON import/export helpers for authoring workflows.
//
// Format (v1):
// {
//   "version": 1,
//   "rooms": [
//     { "room_id": "0x25", "tiles": [ [ 1234, 8 ], [ 42, "0x1B" ] ] }
//   ]
// }
//
// `room_id`, offsets, and values may be provided as ints or strings (hex
// allowed). Values of 0 are allowed and can be used to explicitly clear tiles.
absl::StatusOr<std::string> DumpCustomCollisionRoomsToJsonString(
    const std::vector<CustomCollisionRoomEntry>& rooms);
 
absl::StatusOr<std::vector<CustomCollisionRoomEntry>>
LoadCustomCollisionRoomsFromJsonString(const std::string& json_content);
 
}  // namespace zelda3
}  // namespace yaze
 
#endif  // YAZE_APP_ZELDA3_DUNGEON_CUSTOM_COLLISION_H