#ifndef COMMON_H
#define COMMON_H

#include "settings.h"

// Tile types
typedef enum { TILE_WALL, TILE_FLOOR, TILE_STAIRS } TileType;

// Room
typedef struct {
  int x, y, w, h;
} Room;

// Map
typedef struct {
  TileType tiles[MAP_HEIGHT][MAP_WIDTH];
  Room rooms[MAX_ROOMS];
  int room_count;
} Map;

// Dungeon
typedef struct {
  int current_floor;
  Room rooms[MAX_ROOMS];
  int room_count;
} Dungeon;

// Item types
typedef enum { ITEM_POTION, ITEM_WEAPON, ITEM_ARMOR } ItemType;

// Item
typedef struct {
  int x, y;
  ItemType type;
  int power;
  int floor;
  int picked_up;
} Item;

// Player
typedef struct {
  int x, y;
  int hp, max_hp;
  int attack;
  int defense;
  int floor;
  int step_count;
  int speed;     // actions per 100 ticks (100 = 1 action per turn)
  int cooldown;  // countdown to next action (0 = can act)
  Item equipped_weapon;
  int has_weapon;
  Item equipped_armor;
  int has_armor;
  Item inventory[MAX_INVENTORY];
  int inventory_count;
  // damage variance range (0.8 to 1.2 = 80 to 120)
  int dmg_variance_min;  // minimum damage multiplier (80 = 0.8x)
  int dmg_variance_max;  // maximum damage multiplier (120 = 1.2x)
} Player;

// Enemy types
typedef enum { ENEMY_GOBLIN, ENEMY_SKELETON, ENEMY_ORC } EnemyType;

// Enemy
typedef struct {
  int x, y;
  int hp;
  int max_hp;
  int attack;
  int alive;
  EnemyType type;
  int speed;     // actions per 100 ticks
  int cooldown;  // countdown to next action
} Enemy;

// Floating damage text
typedef struct {
  int x, y;
  int value;
  int lifetime;  // frames remaining
  int is_critical;
} FloatingText;

// GameState - encapsulates all game state for testability and save/load
typedef struct {
  Player player;
  Map map;
  Dungeon dungeon;
  Enemy enemies[MAX_ENEMIES];
  int enemy_count;
  Item items[MAX_ITEMS];
  int item_count;
  int game_over;
  int game_won;
  const char *last_message;
  int message_timer;
  int turn_count;
  int awaiting_descend;  // 0 = normal, 1 = waiting for Y/N
  int show_inventory;    // 0 = hidden, 1 = show overlay
  int inv_selected;      // currently selected inventory index
  // action log
  char action_log[5][128];
  int log_count;
  int log_head;
  // visual effects
  FloatingText floating_texts[8];
  int floating_count;
  int screen_shake;  // frames of screen shake remaining
  int shake_x;
  int shake_y;
} GameState;

#endif  // COMMON_H