pokemon/map_objects.hpp

#pragma once

#include <cstdint>

#include "gen/maps.hpp"

struct position_t {
  uint8_t x;
  uint8_t y;
};

struct warp_event_t {
  position_t position;
  struct {
    map_t::map map;
    uint8_t warp_index;
  } destination;
};

struct bg_event_t {
  position_t position;
  uint8_t sign_id;
};

struct object_event_t {
  enum struct type {
    generic,
    item,
    trainer,
    pokemon,
  };

  enum struct movement {
    stay,
    walk,
  };

  enum struct range_or_direction {
    any_dir,
    up_down,
    left_right,
    down,
    up,
    left,
    right,
    none,
    boulder_movement_byte_2,
  };

  enum type type;
  position_t position;
  uint8_t sprite_id; // fixme
  enum movement movement;
  enum range_or_direction range_or_direction;
  uint8_t text_id; // fixme
  union {
    struct {
      uint8_t id;
    } item;
    struct {
      uint8_t type; // trainer class
      uint8_t number; // trainer number
    } trainer;
    struct {
      uint8_t id; // pokemon id
      uint8_t level;
    } pokemon;
  };
};

// this is written "oddly" to make the struct more compact; making a
// {length, events} struct for each event type would would require 28
// bytes contrast to 16 bytes as modeled here.
struct object_t {
  uint8_t border_block;
  uint8_t warp_length;
  uint8_t bg_length;
  uint8_t object_length;
  const warp_event_t * warp_events;
  const bg_event_t * bg_events;
  const object_event_t * object_events;
};

extern const object_t map_objects[];