Decouple from default start and fixes

Start to remove all default references to default mod into a single file so they can be more easily updated.
Add recipes for blue/red paper.
Add Silver Wire to internal copy of basic materials

elepower_dynamics/compat/basic_materials.lua

@@ -1,3 +1,7 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 if minetest.get_modpath("basic_materials") == nil then
 
 	--------------
@@ -98,9 +102,9 @@ if minetest.get_modpath("basic_materials") == nil then
 		    burntime = 30,
 	})
 
-	-----------------
+	----------
-	-- COPPER WIRE --
+	-- WIRE --
-	-----------------
+	----------
 
 	minetest.register_craftitem(":basic_materials:copper_wire", {
 		description = "Copper Wire",
@@ -112,11 +116,42 @@ if minetest.get_modpath("basic_materials") == nil then
 		output = "basic_materials:copper_wire 2",
 		type = "shapeless",
 		recipe = {
-			"default:copper_ingot",
+			epi.copper_ingot,
 			"basic_materials:empty_spool",
 			"basic_materials:empty_spool",
 		},
 	})
+	
+		minetest.register_craftitem(":basic_materials:silver_wire", {
+		description = "Silver Wire",
+		inventory_image = "elepower_bm_silver_wire.png",
+		groups = {copper = 1, wire = 1, component = 1}
+	})
+
+	minetest.register_craft( {
+		output = "basic_materials:silver_wire 2",
+		type = "shapeless",
+		recipe = {
+			epi.silver_ingot,
+			"basic_materials:empty_spool",
+			"basic_materials:empty_spool",
+		},
+	})
+	
+	---------------------
+	-- Heating Element --
+	---------------------	
+	minetest.register_craftitem(":basic_materials:heating_element", {
+	description = "Heating element",
+	inventory_image = "elepower_bm_heating_element.png",
+	})
+
+	minetest.register_craft( {
+		output = "basic_materials:heating_element 2",
+		recipe = {
+			{ epi.copper_ingot, epi.mese_crystal_fragment, epi.copper_ingot }
+		},
+	})
 
 	-----------
 	-- MOTOR --
@@ -131,9 +166,9 @@ if minetest.get_modpath("basic_materials") == nil then
 	minetest.register_craft({
 		output = "basic_materials:motor 3",
 		recipe = {
-			{"default:steel_ingot", "elepower_dynamics:wound_copper_coil", "default:steel_ingot"},
+			{epi.steel_ingot, "elepower_dynamics:wound_copper_coil", epi.steel_ingot},
 			{"basic_materials:copper_wire", "elepower_dynamics:wound_copper_coil", "basic_materials:copper_wire"},
-			{"default:steel_ingot", "elepower_dynamics:capacitor", "default:steel_ingot"},
+			{epi.steel_ingot, "elepower_dynamics:capacitor", epi.steel_ingot},
 		}
 	})
 
@@ -177,7 +212,7 @@ if minetest.get_modpath("basic_materials") == nil then
 		output = "basic_materials:steel_wire 2",
 		type = "shapeless",
 		recipe = {
-			"default:steel_ingot",
+			epi.steel_ingot,
 			"basic_materials:empty_spool",
 			"basic_materials:empty_spool",
 		},
@@ -186,8 +221,8 @@ if minetest.get_modpath("basic_materials") == nil then
 	minetest.register_craft( {
 		output = "basic_materials:steel_strip 12",
 		recipe = {
-			{ "", "default:steel_ingot", "" },
+			{ "", epi.steel_ingot, "" },
-			{ "default:steel_ingot", "", "" },
+			{ epi.steel_ingot, "", "" },
 		},
 	})
 	

elepower_dynamics/conduits.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epg = ele.external.graphic
+local eps = ele.external.sounds
+
 -- Electric power
 ele.register_conduit("elepower_dynamics:conduit", {
 	description = "Power Conduit",
@@ -15,57 +20,62 @@ ele.register_conduit("elepower_dynamics:conduit_wall", {
 	groups = {cracky = 1}
 })
 
-ele.register_conduit("elepower_dynamics:conduit_dirt_with_grass", {
+
-	description = "Power Conduit Grass Outlet",
+if ele.external.conduit_dirt_with_grass == true then
-	tiles = {"default_grass.png^elepower_conduit_node_socket.png",
+	ele.register_conduit("elepower_dynamics:conduit_dirt_with_grass", {
-	         "default_dirt.png",
+		description = "Power Conduit Grass Outlet",
-			 "default_dirt.png^default_grass_side.png"
+		tiles = {epg.grass.."^elepower_conduit_node_socket.png",
-			},
+				 epg.dirt,
-	use_texture_alpha = "clip",
+				 epg.dirt.."^"..epg.grass_side
-	ele_conductor_density = 4/8,
+				},
-	groups = {crumbly = 3, soil = 1},
+		use_texture_alpha = "clip",
-	sounds = default.node_sound_dirt_defaults({
+		ele_conductor_density = 4/8,
-			footstep = {name = "default_grass_footstep", gain = 0.25}
+		groups = {crumbly = 3, soil = 1},
+		sounds = eps.node_sound_dirt_c
 	})
-})
+end
 
-ele.register_conduit("elepower_dynamics:conduit_dirt_with_dry_grass", {
+if ele.external.conduit_dirt_with_dry_grass == true then
-	description = "Power Conduit Dry Grass Outlet",
+	ele.register_conduit("elepower_dynamics:conduit_dirt_with_dry_grass", {
-	tiles = {"default_dry_grass.png^elepower_conduit_node_socket.png",
+		description = "Power Conduit Dry Grass Outlet",
-	         "default_dirt.png",
+		tiles = {epg.grass_dry.."^elepower_conduit_node_socket.png",
-			 "default_dirt.png^default_dry_grass_side.png"
+				 epg.dirt,
-			},
+				 epg.dirt.."^"..epg.grass_side_dry
-	use_texture_alpha = "clip",
+				},
-	ele_conductor_density = 4/8,
+		use_texture_alpha = "clip",
-	groups = {crumbly = 3, soil = 1},
+		ele_conductor_density = 4/8,
-	sounds = default.node_sound_dirt_defaults({
+		groups = {crumbly = 3, soil = 1},
-			footstep = {name = "default_grass_footstep", gain = 0.25}
+		sounds = eps.node_sound_dirt_c
 	})
-})
+end
 
-ele.register_conduit("elepower_dynamics:conduit_stone_block", {
+if ele.external.conduit_stone_block == true then
-	description = "Power Conduit Stone Block",
+	ele.register_conduit("elepower_dynamics:conduit_stone_block", {
-	tiles = {"default_stone_block.png^elepower_conduit_node_socket.png",
+		description = "Power Conduit Stone Block",
-	         "default_stone_block.png^elepower_conduit_node_socket.png",
+		tiles = {epg.stone_block.."^elepower_conduit_node_socket.png",
-			 "default_stone_block.png^elepower_conduit_node_socket.png"
+				 epg.stone_block.."^elepower_conduit_node_socket.png",
-			},
+				 epg.stone_block.."^elepower_conduit_node_socket.png"
-	use_texture_alpha = "clip",
+				},
-	ele_conductor_density = 4/8,
+		use_texture_alpha = "clip",
-	groups = {cracky = 2, stone = 1},
+		ele_conductor_density = 4/8,
-	sounds = default.node_sound_stone_defaults(),
+		groups = {cracky = 2, stone = 1},
-})
+		sounds = eps.node_sound_stone
+	})
+end
 
-ele.register_conduit("elepower_dynamics:conduit_stone_block_desert", {
+if ele.external.conduit_stone_block_desert == true then
-	description = "Power Conduit Desert Stone Block",
+	ele.register_conduit("elepower_dynamics:conduit_stone_block_desert", {
-	tiles = {"default_desert_stone_block.png^elepower_conduit_node_socket.png",
+		description = "Power Conduit Desert Stone Block",
-	         "default_desert_stone_block.png^elepower_conduit_node_socket.png",
+		tiles = {epg.desert_stone_block.."^elepower_conduit_node_socket.png",
-			 "default_desert_stone_block.png^elepower_conduit_node_socket.png"
+				 epg.desert_stone_block.."^elepower_conduit_node_socket.png",
-			},
+				 epg.desert_stone_block.."^elepower_conduit_node_socket.png"
-	use_texture_alpha = "clip",
+				},
-	ele_conductor_density = 4/8,
+		use_texture_alpha = "clip",
-	groups = {cracky = 2, stone = 1},
+		ele_conductor_density = 4/8,
-	sounds = default.node_sound_stone_defaults(),
+		groups = {cracky = 2, stone = 1},
-})
+		sounds = eps.node_sound_stone
+	})
+end
 
 -- Fluid
 fluid_lib.register_transfer_node("elepower_dynamics:opaque_duct", {

elepower_dynamics/crafting.lua

@@ -1,97 +1,102 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing 
+local ept = ele.external.tools
+
 ---------------
 -- Overrides --
 ---------------
 
 -- Remove iron_lump -> steel_ingot, because dynamics adds iron ingot
---minetest.clear_craft({type = "cooking", output = "default:steel_ingot"})
+--minetest.clear_craft({type = "cooking", output = epi.steel_ingot})
 
 -----------
 -- Tools --
 -----------
-
+if ept.enable_iron_lead_tools == true then
 -- Pickaxes
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:pick_iron',
+		output = 'elepower_dynamics:pick_iron',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:iron_ingot', 'elepower_dynamics:iron_ingot', 'elepower_dynamics:iron_ingot'},
+			{'elepower_dynamics:iron_ingot', 'elepower_dynamics:iron_ingot', 'elepower_dynamics:iron_ingot'},
-		{'', 'group:stick', ''},
+			{'',epi.group_stick, ''},
-		{'', 'group:stick', ''},
+			{'',epi.group_stick, ''},
-	}
+		}
-})
+	})
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:pick_lead',
+		output = 'elepower_dynamics:pick_lead',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:lead_ingot', 'elepower_dynamics:lead_ingot', 'elepower_dynamics:lead_ingot'},
+			{'elepower_dynamics:lead_ingot', 'elepower_dynamics:lead_ingot', 'elepower_dynamics:lead_ingot'},
-		{'', 'group:stick', ''},
+			{'',epi.group_stick, ''},
-		{'', 'group:stick', ''},
+			{'',epi.group_stick, ''},
-	}
+		}
-})
+	})
 
--- Shovels
+	-- Shovels
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:shovel_iron',
+		output = 'elepower_dynamics:shovel_iron',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:iron_ingot'},
+			{'elepower_dynamics:iron_ingot'},
-		{'group:stick'},
+			{epi.group_stick},
-		{'group:stick'},
+			{epi.group_stick},
-	}
+		}
-})
+	})
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:shovel_lead',
+		output = 'elepower_dynamics:shovel_lead',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:lead_ingot'},
+			{'elepower_dynamics:lead_ingot'},
-		{'group:stick'},
+			{epi.group_stick},
-		{'group:stick'},
+			{epi.group_stick},
-	}
+		}
-})
+	})
 
--- Axes
+	-- Axes
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:axe_iron',
+		output = 'elepower_dynamics:axe_iron',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:iron_ingot', 'elepower_dynamics:iron_ingot'},
+			{'elepower_dynamics:iron_ingot', 'elepower_dynamics:iron_ingot'},
-		{'elepower_dynamics:iron_ingot', 'group:stick'},
+			{'elepower_dynamics:iron_ingot',epi.group_stick},
-		{'', 'group:stick'},
+			{'',epi.group_stick},
-	}
+		}
-})
+	})
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:axe_lead',
+		output = 'elepower_dynamics:axe_lead',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:lead_ingot', 'elepower_dynamics:lead_ingot'},
+			{'elepower_dynamics:lead_ingot', 'elepower_dynamics:lead_ingot'},
-		{'elepower_dynamics:lead_ingot', 'group:stick'},
+			{'elepower_dynamics:lead_ingot',epi.group_stick},
-		{'', 'group:stick'},
+			{'',epi.group_stick},
-	}
+		}
-})
+	})
 
--- Swords
+	-- Swords
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:sword_iron',
+		output = 'elepower_dynamics:sword_iron',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:iron_ingot'},
+			{'elepower_dynamics:iron_ingot'},
-		{'elepower_dynamics:iron_ingot'},
+			{'elepower_dynamics:iron_ingot'},
-		{'group:stick'},
+			{epi.group_stick},
-	}
+		}
-})
+	})
 
-minetest.register_craft({
+	minetest.register_craft({
-	output = 'elepower_dynamics:sword_lead',
+		output = 'elepower_dynamics:sword_lead',
-	recipe = {
+		recipe = {
-		{'elepower_dynamics:lead_ingot'},
+			{'elepower_dynamics:lead_ingot'},
-		{'elepower_dynamics:lead_ingot'},
+			{'elepower_dynamics:lead_ingot'},
-		{'group:stick'},
+			{epi.group_stick},
-	}
+		}
-})
+	})
+end
 
 -- Bucket
-
 minetest.register_craft({
 	output = 'bucket:bucket_empty',
 	recipe = {
@@ -139,41 +144,49 @@ minetest.register_craft({
 	}
 })
 
-minetest.register_craft({
+if ele.external.conduit_dirt_with_grass == true then
-	output = "elepower_dynamics:conduit_dirt_with_grass 1",
+	minetest.register_craft({
-	recipe = {
+		output = "elepower_dynamics:conduit_dirt_with_grass 1",
-		{"","farming:seed_wheat",""},
+		recipe = {
-		{"","elepower_dynamics:conduit"   ,""},
+			{"",epi.seed_wheat              ,""},
-		{"","default:dirt"                ,""}
+			{"","elepower_dynamics:conduit" ,""},
-	}
+			{"",epi.dirt                    ,""}
-})
+		}
+	})
+end
 
-minetest.register_craft({
+if ele.external.conduit_dirt_with_dry_grass == true then
-	output = "elepower_dynamics:conduit_dirt_with_dry_grass 1",
+	minetest.register_craft({
-	recipe = {
+		output = "elepower_dynamics:conduit_dirt_with_dry_grass 1",
-		{"","farming:wheat",""},
+		recipe = {
-		{"","elepower_dynamics:conduit"   ,""},
+			{"",epi.wheat                  ,""},
-		{"","default:dirt"                ,""}
+			{"","elepower_dynamics:conduit",""},
-	}
+			{"",epi.dirt                   ,""}
-})
+		}
+	})
+end
 
-minetest.register_craft({
+if ele.external.conduit_stone_block == true then
-	output = "elepower_dynamics:conduit_stone_block 1",
+	minetest.register_craft({
-	recipe = {
+		output = "elepower_dynamics:conduit_stone_block 1",
-		{""                       ,"stairs:slab_stone_block"  ,""},
+		recipe = {
-		{"stairs:slab_stone_block","elepower_dynamics:conduit","stairs:slab_stone_block"},
+			{""                       ,epi.slab_stone_block  ,""},
-		{""                       ,"stairs:slab_stone_block"  ,""}
+			{epi.slab_stone_block,"elepower_dynamics:conduit",epi.slab_stone_block},
-	}
+			{""                       ,epi.slab_stone_block  ,""}
-})
+		}
+	})
+end
 
-minetest.register_craft({
+if ele.external.conduit_stone_block_desert == true then
-	output = "elepower_dynamics:conduit_stone_block_desert 1",
+	minetest.register_craft({
-	recipe = {
+		output = "elepower_dynamics:conduit_stone_block_desert 1",
-		{""                       ,"stairs:slab_desert_stone_block"  ,""},
+		recipe = {
-		{"stairs:slab_desert_stone_block","elepower_dynamics:conduit","stairs:slab_desert_stone_block"},
+			{""                       ,epi.slab_desert_stone_block  ,""},
-		{""                       ,"stairs:slab_desert_stone_block"  ,""}
+			{epi.slab_desert_stone_block,"elepower_dynamics:conduit",epi.slab_desert_stone_block},
-	}
+			{""                       ,epi.slab_desert_stone_block  ,""}
-})
+		}
+	})
+end
 
 
 
@@ -182,7 +195,7 @@ minetest.register_craft({
 	output = "elepower_dynamics:opaque_duct 3",
 	recipe = {
 		{"elepower_dynamics:lead_ingot",  "elepower_dynamics:lead_ingot",  "elepower_dynamics:lead_ingot"},
-		{"fluid_transfer:fluid_duct", "fluid_transfer:fluid_duct", "fluid_transfer:fluid_duct"},
+		{"fluid_transfer:fluid_duct"   , "fluid_transfer:fluid_duct"    , "fluid_transfer:fluid_duct"},
 		{"elepower_dynamics:lead_ingot",  "elepower_dynamics:lead_ingot",  "elepower_dynamics:lead_ingot"},
 	}
 })
@@ -191,9 +204,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_dynamics:portable_tank",
 	recipe = {
-		{"default:glass", "elepower_dynamics:fluid_duct", "default:glass"},
+		{epi.glass,"elepower_dynamics:fluid_duct",epi.glass},
-		{"default:glass", "default:glass", "default:glass"},
+		{epi.glass,epi.glass,epi.glass},
-		{"default:bronze_ingot",  "default:bronze_ingot", "default:bronze_ingot"},
+		{epi.bronze_ingot,epi.bronze_ingot,epi.bronze_ingot},
 	}
 })
 
@@ -204,18 +217,18 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_dynamics:wound_copper_coil",
 	recipe = {
-		{"", "default:copper_ingot", ""},
+		{""              ,epi.copper_ingot               , ""},
-		{"default:copper_ingot", "elepower_dynamics:iron_ingot", "default:copper_ingot"},
+		{epi.copper_ingot, "elepower_dynamics:iron_ingot", epi.copper_ingot},
-		{"", "default:copper_ingot", ""}
+		{""              , epi.copper_ingot              , ""}
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_dynamics:wound_copper_coil",
 	recipe = {
-		{"", "basic_materials:copper_wire", ""},
+		{""                           ,"basic_materials:copper_wire", ""},
-		{"basic_materials:copper_wire", "elepower_dynamics:iron_ingot", "basic_materials:copper_wire"},
+		{"basic_materials:copper_wire","elepower_dynamics:iron_ingot", "basic_materials:copper_wire"},
-		{"", "basic_materials:copper_wire", ""}
+		{""                           ,"basic_materials:copper_wire", ""}
 	},
 	replacements = {
 		{"basic_materials:copper_wire", "basic_materials:empty_spool"},
@@ -228,9 +241,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_dynamics:wound_silver_coil",
 	recipe = {
-		{"", "moreores:silver_ingot", ""},
+		{""              , epi.silver_ingot, ""},
-		{"moreores:silver_ingot", "elepower_dynamics:zinc_ingot", "moreores:silver_ingot"},
+		{epi.silver_ingot, "elepower_dynamics:zinc_ingot",epi.silver_ingot},
-		{"", "moreores:silver_ingot", ""}
+		{""              , epi.silver_ingot, ""}
 	}
 })
 
@@ -260,8 +273,8 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_dynamics:tree_tap",
 	recipe = {
-		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{epi.steel_ingot, epi.steel_ingot, epi.steel_ingot},
-		{"", "", "default:steel_ingot"},
+		{"", "", epi.steel_ingot},
 	}
 })
 
@@ -269,8 +282,8 @@ minetest.register_craft({
 	output = "elepower_dynamics:chip 6",
 	recipe = {
 		{"basic_materials:plastic_sheet", "basic_materials:plastic_sheet", "basic_materials:plastic_sheet"},
-		{"default:mese_crystal_fragment", "group:color_black", "default:mese_crystal_fragment"},
+		{epi.mese_crystal_fragment,epi.group_color_black, epi.mese_crystal_fragment},
-		{"default:copper_ingot", "moreores:silver_ingot", "default:copper_ingot"},
+		{epi.copper_ingot, epi.silver_ingot, epi.copper_ingot},
 	}
 })
 
@@ -278,17 +291,17 @@ minetest.register_craft({
 	output = "elepower_dynamics:capacitor 6",
 	recipe = {
 		{"basic_materials:plastic_sheet", "basic_materials:plastic_sheet", "basic_materials:plastic_sheet"},
-		{"moreores:silver_ingot", "default:mese_crystal", "moreores:silver_ingot"},
+		{epi.silver_ingot, epi.mese_crystal, epi.silver_ingot},
-		{"default:copper_ingot", "group:color_violet", "default:copper_ingot"},
+		{epi.copper_ingot, epi.group_color_violet, epi.copper_ingot},
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_dynamics:pcb_blank 3",
 	recipe = {
-		{"default:copper_ingot", "default:copper_ingot", "default:copper_ingot"},
+		{epi.copper_ingot,epi.copper_ingot, epi.copper_ingot},
-		{"default:copper_ingot", "default:mese_crystal", "default:copper_ingot"},
+		{epi.copper_ingot,epi.mese_crystal, epi.copper_ingot},
-		{"default:gold_ingot", "default:gold_ingot", "default:gold_ingot"},
+		{epi.gold_ingot  ,epi.gold_ingot, epi.gold_ingot},
 	}
 })
 
@@ -296,7 +309,7 @@ minetest.register_craft({
 	output = "elepower_dynamics:pcb_blank",
 	recipe = {
 		{"", "elepower_dynamics:copper_plate", ""},
-		{"default:mese_crystal_fragment", "default:mese_crystal_fragment", "default:mese_crystal_fragment"},
+		{epi.mese_crystal_fragment, epi.mese_crystal_fragment, epi.mese_crystal_fragment},
 		{"", "elepower_dynamics:gold_plate", ""},
 	}
 })
@@ -309,16 +322,16 @@ minetest.register_craft({
 		"elepower_dynamics:copper_dust",
 		"elepower_dynamics:copper_dust",
 		"elepower_dynamics:copper_dust",
-		"farming:seed_wheat",
+		epi.seed_wheat,
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_dynamics:uv_bulb",
 	recipe = {
-		{"group:color_blue", "group:color_violet", "group:color_blue"},
+		{epi.group_color_blue, epi.group_color_violet, epi.group_color_blue},
-		{"", "default:meselamp", ""},
+		{"", epi.mese_lamp, ""},
-		{"", "default:glass", ""},
+		{"", epi.glass, ""},
 	}
 })
 
@@ -327,9 +340,9 @@ minetest.clear_craft({output = "fluid_transfer:fluid_transfer_pump"})
 minetest.register_craft({
 	output = "fluid_transfer:fluid_transfer_pump 3",
 	recipe = {
-		{"group:stone",  "elepower_dynamics:control_circuit",  "group:stone"},
+		{epi.group_stone,  "elepower_dynamics:control_circuit",epi.group_stone},
 		{"elepower_dynamics:electrum_gear", "elepower_dynamics:servo_valve", "elepower_dynamics:electrum_gear"},
-		{"group:stone",  "elepower_dynamics:fluid_duct",  "group:stone"},
+		{epi.group_stone,  "elepower_dynamics:fluid_duct",  epi.group_stone},
 	}
 })
 
@@ -337,26 +350,26 @@ minetest.register_craft({
 	output = "elepower_dynamics:battery 2",
 	recipe = {
 		{"elepower_dynamics:zinc_dust", "elepower_dynamics:graphite_rod", "elepower_dynamics:lead_dust"},
-		{"elepower_dynamics:tin_plate", "default:mese_crystal_fragment", "elepower_dynamics:tin_plate"},
+		{"elepower_dynamics:tin_plate", epi.mese_crystal_fragment, "elepower_dynamics:tin_plate"},
-		{"elepower_dynamics:tin_plate", "default:mese_crystal_fragment", "elepower_dynamics:tin_plate"},
+		{"elepower_dynamics:tin_plate", epi.mese_crystal_fragment, "elepower_dynamics:tin_plate"},
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_dynamics:lcd_panel",
 	recipe = {
-		{"group:color_red", "group:color_green", "group:color_blue"},
+		{epi.group_color_red, epi.group_color_green, epi.group_color_blue},
-		{"moreores:silver_ingot", "elepower_dynamics:wound_copper_coil", "moreores:silver_ingot"},
+		{epi.silver_ingot, "elepower_dynamics:wound_copper_coil", epi.silver_ingot},
-		{"", "default:meselamp", ""}
+		{"", epi.mese_lamp, ""}
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_dynamics:pv_cell",
 	recipe = {
-		{"default:glass", "default:glass", "default:glass"},
+		{epi.glass, epi.glass, epi.glass},
-		{"group:color_blue", "elepower_dynamics:silicon_wafer_doped", "group:color_blue"},
+		{epi.group_color_blue, "elepower_dynamics:silicon_wafer_doped", epi.group_color_blue},
-		{"default:mese_crystal_fragment", "elepower_dynamics:wound_copper_coil", "default:mese_crystal_fragment"}
+		{epi.mese_crystal_fragment, "elepower_dynamics:wound_copper_coil", epi.mese_crystal_fragment}
 	}
 })
 
@@ -365,7 +378,7 @@ minetest.register_craft({
 	recipe = {
 		{"elepower_dynamics:chip", "elepower_dynamics:chip", "elepower_dynamics:chip"},
 		{"elepower_dynamics:capacitor", "elepower_dynamics:pcb", "elepower_dynamics:capacitor"},
-		{"default:copper_ingot", "default:mese_crystal", "default:copper_ingot"},
+		{epi.copper_ingot, epi.mese_crystal, epi.copper_ingot},
 	}
 })
 
@@ -382,7 +395,7 @@ minetest.register_craft({
 	recipe = {
 		{"elepower_dynamics:steel_plate", "", "elepower_dynamics:steel_plate"},
 		{"elepower_dynamics:steel_plate", "", "elepower_dynamics:steel_plate"},
-		{"", "elepower_dynamics:steel_plate", ""}
+		{""               ,"elepower_dynamics:steel_plate", ""}
 	}
 })
 
@@ -393,12 +406,12 @@ minetest.register_craft({
 minetest.register_craft({
 	type   = "cooking",
 	output = "elepower_dynamics:iron_ingot",
-	recipe = "default:iron_lump"
+	recipe = epi.iron_lump
 })
 
 minetest.register_craft({
 	type   = "cooking",
-	output = "default:steel_ingot",
+	output = epi.steel_ingot,
 	recipe = "elepower_dynamics:iron_ingot"
 })
 
@@ -438,7 +451,7 @@ for mat, data in pairs(elepd.registered_gears) do
 		local immebreak = false
 
 		if mat == "wood" then
-			found = "group:stick"
+			found = epi.group_stick
 			immebreak = true
 		end
 

elepower_dynamics/craftitems.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref 
+local epi = ele.external.ing
+
 ----------------
 -- Craftitems --
 ----------------
@@ -164,7 +169,7 @@ minetest.register_craftitem("elepower_dynamics:pcb_blank", {
 
 		-- Limited etchings
 		if uses == 10 then
-			minetest.set_node(pos, {name = "default:water_source"})
+			minetest.set_node(pos, {name = epr.water_source})
 		else
 			meta:set_int("uses", uses)
 		end
@@ -188,7 +193,7 @@ minetest.register_craftitem("elepower_dynamics:acidic_compound", {
 		local pos  = pointed_thing.under
 		local node = minetest.get_node(pos)
 		
-		if node.name ~= "default:water_source" then
+		if node.name ~= epi.water_source then
 			return itemstack
 		end
 
@@ -303,6 +308,6 @@ minetest.register_craftitem("elepower_dynamics:pv_cell", {
 -- Overrides --
 ---------------
 
-minetest.override_item("default:steel_ingot", {
+minetest.override_item(epi.steel_ingot, {
-	description = "Steel Ingot\nLow carbon steel"
+	description = "Low Carbon Steel Ingot"
 })

elepower_dynamics/fluids.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref 
+
 -- Etching Acid
 
 ele.helpers.register_liquid("etching_acid", {
@@ -40,7 +44,7 @@ bucket.register_liquid("elepower_dynamics:lithium_source", "elepower_dynamics:li
 minetest.register_node("elepower_dynamics:steam", {
 	description = "Steam",
 	groups      = {not_in_creative_inventory = 1, gas = 1},
-	liquid_form = "default:water_source",
+	liquid_form = epr.water_source,
 	tiles       = {"elepower_steam.png"},
 })
 

elepower_dynamics/nodes.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epg = ele.external.graphic 
+local eps = ele.external.sounds
+
 ---------------
 -- Overrides --
 ---------------
@@ -14,34 +19,34 @@ minetest.register_alias_force("elepower_dynamics:fluid_duct", "fluid_transfer:fl
 
 minetest.register_node("elepower_dynamics:stone_with_lead", {
 	description = "Lead Ore",
-	tiles = {"default_stone.png^elepower_mineral_lead.png"},
+	tiles = {epg.stone.."^elepower_mineral_lead.png"},
 	groups = {cracky = 2},
 	drop = 'elepower_dynamics:lead_lump',
-	sounds = default.node_sound_stone_defaults(),
+	sounds = eps.node_sound_stone,
 })
 
 minetest.register_node("elepower_dynamics:stone_with_nickel", {
 	description = "Nickel Ore",
-	tiles = {"default_stone.png^elepower_mineral_nickel.png"},
+	tiles = {epg.stone.."^elepower_mineral_nickel.png"},
 	groups = {cracky = 2},
 	drop = 'elepower_dynamics:nickel_lump',
-	sounds = default.node_sound_stone_defaults(),
+	sounds = eps.node_sound_stone,
 })
 
 minetest.register_node("elepower_dynamics:stone_with_viridisium", {
 	description = "Viridisium Ore",
-	tiles = {"default_stone.png^elepower_mineral_viridisium.png"},
+	tiles = {epg.stone.."^elepower_mineral_viridisium.png"},
 	groups = {cracky = 3},
 	drop = 'elepower_dynamics:viridisium_lump',
-	sounds = default.node_sound_stone_defaults(),
+	sounds = eps.node_sound_stone,
 })
 
 minetest.register_node("elepower_dynamics:stone_with_zinc", {
 	description = "Zinc Ore",
-	tiles = {"default_stone.png^elepower_mineral_zinc.png"},
+	tiles = {epg.stone.."^elepower_mineral_zinc.png"},
 	groups = {cracky = 3},
 	drop = 'elepower_dynamics:zinc_lump',
-	sounds = default.node_sound_stone_defaults(),
+	sounds = eps.node_sound_stone,
 })
 
 -- Other
@@ -51,18 +56,18 @@ minetest.register_node("elepower_dynamics:particle_board", {
 	tiles = {"elepower_particle_board.png"},
 	groups = {choppy = 2, wood = 1},
 	drop = 'elepower_dynamics:wood_dust 4',
-	sounds = default.node_sound_wood_defaults(),
+	sounds = eps.node_sound_wood,
 })
 
 minetest.register_node("elepower_dynamics:hardened_glass", {
 	description = "Hardened Obsidian Glass\nDoes not let light through",
 	drawtype = "glasslike_framed_optional",
-	tiles = {"default_obsidian_glass.png", "elepower_hard_glass_detail.png"},
+	tiles = {epg.obsidian_glass, "elepower_hard_glass_detail.png"},
 	paramtype2 = "glasslikeliquidlevel",
 	is_ground_content = false,
 	sunlight_propagates = false,
 	use_texture_alpha = "clip",
-	sounds = default.node_sound_glass_defaults(),
+	sounds = eps.node_sound_glass,
 	groups = {cracky = 3},
 })
 
@@ -73,7 +78,7 @@ minetest.register_node("elepower_dynamics:viridisium_block", {
 	tiles = {"elepower_viridisium_block.png"},
 	is_ground_content = false,
 	groups = {cracky = 1, level = 2},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = eps.node_sound_metal,
 })
 
 minetest.register_node("elepower_dynamics:lead_block", {
@@ -81,7 +86,7 @@ minetest.register_node("elepower_dynamics:lead_block", {
 	tiles = {"elepower_lead_block.png"},
 	is_ground_content = false,
 	groups = {cracky = 1, level = 2},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = eps.node_sound_metal,
 })
 
 minetest.register_node("elepower_dynamics:invar_block", {
@@ -89,7 +94,7 @@ minetest.register_node("elepower_dynamics:invar_block", {
 	tiles = {"elepower_invar_block.png"},
 	is_ground_content = false,
 	groups = {cracky = 1, level = 3},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = eps.node_sound_metal,
 })
 
 minetest.register_node("elepower_dynamics:nickel_block", {
@@ -97,7 +102,7 @@ minetest.register_node("elepower_dynamics:nickel_block", {
 	tiles = {"elepower_nickel_block.png"},
 	is_ground_content = false,
 	groups = {cracky = 1, level = 3},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = eps.node_sound_metal,
 })
 
 minetest.register_node("elepower_dynamics:zinc_block", {
@@ -105,5 +110,5 @@ minetest.register_node("elepower_dynamics:zinc_block", {
 	tiles = {"elepower_zinc_block.png"},
 	is_ground_content = false,
 	groups = {cracky = 1, level = 3},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = eps.node_sound_metal,
 })

elepower_dynamics/tools.lua

@@ -1,122 +1,129 @@
 
--- Pickaxes
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref 
+local eps = ele.external.sounds
 
-minetest.register_tool("elepower_dynamics:pick_iron", {
+if ele.external.tools.enable_iron_lead_tools == true then
-	description = "Iron Pickaxe",
+
-	inventory_image = "elepower_tool_ironpick.png",
+	-- Pickaxes
-	tool_capabilities = {
+	minetest.register_tool("elepower_dynamics:pick_iron", {
-		full_punch_interval = 1.0,
+		description = "Iron Pickaxe",
-		max_drop_level=1,
+		inventory_image = "elepower_tool_ironpick.png",
-		groupcaps={
+		tool_capabilities = {
-			cracky = {times={[1]=3.90, [2]=1.50, [3]=0.60}, uses=20, maxlevel=2},
+			full_punch_interval = 1.0,
+			max_drop_level=1,
+			groupcaps={
+				cracky = {times={[1]=3.90, [2]=1.50, [3]=0.60}, uses=20, maxlevel=2},
+			},
+			damage_groups = {fleshy=4},
 		},
-		damage_groups = {fleshy=4},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
-})
 
-minetest.register_tool("elepower_dynamics:pick_lead", {
+	minetest.register_tool("elepower_dynamics:pick_lead", {
-	description = "Lead Pickaxe",
+		description = "Lead Pickaxe",
-	inventory_image = "elepower_tool_leadpick.png",
+		inventory_image = "elepower_tool_leadpick.png",
-	tool_capabilities = {
+		tool_capabilities = {
-		full_punch_interval = 0.8,
+			full_punch_interval = 0.8,
-		max_drop_level=1,
+			max_drop_level=1,
-		groupcaps={
+			groupcaps={
-			cracky = {times={[1]=3.90, [2]=1.60, [3]=0.50}, uses=20, maxlevel=2},
+				cracky = {times={[1]=3.90, [2]=1.60, [3]=0.50}, uses=20, maxlevel=2},
+			},
+			damage_groups = {fleshy=5},
 		},
-		damage_groups = {fleshy=5},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
-})
 
--- Shovels
+	-- Shovels
 
-minetest.register_tool("elepower_dynamics:shovel_iron", {
+	minetest.register_tool("elepower_dynamics:shovel_iron", {
-	description = "Iron Shovel",
+		description = "Iron Shovel",
-	inventory_image = "elepower_tool_ironshovel.png",
+		inventory_image = "elepower_tool_ironshovel.png",
-	wield_image = "elepower_tool_ironshovel.png^[transformR90",
+		wield_image = "elepower_tool_ironshovel.png^[transformR90",
-	tool_capabilities = {
+		tool_capabilities = {
-		full_punch_interval = 1.1,
+			full_punch_interval = 1.1,
-		max_drop_level=1,
+			max_drop_level=1,
-		groupcaps={
+			groupcaps={
-			crumbly = {times={[1]=1.40, [2]=0.80, [3]=0.20}, uses=30, maxlevel=2},
+				crumbly = {times={[1]=1.40, [2]=0.80, [3]=0.20}, uses=30, maxlevel=2},
+			},
+			damage_groups = {fleshy=3},
 		},
-		damage_groups = {fleshy=3},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
-})
 
-minetest.register_tool("elepower_dynamics:shovel_lead", {
+	minetest.register_tool("elepower_dynamics:shovel_lead", {
-	description = "Lead Shovel",
+		description = "Lead Shovel",
-	inventory_image = "elepower_tool_leadshovel.png",
+		inventory_image = "elepower_tool_leadshovel.png",
-	wield_image = "elepower_tool_leadshovel.png^[transformR90",
+		wield_image = "elepower_tool_leadshovel.png^[transformR90",
-	tool_capabilities = {
+		tool_capabilities = {
-		full_punch_interval = 1.0,
+			full_punch_interval = 1.0,
-		max_drop_level=1,
+			max_drop_level=1,
-		groupcaps={
+			groupcaps={
-			crumbly = {times={[1]=1.50, [2]=0.50, [3]=0.10}, uses=30, maxlevel=2},
+				crumbly = {times={[1]=1.50, [2]=0.50, [3]=0.10}, uses=30, maxlevel=2},
+			},
+			damage_groups = {fleshy=4},
 		},
-		damage_groups = {fleshy=4},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
-})
 
--- Axes
+	-- Axes
 
-minetest.register_tool("elepower_dynamics:axe_iron", {
+	minetest.register_tool("elepower_dynamics:axe_iron", {
-	description = "Iron Axe",
+		description = "Iron Axe",
-	inventory_image = "elepower_tool_ironaxe.png",
+		inventory_image = "elepower_tool_ironaxe.png",
-	tool_capabilities = {
+		tool_capabilities = {
-		full_punch_interval = 1.0,
+			full_punch_interval = 1.0,
-		max_drop_level=1,
+			max_drop_level=1,
-		groupcaps={
+			groupcaps={
-			choppy={times={[1]=2.40, [2]=1.30, [3]=0.80}, uses=20, maxlevel=2},
+				choppy={times={[1]=2.40, [2]=1.30, [3]=0.80}, uses=20, maxlevel=2},
+			},
+			damage_groups = {fleshy=4},
 		},
-		damage_groups = {fleshy=4},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
-})
 
-minetest.register_tool("elepower_dynamics:axe_lead", {
+	minetest.register_tool("elepower_dynamics:axe_lead", {
-	description = "Lead Axe",
+		description = "Lead Axe",
-	inventory_image = "elepower_tool_leadaxe.png",
+		inventory_image = "elepower_tool_leadaxe.png",
-	tool_capabilities = {
+		tool_capabilities = {
-		full_punch_interval = 0.9,
+			full_punch_interval = 0.9,
-		max_drop_level=1,
+			max_drop_level=1,
-		groupcaps={
+			groupcaps={
-			choppy={times={[1]=2.40, [2]=1.20, [3]=0.70}, uses=20, maxlevel=2},
+				choppy={times={[1]=2.40, [2]=1.20, [3]=0.70}, uses=20, maxlevel=2},
+			},
+			damage_groups = {fleshy=5},
 		},
-		damage_groups = {fleshy=5},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
-})
 
--- Swords
+	-- Swords
 
-minetest.register_tool("elepower_dynamics:sword_iron", {
+	minetest.register_tool("elepower_dynamics:sword_iron", {
-	description = "Iron Sword",
+		description = "Iron Sword",
-	inventory_image = "elepower_tool_ironsword.png",
+		inventory_image = "elepower_tool_ironsword.png",
-	tool_capabilities = {
+		tool_capabilities = {
-		full_punch_interval = 0.8,
+			full_punch_interval = 0.8,
-		max_drop_level=1,
+			max_drop_level=1,
-		groupcaps={
+			groupcaps={
-			snappy={times={[1]=2.4, [2]=1.10, [3]=0.2}, uses=30, maxlevel=2},
+				snappy={times={[1]=2.4, [2]=1.10, [3]=0.2}, uses=30, maxlevel=2},
+			},
+			damage_groups = {fleshy=5},
 		},
-		damage_groups = {fleshy=5},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
-})
 
-minetest.register_tool("elepower_dynamics:sword_lead", {
+	minetest.register_tool("elepower_dynamics:sword_lead", {
-	description = "Lead Sword",
+		description = "Lead Sword",
-	inventory_image = "elepower_tool_leadsword.png",
+		inventory_image = "elepower_tool_leadsword.png",
-	tool_capabilities = {
+		tool_capabilities = {
-		full_punch_interval = 0.7,
+			full_punch_interval = 0.7,
-		max_drop_level=1,
+			max_drop_level=1,
-		groupcaps={
+			groupcaps={
-			snappy={times={[1]=2.2, [2]=1.00, [3]=0.1}, uses=30, maxlevel=2},
+				snappy={times={[1]=2.2, [2]=1.00, [3]=0.1}, uses=30, maxlevel=2},
+			},
+			damage_groups = {fleshy=7},
 		},
-		damage_groups = {fleshy=7},
+		sound = {breaks = eps.tool_breaks},
-	},
+	})
-	sound = {breaks = "default_tool_breaks"},
+
-})
+end

elepower_dynamics/worldgen.lua

@@ -1,14 +1,17 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref 
+local epr = ele.external.ref
+
 --------------
 -- Worldgen --
 --------------
-
 -- Lead
 
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_lead",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 15 * 15 * 15,
 	clust_num_ores = 12,
 	clust_size     = 3,
@@ -19,7 +22,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_lead",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 14 * 14 * 14,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -30,7 +33,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_lead",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 10 * 10 * 10,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -43,7 +46,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_nickel",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 25 * 25 * 25,
 	clust_num_ores = 4,
 	clust_size     = 3,
@@ -54,7 +57,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_nickel",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 25 * 25 * 25,
 	clust_num_ores = 4,
 	clust_size     = 3,
@@ -65,7 +68,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_nickel",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 15 * 15 * 15,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -76,7 +79,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_nickel",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 12 * 12 * 12,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -89,7 +92,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_viridisium",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 25 * 25 * 25,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -100,7 +103,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_viridisium",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 20 * 20 * 20,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -111,7 +114,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_viridisium",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 10 * 10 * 10,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -124,7 +127,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_zinc",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 25 * 25 * 25,
 	clust_num_ores = 2,
 	clust_size     = 3,
@@ -135,7 +138,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_zinc",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 20 * 20 * 20,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -146,7 +149,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_dynamics:stone_with_zinc",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 12 * 12 * 12,
 	clust_num_ores = 5,
 	clust_size     = 3,

elepower_farming/crafting.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 -----------
 -- Nodes --
 -----------
@@ -7,9 +11,9 @@
 minetest.register_craft({
 	output = "elepower_farming:device_frame",
 	recipe = {
-		{"basic_materials:plastic_sheet", "default:glass", "basic_materials:plastic_sheet"},
+		{"basic_materials:plastic_sheet", epi.glass, "basic_materials:plastic_sheet"},
-		{"default:glass", "default:mese_crystal", "default:glass"},
+		{epi.glass, epi.mese_crystal, epi.glass},
-		{"basic_materials:plastic_sheet", "default:glass", "basic_materials:plastic_sheet"},
+		{"basic_materials:plastic_sheet", epi.glass, "basic_materials:plastic_sheet"},
 	}
 })
 
@@ -18,7 +22,7 @@ minetest.register_craft({
 	output = "elepower_farming:planter",
 	recipe = {
 		{"elepower_dynamics:nickel_ingot", "elepower_dynamics:control_circuit", "elepower_dynamics:nickel_ingot"},
-		{"farming:hoe_steel", "elepower_farming:device_frame", "farming:hoe_steel"},
+		{epi.hoe_steel, "elepower_farming:device_frame", epi.hoe_steel},
 		{"elepower_dynamics:wound_copper_coil", "basic_materials:motor", "elepower_dynamics:wound_copper_coil"},
 	}
 })
@@ -28,7 +32,7 @@ minetest.register_craft({
 	output = "elepower_farming:harvester",
 	recipe = {
 		{"elepower_dynamics:nickel_ingot", "elepower_dynamics:control_circuit", "elepower_dynamics:nickel_ingot"},
-		{"default:axe_steel", "elepower_farming:device_frame", "farming:hoe_steel"},
+		{epi.axe_steel, "elepower_farming:device_frame", epi.hoe_steel},
 		{"basic_materials:motor", "elepower_dynamics:diamond_gear", "basic_materials:motor"},
 	}
 })

elepower_farming/machines/composter.lua

@@ -1,9 +1,13 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local function get_formspec(timer, biomass_buffer, output_buffer)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.fluid_bar(0, 0.75, biomass_buffer)..
 		ele.formspec.fluid_bar(7, 0.75, output_buffer)..
 		"list[context;src;1,0.5;3,3;]"..
@@ -14,7 +18,7 @@ local function get_formspec(timer, biomass_buffer, output_buffer)
 		"listring[current_player;main]"..
 		"listring[context;src]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function is_plant(itemname)

elepower_farming/machines/harvester.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 -- How many seconds there are between runs
 local HARVESTER_TICK  = 10
 
@@ -81,9 +85,9 @@ end
 
 local function get_formspec(timer, power, sludge, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.state_switcher(7, 2.5, state)..
 		ele.formspec.power_meter(power)..
 		ele.formspec.fluid_bar(7, 0, sludge)..
@@ -93,7 +97,7 @@ local function get_formspec(timer, power, sludge, state)
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer(pos, elapsed)

elepower_farming/machines/planter.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local eps = ele.external.sounds
+local epi = ele.external.ing
+
 -- How many seconds there are between runs
 local PLANTER_TICK = 10
 
@@ -180,26 +185,26 @@ local function plant(pos, range, stack, inv)
 							if (regN[base_node.name].soil     == nil or
 							   regN[base_node.name].soil.wet == nil or
 							   regN[base_node.name].soil.dry == nil) and
-							   regN["farming:soil"] == nil then
+							   regN[epi.farming_soil] == nil then
 								till = false
 							end
 
 							if till then
-								minetest.sound_play("default_dig_crumbly", {
+								minetest.sound_play(eps.dig_crumbly, {
 									pos = base_pos,
 									gain = 0.5,
 								})
 
 								local soil = regN[base_node.name].soil
-								local wet_soil = "farming:soil_wet"
+								local wet_soil = epi.farming_soil_wet
 
 								-- Determine soil name
 								-- Make sure we don't replace wet soil
 								if soil then
-									wet_soil = soil.wet or "farming:soil_wet"
+									wet_soil = soil.wet or epi_farming_soil_wet
 									soil = soil.dry
 								else
-									soil = "farming:soil"
+									soil = epi.farming_soil
 								end
 
 								if base_node.name ~= soil and base_node.name ~= wet_soil then

elepower_farming/machines/spawner.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 -- How many seconds there are between runs
 local SPAWNER_TICK = 10
 
@@ -91,9 +95,9 @@ end
 
 local function get_formspec(timer, power, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(7, 0, state)..
 		ele.formspec.create_bar(1, 0, 100 - timer, "#00ff11", true)..
@@ -104,7 +108,7 @@ local function get_formspec(timer, power, state)
 		"listring[current_player;main]"..
 		"listring[context;src]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer(pos, elapsed)

elepower_farming/machines/tree_extractor.lua

@@ -1,12 +1,16 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 local CAPACITY = 8000
 
 local fluid_table = {
-	["default:tree"]        = { fpc = 100, fluid = "elepower_farming:tree_sap_source" },
+	[epi.tree]        = { fpc = 100, fluid = "elepower_farming:tree_sap_source" },
-	["default:jungletree"]  = { fpc = 50,  fluid = "elepower_farming:resin_source" },
+	[epi.jungle_tree]  = { fpc = 50,  fluid = "elepower_farming:resin_source" },
-	["default:pine_tree"]   = { fpc = 100, fluid = "elepower_farming:resin_source" },
+	[epi.pine_tree]   = { fpc = 100, fluid = "elepower_farming:resin_source" },
-	["default:acacia_tree"] = { fpc = 50,  fluid = "elepower_farming:resin_source" },
+	[epi.acacia_tree] = { fpc = 50,  fluid = "elepower_farming:resin_source" },
-	["default:aspen_tree"]  = { fpc = 50,  fluid = "elepower_farming:resin_source" },
+	[epi.aspen_tree]  = { fpc = 50,  fluid = "elepower_farming:resin_source" },
 }
 
 minetest.register_node("elepower_farming:tree_extractor", {

elepower_farming/machines/tree_processor.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local tree_fluid_recipes = {
 	["elepower_farming:tree_sap_source"] = {
 		water  = 1000,
@@ -23,9 +27,9 @@ local tree_fluid_recipes = {
 
 local function get_formspec(timer, power, fluid_buffer, water_buffer, output_buffer, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.create_bar(1, 0, 100 - timer, "#00ff11", true)..
 		ele.formspec.fluid_bar(2, 0, fluid_buffer)..
@@ -37,7 +41,7 @@ local function get_formspec(timer, power, fluid_buffer, water_buffer, output_buf
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer(pos, elapsed)
@@ -170,7 +174,7 @@ ele.register_machine("elepower_farming:tree_processor", {
 		},
 		water = {
 			capacity  = 8000,
-			accepts   = {"default:water_source"},
+			accepts   = {epr.water_source},
 			drainable = false,
 		},
 		output = {

elepower_farming/treecutter.lua

@@ -2,6 +2,11 @@
 -- This code is taken from TreeCapitator by HybridDog (WTFPL)
 -- https://github.com/HybridDog/treecapitator
 
+
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 local load_time_start = minetest.get_us_time()
 
 ------------------------------------- Settings ---------------------------------
@@ -10,8 +15,8 @@ local load_time_start = minetest.get_us_time()
 elefarm.tc = {
 	stem_height_min = 3,
 	default_tree = {
-		trees = {"default:tree"},
+		trees = {epi.tree},
-		leaves = {"default:leaves"},
+		leaves = {epi.leaves},
 		range = 2,
 		fruits = {},
 		type = "default",
@@ -1024,32 +1029,32 @@ local mgname = minetest.get_mapgen_setting"mg_name"
 
 if mgname == "v6" then
 	elefarm.tc.register_tree{
-		trees = {"default:tree"},
+		trees = {epi.tree},
-		leaves = {"default:leaves"},
+		leaves = {epi.leaves},
 		range = 2,
-		fruits = {"default:apple"}
+		fruits = {epi.apple}
 	}
 
 	elefarm.tc.register_tree({
-		trees = {"default:jungletree"},
+		trees = {epi.jungle_tree},
-		leaves = {"default:jungleleaves"},
+		leaves = {epi.jungle_leaves},
 		range = 3
 	})
 else
 	elefarm.tc.register_tree{
-		trees = {"default:tree"},
+		trees = {epi.tree},
-		leaves = {"default:leaves"},
+		leaves = {epi.leaves},
 		range = 2,
 		range_up = 4,
 		range_down = 0,
-		fruits = {"default:apple", "default:tree"},
+		fruits = {epi.apple, epi.tree},
 		trunk_fruit_vertical = true
 	}
 
 	elefarm.tc.register_tree({
-		trees = {"default:jungletree"},
+		trees = {epi.jungle_tree},
-		leaves = {"default:jungleleaves"},
+		leaves = {epi.jungle_leaves},
-		fruits = {"default:jungletree"},
+		fruits = {epi.jungle_tree},
 		range = 4,
 		range_up = 14,
 		range_down = 5,
@@ -1058,9 +1063,9 @@ else
 	})
 
 	elefarm.tc.register_tree({
-		trees = {"default:jungletree"},
+		trees = {epi.jungle_tree},
-		leaves = {"default:jungleleaves"},
+		leaves = {epi.jungle_leaves},
-		fruits = {"default:jungletree"},
+		fruits = {epi.jungle_tree},
 		range = 4,
 		range_up = 14,
 		range_down = 3,
@@ -1071,8 +1076,8 @@ else
 end
 
 elefarm.tc.register_tree({
-	trees = {"default:pine_tree"},
+	trees = {epi.pine_tree},
-	leaves = {"default:pine_needles"},
+	leaves = {epi.pine_needles},
 	-- the +2 height is used to also support the coned pine trees
 	range_up = 2 +2,
 	range_down = 6,
@@ -1080,29 +1085,29 @@ elefarm.tc.register_tree({
 })
 
 elefarm.tc.register_tree({
-	trees = {"default:acacia_tree"},
+	trees = {epi.acacia_tree},
-	leaf = "default:acacia_leaves",
+	leaf = epi.acacia_leaves,
 	no_param2test = true,
 	--leavesrange = 4,
 	type = "acacia"
 })
 
 elefarm.tc.register_tree({
-	trees = {"default:aspen_tree"},
+	trees = {epi.aspen_tree},
-	leaves = {"default:aspen_leaves"},
+	leaves = {epi.aspen_leaves},
 	range = 4,
 })
 
 if minetest.get_modpath("farming_plus") then
 	elefarm.tc.register_tree({
-		trees = {"default:tree"},
+		trees = {epi.tree},
 		leaves = {"farming_plus:banana_leaves"},
 		range = 2,
 		fruits = {"farming_plus:banana"}
 	})
 
 	elefarm.tc.register_tree({
-		trees = {"default:tree"},
+		trees = {epi.tree},
 		leaves = {"farming_plus:cocoa_leaves"},
 		range = 2,
 		fruits = {"farming_plus:cocoa"}
@@ -1147,7 +1152,7 @@ if minetest.get_modpath("moretrees") then
 	elefarm.tc.register_tree{
 		trees = {"moretrees:apple_tree_trunk"},
 		leaves = {"moretrees:apple_tree_leaves"},
-		fruits = {"default:apple", "moretrees:apple_tree_trunk"},
+		fruits = {epi.apple, "moretrees:apple_tree_trunk"},
 		trunk_fruit_vertical = true,
 		range = 9,
 		range_up = 3,
@@ -1266,7 +1271,7 @@ if minetest.get_modpath("moretrees") then
 
 	elefarm.tc.register_tree{ -- small and 2x2 jungletree at once
 		trees = {"moretrees:jungletree_trunk"},
-		leaves = {"default:jungleleaves", "moretrees:jungletree_leaves_red"},
+		leaves = {epi.jungle_leaves, "moretrees:jungletree_leaves_red"},
 		fruits = {"moretrees:jungletree_trunk"},
 		requisite_leaves = {"moretrees:jungletree_leaves_red"},
 		trunk_fruit_vertical = true,
@@ -1280,7 +1285,7 @@ if minetest.get_modpath("moretrees") then
 
 	elefarm.tc.register_tree{
 		trees = {"moretrees:jungletree_trunk"},
-		leaves = {"default:jungleleaves", "moretrees:jungletree_leaves_yellow",
+		leaves = {epi.jungle_leaves, "moretrees:jungletree_leaves_yellow",
 			"moretrees:jungletree_leaves_red"},
 		fruits = {"moretrees:jungletree_trunk"},
 		requisite_leaves = {"moretrees:jungletree_leaves_yellow"},
@@ -1336,8 +1341,8 @@ end
 -- code from amadin and narrnika
 if minetest.get_modpath("ethereal") then
 	elefarm.tc.register_tree({
-		trees = {"default:jungletree"},
+		trees = {epi.jungle_tree},
-		leaves = {"default:jungleleaves"},
+		leaves = {epi.jungle_leaves},
 		range = 3,
 		height = 20,
 		max_nodes = 145,
@@ -1354,9 +1359,9 @@ if minetest.get_modpath("ethereal") then
 		type = "default",
 	})
 	elefarm.tc.register_tree({
-		trees = {"default:tree"},
+		trees = {epi.tree},
-		leaves = {"default:leaves", "ethereal:orange_leaves"},
+		leaves = {epi.leaves, "ethereal:orange_leaves"},
-		fruits = {"default:apple", "ethereal:orange"},
+		fruits = {epi.apple, "ethereal:orange"},
 		range = 2,
 		type = "default",
 	})

elepower_lighting/i_crafting.lua

@@ -11,18 +11,25 @@
 ------------------------------------------------------
 --                Crafting Recipes                  --
 ------------------------------------------------------
-local glass = "default:glass"
+-- see elepower_papi >> external_nodes_items.lua for explanation
-local glass_slab = "stairs:slab_glass"
+-- shorten table ref
-local stick = "default:stick"
+local epi = ele.external.ing
+
+local glass = epi.glass
+local glass_slab = epi.slab_glass
+local stick = epi.stick
 local steel_wire = "basic_materials:steel_wire"
 local steel_strip = "basic_materials:steel_strip"
 local plastic_strip = "basic_materials:plastic_strip"
 local plastic_sheet = "basic_materials:plastic_sheet"
+local empty_spool = "basic_materials:empty_spool"
 local mese_dust = "elepower_dynamics:mese_dust"
-local dye_red = "dye:red"
+local dye_red = epi.dye_red
-local dye_green = "dye:green"
+local dye_green = epi.dye_green
-local dye_blue = "dye:blue"
+local dye_blue = epi.dye_blue
-local s_wood = "stairs:slab_wood"
+local s_wood = epi.slab_wood
+local group_color_blue = epi.group_color_blue
+local group_color_violet = epi.group_color_violet
 
 minetest.register_craft( {
 	output = "elepower_lighting:electrum_strip 12",
@@ -40,7 +47,7 @@ minetest.register_craft({
 	output = "elepower_dynamics:uv_bulb",
 	recipe = {
 			{ ""               ,"elepower_lighting:bulb_glass"                ,  ""    },
-			{"group:color_blue","elepower_lighting:incandescent_bulb_element" ,"group:color_violet"},
+			{group_color_blue,"elepower_lighting:incandescent_bulb_element" ,group_color_violet},
 			{ ""               ,steel_strip                                   ,  ""    }
 			}
 })
@@ -177,6 +184,10 @@ minetest.register_craft({
 		{ ""  ,  "" ,  ""      },
 		{stick,  "" ,steel_wire},
 		{ ""  ,  "" ,  ""      }
+	},
+	replacements = {
+		{stick, stick},
+		{steel_wire, empty_spool}
 	}
 })
 

elepower_lighting/i_crafting_shades.lua

@@ -11,12 +11,30 @@
 ------------------------------------------------------
 --                 Crafting Shades                  --
 ------------------------------------------------------
-local stick = "default:stick" 
+-- see elepower_papi >> external_nodes_items.lua for explanation
-local paper = "default:paper"
+-- shorten table ref
+local epi = ele.external.ing
+
+local stick = epi.stick 
+local paper = epi.paper
+local dye_red = epi.dye_red
+local dye_blue = epi.dye_blue
 local paper_red = "elepower_lighting:paper_red"
 local paper_blue = "elepower_lighting:paper_blue"
 
-local colors = {["default:paper"] = "",["elepower_lighting:paper_red"] = "_red",["elepower_lighting:paper_blue"] = "_blue"}
+local colors = {[paper] = "",["elepower_lighting:paper_red"] = "_red",["elepower_lighting:paper_blue"] = "_blue"}
+
+minetest.register_craft({
+	output = "elepower_lighting:paper_red 3",
+	type = "shapeless",
+	recipe = {paper,paper,paper,dye_red},
+})
+
+minetest.register_craft({
+	output = "elepower_lighting:paper_blue 3",
+	type = "shapeless",
+	recipe = {paper,paper,paper,dye_blue},
+})
 
 for paper,color in pairs(colors) do
 minetest.register_craft({

elepower_machines/crafting.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 --*****************--
 -- MACHINE RECIPES --
 --*****************--
@@ -10,18 +14,18 @@
 local alloy_recipes = {
 	{
 		recipe = { "elepower_dynamics:iron_ingot", "elepower_dynamics:coal_dust 4" },
-		output = "default:steel_ingot",
+		output = epi.steel_ingot,
 	},
 	{
-		recipe = { "default:copper_ingot 2", "default:tin_ingot" },
+		recipe = { epi.copper_ingot.." 2", epi.tin_ingot },
-		output = "default:bronze_ingot 3",
+		output = epi.bronze_ingot.." 3",
 	},
 	{
 		recipe = { "elepower_dynamics:iron_ingot 3", "elepower_dynamics:nickel_ingot" },
 		output = "elepower_dynamics:invar_ingot 4",
 	},
 	{
-		recipe = { "default:gold_ingot 2", "elepower_dynamics:invar_ingot" },
+		recipe = { epi.gold_ingot.." 2", "elepower_dynamics:invar_ingot" },
 		output = "elepower_dynamics:electrum_ingot 3",
 	},
 	{
@@ -29,7 +33,7 @@ local alloy_recipes = {
 		output = "elepower_dynamics:silicon_wafer",
 	},
 	{
-		recipe = { "default:coal_lump", "elepower_dynamics:coal_dust 4" },
+		recipe = { epi.coal_lump, "elepower_dynamics:coal_dust 4" },
 		output = "elepower_dynamics:graphite_ingot",
 	},
 	{
@@ -38,17 +42,17 @@ local alloy_recipes = {
 		time   = 8,
 	},
 	{
-		recipe = { "default:obsidian_glass", "elepower_dynamics:lead_ingot 4" },
+		recipe = { epi.obsidian_glass, "elepower_dynamics:lead_ingot 4" },
 		output = "elepower_dynamics:hardened_glass 4",
 		time   = 8,
 	},
 	{
-		recipe = { "default:copper_ingot 2", "moreores:silver_ingot" },
+		recipe = { epi.copper_ingot.." 2", epi.silver_ingot },
 		output = "basic_materials:brass_ingot 3",
 		time   = 8,
 	},
 	{
-		recipe = { "default:bronze_ingot", "default:steel_ingot 4" },
+		recipe = { epi.bronze_ingot, epi.steel_ingot.." 4" },
 		output = "elepower_machines:heat_casing 4",
 	},
 }
@@ -106,36 +110,36 @@ end
 
 local grinding_recipes = {
 	{
-		recipe = { "farming:wheat" },
+		recipe = { epi.wheat },
-		output = "farming:flour 2",
+		output = epi.flour.." 2",
 		time   = 4,
 	},
 	{
-		recipe = { "default:desert_sand 4" },
+		recipe = { epi.desert_sand.." 4" },
 		output = "basic_materials:silicon",
 	},
 	{
-		recipe = { "default:sand 4" },
+		recipe = { epi.sand.." 4" },
 		output = "basic_materials:silicon",
 	},
 	{
-		recipe = { "default:cobble" },
+		recipe = { epi.cobble },
-		output = "default:gravel 4",
+		output = epi.gravel.." 4",
 	},
 	{
-		recipe = { "default:gravel" },
+		recipe = { epi.gravel },
-		output = "default:sand 4",
+		output = epi.sand.." 4",
 	},
 	{
-		recipe = { "default:mese" },
+		recipe = { epi.mese },
-		output = "default:mese_crystal 9",
+		output = epi.mese_crystal.." 9",
 	},
 	{
-		recipe = { "default:mese_crystal" },
+		recipe = { epi.mese_crystal },
-		output = "default:mese_crystal_fragment 9",
+		output = epi.mese_crystal_fragment.." 9",
 	},
 	{
-		recipe = { "default:mese_crystal_fragment" },
+		recipe = { epi.mese_crystal_fragment },
 		output = "elepower_dynamics:mese_dust",
 	},
 	{
@@ -223,13 +227,13 @@ local compressor_recipes = {
 		time   = 20,
 	},
 	{
-		recipe = { "default:mese_crystal_fragment 4", "default:mese_crystal_fragment 4" },
+		recipe = { epi.mese_crystal_fragment.." 4", epi.mese_crystal_fragment.." 4" },
-		output = "default:mese_crystal",
+		output = epi.mese_crystal,
 		time   = 2,
 	},
 	{
-		recipe = { "default:mese_crystal 4","default:mese_crystal 4" },
+		recipe = { epi.mese_crystal.." 4",epi.mese_crystal.." 4" },
-		output = "default:mese",
+		output = epi.mese,
 		time   = 2,
 	},
 	{
@@ -304,7 +308,7 @@ local soldering_recipes = {
 		time   = 8,
 	},
 	{
-		recipe = { "default:copper_ingot 4", "elepower_dynamics:microcontroller 4", "elepower_dynamics:electrum_ingot 2" },
+		recipe = { epi.copper_ingot.." 4", "elepower_dynamics:microcontroller 4", "elepower_dynamics:electrum_ingot 2" },
 		output = "elepower_dynamics:soc",
 		time   = 28,
 	},
@@ -388,8 +392,8 @@ minetest.register_craft({
 	output = "elepower_machines:hardened_capacitor",
 	recipe = {
 		{"basic_materials:plastic_sheet", "basic_materials:plastic_sheet", "basic_materials:plastic_sheet"},
-		{"elepower_dynamics:invar_plate", "default:mese_crystal", "elepower_dynamics:invar_plate"},
+		{"elepower_dynamics:invar_plate", epi.mese_crystal               , "elepower_dynamics:invar_plate"},
-		{"elepower_dynamics:invar_plate", "elepower_dynamics:capacitor", "elepower_dynamics:invar_plate"},
+		{"elepower_dynamics:invar_plate", "elepower_dynamics:capacitor"  , "elepower_dynamics:invar_plate"},
 	}
 })
 
@@ -397,7 +401,7 @@ minetest.register_craft({
 	output = "elepower_machines:reinforced_capacitor",
 	recipe = {
 		{"elepower_dynamics:invar_plate", "elepower_dynamics:invar_plate", "elepower_dynamics:invar_plate"},
-		{"elepower_dynamics:electrum_plate", "default:mese_crystal", "elepower_dynamics:electrum_plate"},
+		{"elepower_dynamics:electrum_plate", epi.mese_crystal            , "elepower_dynamics:electrum_plate"},
 		{"elepower_dynamics:electrum_plate", "elepower_machines:hardened_capacitor", "elepower_dynamics:electrum_plate"},
 	}
 })
@@ -406,7 +410,7 @@ minetest.register_craft({
 	output = "elepower_machines:resonant_capacitor",
 	recipe = {
 		{"elepower_dynamics:electrum_plate", "elepower_dynamics:electrum_plate", "elepower_dynamics:electrum_plate"},
-		{"elepower_dynamics:viridisium_plate", "default:mese_crystal", "elepower_dynamics:viridisium_plate"},
+		{"elepower_dynamics:viridisium_plate", epi.mese_crystal                , "elepower_dynamics:viridisium_plate"},
 		{"elepower_dynamics:viridisium_plate", "elepower_machines:reinforced_capacitor", "elepower_dynamics:viridisium_plate"},
 	}
 })
@@ -441,9 +445,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:wind_turbine_blade",
 	recipe = {
-		{"", "default:wood", "default:wood"},
+		{""             , epi.group_wood , epi.group_wood},
-		{"default:stick", "default:wood", "default:wood"},
+		{epi.group_stick, epi.group_wood , epi.group_wood},
-		{"default:stick", "default:stick", ""},
+		{epi.group_stick, epi.group_stick, ""},
 	}
 })
 
@@ -451,7 +455,7 @@ minetest.register_craft({
 	output = "elepower_machines:wind_turbine_blades",
 	recipe = {
 		{"elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade"},
-		{"elepower_machines:wind_turbine_blade", "default:wood", "elepower_machines:wind_turbine_blade"},
+		{"elepower_machines:wind_turbine_blade",             epi.group_wood            , "elepower_machines:wind_turbine_blade"},
 		{"elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade", "elepower_machines:wind_turbine_blade"},
 	}
 })
@@ -462,9 +466,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:coal_alloy_furnace",
 	recipe = {
-		{"default:brick", "default:brick", "default:brick"},
+		{epi.brick, epi.brick    , epi.brick},
-		{"default:furnace", "", "default:furnace"},
+		{epi.brick, epi.coal_lump, epi.brick},
-		{"default:brick", "default:brick", "default:brick"},
+		{epi.brick, epi.brick    , epi.brick},
 	}
 })
 
@@ -472,18 +476,18 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:grindstone",
 	recipe = {
-		{"group:stone", "group:stone", "group:stone"},
+		{epi.group_stone, epi.group_stone, epi.group_stone},
-		{"default:flint", "default:flint", "default:flint"},
+		{epi.flint      , epi.flint      , epi.flint      },
-		{"default:cobble", "default:cobble", "default:cobble"},
+		{epi.cobble     , epi.cobble     , epi.cobble     }
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_machines:crank",
 	recipe = {
-		{"group:stick", "group:stick", "group:stick"},
+		{epi.group_stick, epi.group_stick, epi.group_stick},
-		{"", "", "group:stick"},
+		{""             , ""             , epi.group_stick},
-		{"", "", "group:stick"},
+		{""             , ""             , epi.group_stick}
 	}
 })
 
@@ -491,9 +495,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:machine_block",
 	recipe = {
-		{"default:steel_ingot", "default:glass", "default:steel_ingot"},
+		{epi.steel_ingot, epi.glass                     , epi.steel_ingot},
-		{"default:glass", "elepower_dynamics:brass_gear", "default:glass"},
+		{epi.glass      , "elepower_dynamics:brass_gear", epi.glass      },
-		{"default:steel_ingot", "basic_materials:motor", "default:steel_ingot"},
+		{epi.steel_ingot, "basic_materials:motor"       , epi.steel_ingot}
 	}
 })
 
@@ -501,9 +505,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:generator",
 	recipe = {
-		{"", "default:steel_ingot", ""},
+		{""                                   , epi.steel_ingot                  ,              ""                      },
-		{"default:steel_ingot", "elepower_machines:machine_block", "default:steel_ingot"},
+		{epi.steel_ingot                      , "elepower_machines:machine_block", epi.steel_ingot                      },
-		{"elepower_dynamics:wound_copper_coil", "default:furnace", "elepower_dynamics:wound_copper_coil"}
+		{"elepower_dynamics:wound_copper_coil", epi.coal_lump                    , "elepower_dynamics:wound_copper_coil"}
 	}
 })
 
@@ -512,8 +516,8 @@ minetest.register_craft({
 	output = "elepower_machines:fuel_burner",
 	recipe = {
 		{"elepower_dynamics:wound_copper_coil", "elepower_dynamics:integrated_circuit", "elepower_dynamics:wound_copper_coil"},
-		{"default:brick", "elepower_dynamics:portable_tank", "default:brick"},
+		{epi.brick                            , "elepower_dynamics:portable_tank"     , epi.brick},
-		{"elepower_dynamics:servo_valve", "elepower_machines:generator", "elepower_dynamics:servo_valve"},
+		{"elepower_dynamics:servo_valve"      , "elepower_machines:generator"         , "elepower_dynamics:servo_valve"},
 	}
 })
 
@@ -521,13 +525,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:alloy_furnace",
 	recipe = {
-		{"", "elepower_dynamics:integrated_circuit", ""},
+		{ ""                                  , "elepower_dynamics:integrated_circuit", ""                             },
-		{"default:brick", "elepower_machines:machine_block", "default:brick"},
+		{"elepower_dynamics:wound_copper_coil","basic_materials:heating_element", "elepower_dynamics:wound_copper_coil"},
-		{
+		{epi.brick                            , "elepower_machines:machine_block"     , epi.brick                      },
-			"elepower_dynamics:wound_copper_coil",
-			"elepower_machines:coal_alloy_furnace",
-			"elepower_dynamics:wound_copper_coil"
-		},
 	}
 })
 
@@ -535,13 +535,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:solderer",
 	recipe = {
-		{"", "elepower_dynamics:integrated_circuit", ""},
+		{""                            , "elepower_dynamics:integrated_circuit",   ""                       },
-		{"elepower_dynamics:chip", "elepower_machines:machine_block", "elepower_dynamics:chip"},
+		{"elepower_dynamics:chip"      , "elepower_machines:machine_block"   , "elepower_dynamics:chip"     },
-		{
+		{"elepower_dynamics:invar_gear","elepower_dynamics:wound_copper_coil","elepower_dynamics:invar_gear"}
-			"elepower_dynamics:invar_gear",
-			"elepower_dynamics:wound_copper_coil",
-			"elepower_dynamics:invar_gear"
-		},
 	}
 })
 
@@ -550,8 +546,8 @@ minetest.register_craft({
 	output = "elepower_machines:furnace",
 	recipe = {
 		{"", "elepower_dynamics:integrated_circuit", ""},
-		{"default:clay_brick", "elepower_machines:machine_block", "default:clay_brick"},
+		{"elepower_dynamics:wound_copper_coil","basic_materials:heating_element", "elepower_dynamics:wound_copper_coil"},
-		{"elepower_dynamics:wound_copper_coil", "default:furnace", "elepower_dynamics:wound_copper_coil"},
+		{epi.clay_brick, "elepower_machines:machine_block", epi.clay_brick},
 	}
 })
 
@@ -560,7 +556,7 @@ minetest.register_craft({
 	output = "elepower_machines:pulverizer",
 	recipe = {
 		{"", "elepower_dynamics:integrated_circuit", ""},
-		{"default:flint", "elepower_machines:machine_block", "default:flint"},
+		{epi.flint, "elepower_machines:machine_block", epi.flint},
 		{"elepower_dynamics:wound_copper_coil", "elepower_dynamics:lead_gear", "elepower_dynamics:wound_copper_coil"},
 	}
 })
@@ -590,7 +586,7 @@ minetest.register_craft({
 	output = "elepower_machines:accumulator",
 	recipe = {
 		{"", "fluid_transfer:fluid_duct", ""},
-		{"default:glass", "elepower_machines:machine_block", "default:glass"},
+		{epi.glass, "elepower_machines:machine_block", epi.glass},
 		{"elepower_dynamics:steel_gear", "elepower_dynamics:servo_valve", "elepower_dynamics:steel_gear"},
 	}
 })
@@ -614,7 +610,7 @@ minetest.register_craft({
 	output = "elepower_machines:lava_generator",
 	recipe = {
 		{"elepower_dynamics:wound_silver_coil", "elepower_dynamics:control_circuit", "elepower_dynamics:wound_silver_coil"},
-		{"default:brick", "elepower_machines:machine_block", "default:brick"},
+		{epi.brick, "elepower_machines:machine_block", epi.brick},
 		{"elepower_dynamics:invar_gear", "elepower_dynamics:servo_valve", "elepower_dynamics:invar_gear"},
 	},
 })
@@ -623,17 +619,17 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:compressor_piston",
 	recipe = {
-		{"", "default:steel_ingot", ""},
+		{"", epi.steel_ingot, ""},
-		{"", "default:steel_ingot", ""},
+		{"", epi.steel_ingot, ""},
-		{"default:bronze_ingot", "default:bronze_ingot", "default:bronze_ingot"},
+		{epi.bronze_ingot, epi.bronze_ingot, epi.bronze_ingot},
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_machines:compressor_piston",
 	recipe = {
-		{"", "default:steel_ingot", ""},
+		{"", epi.steel_ingot, ""},
-		{"", "default:steel_ingot", ""},
+		{"", epi.steel_ingot, ""},
 		{"", "elepower_dynamics:bronze_plate", ""},
 	}
 })
@@ -644,7 +640,7 @@ minetest.register_craft({
 	recipe = {
 		{"elepower_dynamics:integrated_circuit", "elepower_machines:compressor_piston", "elepower_dynamics:wound_copper_coil"},
 		{"elepower_dynamics:steel_gear", "elepower_machines:machine_block", "elepower_dynamics:steel_gear"},
-		{"default:steel_ingot", "elepower_machines:compressor_piston", "default:steel_ingot"},
+		{epi.steel_ingot               , "elepower_machines:compressor_piston", epi.steel_ingot           }
 	}
 })
 
@@ -653,8 +649,8 @@ minetest.register_craft({
 	output = "elepower_machines:turbine_blades",
 	recipe = {
 		{"elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate"},
-		{"elepower_dynamics:steel_plate", "default:steel_ingot",           "elepower_dynamics:steel_plate"},
+		{"elepower_dynamics:steel_plate", epi.steel_ingot                , "elepower_dynamics:steel_plate"},
-		{"elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate"},
+		{"elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate"}
 	}
 })
 
@@ -732,7 +728,7 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_machines:evaporator",
 	recipe = {
-		{"elepower_dynamics:steel_plate", "default:steelblock", "elepower_dynamics:steel_plate"},
+		{"elepower_dynamics:steel_plate", epi.steel_block, "elepower_dynamics:steel_plate"},
 		{"elepower_dynamics:steel_plate", "elepower_machines:machine_block", "elepower_dynamics:steel_plate"},
 		{"elepower_dynamics:induction_coil", "elepower_dynamics:zinc_plate", "elepower_dynamics:induction_coil"},
 	}

elepower_machines/machines/accumulator.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
+
 local CAPACITY = 8000
 
 minetest.register_node("elepower_machines:accumulator", {
@@ -17,7 +22,7 @@ minetest.register_node("elepower_machines:accumulator", {
 	},
 	on_construct = function ( pos )
 		local meta = minetest.get_meta(pos)
-		meta:set_string("water_fluid", "default:water_source")
+		meta:set_string("water_fluid", epr.water_source)
 	end
 })
 
@@ -66,7 +71,7 @@ minetest.register_abm({
 		local amount = 0
 		for _,fpos in pairs(positions) do
 			local node = minetest.get_node(fpos)
-			if node.name == "default:water_source" then
+			if node.name == epr.water_source then
 				amount = amount + 1000
 			end
 		end
@@ -77,7 +82,7 @@ minetest.register_abm({
 		end
 
 		local ndef = minetest.registered_nodes[node.name]
-		local src = "default:water_source"
+		local src = epr.water_source
 		if ndef and ndef._heavy then
 			src = "elepower_nuclear:heavy_water_source"
 			if amount > 1000 then

elepower_machines/machines/alloy_furnace.lua

@@ -23,7 +23,7 @@ elepm.register_crafter("elepower_machines:alloy_furnace", {
 			"elepower_machine_side.png", "elepower_machine_side.png", "elepower_machine_side.png^elepower_alloy_furnace_active.png",
 		},
 	},
-	ele_icon_material_1 ="default_copper_ingot.png",
+	ele_icon_material_1 ="elepower_iron_ingot.png^[multiply:#fcb15f",
-	ele_icon_material_2 ="default_tin_ingot.png",
+	ele_icon_material_2 ="elepower_iron_ingot.png^[multiply:#c1c1c1",
 	groups = {oddly_breakable_by_hand = 1}
 })

elepower_machines/machines/bases/crafter.lua

@@ -1,6 +1,10 @@
 -- This is a crafter type machine base.
 -- It accepts a recipe type registered beforehand.
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 -- Specialized formspec for crafters
 function ele.formspec.get_crafter_formspec(craft_type, power, percent, pos, machine_name, state)
 	local craftstats = elepm.craft.types[craft_type]
@@ -141,9 +145,9 @@ function ele.formspec.get_crafter_formspec(craft_type, power, percent, pos, mach
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(7, 0, state)..
 		"list[context;src;"..x..","..y..";"..in_width..","..in_height..";]"..
@@ -157,7 +161,7 @@ function ele.formspec.get_crafter_formspec(craft_type, power, percent, pos, mach
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 

elepower_machines/machines/bases/fluid_generator.lua

@@ -1,17 +1,22 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic
+
 local function get_formspec_default(power, percent, buffer, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(7, 2.5, state)..
 		ele.formspec.fluid_bar(7, 0, buffer)..
-		"image[3.5,1.5;1,1;default_furnace_fire_bg.png^[lowpart:"..
+		"image[3.5,1.5;1,1;"..epg.furnace_fire_bg.."^[lowpart:"..
-		(percent)..":default_furnace_fire_fg.png]"..
+		(percent)..":"..epg.furnace_fire_fg.."]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 -- A generator that creates power using a fuel

elepower_machines/machines/bases/generator.lua

@@ -1,9 +1,12 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
 
 local function get_formspec_default(power, percent, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(7, 0, state)..
 		"list[context;src;3,1.5;1,1;]"..
@@ -14,7 +17,7 @@ local function get_formspec_default(power, percent, state)
 		"listring[current_player;main]"..
 		"listring[context;src]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 function elepm.register_fuel_generator(nodename, nodedef)

elepower_machines/machines/bases/storage.lua

@@ -1,9 +1,12 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
 
 local function get_formspec_default(power)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"image[2,0.5;1,1;gui_furnace_arrow_bg.png^[transformR180]"..
 		"list[context;src;2,1.5;1,1;]"..
@@ -16,7 +19,7 @@ local function get_formspec_default(power)
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function can_dig(pos, player)

elepower_machines/machines/bucketer.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local function get_formspec(mode, buffer, state)
 	if not mode then
 		mode = 0
@@ -10,9 +14,9 @@ local function get_formspec(mode, buffer, state)
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.state_switcher(0, 0, state)..
 		ele.formspec.fluid_bar(7, 0.75, buffer)..
 		"list[context;src;3.5,1;1,1;]"..
@@ -26,7 +30,7 @@ local function get_formspec(mode, buffer, state)
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer(pos, elapsed)

elepower_machines/machines/coal_alloy_furnace.lua

@@ -1,15 +1,20 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic
+
 local function get_formspec(fuel_percent, item_percent)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		"list[context;src;2,0.5;2,1;]"..
 		"list[context;fuel;2.5,2.5;1,1;]"..
-		"image[2.5,1.5;1,1;default_furnace_fire_bg.png^[lowpart:"..
+		"image[2.5,1.5;1,1;"..epg.furnace_fire_bg.."^[lowpart:"..
-		(100-fuel_percent)..":default_furnace_fire_fg.png]"..
+		(100-fuel_percent)..":"..epg.furnace_fire_fg.."]"..
-		"image[4,1.5;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
+		"image[4,1.5;1,1;"..epg.gui_furnace_arrow_bg.."^[lowpart:"..
-		(item_percent)..":gui_furnace_arrow_fg.png^[transformR270]"..
+		(item_percent)..":"..epg.gui_furnace_arrow_fg.."^[transformR270]"..
 		"list[context;dst;5,0.96;2,2;]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
@@ -19,7 +24,7 @@ local function get_formspec(fuel_percent, item_percent)
 		"listring[current_player;main]"..
 		"listring[context;fuel]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function can_dig(pos, player)

elepower_machines/machines/electrolyzer.lua

@@ -1,7 +1,11 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 elepm.electrolyzer_recipes = {
 	{
-		recipe = "default:water_source 1000",
+		recipe = epr.water_source.." 1000",
 		output = {
 			"elepower_dynamics:hydrogen 600",
 			"elepower_dynamics:oxygen 400",
@@ -35,9 +39,9 @@ local function get_formspec(time, power, input, out1, out2, state)
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.fluid_bar(1, 0, input)..
 		"image[1.2,2.45;0.5,0.5;elepower_gui_icon_fluid_electrolyzer_in.png]"..
@@ -53,7 +57,7 @@ local function get_formspec(time, power, input, out1, out2, state)
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function get_electrolysis_result(buffer)
@@ -174,7 +178,7 @@ ele.register_machine("elepower_machines:electrolyzer", {
 	ele_inrush = 128,
 	fluid_buffers = {
 		input = {
-			accepts = {"default:water_source", "elepower_nuclear:heavy_water_source",
+			accepts = {epr.water_source, "elepower_nuclear:heavy_water_source",
 				"group:biomass", "group:electrolysis_recipe"},
 			drainable = false,
 			capacity = 8000,

elepower_machines/machines/evaporator.lua

@@ -1,14 +1,19 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic
+
 local function get_formspec(power, input, output, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(3.5, 1, state)..
 		ele.formspec.fluid_bar(1, 0, input)..
 		ele.formspec.fluid_bar(7, 0, output)..
-		"image[3.5,2;1,1;gui_furnace_arrow_bg.png^[transformR270]"..
+		"image[3.5,2;1,1;"..epg.gui_furnace_arrow_bg.."^[transformR270]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
@@ -16,7 +21,7 @@ local function get_formspec(power, input, output, state)
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer(pos, elapsed)

elepower_machines/machines/grindstone.lua

@@ -1,14 +1,19 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic
+
 local SPEED = 8
 
 local function get_formspec(item_percent)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		"list[context;src;1.6,1;1,1;]"..
-		"image[3.5,1;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
+		"image[3.5,1;1,1;"..epg.gui_furnace_arrow_bg.."^[lowpart:"..
-		(item_percent)..":gui_furnace_arrow_fg.png^[transformR270]"..
+		(item_percent)..":"..epg.gui_furnace_arrow_fg.."^[transformR270]"..
 		"list[context;dst;4.5,1;2,1;]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
@@ -16,7 +21,7 @@ local function get_formspec(item_percent)
 		"listring[current_player;main]"..
 		"listring[context;src]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function can_dig(pos, player)
@@ -154,7 +159,7 @@ ele.register_base_device("elepower_machines:grindstone", {
 minetest.register_node("elepower_machines:crank", {
 	description = "Hand Crank\nPlace on Grindstone and hold Right-Click",
 	groups = {choppy = 1, oddly_breakable_by_hand = 1},
-	tiles = {"default_wood.png"},
+	tiles = {epg.wood},
 	use_texture_alpha = "clip",
 	drawtype = "nodebox",
 	paramtype = "light",

elepower_machines/machines/lava_cooler.lua

@@ -1,16 +1,21 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic
+local epi = ele.external.ing
 
 local TIME = 5
 
 local cooler_recipes = {
-	["default:cobble"] = {
+	[epi.cobble] = {
 		lava  = 0,
 		water = 0,
 	},
-	["default:obsidian"] = {
+	[epi.obsidian] = {
 		lava  = 1000,
 		water = 0,
 	},
-	["default:stone"] = {
+	[epr.stone] = {
 		lava  = 0,
 		water = 1000,
 	},
@@ -30,25 +35,25 @@ local function get_formspec(item_percent, coolant_buffer, hot_buffer, power, rec
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(3.5, 2.5, state)..
 		ele.formspec.fluid_bar(1, 0, coolant_buffer)..
 		ele.formspec.fluid_bar(7, 0, hot_buffer)..
 		"list[context;dst;3.5,1.5;1,1;]"..
-		"image[2.5,1.5;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
+		"image[2.5,1.5;1,1;"..epg.gui_furnace_arrow_bg.."^[lowpart:"..
-		(item_percent)..":gui_furnace_arrow_fg.png^[transformR270]"..
+		(item_percent)..":"..epg.gui_furnace_arrow_fg.."^[transformR270]"..
-		"image[4.5,1.5;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
+		"image[4.5,1.5;1,1;"..epg.gui_furnace_arrow_bg.."^[lowpart:"..
-		(item_percent)..":gui_furnace_arrow_fg.png^[transformFXR90]"..
+		(item_percent)..":"..epg.gui_furnace_arrow_fg.."^[transformFXR90]"..
 		table.concat(rclist, "")..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function lava_cooler_timer(pos, elapsed)
@@ -131,11 +136,11 @@ ele.register_machine("elepower_machines:lava_cooler", {
 	fluid_buffers = {
 		coolant = {
 			capacity = 8000,
-			accepts  = {"default:water_source"},
+			accepts  = {epr.water_source},
 		},
 		hot = {
 			capacity = 8000,
-			accepts  = {"default:lava_source"},
+			accepts  = {epi.lava_source},
 		}
 	},
 	tiles = {
@@ -148,8 +153,8 @@ ele.register_machine("elepower_machines:lava_cooler", {
 
 		inv:set_size("dst", 1)
 
-		meta:set_string("recipe", "default:cobble")
+		meta:set_string("recipe", epi.cobble)
-		meta:set_string("formspec", get_formspec(0,nil,nil,nil,cooler_recipes, "default:cobble"))
+		meta:set_string("formspec", get_formspec(0,nil,nil,nil,cooler_recipes, epi.cobble))
 	end,
 	on_timer = lava_cooler_timer,
 	on_receive_fields = function (pos, formname, fields, sender)

elepower_machines/machines/lava_generator.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ref
+
 ele.register_fluid_generator("elepower_machines:lava_generator", {
 	description = "Lava Generator",
 	ele_usage = 64,
@@ -16,7 +20,7 @@ ele.register_fluid_generator("elepower_machines:lava_generator", {
 	fluid_buffers = {
 		lava = {
 			capacity  = 8000,
-			accepts   = {"default:lava_source"},
+			accepts   = {epi.lava_source},
 			drainable = false
 		}
 	},

elepower_machines/machines/pcb_plant.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic
+
 local function get_formspec(power, input, state, active, percent)
 	local t = "image[3.5,1.75;1,1;elepower_uv_bulb.png]"
 
@@ -11,14 +16,14 @@ local function get_formspec(power, input, state, active, percent)
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(7, 0, state)..
 		ele.formspec.fluid_bar(1, 0, input)..
-		"image[3.5,1;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
+		"image[3.5,1;1,1;"..epg.gui_furnace_arrow_bg.."^[lowpart:"..
-			  (percent)..":gui_furnace_arrow_fg.png^[transformR270]"..
+			  (percent)..":"..epg.gui_furnace_arrow_fg.."^[transformR270]"..
 		t..
 		"list[context;src;2.5,1;1,1;]"..
 		"list[context;dst;4.5,1;1,1;]"..
@@ -29,7 +34,7 @@ local function get_formspec(power, input, state, active, percent)
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer(pos, elapsed)

elepower_machines/machines/pump.lua

@@ -1,19 +1,23 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epi = ele.external.ing
 
 local c_air = minetest.get_content_id("air")
 
 local function get_formspec(power, fluid, state, level)
 	if not level then level = 0 end
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.state_switcher(7, 2.5, state)..
 		ele.formspec.power_meter(power)..
 		ele.formspec.fluid_bar(7, 0, fluid)..
 		"label[1,0;Pump level: "..level.."]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 -- Dig a node in a certain radius on the same Y level
@@ -92,7 +96,7 @@ local function timer(pos, elapsed)
 		local dig_node = pliquid
 		local amount = 1000
 		if pliquid == "elepower_nuclear:heavy_water_source" and heavy then
-			dig_node = "default:water_source"
+			dig_node = epr.water_source
 			amount = 200
 		end
 
@@ -115,7 +119,7 @@ local function timer(pos, elapsed)
 
 			-- Valid liquid, proceed pumping
 			if bucket.liquids[node.name] and bucket.liquids[node.name].source == node.name then
-				if node.name == "default:water_source" and heavy then
+				if node.name == epr.water_source and heavy then
 					node.name = "elepower_nuclear:heavy_water_source"
 				end
 
@@ -130,7 +134,7 @@ local function timer(pos, elapsed)
 
 		if pliquid ~= "" then
 			-- Filter was installed
-			if pliquid == "default:water_source" and heavy and fl_buffer.amount > 0 then
+			if pliquid == epr.water_source and heavy and fl_buffer.amount > 0 then
 				pliquid = "elepower_nuclear:heavy_water_source"
 				fl_buffer.amount = 0
 				refresh = true
@@ -143,7 +147,7 @@ local function timer(pos, elapsed)
 			local dug = dig_node_leveled_radius(ppos, 16, dig_node)
 			if not dug then
 				local node = minetest.get_node_or_nil(ppos)
-				if node.name == "default:water_source" and heavy then
+				if node.name == epr.water_source and heavy then
 					node.name = "elepower_nuclear:heavy_water_source"
 				end
 

elepower_machines/machines/steam_turbine.lua

@@ -1,15 +1,19 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local function get_formspec(power, percent, buffer, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(3.5, 1.5, state)..
 		ele.formspec.fluid_bar(7, 0, buffer)..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 ele.register_fluid_generator("elepower_machines:steam_turbine", {

elepower_machines/machines/wind_turbine.lua

@@ -1,15 +1,19 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic
 
 local function get_formspec_default(power, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(7, 0, state)..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 -- Primitive wind checking function
@@ -164,7 +168,7 @@ minetest.register_entity("elepower_machines:wind_turbine_blades", {
 		visual   = "mesh",
 		mesh     = "elepower_wind_blades.obj",
 		physical = true,
-		textures = {"default_wood.png"},
+		textures = {epg.wood},
 		backface_culling = false,
 		visual_size = {x = 10, y = 10},
 	},

elepower_mining/crafting.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 minetest.register_craft({
 	output = "elepower_mining:miner_controller",
 	recipe = {
@@ -11,16 +15,16 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_mining:miner_core",
 	recipe = {
-		{"default:steelblock", "elepower_dynamics:invar_gear", "default:steelblock"},
+		{epi.steel_block, "elepower_dynamics:invar_gear", epi.steel_block},
 		{"elepower_dynamics:invar_gear", "elepower_dynamics:servo_valve", "elepower_dynamics:invar_gear"},
-		{"default:steelblock", "elepower_dynamics:invar_gear", "default:steelblock"},
+		{epi.steel_block, "elepower_dynamics:invar_gear", epi.steel_block},
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_mining:miner_drill",
 	recipe = {
-		{"default:steelblock", "elepower_dynamics:induction_coil_advanced", "default:steelblock"},
+		{epi.steel_block, "elepower_dynamics:induction_coil_advanced", epi.steel_block},
 		{"basic_materials:motor", "elepower_machines:machine_block", "basic_materials:motor"},
 		{"elepower_tools:hand_drill", "elepower_tools:hand_drill", "elepower_tools:hand_drill"},
 	}

elepower_mining/miner.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local structures = {}
 local ores = {}
 local TIMER = 10
@@ -100,9 +104,9 @@ local function get_formspec(timer, power, buffer, state)
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(0, 2.5, state)..
 		ele.formspec.fluid_bar(7, 0, buffer)..
@@ -113,7 +117,7 @@ local function get_formspec(timer, power, buffer, state)
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer(pos, elapsed)
@@ -195,7 +199,7 @@ local function on_timer(pos, elapsed)
 	meta:set_string("formspec", get_formspec(wp, pow_buffer, buffer, state))
 	meta:set_int("storage", pow_buffer.storage)
 	meta:set_int("water_fluid_storage", buffer.amount)
-	meta:set_string("water_fluid", "default:water_source")
+	meta:set_string("water_fluid", epr.water_source)
 	meta:set_int("work", work)
 
 	return refresh
@@ -227,7 +231,7 @@ ele.register_machine("elepower_mining:miner_controller", {
 	fluid_buffers = {
 		water = {
 			capacity  = 16000,
-			accepts   = {"default:water_source"},
+			accepts   = {epr.water_source},
 			drainable = false,
 		},
 	},
@@ -320,7 +324,7 @@ local function add_ores()
 			and drop ~= item.ore
 			and drop ~= ""
 			and item.ore_type == "scatter"
-			and item.wherein == "default:stone"
+			and item.wherein == epr.stone
 			and item.clust_scarcity ~= nil and item.clust_scarcity > 0
 			and item.clust_num_ores ~= nil and item.clust_num_ores > 0
 			and item.y_max ~= nil and item.y_min ~= nil then

elepower_nuclear/crafting.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 -- Radiation-shielded Lead Machine Chassis
 minetest.register_craft({
 	output = "elepower_nuclear:machine_block",
@@ -204,9 +208,9 @@ elepm.register_craft({
 minetest.register_craft({
 	output = "elepower_nuclear:control_rod",
 	recipe = {
-		{"", "elepower_dynamics:silver_plate", "moreores:silver_ingot"},
+		{"", "elepower_dynamics:silver_plate", epi.silver_ingot},
-		{"elepower_dynamics:silver_plate", "moreores:silver_ingot", "elepower_dynamics:silver_plate"},
+		{"elepower_dynamics:silver_plate", epi.silver_ingot, "elepower_dynamics:silver_plate"},
-		{"moreores:silver_ingot", "elepower_dynamics:silver_plate", ""},
+		{epi.silver_ingot, "elepower_dynamics:silver_plate", ""},
 	}
 })
 
@@ -225,8 +229,8 @@ minetest.register_craft({
 	output = "elepower_nuclear:pressure_vessel",
 	recipe = {
 		{"elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate", "elepower_dynamics:steel_plate"},
-		{"default:steelblock", "elepower_dynamics:portable_tank", "default:steelblock"},
+		{epi.steel_block, "elepower_dynamics:portable_tank", epi.steel_block},
-		{"elepower_dynamics:steel_plate", "default:steelblock", "elepower_dynamics:steel_plate"},
+		{"elepower_dynamics:steel_plate", epi.steel_block, "elepower_dynamics:steel_plate"},
 	}
 })
 

elepower_nuclear/machines/enrichment_plant.lua

@@ -1,15 +1,22 @@
+
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 -- Nuclear fuel enrichment plant
 
 local function get_formspec(craft_type, power, progress, pos)
 	if not progress then progress = 0 end
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"list[context;src;2,0.75;1,1;]"..
-		"image[3.5,0.75;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
+		"image[3.5,0.75;1,1;elenuclear_gui_icon_bg.png^[lowpart:"..
-		(progress)..":gui_furnace_arrow_fg.png^[transformR270]"..
+		(progress)..":elenuclear_gui_icon_fg.png]"..
+		--"image[3.5,0.75;1,1;elenuclear_gui_icon_bg.png^[lowpart:"..
+		--(progress)..":elenuclear_gui_icon_fg.png]"..
 		"list[context;dst;5,0.25;2,2;]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
@@ -19,7 +26,7 @@ local function get_formspec(craft_type, power, progress, pos)
 		"listring[current_player;main]"..
 		"listring[context;dst]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 elepm.register_craft_type("enrichment", {

elepower_nuclear/machines/fission_reactor.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+local epr = ele.external.ref
+
 --[[
 	Reactor fitness check:
 		8x8x8 area surrounding the core must either contain..
@@ -31,8 +36,8 @@ local function calculate_fitness(pos)
 	local data = manip:get_data()
 
 	local ids = {
-		c_water = minetest.get_content_id("default:water_source"),
+		c_water = minetest.get_content_id(epr.water_source),
-		c_lava  = minetest.get_content_id("default:lava_source"),
+		c_lava  = minetest.get_content_id(epi.lava_source),
 	}
 
 	local excession = 0
@@ -144,9 +149,9 @@ local function get_core_formspec(heat, power)
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		"list[context;fuel;2.5,0;3,3;]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
@@ -158,7 +163,7 @@ local function get_core_formspec(heat, power)
 		"listring[current_player;main]"..
 		"listring[context;fuel]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function get_controller_formspec(rod_pos, selected)
@@ -182,9 +187,9 @@ local function get_controller_formspec(rod_pos, selected)
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		table.concat( ctrls, "" )..
 		"button[0,3.5;1.5,0.5;next;Next]"..
 		"button[1.5,3.5;1.5,0.5;prev;Previous]"..
@@ -199,20 +204,20 @@ local function get_controller_formspec(rod_pos, selected)
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function get_port_formspec(cool, hot)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.fluid_bar(0, 0, cool)..
 		ele.formspec.fluid_bar(7, 0, hot)..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function reactor_core_timer(pos)
@@ -556,7 +561,7 @@ ele.register_base_device("elepower_nuclear:reactor_fluid_port", {
 	fluid_buffers = {
 		cool = {
 			capacity  = 16000,
-			accepts   = {"default:water_source", "elepower_nuclear:coolant_source"},
+			accepts   = {epr.water_source, "elepower_nuclear:coolant_source"},
 			drainable = false,
 		},
 		hot = {

elepower_nuclear/machines/fusion_reactor.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local struct_cache = {}
 
 local iC = 1 -- Casing
@@ -117,9 +121,9 @@ local function controller_formspec(in1, in2, out, power, time, state)
 	end
 
 	return "size[8,3.25]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.fluid_bar(1, 0, in1)..
 		ele.formspec.fluid_bar(2, 0, in2)..

elepower_nuclear/machines/heat_exchanger.lua

@@ -1,18 +1,23 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epg = ele.external.graphic 
+
 local function get_formspec(heat, cold, water, steam)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.fluid_bar(0, 0, heat)..
 		ele.formspec.fluid_bar(1, 0, cold)..
-		"image[3.5,1;1,1;gui_furnace_arrow_bg.png^[transformR270]"..
+		"image[3.5,1;1,1;"..epg.gui_furnace_arrow_bg.."^[transformR270]"..
 		ele.formspec.fluid_bar(6, 0, water)..
 		ele.formspec.fluid_bar(7, 0, steam)..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local heat_recipes = {
@@ -122,7 +127,7 @@ ele.register_machine("elepower_nuclear:heat_exchanger", {
 		},
 		water = {
 			capacity  = 64000,
-			accepts   = {"default:water_source"},
+			accepts   = {epr.water_source},
 			drainable = false,
 		},
 		steam = {

elepower_nuclear/machines/solar_neutron_activator.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.reg
+local epg = ele.external.graphic
+
 local recipes = {
 	{
 		input  = "elepower_dynamics:lithium_gas 100",
@@ -24,17 +29,17 @@ local function get_recipe(input)
 end
 
 local function get_formspec(inp, outp, solar, percent)
-	local bar = "image[3.5,1.5;1,1;gui_furnace_arrow_bg.png^[transformR270]"
+	local bar = "image[3.5,1.5;1,1;"..epg.gui_furnace_arrow_bg.."^[transformR270]"
 
 	if percent ~= nil then
-		bar = "image[3.5,1.5;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
+		bar = "image[3.5,1.5;1,1;"..epg.gui_furnace_arrow_bg.."^[lowpart:"..
-			  (percent)..":gui_furnace_arrow_fg.png^[transformR270]"
+			  (percent)..":"..epg.gui_furnace_arrow_fg.."^[transformR270]"
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.fluid_bar(0, 0, inp)..
 		bar..
 		"label[3.4,0.5;Light: "..solar.."%]"..
@@ -42,7 +47,7 @@ local function get_formspec(inp, outp, solar, percent)
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function on_timer (pos, elapsed)

elepower_nuclear/nodes.lua

@@ -1,4 +1,9 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epg = ele.external.graphic
+local eps = ele.external.sounds
+
 minetest.register_node("elepower_nuclear:machine_block", {
 	description = "Radiation-shielded Lead Machine Chassis\nContains dangerous ionizing radiation",
 	tiles = {
@@ -10,10 +15,10 @@ minetest.register_node("elepower_nuclear:machine_block", {
 
 minetest.register_node("elepower_nuclear:stone_with_uranium", {
 	description = "Uranium Ore",
-	tiles = {"default_stone.png^elenuclear_mineral_uranium.png"},
+	tiles = {epg.stone.."^elenuclear_mineral_uranium.png"},
 	groups = {cracky = 2},
 	drop = 'elepower_nuclear:uranium_lump',
-	sounds = default.node_sound_stone_defaults(),
+	sounds = eps.node_sound_stone,
 })
 
 minetest.register_node("elepower_nuclear:fusion_coil", {

elepower_nuclear/worldgen.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 --------------
 -- Worldgen --
 --------------
@@ -8,7 +12,7 @@
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_nuclear:stone_with_uranium",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 16 * 16 * 16,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -19,7 +23,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_nuclear:stone_with_uranium",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 16 * 16 * 16,
 	clust_num_ores = 5,
 	clust_size     = 3,
@@ -30,7 +34,7 @@ minetest.register_ore({
 minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "elepower_nuclear:stone_with_uranium",
-	wherein        = "default:stone",
+	wherein        = epr.stone,
 	clust_scarcity = 16 * 16 * 16,
 	clust_num_ores = 5,
 	clust_size     = 3,

elepower_papi/formspec.lua

@@ -1,3 +1,8 @@
+
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epg = ele.external.graphic
+
 -- Formspec helpers
 
 ele.formspec = {}
@@ -62,7 +67,7 @@ end
 
 -- Fluid bar for formspec
 function ele.formspec.fluid_bar(x, y, fluid_buffer)
-	local texture = "default_water.png"
+	local texture = epg.water
 	local metric  = 0
 	local tooltip = ("tooltip[%f,%f;1,2.5;%s]"):format(x, y, "Empty Buffer")
 	

elepower_papi/helpers.lua

@@ -1,3 +1,6 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local eps = ele.external.sounds
 
 -----------------------
 -- Utility Functions --
@@ -150,7 +153,7 @@ function ele.helpers.register_liquid(liquid, def)
 			liquidtype = state,
 			liquid_alternative_source = mod..":"..liquid.."_source",
 			liquid_alternative_flowing = mod..":"..liquid.."_flowing",
-			sounds = default.node_sound_water_defaults(),
+			sounds = eps.node_sound_water,
 		}
 
 		for key,val in pairs(def) do

elepower_papi/init.lua

@@ -11,6 +11,7 @@ ele.unit = "EpU"
 ele.unit_description = "Elepower Unit"
 
 -- APIs
+dofile(modpath..'/external_nodes_items.lua')
 dofile(modpath..'/helpers.lua')
 dofile(modpath..'/network.lua')
 dofile(modpath..'/formspec.lua')

elepower_solar/crafting.lua

@@ -1,10 +1,14 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 -- Solar Generator
 minetest.register_craft({
 	output = "elepower_solar:solar_generator",
 	recipe = {
-		{"default:glass", "elepower_dynamics:pv_cell", "default:glass"},
+		{epi.glass, "elepower_dynamics:pv_cell", epi.glass},
-		{"elepower_dynamics:pv_cell", "default:glass", "elepower_dynamics:pv_cell"},
+		{"elepower_dynamics:pv_cell", epi.glass, "elepower_dynamics:pv_cell"},
-		{"default:steel_ingot", "elepower_dynamics:battery", "default:steel_ingot"},
+		{epi.steel_ingot, "elepower_dynamics:battery", epi.steel_ingot},
 	}
 })

elepower_solar/generator.lua

@@ -1,17 +1,21 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local function get_formspec_default(power, percent, state)
 	if not percent then percent = 0 end
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		ele.formspec.state_switcher(7, 0, state)..
 		"image[3.5,1.5;1,1;elepower_gui_icon_elepower_bg.png^[lowpart:"..
 		(percent)..":elepower_gui_icon_elepower.png]"..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 -- A generator that creates power using sunlight

elepower_thermal/machines/evaporation_plant.lua

@@ -1,9 +1,15 @@
+
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+local epi = ele.external.ing
+
 -- Thermal Evaporation Plant
 -- Used to extract salt from water
 elethermal.cache = {}
 local results = {
 	{
-		input = "default:water_source 1000",
+		input = epr.water_source.." 1000",
 		output = "elepower_thermal:brine_source 100",
 		heat = 400
 	},
@@ -143,9 +149,9 @@ local function controller_formspec (input, output, heat)
 			  (100 * heat / 1000)..":elethermal_gradient.png^[transformR270]"
 	end
 	return "size[8,4.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		bar..
 		"tooltip[1.5,3.5;6,1;Heat: "..heat.."K]"..
 		ele.formspec.fluid_bar(0, 0, input)..
@@ -259,7 +265,7 @@ minetest.register_node("elepower_thermal:evaporator_controller", {
 	fluid_buffers = {
 		input = {
 			capacity  = 8000,
-			accepts   = {"elepower_thermal:brine_source", "default:water_source"},
+			accepts   = {"elepower_thermal:brine_source", epr.water_source},
 			drainable = false,
 		},
 		output = {

elepower_tome/i_eletome_additional_info.lua

@@ -11,6 +11,10 @@
 ---------------------------------------------------
 --            Additional Information             --
 --------------------------------------------------- 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+local epr = ele.external.ref
 
 -- This is a store of custom text and data metrics used 
 -- by the tome. In some cases some of these could be added
@@ -263,7 +267,7 @@ eletome.ai.nodes["getting_started"]    = {how_use_1 = "This is a getting started
 										 hu_img_1 = {"container[1.0,6.6]"..
 													-- line 1
 													"style_type[item_image_button;bgimg=elepower_tome_bgimg_2.png]"..
-													"item_image_button[0.375,0.25;1,1;default:blueberry_bush_leaves;leaves;]"..
+													"item_image_button[0.375,0.25;1,1;"..epi.blueberry_bush_leaves..";leaves;]"..
 													"tooltip[leaves;Any Leaves;#30434c;#f9f9f9]"..
 													"style[num;font_size=-2;font=bold;textcolor=#FFF]"..
 													"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>174</b></right></style>]"..
@@ -286,7 +290,7 @@ eletome.ai.nodes["getting_started"]    = {how_use_1 = "This is a getting started
 													"tooltip[1.875,1.625;0.75,0.75;Crafting;#30434c;#f9f9f9]"..
 													"item_image_button[2.75,1.5;1,1;basic_materials:empty_spool;basic_materials:empty_spool;]"..
 													"hypertext[2.75,2.15;1,1;num;<style size=12><right><b>24</b></right></style>]"..
-													"item_image_button[3.875,1.5;1,1;default:copper_ingot;default:copper_ingot;]"..
+													"item_image_button[3.875,1.5;1,1;"..epi.copper_ingot..";"..epi.copper_ingot..";]"..
 													"hypertext[3.875,2.15;1,1;num;<style size=12><right><b>12</b></right></style>]"..
 													"image[5,1.625;0.75,0.75;elepower_tome_icon_crafting.png]"..
 													"tooltip[5,1.625;0.75,0.75;Crafting;#30434c;#f9f9f9]"..
@@ -295,13 +299,13 @@ eletome.ai.nodes["getting_started"]    = {how_use_1 = "This is a getting started
 													-- line 3 -- bug single digits vanish randomly
 													"item_image_button[0.25,2.75;1,1;basic_materials:copper_wire;basic_materials:copper_wire;]"..
 													"hypertext[0.25,3.4;1,1;num;<style size=12><right><b>02</b></right></style>]"..
-													"item_image_button[1.375,2.75;1,1;default:mese_crystal_fragment;default:mese_crystal_fragment;]"..
+													"item_image_button[1.375,2.75;1,1;"..epi.mese_crystal_fragment..";"..epi.mese_crystal_fragment..";]"..
 													"hypertext[1.375,3.4;1,1;num;<style size=12><right><b>02</b></right></style>]"..
 													"item_image_button[2.5,2.75;1,1;basic_materials:plastic_sheet;basic_materials:plastic_sheet;]"..
 													"hypertext[2.5,3.4;1,1;num2;<style size=12><right><b>02</b></right></style>]"..
-													"item_image_button[3.625,2.75;1,1;default:steel_ingot;default:steel_ingot;]"..
+													"item_image_button[3.625,2.75;1,1;"..epi.steel_ingot..";"..epi.steel_ingot..";]"..
 													"hypertext[3.625,3.4;1,1;num;<style size=12><right><b>02</b></right></style>]"..
-													"item_image_button[4.75,2.75;1,1;default:copper_ingot;default:copper_ingot;]"..
+													"item_image_button[4.75,2.75;1,1;"..epi.copper_ingot..";"..epi.copper_ingot..";]"..
 													"hypertext[4.75,3.4;1,1;num;<style size=12><right><b>01</b></right></style>]"..
 													"image[5.875,2.875;0.75,0.75;elepower_tome_icon_crafting.png]"..
 													"tooltip[5.875,2.875;0.75,0.75;Crafting;#30434c;#f9f9f9]"..
@@ -312,20 +316,20 @@ eletome.ai.nodes["getting_started"]    = {how_use_1 = "This is a getting started
 											        "style_type[item_image_button;bgimg=elepower_tome_bgimg_2.png]"..
 													--line 1
 													"container[2.5,0]"..
-													"item_image_button[0.375,0.25;1,1;default:stone;default:stone;]"..
+													"item_image_button[0.375,0.25;1,1;"..epr.stone..";"..epr.stone..";]"..
 													"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>08</b></right></style>]"..
 													"image[1.5,0.375;0.75,0.75;elepower_tome_icon_crafting.png]"..
 													"tooltip[1.5,0.25;0.75,0.75;Crafting;#30434c;#f9f9f9]"..
-													"item_image_button[2.375,0.25;1,1;default:furnace;default:furnace;]"..
+													"item_image_button[2.375,0.25;1,1;"..epi.furnace..";"..epi.furnace..";]"..
 													"hypertext[2.375,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..
 													"container_end[]"..
 													-- line 2
 													"container[2.5,1.25]"..													
-													"item_image_button[0.375,0.25;1,1;default:sand;default:sand;]"..
+													"item_image_button[0.375,0.25;1,1;"..epi.sand..";"..epi.sand..";]"..
 													"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>03</b></right></style>]"..
 													"image[1.5,0.375;0.75,0.75;elepower_tome_icon_cooking.png]"..
 													"tooltip[1.5,0.25;0.75,0.75;Cooking;#30434c;#f9f9f9]"..
-													"item_image_button[2.375,0.25;1,1;default:glass;default:glass;]"..
+													"item_image_button[2.375,0.25;1,1;"..epi.glass..";"..epi.glass..";]"..
 													"hypertext[2.375,0.9;1,1;num;<style size=12><right><b>03</b></right></style>]"..													
 													"container_end[]"..
 													-- line 3
@@ -341,7 +345,7 @@ eletome.ai.nodes["getting_started"]    = {how_use_1 = "This is a getting started
 													"container_end[]"..
 													-- line 4
 													"container[0.875,3.75]"..													
-													"item_image_button[0.375,0.25;1,1;default:copper_ingot;default:copper_ingot;]"..
+													"item_image_button[0.375,0.25;1,1;"..epi.copper_ingot..";"..epi.copper_ingot..";]"..
 													"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>04</b></right></style>]"..
 													"item_image_button[1.5,0.25;1,1;moreores:silver_ingot;moreores:silver_ingot;]"..
 													"hypertext[1.5,0.9;1,1;num;<style size=12><right><b>02</b></right></style>]"..
@@ -356,9 +360,9 @@ eletome.ai.nodes["getting_started"]    = {how_use_1 = "This is a getting started
 													"container_end[]"..
 													-- line 5
 													"container[0.75,5]"..
-													"item_image_button[0.375,0.25;1,1;default:steel_ingot;default:steel_ingot;]"..
+													"item_image_button[0.375,0.25;1,1;"..epi.steel_ingot..";"..epi.steel_ingot..";]"..
 													"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>04</b></right></style>]"..
-													"item_image_button[1.5,0.25;1,1;default:glass;default:glass;]"..
+													"item_image_button[1.5,0.25;1,1;"..epi.glass..";"..epi.glass..";]"..
 													"hypertext[1.5,0.9;1,1;num;<style size=12><right><b>03</b></right></style>]"..
 													"item_image_button[2.625,0.25;1,1;elepower_dynamics:brass_gear;elepower_dynamics:brass_gear;]"..
 													"hypertext[2.625,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..													
@@ -371,11 +375,11 @@ eletome.ai.nodes["getting_started"]    = {how_use_1 = "This is a getting started
 													"container_end[]"..
 													-- line 6
 													"container[0.75,6.25]"..
-													"item_image_button[0.375,0.25;1,1;default:steel_ingot;default:steel_ingot;]"..
+													"item_image_button[0.375,0.25;1,1;"..epi.steel_ingot..";"..epi.steel_ingot..";]"..
 													"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>03</b></right></style>]"..
 													"item_image_button[1.5,0.25;1,1;elepower_dynamics:wound_copper_coil;elepower_dynamics:wound_copper_coil;]"..
 													"hypertext[1.5,0.9;1,1;num;<style size=12><right><b>02</b></right></style>]"..
-													"item_image_button[2.625,0.25;1,1;default:furnace;default:furnace;]"..
+													"item_image_button[2.625,0.25;1,1;"..epi.furnace..";"..epi.furnace..";]"..
 													"hypertext[2.625,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..													
 													"item_image_button[3.75,0.25;1,1;elepower_machines:machine_block;elepower_machines:machine_block;]"..
 													"hypertext[3.75,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..																										
@@ -408,7 +412,7 @@ eletome.ai.nodes["first_pcb_creation"] = {how_use_1 = "More advanced machines re
 															"style_type[item_image_button;bgimg=elepower_tome_bgimg_2.png]"..
 															--line 1
 															"container[0.5,0]"..
-															"item_image_button[0.375,0.25;1,1;default:copper_ingot;default:copper_ingot;]"..
+															"item_image_button[0.375,0.25;1,1;"..epi.copper_ingot..";"..epi.copper_ingot..";]"..
 															"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>04</b></right></style>]"..
 															"image[1.5,0.375;0.75,0.75;elepower_tome_icon_grinding.png]"..
 															"tooltip[1.5,0.25;0.75,0.75;Grinding;#30434c;#f9f9f9]"..
@@ -427,7 +431,7 @@ eletome.ai.nodes["first_pcb_creation"] = {how_use_1 = "More advanced machines re
 															"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..
 															"image[1.5,0.375;0.75,0.75;elepower_tome_mouse_rght_click.png]"..
 															"tooltip[1.5,0.25;0.75,0.75;Right Click;#30434c;#f9f9f9]"..
-															"item_image_button[2.375,0.25;1,1;default:water_source;default:water_source;]"..
+															"item_image_button[2.375,0.25;1,1;"..epr.water_source..";"..epr.water_source..";]"..
 															"hypertext[2.375,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..
 															"image[3.5,0.375;0.75,0.75;elepower_tome_icon_output.png]"..
 															"tooltip[3.5,0.25;0.75,0.75;Turns Into;#30434c;#f9f9f9]"..
@@ -436,11 +440,11 @@ eletome.ai.nodes["first_pcb_creation"] = {how_use_1 = "More advanced machines re
 															"container_end[]"..
 															-- line 3
 															"container[1.125,2.5]"..
-															"item_image_button[0.375,0.25;1,1;default:copper_ingot;default:copper_ingot;]"..
+															"item_image_button[0.375,0.25;1,1;"..epi.copper_ingot..";"..epi.copper_ingot..";]"..
 															"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>05</b></right></style>]"..
-															"item_image_button[1.5,0.25;1,1;default:gold_ingot;default:gold_ingot;]"..
+															"item_image_button[1.5,0.25;1,1;"..epi.gold_ingot..";"..epi.gold_ingot..";]"..
 															"hypertext[1.5,0.9;1,1;num;<style size=12><right><b>03</b></right></style>]"..
-															"item_image_button[2.625,0.25;1,1;default:mese_crystal;default:mese_crystal;]"..
+															"item_image_button[2.625,0.25;1,1;"..epi.mese_crystal..";"..epi.mese_crystal..";]"..
 															"hypertext[2.625,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..																																						
 															"image[3.75,0.375;0.75,0.75;elepower_tome_icon_crafting.png]"..
 															"tooltip[3.75,0.25;0.75,0.75;Crafting;#30434c;#f9f9f9]"..
@@ -477,7 +481,7 @@ eletome.ai.nodes["upgrading_machines"] = { how_use_1 = "Some machines can be upg
 														"style_type[item_image_button;bgimg=elepower_tome_bgimg_2.png]"..													
 														-- line 1
 														"container[0.15,-0.1]"..
-														"item_image_button[0.375,0.25;1,1;default:blueberry_bush_leaves;leaves;]"..
+														"item_image_button[0.375,0.25;1,1;"..epi.blueberry_bush_leaves..";leaves;]"..
 														"tooltip[leaves;Any Leaves;#30434c;#f9f9f9]"..
 														"style[num;font_size=-2;font=bold;textcolor=#FFF]"..
 														"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>126</b></right></style>]"..
@@ -525,13 +529,13 @@ eletome.ai.nodes["upgrading_machines"] = { how_use_1 = "Some machines can be upg
 														"container_end[]"..	
 													-- line 4
 														"container[-0.4,3.65]"..
-														"item_image_button[0.375,0.25;1,1;default:coal_lump;default:coal_lump;]"..
+														"item_image_button[0.375,0.25;1,1;"..epi.coal_lump..";"..epi.coal_lump..";]"..
 														"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>04</b></right></style>]"..
 														"image[1.5,0.375;0.75,0.75;elepower_tome_icon_grinding.png]"..
 														"tooltip[1.5,0.25;0.75,0.75;Grinding;#30434c;#f9f9f9]"..
 														"item_image_button[2.375,0.25;1,1;elepower_dynamics:coal_dust;elepower_dynamics:coal_dust;]"..
 														"hypertext[2.375,0.9;1,1;num;<style size=12><right><b>04</b></right></style>]"..
-														"item_image_button[3.5,0.25;1,1;default:coal_lump;default:coal_lump;]"..
+														"item_image_button[3.5,0.25;1,1;"..epi.coal_lump..";"..epi.coal_lump..";]"..
 														"hypertext[3.5,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..
 														"image[4.625,0.375;0.75,0.75;elepower_tome_icon_alloying.png]"..
 														"tooltip[4.625,0.375;0.75,0.75;Alloying;#30434c;#f9f9f9]"..
@@ -545,7 +549,7 @@ eletome.ai.nodes["upgrading_machines"] = { how_use_1 = "Some machines can be upg
 														"container_end[]"..	
 													-- line 5
 														"container[2.25,4.9]"..
-														"item_image_button[0.375,0.25;1,1;default:tin_ingot;default:tin_ingot;]"..
+														"item_image_button[0.375,0.25;1,1;"..epi.tin_ingot..";"..epi.tin_ingot..";]"..
 														"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>08</b></right></style>]"..
 														"image[1.5,0.375;0.75,0.75;elepower_tome_icon_compressing.png]"..
 														"tooltip[1.5,0.375;0.75,0.75;Compressing;#30434c;#f9f9f9]"..
@@ -573,7 +577,7 @@ eletome.ai.nodes["upgrading_machines"] = { how_use_1 = "Some machines can be upg
 														"container[0,7.4]"..
 														"item_image_button[0.25,0.25;1,1;elepower_dynamics:tin_plate;elepower_dynamics:tin_plate;]"..
 														"hypertext[0.25,0.9;1,1;num;<style size=12><right><b>04</b></right></style>]"..
-														"item_image_button[1.375,0.25;1,1;default:mese_crystal_fragment;default:mese_crystal_fragment;]"..
+														"item_image_button[1.375,0.25;1,1;"..epi.mese_crystal_fragment..";"..epi.mese_crystal_fragment..";]"..
 														"hypertext[1.375,0.9;1,1;num;<style size=12><right><b>02</b></right></style>]"..
 														"item_image_button[2.5,0.25;1,1;elepower_dynamics:graphite_rod;elepower_dynamics:graphite_rod;]"..
 														"hypertext[2.5,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..
@@ -589,7 +593,7 @@ eletome.ai.nodes["upgrading_machines"] = { how_use_1 = "Some machines can be upg
 														"container_end[]"..	
 													-- line 8
 														"container[1,8.65]"..
-														"item_image_button[0.375,0.25;1,1;default:steel_ingot;default:steel_ingot;]"..
+														"item_image_button[0.375,0.25;1,1;"..epi.steel_ingot..";"..epi.steel_ingot..";]"..
 														"hypertext[0.375,0.9;1,1;num;<style size=12><right><b>01</b></right></style>]"..
 														"item_image_button[1.5,0.25;1,1;elepower_dynamics:wound_silver_coil;elepower_dynamics:wound_silver_coil;]"..
 														"hypertext[1.5,0.9;1,1;num;<style size=12><right><b>02</b></right></style>]"..
@@ -605,11 +609,11 @@ eletome.ai.nodes["upgrading_machines"] = { how_use_1 = "Some machines can be upg
 									     }
 
 -- Generators Page
-eletome.ai.nodes["elepower_machines:generator"]      = {lb_top_img = "default:coal_lump", 
+eletome.ai.nodes["elepower_machines:generator"]      = {lb_top_img = epi.coal_lump, 
 														lb_top_tt = "Burnable Items",
 														lb_btm_tt = " EpU generated\nper second"
 													   }
-eletome.ai.nodes["elepower_machines:lava_generator"] = {lb_top_img = "default:lava_source",
+eletome.ai.nodes["elepower_machines:lava_generator"] = {lb_top_img = epi.lava_source,
 														lb_btm_tt = " EpU generated\nper 125 lava/second"
 													   }
 eletome.ai.nodes["elepower_machines:fuel_burner"]    = {lb_top_img = "elepower_farming:biofuel_source",
@@ -651,7 +655,7 @@ eletome.ai.nodes["elepower_machines:super_power_cell_0"]      = {lb_top_img = "e
 																}	
 
 -- (Simple) Machines Page
-eletome.ai.nodes["elepower_machines:alloy_furnace"]      = {lb_top_img = "default_tin_ingot.png",
+eletome.ai.nodes["elepower_machines:alloy_furnace"]      = {lb_top_img = "elepower_iron_ingot.png^[multiply:#c1c1c1",
 															lb_top_tt ="2 Materials\nto be Alloyed", 
 															lb_btm_tt = " used per second",
 															}	

elepower_tools/armor.lua

@@ -1,95 +1,105 @@
 
-local materials = {iron = "elepower_dynamics:iron_ingot", carbon = "elepower_dynamics:carbon_sheet"}
+local materials = {}
 
--- Iron Armor
+if ele.external.armor.enable_iron_armor == true then
-armor:register_armor("elepower_tools:helmet_iron", {
+	materials.iron = "elepower_dynamics:iron_ingot"
-	description = "Iron Helmet",
-	inventory_image = "elepower_armor_inv_helmet.png",
-	texture = "elepower_armor_helmet.png",
-	preview = "elepower_armor_helmet_preview.png",
-	groups = {armor_head=1, armor_heal=0, armor_use=650,
-		physics_speed=-0.001, physics_gravity=0.001},
-	armor_groups = {fleshy=8},
-	damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
-})
 
-armor:register_armor("elepower_tools:chestplate_iron", {
+	-- Iron Armor
-	description = "Iron Chestplate",
+	armor:register_armor("elepower_tools:helmet_iron", {
-	inventory_image = "elepower_armor_inv_chestplate.png",
+		description = "Iron Helmet",
-	texture = "elepower_armor_chestplate.png",
+		inventory_image = "elepower_armor_inv_helmet.png",
-	preview = "elepower_armor_chestplate_preview.png",
+		texture = "elepower_armor_helmet.png",
-	groups = {armor_torso=1, armor_heal=0, armor_use=650,
+		preview = "elepower_armor_helmet_preview.png",
-		physics_speed=-0.03, physics_gravity=0.03},
+		groups = {armor_head=1, armor_heal=0, armor_use=650,
-	armor_groups = {fleshy=13},
+			physics_speed=-0.001, physics_gravity=0.001},
-	damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
+		armor_groups = {fleshy=8},
-})
+		damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
+	})
 
-armor:register_armor("elepower_tools:leggings_iron", {
+	armor:register_armor("elepower_tools:chestplate_iron", {
-	description = "Iron Leggings",
+		description = "Iron Chestplate",
-	inventory_image = "elepower_armor_inv_leggings.png",
+		inventory_image = "elepower_armor_inv_chestplate.png",
-	texture = "elepower_armor_leggings.png",
+		texture = "elepower_armor_chestplate.png",
-	preview = "elepower_armor_leggings_preview.png",
+		preview = "elepower_armor_chestplate_preview.png",
-	groups = {armor_legs=1, armor_heal=0, armor_use=650,
+		groups = {armor_torso=1, armor_heal=0, armor_use=650,
-		physics_speed=-0.02, physics_gravity=0.02},
+			physics_speed=-0.03, physics_gravity=0.03},
-	armor_groups = {fleshy=13},
+		armor_groups = {fleshy=13},
-	damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
+		damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
-})
+	})
 
-armor:register_armor("elepower_tools:boots_iron", {
+	armor:register_armor("elepower_tools:leggings_iron", {
-	description = "Iron Boots",
+		description = "Iron Leggings",
-	inventory_image = "elepower_armor_inv_boots.png",
+		inventory_image = "elepower_armor_inv_leggings.png",
-	texture = "elepower_armor_boots.png",
+		texture = "elepower_armor_leggings.png",
-	preview = "elepower_armor_boots_preview.png",
+		preview = "elepower_armor_leggings_preview.png",
-	groups = {armor_feet=1, armor_heal=0, armor_use=650,
+		groups = {armor_legs=1, armor_heal=0, armor_use=650,
-		physics_speed=-0.001, physics_gravity=0.001},
+			physics_speed=-0.02, physics_gravity=0.02},
-	armor_groups = {fleshy=8},
+		armor_groups = {fleshy=13},
-	damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
+		damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
-})
+	})
 
--- Carbon Fiber Armor
+	armor:register_armor("elepower_tools:boots_iron", {
-armor:register_armor("elepower_tools:helmet_carbon", {
+		description = "Iron Boots",
-	description = "Carbon Fiber Helmet",
+		inventory_image = "elepower_armor_inv_boots.png",
-	inventory_image = "elepower_armor_inv_helmet_carbon.png",
+		texture = "elepower_armor_boots.png",
-	texture = "elepower_armor_helmet_carbon.png",
+		preview = "elepower_armor_boots_preview.png",
-	preview = "elepower_armor_helmet_carbon_preview.png",
+		groups = {armor_feet=1, armor_heal=0, armor_use=650,
-	groups = {armor_head=1, armor_heal=0, armor_use=2000,
+			physics_speed=-0.001, physics_gravity=0.001},
-		physics_speed=0.01, physics_gravity=0.01},
+		armor_groups = {fleshy=8},
-	armor_groups = {fleshy=9},
+		damage_groups = {cracky=2, snappy=3, choppy=2, crumbly=1, level=2},
-	damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
+	})
-})
 
-armor:register_armor("elepower_tools:chestplate_carbon", {
+end
-	description = "Carbon Fiber Chestplate",
-	inventory_image = "elepower_armor_inv_chestplate_carbon.png",
-	texture = "elepower_armor_chestplate_carbon.png",
-	preview = "elepower_armor_chestplate_carbon_preview.png",
-	groups = {armor_torso=1, armor_heal=0, armor_use=2000,
-		physics_speed=0.03, physics_gravity=0.03},
-	armor_groups = {fleshy=14},
-	damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
-})
 
-armor:register_armor("elepower_tools:leggings_carbon", {
+if ele.external.armor.enable_carbon_fiber_armor == true then
-	description = "Carbon Fiber Leggings",
+	materials.carbon = "elepower_dynamics:carbon_sheet"
-	inventory_image = "elepower_armor_inv_leggings_carbon.png",
+	
-	texture = "elepower_armor_leggings_carbon.png",
+	-- Carbon Fiber Armor
-	preview = "elepower_armor_leggings_carbon_preview.png",
+	armor:register_armor("elepower_tools:helmet_carbon", {
-	groups = {armor_legs=1, armor_heal=0, armor_use=2000,
+		description = "Carbon Fiber Helmet",
-		physics_speed=0.02, physics_gravity=0.02},
+		inventory_image = "elepower_armor_inv_helmet_carbon.png",
-	armor_groups = {fleshy=14},
+		texture = "elepower_armor_helmet_carbon.png",
-	damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
+		preview = "elepower_armor_helmet_carbon_preview.png",
-})
+		groups = {armor_head=1, armor_heal=0, armor_use=2000,
+			physics_speed=0.01, physics_gravity=0.01},
+		armor_groups = {fleshy=9},
+		damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
+	})
 
-armor:register_armor("elepower_tools:boots_carbon", {
+	armor:register_armor("elepower_tools:chestplate_carbon", {
-	description = "Carbon Fiber Boots",
+		description = "Carbon Fiber Chestplate",
-	inventory_image = "elepower_armor_inv_boots_carbon.png",
+		inventory_image = "elepower_armor_inv_chestplate_carbon.png",
-	texture = "elepower_armor_boots_carbon.png",
+		texture = "elepower_armor_chestplate_carbon.png",
-	preview = "elepower_armor_boots_carbon_preview.png",
+		preview = "elepower_armor_chestplate_carbon_preview.png",
-	groups = {armor_feet=1, armor_heal=0, armor_use=2000,
+		groups = {armor_torso=1, armor_heal=0, armor_use=2000,
-		physics_speed=0.01, physics_gravity=0.01},
+			physics_speed=0.03, physics_gravity=0.03},
-	armor_groups = {fleshy=9},
+		armor_groups = {fleshy=14},
-	damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
+		damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
-})
+	})
+
+	armor:register_armor("elepower_tools:leggings_carbon", {
+		description = "Carbon Fiber Leggings",
+		inventory_image = "elepower_armor_inv_leggings_carbon.png",
+		texture = "elepower_armor_leggings_carbon.png",
+		preview = "elepower_armor_leggings_carbon_preview.png",
+		groups = {armor_legs=1, armor_heal=0, armor_use=2000,
+			physics_speed=0.02, physics_gravity=0.02},
+		armor_groups = {fleshy=14},
+		damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
+	})
+
+	armor:register_armor("elepower_tools:boots_carbon", {
+		description = "Carbon Fiber Boots",
+		inventory_image = "elepower_armor_inv_boots_carbon.png",
+		texture = "elepower_armor_boots_carbon.png",
+		preview = "elepower_armor_boots_carbon_preview.png",
+		groups = {armor_feet=1, armor_heal=0, armor_use=2000,
+			physics_speed=0.01, physics_gravity=0.01},
+		armor_groups = {fleshy=9},
+		damage_groups = {cracky=3, snappy=2, choppy=3, crumbly=2, level=1},
+	})
+
+end
 
 for k, v in pairs(materials) do
 	minetest.register_craft({
@@ -103,7 +113,7 @@ for k, v in pairs(materials) do
 	minetest.register_craft({
 		output = "elepower_tools:chestplate_"..k,
 		recipe = {
-			{v, "", v},
+			{v,"", v},
 			{v, v, v},
 			{v, v, v},
 		},
@@ -111,7 +121,7 @@ for k, v in pairs(materials) do
 	minetest.register_craft({
 		output = "elepower_tools:leggings_"..k,
 		recipe = {
-			{v, v, v},
+			{v, v , v},
 			{v, "", v},
 			{v, "", v},
 		},

elepower_tools/crafting.lua

@@ -1,18 +1,21 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
 
 -- Drill
 minetest.register_craft({
 	output = "elepower_tools:drill_bit",
 	recipe = {
-		{"", "default:steel_ingot", ""},
+		{""             ,epi.steel_ingot, ""            },
-		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{epi.steel_ingot,epi.steel_ingot,epi.steel_ingot}
 	}
 })
 
 minetest.register_craft({
 	output = "elepower_tools:hand_drill",
 	recipe = {
-		{"", "elepower_dynamics:wound_copper_coil", "elepower_tools:drill_bit"},
+		{""             , "elepower_dynamics:wound_copper_coil", "elepower_tools:drill_bit"},
-		{"default:steel_ingot", "elepower_dynamics:battery", "default:steel_ingot"},
+		{epi.steel_ingot, "elepower_dynamics:battery"          , epi.steel_ingot},
 		{"basic_materials:motor", "elepower_dynamics:capacitor", ""},
 	}
 })
@@ -21,9 +24,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_tools:chain",
 	recipe = {
-		{"", "default:steel_ingot", "default:steel_ingot"},
+		{""             , epi.steel_ingot                ,epi.steel_ingot},
-		{"default:steel_ingot", "elepower_dynamics:steel_plate", "default:steel_ingot"},
+		{epi.steel_ingot, "elepower_dynamics:steel_plate",epi.steel_ingot},
-		{"default:steel_ingot", "default:steel_ingot", ""},
+		{epi.steel_ingot, epi.steel_ingot                , ""            }
 	}
 })
 
@@ -31,7 +34,7 @@ minetest.register_craft({
 	output = "elepower_tools:chainsaw",
 	recipe = {
 		{"", "elepower_dynamics:wound_copper_coil", "elepower_tools:chain"},
-		{"default:steel_ingot", "elepower_dynamics:battery", "default:steel_ingot"},
+		{epi.steel_ingot, "elepower_dynamics:battery", epi.steel_ingot},
 		{"basic_materials:motor", "elepower_dynamics:capacitor", ""},
 	}
 })
@@ -40,7 +43,7 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_tools:soldering_iron",
 	recipe = {
-		{"", "elepower_dynamics:battery", "default:steel_ingot"},
+		{"", "elepower_dynamics:battery",epi.steel_ingot},
 		{"", "elepower_dynamics:wound_silver_coil", ""},
 		{"elepower_dynamics:wound_silver_coil", "", ""},
 	}
@@ -50,9 +53,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "elepower_tools:repair_core",
 	recipe = {
-		{"", "default:diamondblock", "elepower_dynamics:steel_plate"},
+		{""                             , epi.diamond_block, "elepower_dynamics:steel_plate"},
-		{"elepower_dynamics:lead_plate", "elepower_dynamics:xycrone_lump", "elepower_dynamics:lead_plate"},
+		{"elepower_dynamics:lead_plate" , "elepower_dynamics:xycrone_lump", "elepower_dynamics:lead_plate"},
-		{"elepower_dynamics:steel_plate", "default:mese", ""},
+		{"elepower_dynamics:steel_plate", epi.mese, ""},
 	}
 })
 

elepower_tools/ed_reconstructor.lua

@@ -1,9 +1,12 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
 
 local function get_formspec(power, state)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"list[context;tool;3.5,1.5;1,1;]"..
 		ele.formspec.state_switcher(7, 0, state)..
@@ -12,7 +15,7 @@ local function get_formspec(power, state)
 		"listring[current_player;main]"..
 		"listring[context;tool]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function is_tool (istack)

elepower_tools/soldering.lua

@@ -1,3 +1,6 @@
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
 
 local function upgrade_formspec (upgrades, desc)
 	local posY  = 0.5
@@ -15,15 +18,15 @@ local function upgrade_formspec (upgrades, desc)
 	end
 
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		"label[0,0;Modifying "..desc.."]"..
 		fspec..
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function set_component_list (pos, list)

elepower_wireless/crafting.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epi = ele.external.ing
+
 local easycrafting = minetest.settings:get("elepower_easy_crafting") == "true"
 local ingot = "elepower_dynamics:viridisium_ingot"
 if easycrafting then
@@ -10,7 +14,7 @@ minetest.register_craft({
 	output = "elepower_wireless:matter_receiver",
 	recipe = {
 		{"elepower_dynamics:wound_silver_coil", "elepower_dynamics:soc", "elepower_dynamics:wound_silver_coil"},
-		{"elepower_dynamics:electrum_gear", "default:steelblock", "elepower_dynamics:electrum_gear"},
+		{"elepower_dynamics:electrum_gear", epi.steel_block, "elepower_dynamics:electrum_gear"},
 		{"elepower_dynamics:xycrone_lump", ingot, "elepower_dynamics:xycrone_lump"},
 	}
 })
@@ -20,7 +24,7 @@ minetest.register_craft({
 	output = "elepower_wireless:matter_transmitter",
 	recipe = {
 		{"elepower_dynamics:wound_silver_coil", "elepower_dynamics:soc", "elepower_dynamics:wound_silver_coil"},
-		{"elepower_dynamics:xycrone_lump", "default:steelblock", "elepower_dynamics:xycrone_lump"},
+		{"elepower_dynamics:xycrone_lump", epi.steel_block, "elepower_dynamics:xycrone_lump"},
 		{"elepower_dynamics:electrum_gear", ingot, "elepower_dynamics:electrum_gear"},
 	}
 })
@@ -30,7 +34,7 @@ minetest.register_craft({
 	output = "elepower_wireless:dialler",
 	recipe = {
 		{"elepower_dynamics:wound_silver_coil", "elepower_dynamics:soc", "elepower_dynamics:wound_silver_coil"},
-		{"elepower_dynamics:wound_copper_coil", "default:steelblock", "elepower_dynamics:wound_copper_coil"},
+		{"elepower_dynamics:wound_copper_coil", epi.steel_block, "elepower_dynamics:wound_copper_coil"},
 		{"elepower_dynamics:electrum_gear", "elepower_dynamics:lcd_panel", "elepower_dynamics:electrum_gear"},
 	}
 })

elepower_wireless/machines/dialler.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local function escape_comma(str)
 	return str:gsub(",","\\,")
 end
@@ -36,9 +40,9 @@ local function get_formspec(power, player, transmitters, receivers)
 	if re_selct then re_spc = ";" .. re_selct end
 
 	return "size[8,10.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"textlist[1,0;6.8,2.5;transmitter;" .. table.concat(list_tr, ",") .. tr_spc .. "]"..
 		"textlist[1,3;6.8,2.5;receiver;" .. table.concat(list_re, ",") .. re_spc .. "]"..
@@ -47,7 +51,7 @@ local function get_formspec(power, player, transmitters, receivers)
 		"list[current_player;main;0,6.25;8,1;]"..
 		"list[current_player;main;0,7.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 6.25)
+		epr.get_hotbar_bg(0, 6.25)
 end
 
 local function get_is_active_node(meta, pos)

elepower_wireless/machines/matter_receiver.lua

@@ -1,11 +1,15 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 elewi.loaded_receivers = {}
 
 local function get_formspec(power, name, player)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		depr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"field[1.5,0.5;5,1;name;Receiver Name;".. name .."]"..
 		"field_close_on_enter[name;false]"..
@@ -13,7 +17,7 @@ local function get_formspec(power, name, player)
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function matter_receiver_timer(pos)

elepower_wireless/machines/matter_transmitter.lua

@@ -1,11 +1,15 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 elewi.loaded_transmitters = {}
 
 local function get_formspec(power, name, player)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"field[1.5,0.5;5,1;name;Transmitter Name;".. name .."]"..
 		"field_close_on_enter[name;false]"..
@@ -13,7 +17,7 @@ local function get_formspec(power, name, player)
 		"list[current_player;main;0,4.25;8,1;]"..
 		"list[current_player;main;0,5.5;8,3;8]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function matter_transmitter_timer(pos)

elepower_wireless/machines/station.lua

@@ -1,3 +1,8 @@
+
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 elewi.node_handlers = {}
 local desc_cache = {}
 
@@ -30,9 +35,9 @@ end
 
 local function get_formspec(power)
 	return "size[8,8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"list[context;card;3.5,1;1,1;]"..
 		"list[current_player;main;0,4.25;8,1;]"..
@@ -40,7 +45,7 @@ local function get_formspec(power)
 		"listring[current_player;main]"..
 		"listring[context;card]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(0, 4.25)
+		epr.get_hotbar_bg(0, 4.25)
 end
 
 local function data_from_card(card)

elepower_wireless/machines/station/fission_reactor.lua

@@ -1,4 +1,8 @@
 
+-- see elepower_papi >> external_nodes_items.lua for explanation
+-- shorten table ref
+local epr = ele.external.ref
+
 local myname = "elepower_nuclear:fission_controller"
 
 local function check(pos)
@@ -115,9 +119,9 @@ local function get_formspec(pos, power, station, station_meta)
 
 	local centered = (width - 8) / 2
 	return "size["..width..",8.5]"..
-		default.gui_bg..
+		epr.gui_bg..
-		default.gui_bg_img..
+		epr.gui_bg_img..
-		default.gui_slots..
+		epr.gui_slots..
 		ele.formspec.power_meter(power)..
 		"list[current_player;main;"..centered..",4.25;8,1;]"..
 		"list[current_player;main;"..centered..",5.5;8,3;8]"..
@@ -125,7 +129,7 @@ local function get_formspec(pos, power, station, station_meta)
 		"listring[current_player;main]"..
 		"listring[context;card]"..
 		"listring[current_player;main]"..
-		default.get_hotbar_bg(centered, 4.25)
+		epr.get_hotbar_bg(centered, 4.25)
 end
 
 local function on_receive_fields(pos, fields, sender, station, station_meta)