feat: add location-based food storage loop

simulation/SimNPC.gd

@@ -28,6 +28,7 @@ var task_complete := true
 var target_id: StringName = &""
 var travel_target_position: Vector3
 var has_travel_target := false
+var inventory: Dictionary = {}
 var last_task: StringName
 var random_source: RandomNumberGenerator
 var debug_logs := true
@@ -69,12 +70,19 @@ func die_from_starvation() -> void:
 	if debug_logs:
 		print("[SimNPC] ", npc_name, " died from starvation.")
 		
-func should_eat_immediately_after_task() -> bool:
-	return (
-		current_task == SimulationIds.ACTION_GATHER_FOOD
-		and is_starving
-		and not is_dead
+func get_inventory_amount(item_id: StringName) -> float:
+	return float(inventory.get(String(item_id), 0.0))
+
+func add_inventory(item_id: StringName, amount: float) -> void:
+	inventory[String(item_id)] = get_inventory_amount(item_id) + maxf(amount, 0.0)
+
+func remove_inventory(item_id: StringName, requested_amount: float) -> float:
+	var removed := minf(
+		maxf(requested_amount, 0.0),
+		get_inventory_amount(item_id)
 	)
+	inventory[String(item_id)] = get_inventory_amount(item_id) - removed
+	return removed
 
 func set_task(action_id: StringName, duration: float = -1.0) -> void:
 	var definition := SimulationDefinitions.get_action(action_id)