Make diamonds a bit more common in the new depth

mods/CORE/mcl_init/init.lua

@@ -26,10 +26,12 @@ mcl_vars.tool_wield_scale = { x = 1.8, y = 1.8, z = 1 }
 
 -- Mapgen variables
 local mg_name = minetest.get_mapgen_setting("mg_name")
-local minecraft_height_limit = 256
+local minecraft_height_limit = 320
 local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
 local singlenode = mg_name == "singlenode"
 
+local convert_old_bedrock = minetest.settings:get_bool("mcl_convert_old_bedrock", true)
+
 -- Calculate mapgen_edge_min/mapgen_edge_max
 mcl_vars.chunksize = math.max(1, tonumber(minetest.get_mapgen_setting("chunksize")) or 5)
 mcl_vars.MAP_BLOCKSIZE = math.max(1, minetest.MAP_BLOCKSIZE or 16)
@@ -99,7 +101,10 @@ if not superflat and not singlenode then
 	]]
 
 	-- Overworld
-	mcl_vars.mg_overworld_min = -62
+	local mg_overworld_min_default = -128
+	mcl_vars.mg_overworld_min_old = -62
+	mcl_vars.mg_overworld_min = tonumber(minetest.settings:get("mcl_overworld_min")) or mg_overworld_min_default
+
 	mcl_vars.mg_overworld_max_official = mcl_vars.mg_overworld_min + minecraft_height_limit
 	mcl_vars.mg_bedrock_overworld_min = mcl_vars.mg_overworld_min
 	mcl_vars.mg_bedrock_overworld_max = mcl_vars.mg_bedrock_overworld_min + 4
@@ -108,7 +113,8 @@ if not superflat and not singlenode then
 	mcl_vars.mg_bedrock_is_rough = true
 
 elseif singlenode then
-	mcl_vars.mg_overworld_min = -66
+	mcl_vars.mg_overworld_min_old = -66
+	mcl_vars.mg_overworld_min = -130
 	mcl_vars.mg_overworld_max_official = mcl_vars.mg_overworld_min + minecraft_height_limit
 	mcl_vars.mg_bedrock_overworld_min = mcl_vars.mg_overworld_min
 	mcl_vars.mg_bedrock_overworld_max = mcl_vars.mg_bedrock_overworld_min
@@ -262,3 +268,57 @@ function mcl_vars.get_node(p, force, us_timeout)
 	return node
 	-- it still can return "ignore", LOL, even if force = true, but only after time out
 end
+
+-- Abm to update from old mapgen depth to new. potentially affects a lot of nodes inducing lag.
+-- Also it will not generate ores or bedrock pattern.
+
+local adjacents = {
+	vector.new(1,0,0),
+	vector.new(0,1,0),
+	vector.new(0,0,1),
+	vector.new(-1,0,0),
+	vector.new(0,-1,0),
+	vector.new(0,0,-1),
+}
+local function register_abms()
+	minetest.register_abm({
+		label = "Replace bedrock from old bedrock layer and air/void below to deepslate",
+		name = ":mcl_mapgen_core:replace_old_void",
+		nodenames = { "mcl_core:void" },
+		chance = 1,
+		interval = 5,
+		min_y = mcl_vars.mg_bedrock_overworld_max,
+		max_y = mcl_vars.mg_overworld_min_old,
+		action = function(p)
+		minetest.log("void")
+			if p.y > mcl_vars.mg_overworld_min_old - 5 then
+				minetest.bulk_set_node(minetest.find_nodes_in_area(vector.new(p.x-5,mcl_vars.mg_overworld_min_old-5,p.z-5),vector.new(p.x+5,mcl_vars.mg_overworld_min_old,p.z+5),{"mcl_core:void"}),{name="mcl_deepslate:deepslate"})
+			else
+				minetest.after(0,function(p)
+					if minetest.get_node(p).name == "mcl_core:void" then
+						minetest.delete_area(p,p)
+					end
+				end,p)
+			end
+		end
+	})
+	minetest.register_abm({
+		label = "Replace bedrock from old bedrock layer and air/void below to deepslate",
+		name = ":mcl_mapgen_core:replace_old_bedrock",
+		nodenames = { "mcl_core:bedrock" },
+		chance = 5,
+		interval = 5,
+		min_y = mcl_vars.mg_overworld_min_old,
+		max_y = mcl_vars.mg_overworld_min_old + 4,
+		action = function(p)
+			minetest.log("bedr")
+			if minetest.find_node_near(p,24,{"mcl_core:void"}) then
+				return
+			end
+			minetest.bulk_set_node(minetest.find_nodes_in_area(vector.new(p.x-5,mcl_vars.mg_overworld_min_old-1,p.z-5),vector.new(p.x+5,mcl_vars.mg_overworld_min_old+5,p.z+5),{"mcl_core:bedrock",}),{name="mcl_deepslate:deepslate"})
+		end
+	})
+end
+if convert_old_bedrock then
+	register_abms()
+end

mods/CORE/mcl_worlds/init.lua

@@ -36,7 +36,7 @@ end
 --     nil, "void"
 function mcl_worlds.y_to_layer(y)
 	if y >= mcl_vars.mg_overworld_min then
-		return y - mcl_vars.mg_overworld_min, "overworld"
+		return y - mcl_vars.mg_overworld_min_old, "overworld"
 	elseif y >= mcl_vars.mg_nether_min and y <= mcl_vars.mg_nether_max+128 then
 		return y - mcl_vars.mg_nether_min, "nether"
 	elseif y >= mcl_vars.mg_end_min and y <= mcl_vars.mg_end_max then
@@ -62,7 +62,7 @@ local pos_to_dimension = mcl_worlds.pos_to_dimension
 -- mc_dimension is one of "overworld", "nether", "end" (default: "overworld").
 function mcl_worlds.layer_to_y(layer, mc_dimension)
 	if mc_dimension == "overworld" or mc_dimension == nil then
-			   return layer + mcl_vars.mg_overworld_min
+		return layer + mcl_vars.mg_overworld_min_old
 	elseif mc_dimension == "nether" then
 		return layer + mcl_vars.mg_nether_min
 	elseif mc_dimension == "end" then

mods/ENTITIES/mcl_dripping/init.lua

@@ -42,7 +42,7 @@ local function register_drop(liquid, glow, sound, nodes, interval, chance)
 			--with longer abm cycles
 			table.shuffle(nn)
 			for i=1,math.random(#nn) do
-				if minetest.get_item_group(minetest.get_node(vector.offset(nn[i], 0, 1, 0)).name, liquid) ~= 0
+				if nn[i] and minetest.get_item_group(minetest.get_node(vector.offset(nn[i], 0, 1, 0)).name, liquid) ~= 0
 				and minetest.get_node(vector.offset(nn[i], 0, -1, 0)).name == "air" then
 					make_drop(nn[i],liquid,sound,interval)
 				end

mods/ITEMS/mcl_sculk/init.lua

@@ -1,7 +1,7 @@
 local S = minetest.get_translator(minetest.get_current_modname())
 local mt_sound_play = minetest.sound_play
 
-local spread_to = {"mcl_core:stone","mcl_core:dirt","mcl_core:sand","mcl_core:dirt_with_grass","group:grass_block","mcl_core:andesite","mcl_core:diorite","mcl_core:granite","mcl_core:mycelium","group:dirt","mcl_end:end_stone","mcl_nether:netherrack","mcl_blackstone:basalt","mcl_nether:soul_sand","mcl_blackstone:soul_soil","mcl_crimson:warped_nylium","mcl_crimson:crimson_nylium","mcl_core:gravel"}
+local spread_to = {"mcl_core:stone","mcl_core:dirt","mcl_core:sand","mcl_core:dirt_with_grass","group:grass_block","mcl_core:andesite","mcl_core:diorite","mcl_core:granite","mcl_core:mycelium","group:dirt","mcl_end:end_stone","mcl_nether:netherrack","mcl_blackstone:basalt","mcl_nether:soul_sand","mcl_blackstone:soul_soil","mcl_crimson:warped_nylium","mcl_crimson:crimson_nylium","mcl_core:gravel","mcl_deepslate:deepslate","mcl_deepslate:tuff"}
 
 local sounds = {
 	footstep = {name = "mcl_sculk_block", },

mods/MAPGEN/mcl_biomes/init.lua

@@ -1095,7 +1095,6 @@ local function register_biomes()
 		_mcl_palette_index = 22,
 	})
 
-
 	-- Savanna
 	minetest.register_biome({
 		name = "Savanna",
@@ -1489,6 +1488,33 @@ local function register_biomes()
 		_mcl_palette_index = 29,
 	})
 
+	minetest.register_biome({
+		name = "DeepDark",
+		node_top = "mcl_sculk:sculk",
+		depth_top = 1,
+		node_filler = "mcl_deepslate:deepslate",
+		node_riverbed = "mcl_deepslate:deepslate",
+		depth_riverbed = 1,
+		node_stone = "mcl_deepslate:deepslate",
+		y_min = mcl_vars.mg_overworld_min,
+		y_max = mcl_vars.mg_overworld_min_old,
+		humidity_point = 0,
+		heat_point = 60,
+		vertical_blend = 8,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 21,
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:material_stone","mcl_deepslate:deepslate"},
+		sidelen = 16,
+		fill_ratio = 10,
+		biomes = { "DeepDark" },
+		decoration = "mcl_sculk:sculk",
+		flags = "all_floors",
+		param2 = 0,
+	})
+
 	-- Add deep ocean and underground biomes automatically.
 	for i=1, #overworld_biomes do
 		local biome = overworld_biomes[i]
@@ -1517,11 +1543,21 @@ local function register_biomes()
 			name = biome .. "_underground",
 			heat_point = minetest.registered_biomes[biome].heat_point,
 			humidity_point = minetest.registered_biomes[biome].humidity_point,
-			y_min = mcl_vars.mg_overworld_min,
+			y_min = mcl_vars.mg_overworld_min_old,
 			y_max = DEEP_OCEAN_MIN - 1,
 			_mcl_biome_type = minetest.registered_biomes[biome]._mcl_biome_type,
 			_mcl_palette_index = minetest.registered_biomes[biome]._mcl_palette_index,
 		})
+		minetest.register_biome({
+			name = biome .. "_deep_underground",
+			heat_point = minetest.registered_biomes[biome].heat_point,
+			humidity_point = minetest.registered_biomes[biome].humidity_point,
+			node_stone = "mcl_deepslate:deepslate",
+			y_min = mcl_vars.mg_overworld_min,
+			y_max = mcl_vars.mg_overworld_min_old,
+			_mcl_biome_type = minetest.registered_biomes[biome]._mcl_biome_type,
+			_mcl_palette_index = minetest.registered_biomes[biome]._mcl_palette_index,
+		})
 
 	end
 end
@@ -2753,6 +2789,16 @@ local function register_coral_decos(ck)
 end
 
 local function register_decorations()
+	--Deep Dark
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_sculk:sculk"},
+		sidelen = 16,
+		fill_ratio = 0.1,
+		decoration = "mcl_sculk:catalyst",
+		biomes = {"DeepDark"},
+		flags = "all_floors",
+	})
 	-- Coral Reefs
 	for k,_ in pairs(corals) do
 		register_coral_decos(k)

mods/MAPGEN/mcl_mapgen_core/ores.lua

@@ -127,7 +127,6 @@ minetest.register_ore({
 	}
 })
 
-
 minetest.register_ore({
 	ore_type       = "blob",
 	ore            = "mcl_deepslate:deepslate",
@@ -135,7 +134,7 @@ minetest.register_ore({
 	clust_scarcity = 200,
 	clust_num_ores = 100,
 	clust_size     = 10,
-    y_min          = deepslate_min,
+	y_min          = mcl_vars.mg_overworld_min_old,
 	y_max          = deepslate_max,
 	noise_params = {
 		offset  = 0,
@@ -396,7 +395,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_num_ores = 4,
 		clust_size     = 3,
 		y_min          = mcl_vars.mg_overworld_min,
-		y_max          = mcl_worlds.layer_to_y(12),
+		y_max          = mcl_worlds.layer_to_y(-5),
 	})
 	minetest.register_ore({
 		ore_type       = "scatter",
@@ -406,7 +405,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_num_ores = 2,
 		clust_size     = 2,
 		y_min          = mcl_vars.mg_overworld_min,
-		y_max          = mcl_worlds.layer_to_y(12),
+		y_max          = mcl_worlds.layer_to_y(-15),
 	})
 	minetest.register_ore({
 		ore_type       = "scatter",
@@ -693,9 +692,9 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 			{ "iron", 830, 5, 3, deepslate_min, deepslate_max },
 			{ "gold", 4775, 5, 3, deepslate_min, deepslate_max },
 			{ "gold", 6560, 7, 3, deepslate_min, deepslate_max },
-			{ "diamond", 10000, 4, 3, deepslate_min, mcl_worlds.layer_to_y(12) },
-			{ "diamond", 5000, 2, 3, deepslate_min, mcl_worlds.layer_to_y(12) },
-			{ "diamond", 10000, 8, 3, deepslate_min, mcl_worlds.layer_to_y(12) },
+			{ "diamond", 10000, 4, 3, deepslate_min, mcl_worlds.layer_to_y(-12) },
+			{ "diamond", 5000, 2, 3, deepslate_min, mcl_worlds.layer_to_y(-12) },
+			{ "diamond", 10000, 8, 3, deepslate_min, mcl_worlds.layer_to_y(-5) },
 			{ "diamond", 20000, 1, 1, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
 			{ "diamond", 20000, 2, 2, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
 			{ "redstone", 500, 4, 3, deepslate_min, mcl_worlds.layer_to_y(13) },

mods/MAPGEN/mcl_strongholds/init.lua

@@ -49,7 +49,7 @@ local function init_strongholds()
 			if superflat then
 				y = mcl_vars.mg_bedrock_overworld_max + 3
 			else
-				y = pr:next(mcl_vars.mg_bedrock_overworld_max+1, mcl_vars.mg_overworld_min+48)
+				y = pr:next(-50, -30)
 			end
 			local pos = { x = math.cos(angle) * dist, y = y, z = math.sin(angle) * dist }
 			pos = vector.round(pos)

settingtypes.txt

@@ -136,6 +136,9 @@ mcl_default_shadow_intensity (Default shadow intensity) float 0.33 0.0 1.0
 # See also: https://github.com/minetest/minetest/issues/95
 mcl_translucent_ice (Translucent ice) bool false
 
+# Overworld min deep (default: -128)
+mcl_overworld_min (Overworld min deep) int -128 -25000 -62
+
 # Whether to generate fallen logs in some biomes.
 # They might not always look pretty and have strange overhangs.
 mcl_generate_fallen_logs (Generate fallen logs) bool false