patch parrot silo warning

control.lua

@@ -112,7 +112,7 @@ require 'utils.freeplay'
 --require 'maps.chronosphere.main'
 
 --![[Adventure as a crew of pirates]]--
---require 'maps.pirates.main'
+require 'maps.pirates.main'
 
 --![[Launch rockets in increasingly harder getting worlds.]]--
 --require 'maps.journey.main'

maps/pirates/api_on_tick.lua

@@ -1024,7 +1024,7 @@ function Public.silo_update(tickinterval)
 
 						if memory.overworldx >= 0 and dynamic_data.rocketsiloenergyconsumed >= 0.25 * dynamic_data.rocketsiloenergyneeded and (not dynamic_data.parrot_silo_warned) then
 							dynamic_data.parrot_silo_warned = true
-							local spawnerscount = Common.spawner_count(surface)
+							local spawnerscount = Common.spawner_count(game.surfaces[destination.surface_name])
 							if spawnerscount > 0 then
 								Common.parrot_speak(memory.force, {'pirates.parrot_silo_warning'})
 							end

maps/pirates/surfaces/cabin.lua

@@ -97,7 +97,7 @@ Public.Data.surfacename_rendering_pos = {x = -0.5, y = -15}
 
 Public.cabin_shop_data = {
 	{
-		price = {{'coin', 400}, {'coal', 20}},
+		price = {{'coin', 400}, {'coal', 20}, {'iron-plate', 10}},--should be inefficient on resources to merely buy arty to shoot nests
 		offer = {type='give-item', item = 'artillery-shell', count = 5},
 	},
 	{