export const TILE_SIZE = 48;
export const WORLD_WIDTH = 64;
export const WORLD_HEIGHT = 64;
export const TICK_RATE = 10; // server ticks per second
export const MOVE_SPEED = 0.75; // tiles per tick (NPC movement speed)
export const BROADCAST_EVERY_N_TICKS = 3; // state broadcast frequency
export const SPRITE_FRAME_WIDTH = 48;
export const SPRITE_FRAME_HEIGHT = 48;
export const SPRITE_COLS = 6;
export const SPRITE_ROWS = 4;

// NPC needs
export const HUNGER_DECAY_PER_TICK = 0.05;
export const ENERGY_DECAY_PER_TICK = 0.03;
export const HUNGER_THRESHOLD = 30;
export const ENERGY_THRESHOLD = 20;
export const NEED_RECOVERY_RATE = 0.5;

// Directions (row index in spritesheet)
export const Direction = {
  DOWN: 0,
  LEFT: 1,
  UP: 2,
  RIGHT: 3,
} as const;
export type Direction = (typeof Direction)[keyof typeof Direction];

// Accessory slot names in z-order (bottom to top rendering)
export const ACCESSORY_SLOTS = [
  'bottom', 'feet', 'chest', 'arm', 'shoulder',
  'waist', 'back', 'facialHair', 'haircut', 'hat',
] as const;
export type AccessorySlot = (typeof ACCESSORY_SLOTS)[number];

// Portrait-only slots (facial features for close-up portraits)
export const PORTRAIT_SLOTS = ['brows', 'eyes', 'mouths'] as const;
export type PortraitSlot = (typeof PORTRAIT_SLOTS)[number];

// Mapping from sprite accessory slot names to portrait folder names
// (some folders are pluralized in the portrait assets)
export const SPRITE_TO_PORTRAIT_FOLDER: Record<string, string> = {
  arm: 'arms',
  back: 'back',
  bottom: 'bottom',
  chest: 'chest',
  facialHair: 'facialHair',
  // feet: no portrait equivalent
  haircut: 'haircuts',
  hat: 'hats',
  shoulder: 'shoulders',
  waist: 'waist',
};

// Social interactions
export const AWARENESS_RADIUS = 5;        // Manhattan distance in tiles
export const FACING_DURATION = 10;         // ticks (1s)
export const PAUSING_DURATION = 15;        // ticks (1.5s)
export const EMOTING_DURATION = 20;        // ticks (2s)
export const SOCIAL_GLOBAL_COOLDOWN = 50;  // ticks (5s)
export const SOCIAL_PAIR_COOLDOWN = 300;   // ticks (30s)

export const PROPOSAL_EMOTING_DURATION = 30; // 3 seconds - longer for dramatic effect

// Camera mode commands
export const MAX_NPC_COUNT = 50;