Add dry-colored grass/fern variants

mods/ITEMS/mcl_core/functions.lua

@@ -645,7 +645,7 @@ local grass_spread_randomizer = PseudoRandom(minetest.get_mapgen_setting("seed")
 minetest.register_abm({
 	label = "Grass Block and Mycelium spread",
 	nodenames = {"mcl_core:dirt"},
-	neighbors = {"air", "mcl_core:dirt_with_grass", "mcl_core:mycelium"},
+	neighbors = {"air", "group:grass_block", "mcl_core:mycelium"},
 	interval = 30,
 	chance = 20,
 	catch_up = false,
@@ -1190,6 +1190,12 @@ end
 -- of the snowed node.
 mcl_core.register_snowed_node = function(itemstring_snowed, itemstring_clear, tiles, sounds)
 	local def = table.copy(minetest.registered_nodes[itemstring_clear])
+	local create_doc_alias
+	if def.description then
+		create_doc_alias = true
+	else
+		create_doc_alias = false
+	end
 	-- Just some group clearing
 	def.description = nil
 	def._doc_items_longdesc = nil
@@ -1224,7 +1230,7 @@ mcl_core.register_snowed_node = function(itemstring_snowed, itemstring_clear, ti
 	-- Register stuff
 	minetest.register_node(itemstring_snowed, def)
 
-	if minetest.get_modpath("doc") then
+	if create_doc_alias and minetest.get_modpath("doc") then
 		doc.add_entry_alias("nodes", itemstring_clear, "nodes", itemstring_snowed)
 	end
 end

mods/ITEMS/mcl_core/nodes_base.lua

@@ -295,6 +295,7 @@ minetest.register_node("mcl_core:diorite_smooth", {
 	_mcl_hardness = 1.5,
 })
 
+-- Grass Block
 minetest.register_node("mcl_core:dirt_with_grass", {
 	description = "Grass Block",
 	_doc_items_longdesc = "A grass block is dirt with a grass cover. Grass blocks are resourceful blocks which allow the growth of all sorts of plants. They can be turned into farmland with a hoe and turned into grass paths with a shovel. In light, the grass slowly spreads onto dirt nearby. Under an opaque block or a liquid, a grass block may turn back to dirt.",
@@ -302,7 +303,7 @@ minetest.register_node("mcl_core:dirt_with_grass", {
 	tiles = {"default_grass.png", "default_dirt.png", "default_dirt.png^default_grass_side.png"},
 	is_ground_content = true,
 	stack_max = 64,
-	groups = {handy=1,shovely=1, soil=1, soil_sapling=2, soil_sugarcane=1, cultivatable=2, spreading_dirt_type=1, enderman_takable=1, building_block=1},
+	groups = {handy=1,shovely=1, grass_block=1, soil=1, soil_sapling=2, soil_sugarcane=1, cultivatable=2, spreading_dirt_type=1, enderman_takable=1, building_block=1},
 	drop = 'mcl_core:dirt',
 	sounds = mcl_sounds.node_sound_dirt_defaults({
 		footstep = {name="default_grass_footstep", gain=0.4},
@@ -314,6 +315,29 @@ minetest.register_node("mcl_core:dirt_with_grass", {
 })
 mcl_core.register_snowed_node("mcl_core:dirt_with_grass_snow", "mcl_core:dirt_with_grass")
 
+-- Grass Block variant for dry biomes
+minetest.register_node("mcl_core:dirt_with_dry_grass", {
+	_doc_items_create_entry = false,
+	tiles = {"default_dry_grass.png", "default_dirt.png", "default_dirt.png^default_dry_grass_side.png"},
+	is_ground_content = true,
+	stack_max = 64,
+	groups = {handy=1,shovely=1, grass_block=1, soil=1, soil_sapling=2, soil_sugarcane=1, cultivatable=2, spreading_dirt_type=1, enderman_takable=1, building_block=1, not_in_creative_inventory=1},
+	drop = 'mcl_core:dirt',
+	sounds = mcl_sounds.node_sound_dirt_defaults({
+		footstep = {name="default_grass_footstep", gain=0.4},
+	}),
+	on_construct = mcl_core.on_snowable_construct,
+	_mcl_snowed = "mcl_core:dirt_with_dry_grass_snow",
+	_mcl_blast_resistance = 3,
+	_mcl_hardness = 0.6,
+})
+mcl_core.register_snowed_node("mcl_core:dirt_with_dry_grass_snow", "mcl_core:dirt_with_dry_grass")
+
+if minetest.get_modpath("doc") then
+	doc.add_entry_alias("nodes", "mcl_core:dirt_with_grass", "nodes", "mcl_core:dirt_with_dry_grass")
+	doc.add_entry_alias("nodes", "mcl_core:dirt_with_grass", "nodes", "mcl_core:dirt_with_dry_grass_snow")
+end
+
 minetest.register_node("mcl_core:grass_path", {
 	tiles = {"mcl_core_grass_path_top.png", "default_dirt.png", "mcl_core_grass_path_side.png"},
 	description = "Grass Path",

mods/ITEMS/mcl_core/nodes_trees.lua

@@ -112,7 +112,7 @@ local register_sapling = function(subname, description, longdesc, texture, selbo
 			local node_below = minetest.get_node_or_nil({x=pos.x,y=pos.y-1,z=pos.z})
 			if not node_below then return false end
 			local nn = node_below.name
-			return (nn=="mcl_core:dirt_with_grass" or nn=="mcl_core:dirt_with_grass_snow" or
+			return ((minetest.get_item_group(nn, "grass_block") == 1) or
 					nn=="mcl_core:podzol" or nn=="mcl_core:podzol_snow" or
 					nn=="mcl_core:dirt")
 		end),