////////////////////////////////////////////////////////////
//~ Helpers

V_ParticleDesc V_DescFromParticleKind(V_ParticleKind kind)
{
  if (kind < 0 || kind >= V_ParticleKind_COUNT)
  {
    kind = V_ParticleKind_None;
  }

  V_ParticleDesc result;
  {
    PERSIST Readonly V_ParticleFlag flags[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) flags,
        V_ParticlesXList(X)
      #undef X
    };
    PERSIST Readonly V_ParticleLayer layers[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) layer,
        V_ParticlesXList(X)
      #undef X
    };
    PERSIST Readonly f32 stain_rates[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) stain_rate,
        V_ParticlesXList(X)
      #undef X
    };
    PERSIST Readonly f32 pen_rates[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) pen_rate,
        V_ParticlesXList(X)
      #undef X
    };
    PERSIST Readonly f32 lifetimes[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) lifetime,
        V_ParticlesXList(X)
      #undef X
    };
    PERSIST Readonly f32 prune_speed_thresholds[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) prune_speed_threshold,
        V_ParticlesXList(X)
      #undef X
    };
    PERSIST Readonly Vec4 base_colors[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) base_color,
        V_ParticlesXList(X)
      #undef X
    };
    PERSIST Readonly Vec4 dry_factor[V_ParticleKind_COUNT] = {
      #define X(name, flags, layer, stain_rate, pen_rate, lifetime, prune_speed_threshold, base_color, dry_factor) dry_factor,
        V_ParticlesXList(X)
      #undef X
    };
    result.kind = kind;
    result.flags = flags[kind];
    result.layer = layers[kind];
    result.stain_rate = stain_rates[kind];
    result.pen_rate = pen_rates[kind];
    result.lifetime = lifetimes[kind];
    result.prune_speed_threshold = prune_speed_thresholds[kind];
    result.base_color = LinearFromSrgb(base_colors[kind]);
    result.dry_factor = LinearFromSrgb(dry_factor[kind]);
  }
  return result;
}