move default mod to opt-depends and use screwdriver only if available

chest.lua

@@ -43,7 +43,7 @@ minetest.register_node("scifi_nodes:crate", {
 	groups = {cracky = 1, oddly_breakable_by_hand = 2, fuel = 8},
 	legacy_facedir_simple = true,
 	is_ground_content = false,
-	sounds = default.node_sound_wood_defaults(),
+	sounds = scifi_nodes.node_sound_wood_defaults(),
 
 	after_dig_node = drop_chest_stuff(),
 	on_construct = function(pos)
@@ -82,7 +82,7 @@ minetest.register_node("scifi_nodes:box", {
 	groups = {cracky = 1},
 	legacy_facedir_simple = true,
 	is_ground_content = false,
-	sounds = default.node_sound_metal_defaults(),
+	sounds = scifi_nodes.node_sound_metal_defaults(),
 
 	after_dig_node = drop_chest_stuff(),
 	on_construct = function(pos)

crafts.lua

@@ -1,14 +1,24 @@
 -- CRAFTING RECIPES FOR SCIFI NODES
 
--- 6 basic plastic from 9 homedecor plastic sheet
-minetest.register_craft({
-	output = "scifi_nodes:white2 6",
-	recipe = {
-		{"homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting"},
-		{"homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting"},
-		{"homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting"}
-	}
-})
+if minetest.get_modpath("basic_materials") then
+    -- 6 basic plastic from 9 homedecor plastic sheet
+    minetest.register_craft({
+        output = "scifi_nodes:white2 6",
+        recipe = {
+            {"homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting"},
+            {"homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting"},
+            {"homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting"}
+        }
+    })
+end
+
+if not minetest.get_modpath("default") or not minetest.get_modpath("dye") then
+    -- the default and dye mod are required for most of the recipes
+    -- if either of them is missing (because we are not in the default game)
+    -- then just skip the recipes entirely
+    -- TODO: potentially switch recipes depending on current game
+    return
+end
 
 minetest.register_craft({
 	output = "scifi_nodes:super_white",
@@ -1099,6 +1109,22 @@ minetest.register_craft({
     }
 })
 
+-- wet metal plant pot from dry metal plant pot
+minetest.register_craft({
+    output = "scifi_nodes:pot2",
+    recipe = {
+        {"scifi_nodes:pot", "bucket:bucket_water"}
+    },
+    replacements = {{"bucket:bucket_water", "bucket:bucket_empty"}}
+})
+
+-- dry metal plant pot from wet metal plant pot
+minetest.register_craft({
+	type = "cooking",
+	output = "scifi_nodes:pot",
+	recipe = "scifi_nodes:pot2",
+})
+
 -- 6 itemholder from 2 dented metal block and 1 plastic
 minetest.register_craft({
     output = "scifi_nodes:itemholder 6",

digicode.lua

@@ -122,14 +122,14 @@ minetest.register_node("scifi_nodes:digicode_on", {
 	paramtype2 = "wallmounted",
 	light_source = 5,
 	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
-	drop = {items = {"scifi_nodes:digicode_off"}},
+	drop = "scifi_nodes:digicode_off",
 	mesecons = {
 		receptor = {
 			state = (has_mesecons and mesecon.state.on)
 		}
 	},
 	on_timer = toggle_digicode,
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:digicode_off", {
@@ -152,7 +152,7 @@ minetest.register_node("scifi_nodes:digicode_off", {
 	},
 	after_place_node = set_owner,
 	on_rightclick = show_digicode_formspec,
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_craft({

init.lua

@@ -4,13 +4,22 @@ scifi_nodes = {}
 
 local MP = minetest.get_modpath("scifi_nodes")
 
+
+dofile(MP.."/sounds.lua")
+
 if minetest.get_modpath("xpanes") then
 	dofile(MP.."/panes.lua")
 end
 
 dofile(MP.."/common.lua")
-dofile(MP.."/builder.lua")
-dofile(MP.."/chest.lua")
+
+if minetest.get_modpath("default") then
+	-- only load builder and chest if the default mod is available
+	-- the formspecs depend on it
+	dofile(MP.."/builder.lua")
+	dofile(MP.."/chest.lua")
+end
+
 dofile(MP.."/plants.lua")
 dofile(MP.."/nodes.lua")
 dofile(MP.."/doors.lua")

mod.conf

@@ -1,4 +1,15 @@
 name = scifi_nodes
 description = Minetest mod that adds scifi themed blocks, doors, materials, plants and other assets.
-depends = default,dye
-optional_depends = xpanes,mesecons,moreblocks,mesecons_microcontroller,mesecons_button,mesecons_torch,mesecons_receiver,basic_materials,unifieddyes
+optional_depends = """
+default,
+xpanes,
+mesecons,
+moreblocks,
+mesecons_microcontroller,
+mesecons_button,
+mesecons_torch,
+mesecons_receiver,
+basic_materials,
+dye
+unifieddyes
+"""

models.lua

@@ -39,7 +39,7 @@ end
 -- register some blocks in stairsplus if available (part of moreblocks)
 scifi_nodes.register_slope("white2", "Plastic", {"scifi_nodes_white2.png",}, 0)
 scifi_nodes.register_slope("super_white", "Super Plastic", {"scifi_nodes_super_white.png",}, 11)
-scifi_nodes.register_slope("ultra_white", "Super Plastic", {"scifi_nodes_ultra_white.png",}, default.LIGHT_MAX)
+scifi_nodes.register_slope("ultra_white", "Super Plastic", {"scifi_nodes_ultra_white.png",}, minetest.LIGHT_MAX)
 scifi_nodes.register_slope("black", "Black", {"scifi_nodes_black.png",}, 0)
 scifi_nodes.register_slope("white", "White", {"scifi_nodes_white.png",}, 0)
 scifi_nodes.register_slope("grey", "Grey", {"scifi_nodes_grey.png",}, 0)
@@ -54,8 +54,8 @@ scifi_nodes.register_slope("holes", "Holes", {"scifi_nodes_holes.png",}, 0)
 scifi_nodes.register_slope("pipe", "Pipe", {"scifi_nodes_pipe.png",}, 0)
 scifi_nodes.register_slope("stripes", "Stripes", {"scifi_nodes_stripes.png",}, 0)
 scifi_nodes.register_slope("screen", "Screen", {"scifi_nodes_screen3.png",}, 5)
-scifi_nodes.register_slope("lightstripe", "Lightstripe", {"scifi_nodes_lightstripe.png",}, default.LIGHT_MAX)
-scifi_nodes.register_slope("blight2", "Blue Light 2", {"scifi_nodes_capsule3.png",}, default.LIGHT_MAX)
+scifi_nodes.register_slope("lightstripe", "Lightstripe", {"scifi_nodes_lightstripe.png",}, minetest.LIGHT_MAX)
+scifi_nodes.register_slope("blight2", "Blue Light 2", {"scifi_nodes_capsule3.png",}, minetest.LIGHT_MAX)
 scifi_nodes.register_slope("wallpipe", "Alien Pipe", {"scifi_nodes_wallpipe.png",}, 0)
 scifi_nodes.register_slope("alien", "Alien Wall", {"scifi_nodes_alnslp.png",}, 0)
 scifi_nodes.register_slope("purple", "Purple", {"scifi_nodes_purple.png",}, 0)
@@ -74,7 +74,7 @@ node.types = {
 	{"holes",       "metal with holes"},
 	{"white2",      "plastic",},
 	{"super_white",      "Super Plastic", 11},
-	{"ultra_white",      "Ultra Plastic", default.LIGHT_MAX},
+	{"ultra_white",      "Ultra Plastic", minetest.LIGHT_MAX},
 --	{"engine",      "engine",          "engine"},
 	{"wall",      "metal wall"},
 	{"white",      "plastic wall"},
@@ -139,10 +139,10 @@ node.types = {
 --	{"monitorwall",      "Wall monitors",       "monitorwall"},
 	{"screen3",      "Wall monitor"},
 	{"doomlight",      "Doom light",       12},
-	{"bluwllight",      "Blue wall light", default.LIGHT_MAX},
+	{"bluwllight",      "Blue wall light", minetest.LIGHT_MAX},
 	{"bluegrid",      "Blue Grid", 5},
 	{"fan",      "Fan"},
-	{"ppllght",      "Purple wall light", default.LIGHT_MAX},
+	{"ppllght",      "Purple wall light", minetest.LIGHT_MAX},
 	{"pplwll",      "Purple wall"},
 	{"pplwll2",      "Purple wall2"},
 	{"pplwll3",      "Purple wall3"},

nodeboxes.lua

@@ -32,7 +32,7 @@ minetest.register_node("scifi_nodes:alienslope", {
 			{-0.125, 0.375, -0.5, 0.5, 0.5, 0.5}, -- NodeBox17
 		}
 	},
-	sounds = default.node_sound_wood_defaults(),
+	sounds = scifi_nodes.node_sound_wood_defaults(),
 	on_place = minetest.rotate_node
 })
 
@@ -62,7 +62,7 @@ minetest.register_node("scifi_nodes:wallpipe", {
 			{-0.5, -0.125, 0, 0.5, 0, 0.0625}, -- NodeBox24
 		}
 	},
-	sounds = default.node_sound_wood_defaults()
+	sounds = scifi_nodes.node_sound_wood_defaults()
 })
 
 minetest.register_node("scifi_nodes:plant_trap", {
@@ -91,7 +91,7 @@ minetest.register_node("scifi_nodes:plant_trap", {
 			{-0.0625, -0.5, 0.3125, 0, 0.5, 0.375}, -- NodeBox28
 		}
 	},
-	sounds = default.node_sound_wood_defaults(),
+	sounds = scifi_nodes.node_sound_wood_defaults(),
 })
 
 minetest.register_node("scifi_nodes:egg", {
@@ -122,7 +122,7 @@ minetest.register_node("scifi_nodes:egg", {
 			{-0.125, 0.75, -0.125, 0.125, 0.8125, 0.125}, -- NodeBox8
 			{-0.375, -0.3125, -0.4375, 0.375, 0.3125, 0.4375}, -- NodeBox9
 		},
-	sounds = default.node_sound_wood_defaults()
+	sounds = scifi_nodes.node_sound_wood_defaults()
 	}
 })
 
@@ -264,7 +264,7 @@ minetest.register_node("scifi_nodes:pad", {
 			{-0.875, -0.5, -0.8125, 0.8125, -0.375, 0.8125}, -- NodeBox3
 			{-0.8125, -0.5, -0.75, 0.75, -0.3125, 0.75}, -- NodeBox4
 		},
-	sounds = default.node_sound_wood_defaults()
+	sounds = scifi_nodes.node_sound_wood_defaults()
 	}
 })
 
@@ -283,7 +283,7 @@ minetest.register_node("scifi_nodes:pplwndw", {
 	paramtype2 = "facedir",
 	use_texture_alpha = "blend",
 	groups = {cracky=3},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	node_box = {
 		type = "fixed",
 		fixed = {
@@ -304,7 +304,7 @@ minetest.register_node("scifi_nodes:gloshroom", {
 	},
 	drawtype = "nodebox",
 	paramtype = "light",
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	walkable = false,
 	buildable_to = true,
 	sunlight_propagates = false,
@@ -324,13 +324,8 @@ minetest.register_node("scifi_nodes:gloshroom", {
 })
 
 minetest.register_node("scifi_nodes:pot_lid", {
-	description = "plant pot lid(place above plant)",
+	description = "Plant Pot Lid",
 	tiles = {
-		"scifi_nodes_glass2.png",
-		"scifi_nodes_glass2.png",
-		"scifi_nodes_glass2.png",
-		"scifi_nodes_glass2.png",
-		"scifi_nodes_glass2.png",
 		"scifi_nodes_glass2.png"
 	},
 	inventory_image = "scifi_nodes_pod_inv.png",
@@ -338,36 +333,55 @@ minetest.register_node("scifi_nodes:pot_lid", {
 	use_texture_alpha = "blend",
 	drawtype = "nodebox",
 	paramtype = "light",
-	groups = {cracky=1, not_in_creative_inventory=1},
+	groups = {not_in_creative_inventory = 1},
 	sunlight_propagates = true,
+	diggable = false,
+	drop = "",
 	selection_box = {
 		type = "fixed",
-		fixed = {0, 0, 0, 0, 0, 0}
-	},
-	collision_box = {
-		type = "fixed",
-		fixed = {-0.5, -1.5, -0.5, 0.5, -0.5, 0.5}
+		fixed = {-0.5, -1.5, -0.5, 0.5, -0.25, 0.5}
 	},
 	node_box = {
 		type = "fixed",
 		fixed = {
-			{-0.1875, -0.5625, -0.1875, 0.1875, -0.5, 0.1875}, -- NodeBox13
-			{-0.25, -0.625, -0.25, 0.25, -0.5625, 0.25}, -- NodeBox14
-			{-0.3125, -0.6875, -0.3125, 0.3125, -0.625, 0.3125}, -- NodeBox15
-			{-0.375, -0.75, -0.375, 0.375, -0.6875, 0.375}, -- NodeBox16
-			{-0.4375, -0.75, 0.375, 0.4375, -1.5, 0.4375}, -- NodeBox17
-			{-0.4375, -0.75, -0.4375, 0.4375, -1.5, -0.375}, -- NodeBox18
-			{0.375, -0.75, -0.4375, 0.4375, -1.5, 0.4375}, -- NodeBox19
-			{-0.4375, -0.75, -0.4375, -0.375, -1.5, 0.4375}, -- NodeBox20
+			{-0.4375, -1.5, -0.4375, 0.4375, -0.5, -0.375},
+			{-0.4375, -1.5, 0.375, 0.4375, -0.5, 0.4375},
+			{-0.4375, -1.5, -0.375, -0.375, -0.5, 0.375},
+			{0.375, -1.5, -0.375, 0.4375, -0.5, 0.375},
+			{-0.375, -0.5, -0.375, 0.375, -0.4375, 0.375},
+			{-0.3125, -0.4375, -0.3125, 0.3125, -0.375, 0.3125},
+			{-0.25, -0.375, -0.25, 0.25, -0.3125, 0.25},
+			{-0.1875, -0.3125, -0.1875, 0.1875, -0.25, 0.1875}
 		}
 	},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
+local function toggle_lid(pos, node, player, itemstack)
+	if not player or minetest.is_protected(pos, player:get_player_name()) then
+		return
+	end
+	local lid_pos = {x = pos.x, y = pos.y+2 , z = pos.z}
+	local lid_node = minetest.get_node(lid_pos)
+	if lid_node.name == "scifi_nodes:pot_lid" then
+		minetest.set_node(lid_pos, {name = "air"})
+	elseif lid_node.name == "air" then
+		minetest.set_node(lid_pos, {name = "scifi_nodes:pot_lid"})
+	end
+end
+
+local function remove_lid(pos)
+	local lid_pos = {x = pos.x, y = pos.y+2 , z = pos.z}
+	local lid_node = minetest.get_node(lid_pos)
+	if lid_node.name == "scifi_nodes:pot_lid" then
+		minetest.set_node(lid_pos, {name = "air"})
+	end
+end
+
 minetest.register_node("scifi_nodes:pot", {
-	description = "metal plant pot (right click for lid, shift+rightclick to plant)",
+	description = "Metal Plant Pot (right-click for lid, sneak + right-click to plant)",
 	tiles = {
-		"scifi_nodes_pot.png",
+		"default_dirt.png^scifi_nodes_pot.png",
 		"scifi_nodes_greybolts.png",
 		"scifi_nodes_greybolts.png",
 		"scifi_nodes_greybolts.png",
@@ -376,34 +390,30 @@ minetest.register_node("scifi_nodes:pot", {
 	},
 	drawtype = "nodebox",
 	paramtype = "light",
-	groups = {cracky=1, soil=1, sand=1},
+	groups = {cracky = 1, soil = 1, sand = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5}
+	},
 	node_box = {
 		type = "fixed",
 		fixed = {
-			{-0.5, -0.25, -0.5, 0.5, 0.5, 0.5}, -- NodeBox1
-			{0.1875, -0.5, 0.1875, 0.5, -0.25, 0.5}, -- NodeBox2
-			{-0.5, -0.5, -0.5, -0.1875, -0.25, -0.1875}, -- NodeBox3
-			{-0.5, -0.5, 0.1875, -0.1875, -0.25, 0.5}, -- NodeBox4
-			{0.1875, -0.5, -0.5, 0.5, -0.25, -0.1875}, -- NodeBox5
+			{-0.5, -0.25, -0.5, 0.5, 0.5, 0.5},
+			{0.1875, -0.5, 0.1875, 0.5, -0.25, 0.5},
+			{-0.5, -0.5, -0.5, -0.1875, -0.25, -0.1875},
+			{-0.5, -0.5, 0.1875, -0.1875, -0.25, 0.5},
+			{0.1875, -0.5, -0.5, 0.5, -0.25, -0.1875}
 		}
 	},
-	on_rightclick = function(pos, node, clicker, item, _)
-		local lid_node = minetest.get_node({x=pos.x, y=pos.y+2, z=pos.z})
-		if lid_node.name == "scifi_nodes:pot_lid" then
-			minetest.set_node({x=pos.x, y=pos.y+2, z=pos.z}, {name="air", param2=lid_node.param2})
-		elseif lid_node.name ~= "scifi_nodes:pot_lid" and node.name == "air" then
-			minetest.set_node({x=pos.x, y=pos.y+2, z=pos.z}, {name="scifi_nodes:pot_lid", param2=lid_node.param2})
-		end
-	end,
-	on_destruct = function(pos, node, _)
-		minetest.remove_node({x=pos.x, y=pos.y+2, z=pos.z})
-	end
+	on_rightclick = toggle_lid,
+	on_destruct = remove_lid,
+	sounds = scifi_nodes.node_sound_metal_defaults(),
 })
 
 minetest.register_node("scifi_nodes:pot2", {
-	description = "metal wet plant pot(right click for lid, shift+rightclick to plant)",
+	description = "Metal Plant Pot Wet (right-click for lid, sneak + right-click to plant)",
 	tiles = {
-		"scifi_nodes_pot.png^[colorize:black:100",
+		"default_dirt.png^scifi_nodes_pot2.png",
 		"scifi_nodes_greybolts.png",
 		"scifi_nodes_greybolts.png",
 		"scifi_nodes_greybolts.png",
@@ -412,28 +422,24 @@ minetest.register_node("scifi_nodes:pot2", {
 	},
 	drawtype = "nodebox",
 	paramtype = "light",
-	groups = {cracky=1, soil=3, wet=1},
+	groups = {cracky = 1, soil = 3, wet = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5}
+	},
 	node_box = {
 		type = "fixed",
 		fixed = {
-			{-0.5, -0.25, -0.5, 0.5, 0.5, 0.5}, -- NodeBox1
-			{0.1875, -0.5, 0.1875, 0.5, -0.25, 0.5}, -- NodeBox2
-			{-0.5, -0.5, -0.5, -0.1875, -0.25, -0.1875}, -- NodeBox3
-			{-0.5, -0.5, 0.1875, -0.1875, -0.25, 0.5}, -- NodeBox4
-			{0.1875, -0.5, -0.5, 0.5, -0.25, -0.1875}, -- NodeBox5
+			{-0.5, -0.25, -0.5, 0.5, 0.5, 0.5},
+			{0.1875, -0.5, 0.1875, 0.5, -0.25, 0.5},
+			{-0.5, -0.5, -0.5, -0.1875, -0.25, -0.1875},
+			{-0.5, -0.5, 0.1875, -0.1875, -0.25, 0.5},
+			{0.1875, -0.5, -0.5, 0.5, -0.25, -0.1875}
 		}
 	},
-	on_rightclick = function(pos, node, clicker, item, _)
-		local lid_node = minetest.get_node({x=pos.x, y=pos.y+2, z=pos.z})
-		if lid_node.name == "scifi_nodes:pot_lid" then
-			minetest.set_node({x=pos.x, y=pos.y+2, z=pos.z}, {name="air", param2=lid_node.param2})
-		elseif lid_node.name ~= "scifi_nodes:pot_lid" and node.name == "air" then
-			minetest.set_node({x=pos.x, y=pos.y+2, z=pos.z}, {name="scifi_nodes:pot_lid", param2=lid_node.param2})
-		end
-	end,
-	on_destruct = function(pos, node, _)
-		minetest.remove_node({x=pos.x, y=pos.y+2, z=pos.z})
-	end
+	on_rightclick = toggle_lid,
+	on_destruct = remove_lid,
+	sounds = scifi_nodes.node_sound_metal_defaults(),
 })
 
 minetest.register_node("scifi_nodes:lightbar", {
@@ -445,7 +451,7 @@ minetest.register_node("scifi_nodes:lightbar", {
 	paramtype = "light",
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	node_box = {
 		type = "fixed",
 		fixed = {
@@ -459,7 +465,7 @@ minetest.register_node("scifi_nodes:lightbar", {
 		}
 	},
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:light_dynamic", {
@@ -482,9 +488,9 @@ minetest.register_node("scifi_nodes:light_dynamic", {
 		}
 	},
 	paramtype2 = "wallmounted",
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	groups = {cracky=1, oddly_breakable_by_hand=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:ladder", {
@@ -514,7 +520,7 @@ minetest.register_node("scifi_nodes:ladder", {
 			{0.3125, -0.5, 0.0625, 0.4375, -0.375, 0.1875}, -- NodeBox25
 			{0.3125, -0.5, -0.1875, 0.4375, -0.375, -0.0625}, -- NodeBox26
 		},
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 	},
 	paramtype2 = "wallmounted",
 	walkable = false,
@@ -530,7 +536,7 @@ minetest.register_node("scifi_nodes:lightbars", {
 	drawtype = "nodebox",
 	paramtype = "light",
 	use_texture_alpha = "blend",
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	node_box = {
 		type = "fixed",
 		fixed = {
@@ -541,7 +547,7 @@ minetest.register_node("scifi_nodes:lightbars", {
 		}
 	},
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:liquid_pipe", {
@@ -551,7 +557,7 @@ tiles = {{
 		animation = {type = "vertical_frames", aspect_w = 16, aspect_h = 16, length = 1.00},
 	}},
 	use_texture_alpha = "blend",
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	drawtype = "nodebox",
 	sunlight_propagates = true,
 	paramtype = "light",
@@ -562,7 +568,7 @@ tiles = {{
 		}
 	},
 	groups = {cracky=1, oddly_breakable_by_hand=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:liquid_pipe2", {
@@ -571,7 +577,7 @@ tiles = {
 		"scifi_nodes_orange.png",
 	},
 	use_texture_alpha = "blend",
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	drawtype = "nodebox",
 	sunlight_propagates = true,
 	paramtype = "light",
@@ -582,7 +588,7 @@ tiles = {
 		}
 	},
 	groups = {cracky=1, oddly_breakable_by_hand=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:powered_stand", {
@@ -649,7 +655,7 @@ minetest.register_node("scifi_nodes:cover", {
 			{-0.3125, -0.375, -0.3125, 0.3125, -0.3125, 0.3125}, -- NodeBox6
 		}
 	},
-	sounds = default.node_sound_wood_defaults(),
+	sounds = scifi_nodes.node_sound_wood_defaults(),
 	groups = {cracky=1, oddly_breakable_by_hand=1}
 })
 
@@ -754,7 +760,7 @@ minetest.register_node("scifi_nodes:table", {
 			{-0.0625, 0.25, -0.125, 0.0625, 0.4375, -0.0625}, -- NodeBox7
 		}
 	},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = scifi_nodes.node_sound_metal_defaults(),
 	groups = {cracky=1}
 })
 
@@ -870,7 +876,7 @@ minetest.register_node("scifi_nodes:windowcorner", {
 	},
 	groups = {cracky=1},
 	on_place = minetest.rotate_node,
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:windowstraight", {
@@ -897,7 +903,7 @@ minetest.register_node("scifi_nodes:windowstraight", {
 	},
 	groups = {cracky=1},
 	on_place = minetest.rotate_node,
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:windowcorner2", {
@@ -928,7 +934,7 @@ minetest.register_node("scifi_nodes:windowcorner2", {
 	},
 	groups = {cracky=1},
 	on_place = minetest.rotate_node,
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:windowstraight2", {
@@ -955,7 +961,7 @@ minetest.register_node("scifi_nodes:windowstraight2", {
 	},
 	groups = {cracky=1},
 	on_place = minetest.rotate_node,
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 
@@ -984,7 +990,7 @@ minetest.register_node("scifi_nodes:capsule", {
 		}
 	},
 	groups = {cracky=1, oddly_breakable_by_hand=1},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_rightclick = function(pos, node, clicker, item, _)
 			minetest.set_node(pos, {name="scifi_nodes:capsule2", param2=node.param2})
 	end,
@@ -1014,7 +1020,7 @@ minetest.register_node("scifi_nodes:capsule3", {
 		}
 	},
 	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_rightclick = function(pos, node, clicker, item, _)
 			minetest.set_node(pos, {name="scifi_nodes:capsule", param2=node.param2})
 	end,
@@ -1044,7 +1050,7 @@ minetest.register_node("scifi_nodes:capsule2", {
 		}
 	},
 	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_rightclick = function(pos, node, clicker, item, _)
 			minetest.set_node(pos, {name="scifi_nodes:capsule3", param2=node.param2})
 	end,
@@ -1074,7 +1080,7 @@ minetest.register_node("scifi_nodes:itemholder", {
 		}
 	},
 	groups = {cracky=1},
-	on_rotate = screwdriver.disallow,
+	on_rotate = minetest.get_modpath("screwdriver") and screwdriver.disallow,
 	after_place_node = function(pos, placer, itemstack)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("owner",placer:get_player_name())
@@ -1122,7 +1128,7 @@ minetest.register_node("scifi_nodes:glassscreen", {
 	drawtype = "nodebox",
 	paramtype = "light",
 	paramtype2 = "facedir",
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	sunlight_propagates = true,
 	node_box = {
 		type = "fixed",
@@ -1132,7 +1138,7 @@ minetest.register_node("scifi_nodes:glassscreen", {
 		}
 	},
 	groups = {cracky=1, oddly_breakable_by_hand=1},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 
@@ -1215,5 +1221,5 @@ minetest.register_node("scifi_nodes:windowpanel", {
     },
     groups = {cracky=1},
     on_place = minetest.rotate_node,
-    sounds = default.node_sound_glass_defaults(),
+    sounds = scifi_nodes.node_sound_glass_defaults(),
 })

nodes.lua

@@ -35,7 +35,7 @@ minetest.register_node("scifi_nodes:rfloor", {
 	paramtype2 = "facedir",
 	light_source = 10,
 	groups = {cracky=1},
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:bfloor", {
@@ -47,7 +47,7 @@ minetest.register_node("scifi_nodes:bfloor", {
 	paramtype2 = "facedir",
 	light_source = 10,
 	groups = {cracky=1},
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 })
 
 
@@ -64,7 +64,7 @@ minetest.register_node("scifi_nodes:stripes2", {
 	},
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:gblock", {
@@ -80,7 +80,7 @@ minetest.register_node("scifi_nodes:gblock", {
 	},
 	paramtype = "light",
 	groups = {cracky=1};
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:gblock2", {
@@ -97,7 +97,7 @@ minetest.register_node("scifi_nodes:gblock2", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:gblock3", {
@@ -114,7 +114,7 @@ minetest.register_node("scifi_nodes:gblock3", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 })
 
 
@@ -133,7 +133,7 @@ minetest.register_node("scifi_nodes:green_light", {
 	light_source = 10,
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:red_light", {
@@ -150,7 +150,7 @@ minetest.register_node("scifi_nodes:red_light", {
 	light_source = 10,
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:discs", {
@@ -166,7 +166,7 @@ minetest.register_node("scifi_nodes:discs", {
 	},
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:disc", {
@@ -196,7 +196,7 @@ minetest.register_node("scifi_nodes:greenbar_animated", {
 	paramtype2 = "facedir",
 	groups = {cracky=1},
 	light_source = 10,
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_place = minetest.rotate_node
 })
 
@@ -210,7 +210,7 @@ minetest.register_node("scifi_nodes:blink", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 5,
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:black_lights", {
@@ -222,7 +222,7 @@ minetest.register_node("scifi_nodes:black_lights", {
 	}},
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:black_screen", {
@@ -235,7 +235,7 @@ minetest.register_node("scifi_nodes:black_screen", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 1,
-	sounds = default.node_sound_stone_defaults()
+	sounds = scifi_nodes.node_sound_stone_defaults()
 })
 
 minetest.register_node("scifi_nodes:screen", {
@@ -248,7 +248,7 @@ minetest.register_node("scifi_nodes:screen", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 5,
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:screen2", {
@@ -261,7 +261,7 @@ minetest.register_node("scifi_nodes:screen2", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 5,
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 
@@ -280,7 +280,7 @@ minetest.register_node("scifi_nodes:white_pad", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:white_base", {
@@ -297,7 +297,7 @@ minetest.register_node("scifi_nodes:white_base", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:grnpipe", {
@@ -314,7 +314,7 @@ minetest.register_node("scifi_nodes:grnpipe", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = scifi_nodes.node_sound_metal_defaults(),
 	on_place = minetest.rotate_node
 })
 
@@ -333,7 +333,7 @@ minetest.register_node("scifi_nodes:grnpipe2", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = scifi_nodes.node_sound_metal_defaults(),
 	on_place = minetest.rotate_node
 })
 
@@ -349,7 +349,7 @@ minetest.register_node("scifi_nodes:octrng", {
 	use_texture_alpha = "blend",
 	light_source = 10,
 	groups = {cracky=2},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:octgrn", {
@@ -364,7 +364,7 @@ minetest.register_node("scifi_nodes:octgrn", {
 	use_texture_alpha = "blend",
 	light_source = 10,
 	groups = {cracky=2},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:octbl", {
@@ -379,7 +379,7 @@ minetest.register_node("scifi_nodes:octbl", {
 	use_texture_alpha = "blend",
 	light_source = 10,
 	groups = {cracky=2},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:octppl", {
@@ -394,7 +394,7 @@ minetest.register_node("scifi_nodes:octppl", {
 	use_texture_alpha = "blend",
 	light_source = 10,
 	groups = {cracky=2},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:tower", {
@@ -409,7 +409,7 @@ minetest.register_node("scifi_nodes:tower", {
 	inventory_image = "scifi_nodes_tower.png",
 	paramtype = "light",
 	groups = {cracky=2},
-	sounds = default.node_sound_metal_defaults()
+	sounds = scifi_nodes.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:junk", {
@@ -444,7 +444,7 @@ minetest.register_node("scifi_nodes:blumetlight", {
 	light_source = 10,
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 
@@ -454,10 +454,10 @@ minetest.register_node("scifi_nodes:lightstp", {
 	tiles = {
 		"scifi_nodes_lightstripe.png"
 	},
-	light_source = default.LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:blklt2", {
@@ -469,7 +469,7 @@ minetest.register_node("scifi_nodes:blklt2", {
 	light_source = 10,
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:blumetstr", {
@@ -481,7 +481,7 @@ minetest.register_node("scifi_nodes:blumetstr", {
 	light_source = 10,
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:glass", {
@@ -494,7 +494,7 @@ minetest.register_node("scifi_nodes:glass", {
 	use_texture_alpha = "blend",
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:whtlightbnd", {
@@ -506,7 +506,7 @@ minetest.register_node("scifi_nodes:whtlightbnd", {
 	light_source = 10,
 	paramtype = "light",
 	groups = {cracky=1},
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 --edited wool code (Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>)
@@ -522,7 +522,7 @@ local nodetypes = {
 	{"holes",       "metal with holes","holes"},
 	{"white2",      "plastic",         "white2", 0, true},
     {"super_white",      "Super Plastic",         "super_white", 11},
-    {"ultra_white",      "Ultra Plastic",         "ultra_white", default.LIGHT_MAX},
+    {"ultra_white",      "Ultra Plastic",         "ultra_white", minetest.LIGHT_MAX},
 	{"engine",      "engine",          "engine"},
 	{"wall",      "metal wall",        "wall"},
 	{"white",      "plastic wall",     "white", 0, true},
@@ -587,10 +587,10 @@ local nodetypes = {
 	{"monitorwall",      "Wall monitors",       "monitorwall"},
 	{"screen3",      "Wall monitor",       "screen3"},
 	{"doomlight",      "Doom light",       "doomlight", 12},
-	{"bluwllight",      "Blue wall light", "capsule3", default.LIGHT_MAX},
+	{"bluwllight",      "Blue wall light", "capsule3", minetest.LIGHT_MAX},
 	{"bluegrid",      "Blue Grid", "bluegrid", 5},
 	{"fan",      "Fan",       "fan"},
-	{"ppllght",      "Purple wall light", "", default.LIGHT_MAX},
+	{"ppllght",      "Purple wall light", "", minetest.LIGHT_MAX},
 	{"pplwll",      "Purple wall", "", 0},
 	{"pplwll2",      "Purple wall2", "", 0},
 	{"pplwll3",      "Purple wall3", "", 0},
@@ -619,7 +619,7 @@ for _, row in ipairs(nodetypes) do
 		paramtype = "light",
 		paramtype2 = "facedir",
 		light_source = light,
-		sounds = default.node_sound_glass_defaults()
+		sounds = scifi_nodes.node_sound_glass_defaults()
 	}
 
 	if is_colorable and has_unifieddyes_mod then
@@ -646,7 +646,7 @@ for _, row in ipairs(nodetypes) do
 			paramtype = "light",
 			paramtype2 = "color",
 			light_source = light,
-			sounds = default.node_sound_glass_defaults(),
+			sounds = scifi_nodes.node_sound_glass_defaults(),
 			on_construct = unifieddyes.on_construct,
 			on_dig = unifieddyes.on_dig
 		})

octagon_panes.lua

@@ -27,7 +27,7 @@ local function register(basename, description, texture)
     },
     groups = {cracky = 3, oddly_breakable_by_hand = 3},
     use_texture_alpha = "blend",
-    sounds = default.node_sound_glass_defaults()
+    sounds = scifi_nodes.node_sound_glass_defaults()
   })
 
   -- double height
@@ -52,7 +52,7 @@ local function register(basename, description, texture)
     },
     groups = {cracky = 3, oddly_breakable_by_hand = 3},
     use_texture_alpha = "blend",
-    sounds = default.node_sound_glass_defaults()
+    sounds = scifi_nodes.node_sound_glass_defaults()
   })
 
   -- single height with offset
@@ -77,7 +77,7 @@ local function register(basename, description, texture)
     },
     groups = {cracky = 3, oddly_breakable_by_hand = 3},
     use_texture_alpha = "blend",
-    sounds = default.node_sound_glass_defaults()
+    sounds = scifi_nodes.node_sound_glass_defaults()
   })
 
   -- register recipes

palm_scanner.lua

@@ -22,6 +22,8 @@ local function activate_palm_scanner(pos, node, player)
 
 	-- check protection
 	minetest.after(2, function()
+		if minetest.get_node(pos).name ~= node.name then return end
+
 		if minetest.is_protected(pos, name or "") then
 			-- clicker has no access to area
 			minetest.chat_send_player(name, "Access denied !")
@@ -36,6 +38,7 @@ local function activate_palm_scanner(pos, node, player)
 
 		-- reset state
 		minetest.after(1, function()
+			if minetest.get_node(pos).name ~= node.name then return end
 			node.name = "scifi_nodes:palm_scanner_off"
 			minetest.swap_node(pos, node)
 			mesecon.receptor_off(pos, scifi_nodes.get_switch_rules(node.param2))
@@ -62,7 +65,7 @@ minetest.register_node("scifi_nodes:palm_scanner_off", {
 		}
 	},
 	on_rightclick = (has_mesecons and activate_palm_scanner),
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:palm_scanner_checking", {
@@ -80,7 +83,7 @@ minetest.register_node("scifi_nodes:palm_scanner_checking", {
 	paramtype2 = "wallmounted",
 	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
 	drop = "scifi_nodes:palm_scanner_off",
-	sounds = default.node_sound_glass_defaults()
+	sounds = scifi_nodes.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:palm_scanner_on", {
@@ -103,7 +106,7 @@ minetest.register_node("scifi_nodes:palm_scanner_on", {
 			state = (has_mesecons and mesecon.state.on)
 		}
 	},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 })
 
 minetest.register_craft({

plants.lua

@@ -1,11 +1,11 @@
 
 local plants = {
-	{"flower1", "Glow Flower", 1,0, default.LIGHT_MAX},
+	{"flower1", "Glow Flower", 1,0, minetest.LIGHT_MAX},
 	{"flower2", "Pink Flower", 1.5,0, 10},
 	{"flower3", "Triffid", 2,5, 0},
 	{"flower4", "Weeping flower", 1.5,0, 0},
 	{"plant1", "Bulb Plant", 1,0, 0},
-	{"plant2", "Trap Plant", 1.5,0, default.LIGHT_MAX},
+	{"plant2", "Trap Plant", 1.5,0, minetest.LIGHT_MAX},
 	{"plant3", "Blue Jelly Plant", 1.2,0, 10},
 	{"plant4", "Green Jelly Plant", 1.2,0, 10},
 	{"plant5", "Fern Plant", 1.7,0, 0},

protected_switch.lua

@@ -51,7 +51,7 @@ minetest.register_node("scifi_nodes:protected_switch_on", {
 			state = (has_mesecons and mesecon.state.on)
 		}
 	},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_rightclick = (has_mesecons and toggle_switch),
 	on_timer = (has_mesecons and toggle_switch)
 })
@@ -78,7 +78,7 @@ minetest.register_node("scifi_nodes:protected_switch_off", {
 			state = (has_mesecons and mesecon.state.off)
 		}
 	},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_rightclick = (has_mesecons and toggle_switch)
 })
 

sounds.lua

@@ -0,0 +1,29 @@
+-- sound definitions
+
+function scifi_nodes.node_sound_wood_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_wood_defaults()
+    end
+end
+
+function scifi_nodes.node_sound_glass_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_glass_defaults()
+    end
+end
+
+function scifi_nodes.node_sound_metal_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_metal_defaults()
+    end
+end
+
+function scifi_nodes.node_sound_stone_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_stone_defaults()
+    end
+end

switch.lua

@@ -44,7 +44,7 @@ minetest.register_node("scifi_nodes:switch_on", {
 			state = (has_mesecons and mesecon.state.on)
 		}
 	},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_rightclick = (has_mesecons and toggle_switch),
 	on_timer = (has_mesecons and toggle_switch)
 })
@@ -71,7 +71,7 @@ minetest.register_node("scifi_nodes:switch_off", {
 			state = (has_mesecons and mesecon.state.off)
 		}
 	},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = scifi_nodes.node_sound_glass_defaults(),
 	on_rightclick = (has_mesecons and toggle_switch)
 })