feat: shared creature root, enemy definitions, defend duty, and player downing

simulation/SimulationManager.gd

@@ -33,6 +33,7 @@ signal combatant_died(combatant_id: StringName)
 signal raid_started(raider_ids: Array[StringName])
 signal war_resolved(outcome: StringName)
 signal war_aborted
+signal player_downed
 
 var village := SimVillage.new()
 var player_system := PlayerCitizenSystem.new()
@@ -98,6 +99,8 @@ func _ready() -> void:
 	conflict_system.raid_started.connect(func(raider_ids): raid_started.emit(raider_ids))
 	conflict_system.war_resolved.connect(func(outcome): war_resolved.emit(outcome))
 	conflict_system.war_aborted.connect(func(): war_aborted.emit())
+	conflict_system.player_damaged.connect(_on_player_damaged)
+	conflict_system.player_downed.connect(func(): player_downed.emit())
 	action_selector.relationship_system = relationship_system
 	var definition_errors := SimulationDefinitions.validate()
 	if not definition_errors.is_empty():
@@ -258,8 +261,16 @@ func _select_action_if_idle(npc: SimNPC, previous_state: StringName) -> void:
 		record_narrative_event(SimulationIds.EVENT_VILLAGER_WEAK, npc.id)
 	var helper := get_active_opportunity_helper()
 	var animal_feed_available := animal_care.has_available_feed_target(npc.id)
+	var war_raid_active := conflict_system.is_raiding()
 	var selection := action_selector.select_action(
-		npc, village, clock.time_of_day(), npcs, helper, _population_view, animal_feed_available
+		npc,
+		village,
+		clock.time_of_day(),
+		npcs,
+		helper,
+		_population_view,
+		animal_feed_available,
+		war_raid_active
 	)
 	if selection == null:
 		return
@@ -390,6 +401,8 @@ func _apply_action_completion(
 			pass
 		SimulationIds.ACTION_PATROL, SimulationIds.ACTION_STUDY, SimulationIds.ACTION_REST, SimulationIds.ACTION_WANDER:
 			village.apply_npc_task(npc)
+		SimulationIds.ACTION_DEFEND:
+			village.apply_metric_delta(&"safety", 0.5)
 	if debug_logs and completed_task == SimulationIds.ACTION_SLEEP:
 		print("[SimulationManager] ", npc.npc_name, " completed sleep at home")
 
@@ -1138,6 +1151,31 @@ func harvest_resource_node(node: ResourceNode) -> float:
 
 func advance_player_needs() -> void:
 	player_system.advance_needs(village.food_modifier)
+	player_system.player_state.advance_health()
+	_sync_player_combatant()
+
+
+func _sync_player_combatant() -> void:
+	conflict_system.set_player_health(
+		player_system.player_state.get_health(), player_system.player_state.is_downed()
+	)
+
+
+func _on_player_damaged(amount: float) -> void:
+	player_system.player_state.take_damage(amount)
+	_sync_player_combatant()
+
+
+func update_player_combatant(position: Vector3) -> void:
+	conflict_system.set_player_combatant_position(position)
+
+
+func player_is_downed() -> bool:
+	return player_system.player_state.is_downed()
+
+
+func get_player_health() -> float:
+	return player_system.player_state.get_health()
 
 
 func get_season() -> StringName: