two buildings working!

created research building base

data/buildings/basic/harvester/harvester.gd

@@ -11,6 +11,7 @@ func initialize(building: BuildingBase) -> void:
 	nearest_res = Grid.get_nearest_resource(building.position, CARBON_RESOURCE)
 	_distance = building.position.distance_to(nearest_res)
 	_direction = nearest_res.direction_to(building.position)
+	BuildingManager.add_resource_building(CARBON_RESOURCE, building)
 	
 func ready(building: BuildingBase) -> void:
 	var particles = HARVESTER_PARTICLES.instantiate()