Add is_ground_content=false to some nodes

mods/ENTITIES/mobs/spawner.lua

@@ -12,6 +12,7 @@ minetest.register_node("mobs:spawner", {
 	walkable = true,
 	description = S("Monster Spawner"),
 	groups = {pickaxey=1, not_in_creative_inventory = 1, material_stone=1},
+	is_ground_content = false,
 	drop = "",
 
 	on_construct = function(pos)

mods/HUD/mcl_inventory/init.lua

@@ -185,6 +185,7 @@ minetest.register_node("mcl_inventory:workbench", {
 	description = "Crafting Table",
 	_doc_items_longdesc = "A crafting table is a block which grants you access to a 3×3 crafting grid which allows you to perform advanced crafts.",
 	_doc_items_usagehelp = "Rightclick the crafting table to access the 3×3 crafting grid.",
+	is_ground_content = false,
 	tiles = {"crafting_workbench_top.png", "default_wood.png", "crafting_workbench_side.png",
 		"crafting_workbench_side.png", "crafting_workbench_front.png", "crafting_workbench_front.png"},
 	paramtype2 = "facedir",

mods/ITEMS/mcl_cauldrons/init.lua

@@ -49,6 +49,7 @@ minetest.register_node("mcl_cauldrons:cauldron", {
 	inventory_image = "mcl_cauldrons_cauldron.png",
 	drawtype = "nodebox",
 	paramtype = "light",
+	is_ground_content = false,
 	sunlight_propagates = true,
 	groups = {pickaxey=1, deco_block=1},
 	node_box = cauldron_nodeboxes[0],
@@ -70,6 +71,7 @@ local register_filled_cauldron = function(water_level, description)
 		_doc_items_create_entry = false,
 		drawtype = "nodebox",
 		paramtype = "light",
+		is_ground_content = false,
 		sunlight_propagates = true,
 		groups = {pickaxey=1, not_in_creative_inventory=1},
 		node_box = cauldron_nodeboxes[water_level],

mods/ITEMS/mcl_core/nodes.lua

@@ -241,6 +241,7 @@ minetest.register_node("mcl_core:stonebrick", {
 	stack_max = 64,
 	groups = {pickaxey=1, stone=1, stonebrick=1, building_block=1, deco_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
+	is_ground_content = false,
 	_mcl_blast_resistance = 30,
 	_mcl_hardness = 1.5,
 })
@@ -252,6 +253,7 @@ minetest.register_node("mcl_core:stonebrickcarved", {
 	stack_max = 64,
 	groups = {pickaxey=1, stone=1, stonebrick=1, building_block=1, deco_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
+	is_ground_content = false,
 	_mcl_blast_resistance = 30,
 	_mcl_hardness = 1.5,
 })
@@ -263,6 +265,7 @@ minetest.register_node("mcl_core:stonebrickcracked", {
 	stack_max = 64,
 	groups = {pickaxey=1, stone=1, stonebrick=1, building_block=1, deco_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
+	is_ground_content = false,
 	_mcl_blast_resistance = 30,
 	_mcl_hardness = 1.5,
 })
@@ -273,6 +276,7 @@ minetest.register_node("mcl_core:stonebrickmossy", {
 	stack_max = 64,
 	groups = {pickaxey=1, stone=1, stonebrick=1, building_block=1, deco_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
+	is_ground_content = false,
 	_mcl_blast_resistance = 30,
 	_mcl_hardness = 1.5,
 })
@@ -294,6 +298,7 @@ minetest.register_node("mcl_core:granite_smooth", {
 	_doc_items_longdesc = "Polished granite is a decorational building block made from granite.",
 	tiles = {"default_granite_smooth.png"},
 	stack_max = 64,
+	is_ground_content = false,
 	groups = {pickaxey=1, stone=1, building_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	_mcl_blast_resistance = 30,
@@ -316,6 +321,7 @@ minetest.register_node("mcl_core:andesite_smooth", {
 	description = "Polished Andesite",
 	_doc_items_longdesc = "Polished andesite is a decorational building block made from andesite.",
 	tiles = {"default_andesite_smooth.png"},
+	is_ground_content = false,
 	stack_max = 64,
 	groups = {pickaxey=1, stone=1, building_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
@@ -339,6 +345,7 @@ minetest.register_node("mcl_core:diorite_smooth", {
 	description = "Polished Diorite",
 	_doc_items_longdesc = "Polished diorite is a decorational building block made from diorite.",
 	tiles = {"default_diorite_smooth.png"},
+	is_ground_content = false,
 	stack_max = 64,
 	groups = {pickaxey=1, stone=1, building_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
@@ -1500,7 +1507,7 @@ minetest.register_node("mcl_core:lava_source", {
 minetest.register_node("mcl_core:cobble", {
 	description = "Cobblestone",
 	tiles = {"default_cobble.png"},
-	is_ground_content = true,
+	is_ground_content = false,
 	stack_max = 64,
 	groups = {pickaxey=1, building_block=1, deco_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
@@ -1511,7 +1518,7 @@ minetest.register_node("mcl_core:cobble", {
 minetest.register_node("mcl_core:mossycobble", {
 	description = "Moss Stone",
 	tiles = {"default_mossycobble.png"},
-	is_ground_content = true,
+	is_ground_content = false,
 	stack_max = 64,
 	groups = {pickaxey=1, building_block=1, material_stone=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),

mods/ITEMS/mcl_farming/pumpkin.lua

@@ -306,6 +306,7 @@ minetest.register_abm({
 
 minetest.register_node("mcl_farming:pumpkin_face_light", {
 	description = "Jack o'Lantern",
+	is_ground_content = false,
 	stack_max = 64,
 	paramtype2 = "facedir",
 	-- Real light level: 15 (Minetest caps at 14)

mods/ITEMS/mcl_flowerpots/nodes.lua

@@ -47,6 +47,7 @@ minetest.register_node("mcl_flowerpots:flower_pot", {
 		type = "fixed",
 		fixed = {-0.2, -0.5, -0.2, 0.2, -0.1, 0.2}
 	},
+	is_ground_content = false,
 	inventory_image = "mcl_flowerpots_flowerpot_inventory.png",
 	groups = {dig_immediate=3, deco_block=1, attached_node=1, flower_pot=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
@@ -108,6 +109,7 @@ minetest.register_node("mcl_flowerpots:flower_pot_"..flower, {
 		type = "fixed",
 		fixed = {-0.2, -0.5, -0.2, 0.2, -0.1, 0.2}
 	},
+	is_ground_content = false,
 	groups = {dig_immediate=3, attached_node=1, not_in_creative_inventory=1, flower_pot=2},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	on_rightclick = function(pos, item, clicker)
@@ -145,6 +147,7 @@ minetest.register_node("mcl_flowerpots:flower_pot_"..flower, {
 		type = "fixed",
 		fixed = {-0.2, -0.5, -0.2, 0.2, -0.1, 0.2}
 	},
+	is_ground_content = false,
 	groups = {dig_immediate=3, attached_node=1, not_in_creative_inventory=1, flower_pot=2},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	on_rightclick = function(pos, item, clicker)

mods/ITEMS/mcl_hoppers/init.lua

@@ -43,6 +43,7 @@ Hoppers interact with containers the following way:
 			{-0.15, -0.3, -0.15, 0.15, -0.5, 0.15},
 			},
 		},
+	is_ground_content = false,
 
 	on_construct = function(pos)
 		local meta = minetest.get_meta(pos)
@@ -156,6 +157,7 @@ minetest.register_node("mcl_hoppers:hopper_side", {
 			{-0.7, -0.3, -0.15, 0.15, 0.0, 0.15},
 			},
 		},
+	is_ground_content = false,
 
 	on_construct = function(pos)
 		local meta = minetest.get_meta(pos)

mods/ITEMS/mcl_jukebox/init.lua

@@ -92,6 +92,7 @@ minetest.register_node("mcl_jukebox:jukebox", {
 	tiles = {"mcl_jukebox_top.png", "mcl_jukebox_side.png", "mcl_jukebox_side.png"},
 	sounds = mcl_sounds.node_sound_wood_defaults(),
 	groups = {handy=1,axey=1, deco_block=1, material_wood=1},
+	is_ground_content = false,
 	on_construct = function(pos)
 		local meta = minetest.get_meta(pos)
 		local inv = meta:get_inventory()

mods/ITEMS/mcl_minecarts/rails.lua

@@ -37,7 +37,7 @@ minetest.register_node("mcl_minecarts:golden_rail", {
 	inventory_image = "carts_rail_pwr.png",
 	wield_image = "carts_rail_pwr.png",
 	paramtype = "light",
-	is_ground_content = true,
+	is_ground_content = false,
 	walkable = false,
 	selection_box = {
 		type = "fixed",

mods/ITEMS/mcl_torches/init.lua

@@ -28,6 +28,7 @@ mcl_torches.register_torch = function(substring, description, icon, mesh_floor,
 		paramtype = "light",
 		paramtype2 = "wallmounted",
 		sunlight_propagates = true,
+		is_ground_content = false,
 		walkable = false,
 		liquids_pointable = false,
 		light_source = light,
@@ -134,6 +135,7 @@ mcl_torches.register_torch = function(substring, description, icon, mesh_floor,
 		paramtype = "light",
 		paramtype2 = "wallmounted",
 		sunlight_propagates = true,
+		is_ground_content = false,
 		walkable = false,
 		light_source = light,
 		groups = groups_wall,