float LifeEnvelope() const;
	/** Alive AND still on/near the map. */
	bool bActive = true;
};

class AGEOFEONS_API FAoEWeatherSystem
{
public:
	/** Bind to a loaded config + world + deterministic seed. */
	void Configure(const FAoEEcologyConfig* InConfig, FName InWorldId, int32 InSeed);

	/** OPT-IN: bind a richer weather.yml config so the ERA's 14-state Markov prior +
	 *  season bias drive the roll and its per-state effects apply. When it is NOT
	 *  bound (the default), the ecology.yml 5-state path runs byte-identically. Call
	 *  after Configure; EraToken is the lowercase era token (e.g. "cretaceous"). */
	void UseWeatherConfig(const FAoEWeatherConfig* InWeatherCfg, const FString& InEraToken);

	/** Set the biome palette (from the world model's BiomeSet). Resets to clear. */
	void SetBiomes(const TArray<FString>& InBiomes);

	/** Advance every biome by DeltaSimHours under Season; emit world.weather on a
	 *  state change. Returns the number of state changes. */
	int32 Advance(float DeltaSimHours, EAoESeason Season, IAoEEventSink* Sink);