/**
 * ECS Components — plain objects with number arrays (bitECS 0.4 pattern)
 *
 * Components define the data schema for entities.
 * Systems read/write component data.
 * Bridge syncs component data to Phaser rendering.
 */

/** World position in pixels */
export const Position = {
  x: [] as number[],
  y: [] as number[],
};

/** Movement velocity in pixels per second */
export const Velocity = {
  vx: [] as number[],
  vy: [] as number[],
};

/** Visual representation — used by bridge to create/update Phaser objects */
export const SpriteRef = {
  color: [] as number[],   // hex color (e.g. 0x00ff88)
  radius: [] as number[],  // circle radius in pixels
};

/** Entity health — damage, healing, death */
export const Health = {
  current: [] as number[],
  max: [] as number[],
};

/** Link to chemistry system — stores atomic number of primary element */
export const ChemicalComposition = {
  primaryElement: [] as number[],  // atomic number (e.g. 11 for Na)
};

/** Tag component — marks entity as the player (no data, identity only) */
export const PlayerTag = {
  _tag: [] as number[],
};

/** Harvestable resource — mineral veins, geysers, etc. */
export const Resource = {
  quantity: [] as number[],       // remaining items to collect
  interactRange: [] as number[],  // max interaction distance in pixels
};

/** Thrown element/compound projectile */
export const Projectile = {
  lifetime: [] as number[],  // remaining lifetime in ms (removed at 0)
};