Refactor item fluid storage

craftitems.lua

@@ -802,23 +802,3 @@ industrialtest.api.registerCompressorRecipe({
 	recipe="industrialtest:plantball",
 	time=5
 })
-
-minetest.register_tool("industrialtest:fuel_can",{
-	description=S("Fuel Can"),
-	inventory_image="industrialtest_fuel_can.png",
-	groups={
-		_industrialtest_fueled=1,
-		_industrialtest_fuel=1,
-		_industrialtest_fluidStorage=1
-	},
-	_industrialtest_fluidCapacity=10000
-})
-minetest.register_craft({
-	type="shaped",
-	output="industrialtest:fuel_can",
-	recipe={
-		{"","industrialtest:tin_plate","industrialtest:tin_plate"},
-		{"industrialtest:tin_plate","","industrialtest:tin_plate"},
-		{"industrialtest:tin_plate","industrialtest:tin_plate","industrialtest:tin_plate"}
-	}
-})

init.lua

@@ -78,6 +78,7 @@ dofile(modpath.."/tools/electric_chainsaw.lua")
 dofile(modpath.."/tools/electric_drill.lua")
 dofile(modpath.."/tools/electric_hoe.lua")
 dofile(modpath.."/tools/electric_saber.lua")
+dofile(modpath.."/tools/fluid_storage.lua")
 dofile(modpath.."/tools/jetpack.lua")
 dofile(modpath.."/tools/mining_laser.lua")
 dofile(modpath.."/tools/nano_suit.lua")

machines/canning_machine.lua

@@ -188,7 +188,7 @@ function industrialtest.CanningMachine.shouldDeactivate(self,pos)
 	return fuelSlot:is_empty() or targetSlot:is_empty() or meta:get_int("industrialtest.powerAmount")<self._opPower or
 		(industrialtest.api.itemHasFluidStorage(fuelSlot) and industrialtest.api.isItemFluidStorageEmpty(fuelSlot)) or
 		industrialtest.api.isItemFluidStorageFull(targetSlot) or
-		targetMeta:get_int("industrialtest.fluidCapacity")-targetMeta:get_int("industrialtest.fluidAmount")<fuelDef._industrialtest_fuelAmount or
+		targetMeta:get_int("industrialtest.fluidCapacity")-targetMeta:get_int("industrialtest.fluidAmount")<(fuelDef._industrialtest_fuelAmount or 0) or
 		(fuelDef._industrialtest_emptyVariant and not leftoverSlot:item_fits(ItemStack(fuelDef._industrialtest_emptyVariant)))
 end
 

tools/fluid_storage.lua

@@ -0,0 +1,45 @@
+-- IndustrialTest
+-- Copyright (C) 2025 mrkubax10
+
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- (at your option) any later version.
+
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+local S=minetest.get_translator("industrialtest")
+
+industrialtest.FuelCan=table.copy(industrialtest.FluidContainerItem)
+industrialtest.internal.unpackTableInto(industrialtest.FuelCan,{
+	name="industrialtest:fuel_can",
+	description=S("Fuel Can"),
+	inventoryImage="industrialtest_fuel_can.png",
+	capacity=10000
+})
+
+function industrialtest.FuelCan.createDefinitionTable(self)
+	local def=industrialtest.FluidContainerItem.createDefinitionTable(self)
+	def.groups._industrialtest_fueled=1
+	def.groups._industrialtest_fuel=1
+	return def
+end
+
+industrialtest.FuelCan:register()
+
+minetest.register_craft({
+	type="shaped",
+	output="industrialtest:fuel_can",
+	recipe={
+		{"","industrialtest:tin_plate","industrialtest:tin_plate"},
+		{"industrialtest:tin_plate","","industrialtest:tin_plate"},
+		{"industrialtest:tin_plate","industrialtest:tin_plate","industrialtest:tin_plate"}
+	}
+})
+