[mapgen] rebalance mapgen/init core code

mods/CORE/mcl_mapgen/init.lua

@@ -1,12 +1,17 @@
 mcl_mapgen = {}
+mcl_mapgen.overworld = {}
+mcl_mapgen.nether = {}
+mcl_mapgen.end = {}
 
+local minetest_log, math_floor = minetest.log, math.floor
+local minetest_get_node = minetest.get_node
 
 -- Calculate mapgen_edge_min/mapgen_edge_max
 mcl_mapgen.CS		= math.max(1, tonumber(minetest.get_mapgen_setting("chunksize"))	or 5)
 mcl_mapgen.BS		= math.max(1, core.MAP_BLOCKSIZE					or 16)
 mcl_mapgen.LIMIT	= math.max(1, tonumber(minetest.get_mapgen_setting("mapgen_limit"))	or 31000)
 mcl_mapgen.MAX_LIMIT	= math.max(1, core.MAX_MAP_GENERATION_LIMIT				or 31000)
-mcl_mapgen.OFFSET	= - math.floor(mcl_mapgen.CS / 2)
+mcl_mapgen.OFFSET	= - math_floor(mcl_mapgen.CS / 2)
 mcl_mapgen.OFFSET_NODES	= mcl_mapgen.OFFSET * mcl_mapgen.BS
 mcl_mapgen.CS_NODES	= mcl_mapgen.CS * mcl_mapgen.BS
 
@@ -16,15 +21,17 @@ local central_chunk_max_pos = central_chunk_min_pos + mcl_mapgen.CS_NODES - 1
 local ccfmin = central_chunk_min_pos - mcl_mapgen.BS -- Fullminp/fullmaxp of central chunk, in nodes
 local ccfmax = central_chunk_max_pos + mcl_mapgen.BS
 
-local mapgen_limit_b = math.floor(math.min(mcl_mapgen.LIMIT, mcl_mapgen.MAX_LIMIT) / mcl_mapgen.BS)
+local mapgen_limit_b = math_floor(math.min(mcl_mapgen.LIMIT, mcl_mapgen.MAX_LIMIT) / mcl_mapgen.BS)
 local mapgen_limit_min = - mapgen_limit_b	* mcl_mapgen.BS
 local mapgen_limit_max =  (mapgen_limit_b + 1)	* mcl_mapgen.BS - 1
 
-local numcmin = math.max(math.floor((ccfmin - mapgen_limit_min) / mcl_vars.chunk_size_in_nodes), 0) -- Number of complete chunks from central chunk
+local numcmin = math.max(math_floor((ccfmin - mapgen_limit_min) / mcl_mapgen.CS_NODES), 0) -- Number of complete chunks from central chunk
-local numcmax = math.max(math.floor((mapgen_limit_max - ccfmax) / mcl_vars.chunk_size_in_nodes), 0) -- fullminp/fullmaxp to effective mapgen limits.
+local numcmax = math.max(math_floor((mapgen_limit_max - ccfmax) / mcl_mapgen.CS_NODES), 0) -- fullminp/fullmaxp to effective mapgen limits.
 
 mcl_mapgen.EDGE_MIN = central_chunk_min_pos - numcmin * mcl_mapgen.CS_NODES
 mcl_mapgen.EDGE_MAX = central_chunk_max_pos + numcmax * mcl_mapgen.CS_NODES
+
+minetest_log("action", "[mcl_mapgen] World edges are: mcl_mapgen.EDGE_MIN = " .. tostring(mcl_mapgen.EDGE_MIN) .. ", mcl_mapgen.EDGE_MAX = " .. tostring(mcl_mapgen.EDGE_MAX))
 ------------------------------------------
 
 
@@ -33,12 +40,10 @@ local lvm, block, lvm_block, lvm_chunk, param2, nodes_block, nodes_chunk = 0, 0,
 local lvm_buffer, lvm_param2_buffer = {}, {} -- Static buffer pointers
 local BS, CS = mcl_mapgen.BS, mcl_mapgen.CS -- Mapblock size (in nodes), Mapchunk size (in blocks)
 local LAST_BLOCK, LAST_NODE = CS - 1, BS - 1 -- First mapblock in chunk (node in mapblock) has number 0, last has THIS number. It's for runtime optimization
-local offset = math.floor(mcl_vars.central_chunk_offset_in_nodes / BS) -- Central mapchunk offset (in blocks)
+local offset = mcl_mapgen.OFFSET -- Central mapchunk offset (in blocks)
 
 local DEFAULT_PRIORITY	= 5000
 
-local minetest_log, math_floor = minetest.log, math.floor
-
 function mcl_mapgen.register_chunk_generator(callback_function, priority)
 	nodes_chunk = nodes_chunk + 1
 	node_chunk_queue[nodes_chunk] = {i = priority or DEFAULT_PRIORITY, f = callback_function}
@@ -141,15 +146,17 @@ minetest.register_on_generated(function(minp, maxp, blockseed)
 		end
 	end
 
-	if vm_context.write then
+	if lvm > 0 then
-		vm:set_data(data)
+		if vm_context.write then
+			vm:set_data(data)
+		end
+		if vm_context.write_param2 then
+			vm:set_param2_data(data2)
+		end
+		vm:calc_lighting(minp, maxp, vm_context.shadow) -- TODO: check boundaries
+		vm:write_to_map()
+		vm:update_liquids()
 	end
-	if vm_context.write_param2 then
-		vm:set_param2_data(data2)
-	end
-	vm:calc_lighting(p1, p2, shadow)
-	vm:write_to_map()
-	vm:update_liquids()
 
 	for _, v in pairs(node_chunk_queue) do
 		v.f(minp, maxp, blockseed)
@@ -174,11 +181,11 @@ function mcl_mapgen.get_far_node(p)
 end
 
 local function coordinate_to_block(x)
-	return math_floor(x / mcl_mapgen.BS)
+	return math_floor(x / BS)
 end
 
 local function coordinate_to_chunk(x)
-	return math_floor((coordinate_to_block(x) - central_chunk_offset) / mcl_mapgen.CS)
+	return math_floor((coordinate_to_block(x) - offset) / CS)
 end
 
 function mcl_mapgen.pos_to_block(pos)
@@ -197,7 +204,7 @@ function mcl_mapgen.pos_to_chunk(pos)
 	}
 end
 
-local k_positive = math.ceil(mcl_mapgen.MAX_LIMIT / mcl_vars.chunk_size_in_nodes)
+local k_positive = math.ceil(mcl_mapgen.MAX_LIMIT / mcl_mapgen.CS_NODES)
 local k_positive_z = k_positive * 2
 local k_positive_y = k_positive_z * k_positive_z
 
@@ -210,96 +217,79 @@ function mcl_mapgen.get_chunk_number(pos) -- unsigned int
 end
 
 
-
-
-
 -- Mapgen variables
-local mg_name = minetest.get_mapgen_setting("mg_name")
+mcl_mapgen.name = minetest.get_mapgen_setting("mg_name")
-local minecraft_height_limit = 256
+mcl_mapgen.superflat = mcl_mapgen.name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
-local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
+mcl_mapgen.singlenode = mcl_mapgen.name == "singlenode"
-local singlenode = mg_name == "singlenode"
+mcl_mapgen.normal = not mcl_mapgen.superflat and not mcl_mapgen.singlenode
+local superflat, singlenode, normal = mcl_mapgen.superflat, mcl_mapgen.singlenode, mcl_mapgen.normal
 
-if not superflat and not singlenode then
+minetest_log("action", "[mcl_mapgen] Mapgen mode: " .. normal and "normal" or (superflat and "superflat" or "singlenode"))
-	-- Normal mode
-	--[[ Realm stacking (h is for height)
-	- Overworld (h>=256)
-	- Void (h>=1000)
-	- Realm Barrier (h=11), to allow escaping the End
-	- End (h>=256)
-	- Void (h>=1000)
-	- Nether (h=128)
-	- Void (h>=1000)
-	]]
 
-	-- Overworld
+mcl_mapgen.minecraft_height_limit = 256
-	mcl_vars.mg_overworld_min = -62
-	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
-	mcl_vars.mg_lava_overworld_max = mcl_vars.mg_overworld_min + 10
-	mcl_vars.mg_lava = true
-	mcl_vars.mg_bedrock_is_rough = true
 
-elseif singlenode then
+mcl_mapgen.bedrock_is_rough = normal
-	mcl_vars.mg_overworld_min = -66
+
-	mcl_vars.mg_overworld_max_official = mcl_vars.mg_overworld_min + minecraft_height_limit
+--[[ Realm stacking (h is for height)
-	mcl_vars.mg_bedrock_overworld_min = mcl_vars.mg_overworld_min
+- Overworld (h>=256)
-	mcl_vars.mg_bedrock_overworld_max = mcl_vars.mg_bedrock_overworld_min
+- Void (h>=1000)
-	mcl_vars.mg_lava = false
+- Realm Barrier (h=11), to allow escaping the End
-	mcl_vars.mg_lava_overworld_max = mcl_vars.mg_overworld_min
+- End (h>=256)
-	mcl_vars.mg_bedrock_is_rough = false
+- Void (h>=1000)
-else
+- Nether (h=128)
-	-- Classic superflat
+- Void (h>=1000)
-	local ground = minetest.get_mapgen_setting("mgflat_ground_level")
+]]
-	ground = tonumber(ground)
+
-	if not ground then
+-- Overworld
-		ground = 8
+mcl_mapgen.overworld.min = -62
-	end
+if superflat then
-	mcl_vars.mg_overworld_min = ground - 3
+	mcl_mapgen.ground = tonumber(minetest.get_mapgen_setting("mgflat_ground_level")) or 8
-	mcl_vars.mg_overworld_max_official = mcl_vars.mg_overworld_min + minecraft_height_limit
+	mcl_mapgen.overworld.min = ground - 3
-	mcl_vars.mg_bedrock_overworld_min = mcl_vars.mg_overworld_min
-	mcl_vars.mg_bedrock_overworld_max = mcl_vars.mg_bedrock_overworld_min
-	mcl_vars.mg_lava = false
-	mcl_vars.mg_lava_overworld_max = mcl_vars.mg_overworld_min
-	mcl_vars.mg_bedrock_is_rough = false
 end
+-- if singlenode then mcl_mapgen.overworld.min = -66 end -- DONT KNOW WHY
+mcl_mapgen.overworld.max = mcl_mapgen.EDGE_MAX
+
+mcl_mapgen.overworld.bedrock_min = mcl_mapgen.overworld.min
+mcl_mapgen.overworld.bedrock_max = mcl_mapgen.overworld.bedrock_min + (mcl_mapgen.bedrock_is_rough and 4 or 0)
+
+mcl_mapgen.lava = normal
+mcl_mapgen.lava_overworld_max = mcl_mapgen.overworld.min + (normal and 10 or 0)
 
-mcl_vars.mg_overworld_max = mcl_mapgen.EDGE_MAX
 
 -- The Nether (around Y = -29000)
-mcl_vars.mg_nether_min = -29067 -- Carefully chosen to be at a mapchunk border
+mcl_mapgen.nether.min = -29067 -- Carefully chosen to be at a mapchunk border
-mcl_vars.mg_nether_max = mcl_vars.mg_nether_min + 128
+mcl_mapgen.nether.max = mcl_mapgen.nether.min + 128
-mcl_vars.mg_bedrock_nether_bottom_min = mcl_vars.mg_nether_min
+mcl_mapgen.nether.bedrock_bottom_min = mcl_mapgen.nether.min
-mcl_vars.mg_bedrock_nether_top_max = mcl_vars.mg_nether_max
+mcl_mapgen.nether.bedrock_top_max = mcl_mapgen.nether.max
 if not superflat then
-	mcl_vars.mg_bedrock_nether_bottom_max = mcl_vars.mg_bedrock_nether_bottom_min + 4
+	mcl_mapgen.nether.bedrock_bottom_max = mcl_vars.mg_bedrock_nether_bottom_min + 4
-	mcl_vars.mg_bedrock_nether_top_min = mcl_vars.mg_bedrock_nether_top_max - 4
+	mcl_mapgen.nether.bedrock_top_min = mcl_vars.mg_bedrock_nether_top_max - 4
-	mcl_vars.mg_lava_nether_max = mcl_vars.mg_nether_min + 31
+	mcl_mapgen.nether.lava_max = mcl_mapgen.nether.min + 31
 else
 	-- Thin bedrock in classic superflat mapgen
-	mcl_vars.mg_bedrock_nether_bottom_max = mcl_vars.mg_bedrock_nether_bottom_min
+	mcl_mapgen.nether.bedrock_bottom_max = mcl_vars.mg_bedrock_nether_bottom_min
-	mcl_vars.mg_bedrock_nether_top_min = mcl_vars.mg_bedrock_nether_top_max
+	mcl_mapgen.nether.bedrock_top_min = mcl_vars.mg_bedrock_nether_top_max
-	mcl_vars.mg_lava_nether_max = mcl_vars.mg_nether_min + 2
+	mcl_mapgen.nether.lava_max = mcl_mapgen.nether.min + 2
 end
-if mg_name == "flat" then
+if mcl_mapgen.name == "flat" then
 	if superflat then
-		mcl_vars.mg_flat_nether_floor = mcl_vars.mg_bedrock_nether_bottom_max + 4
+		mcl_mapgen.nether.flat_nether_floor = mcl_mapgen.nether.bedrock_nether_bottom_max + 4
-		mcl_vars.mg_flat_nether_ceiling = mcl_vars.mg_bedrock_nether_bottom_max + 52
+		mcl_mapgen.nether.flat_nether_ceiling = mcl_mapgen.nether.bedrock_nether_bottom_max + 52
 	else
-		mcl_vars.mg_flat_nether_floor = mcl_vars.mg_lava_nether_max + 4
+		mcl_mapgen.nether.flat_nether_floor = mcl_mapgen.nether.lava_nether_max + 4
-		mcl_vars.mg_flat_nether_ceiling = mcl_vars.mg_lava_nether_max + 52
+		mcl_mapgen.nether.flat_nether_ceiling = mcl_mapgen.nether.lava_nether_max + 52
 	end
 end
 
 -- The End (surface at ca. Y = -27000)
-mcl_vars.mg_end_min = -27073 -- Carefully chosen to be at a mapchunk border
+mcl_mapgen.end.min = -27073 -- Carefully chosen to be at a mapchunk border
-mcl_vars.mg_end_max_official = mcl_vars.mg_end_min + minecraft_height_limit
+mcl_mapgen.end.max_official = mcl_mapgen.end.min + mcl_mapgen.minecraft_height_limit
-mcl_vars.mg_end_max = mcl_vars.mg_overworld_min - 2000
+mcl_mapgen.end.max = mcl_mapgen.overworld.min - 2000
-mcl_vars.mg_end_platform_pos = { x = 100, y = mcl_vars.mg_end_min + 74, z = 0 }
+mcl_vars.mg_end_platform_pos = { x = 100, y = mcl_mapgen.end.min + 74, z = 0 }
 
 -- Realm barrier used to safely separate the End from the void below the Overworld
-mcl_vars.mg_realm_barrier_overworld_end_max = mcl_vars.mg_end_max
+mcl_vars.mg_realm_barrier_overworld_end_max = mcl_mapgen.end.max
-mcl_vars.mg_realm_barrier_overworld_end_min = mcl_vars.mg_end_max - 11
+mcl_vars.mg_realm_barrier_overworld_end_min = mcl_mapgen.end.max - 11
 
 -- Use MineClone 2-style dungeons
 mcl_vars.mg_dungeons = true

mods/CORE/mcl_worlds/init.lua

@@ -3,25 +3,25 @@ mcl_worlds = {}
 -- For a given position, returns a 2-tuple:
 -- 1st return value: true if pos is in void
 -- 2nd return value: true if it is in the deadly part of the void
+local min1, min2, min3 = mcl_mapgen.overworld.min, mcl_mapgen.end.min, mcl_mapgen.nether.min
+local max1, max2, max3 = mcl_mapgen.overworld.max, mcl_mapgen.end.max, mcl_mapgen.nether.max+128
 function mcl_worlds.is_in_void(pos)
-	local void =
+	local y = pos.y
-		not ((pos.y < mcl_vars.mg_overworld_max and pos.y > mcl_vars.mg_overworld_min) or
+	local void = not ((y < max1 and y > min1) or (y < max2 and y > min2) or (y < max3 and y > min3))
-		(pos.y < mcl_vars.mg_nether_max+128 and pos.y > mcl_vars.mg_nether_min) or
-		(pos.y < mcl_vars.mg_end_max and pos.y > mcl_vars.mg_end_min))
 
 	local void_deadly = false
 	local deadly_tolerance = 64 -- the player must be this many nodes “deep” into the void to be damaged
 	if void then
 		-- Overworld → Void → End → Void → Nether → Void
-		if pos.y < mcl_vars.mg_overworld_min and pos.y > mcl_vars.mg_end_max then
+		if y < mcl_vars.min1 and y > max2 then
-			void_deadly = pos.y < mcl_vars.mg_overworld_min - deadly_tolerance
+			void_deadly = y < min1 - deadly_tolerance
-		elseif pos.y < mcl_vars.mg_end_min and pos.y > mcl_vars.mg_nether_max+128 then
+		elseif y < min2 and y > max3 then
 			-- The void between End and Nether. Like usual, but here, the void
 			-- *above* the Nether also has a small tolerance area, so player
 			-- can fly above the Nether without getting hurt instantly.
-			void_deadly = (pos.y < mcl_vars.mg_end_min - deadly_tolerance) and (pos.y > mcl_vars.mg_nether_max+128 + deadly_tolerance)
+			void_deadly = (y < min2 - deadly_tolerance) and (y > max3 + deadly_tolerance)
-		elseif pos.y < mcl_vars.mg_nether_min then
+		elseif y < min3 then
-			void_deadly = pos.y < mcl_vars.mg_nether_min - deadly_tolerance
+			void_deadly = y < min3 - deadly_tolerance
 		end
 	end
 	return void, void_deadly
@@ -33,12 +33,12 @@ end
 -- If the Y coordinate is not located in any dimension, it will return:
 --     nil, "void"
 function mcl_worlds.y_to_layer(y)
-       if y >= mcl_vars.mg_overworld_min then
+       if y >= min1 then
-               return y - mcl_vars.mg_overworld_min, "overworld"
+               return y - min1, "overworld"
-       elseif y >= mcl_vars.mg_nether_min and y <= mcl_vars.mg_nether_max+128 then
+       elseif y >= min3 and y <= max3 then
-               return y - mcl_vars.mg_nether_min, "nether"
+               return y - min3, "nether"
-       elseif y >= mcl_vars.mg_end_min and y <= mcl_vars.mg_end_max then
+       elseif y >= min2 and y <= max2 then
-               return y - mcl_vars.mg_end_min, "end"
+               return y - min2, "end"
        else
                return nil, "void"
        end

mods/ENTITIES/mobs_mc_gameconfig/init.lua

@@ -233,15 +233,15 @@ mobs_mc.override.spawn_height = {
 	water = tonumber(minetest.settings:get("water_level")) or 0, -- Water level in the Overworld
 
 	-- Overworld boundaries (inclusive)
-	overworld_min = mcl_vars.mg_overworld_min,
+	overworld_min = mcl_mapgen.overworld.min,
-	overworld_max = mcl_vars.mg_overworld_max,
+	overworld_max = mcl_mapgen.overworld.max,
 
 	-- Nether boundaries (inclusive)
-	nether_min = mcl_vars.mg_nether_min,
+	nether_min = mcl_mapgen.nether.min,
-	nether_max = mcl_vars.mg_nether_max,
+	nether_max = mcl_mapgen.nether.max,
 
 	-- End boundaries (inclusive)
-	end_min = mcl_vars.mg_end_min,
+	end_min = mcl_mapgen.end.min,
-	end_max = mcl_vars.mg_end_max,
+	end_max = mcl_mapgen.end.max,
 }
 

mods/ITEMS/mcl_portals/portal_nether.lua

@@ -27,7 +27,7 @@ local DELAY				= 3 -- seconds before teleporting in Nether portal in Survival mo
 local DISTANCE_MAX			= 128
 local PORTAL				= "mcl_portals:portal"
 local OBSIDIAN				= "mcl_core:obsidian"
-local O_Y_MIN, O_Y_MAX			= max(mcl_vars.mg_overworld_min, -31), min(mcl_vars.mg_overworld_max, 2048)
+local O_Y_MIN, O_Y_MAX			= max(mcl_mapgen.overworld.min, -31), min(mcl_mapgen.overworld.max, 2048)
 local N_Y_MIN, N_Y_MAX			= mcl_vars.mg_bedrock_nether_bottom_min, mcl_vars.mg_bedrock_nether_top_min - H_MIN
 
 -- Alpha and particles
@@ -66,7 +66,7 @@ minetest.register_on_shutdown(function()
 	storage:set_string("nether_exits_keys", minetest.serialize(keys))
 end)
 
-local get_node = mcl_vars.get_node
+local get_node = mcl_mapgen.get_far_node
 local set_node = minetest.set_node
 local registered_nodes = minetest.registered_nodes
 local is_protected = minetest.is_protected
@@ -414,7 +414,7 @@ local function create_portal_2(pos1, name, obj)
 	end
 	local exit = build_nether_portal(pos1, W_MIN-2, H_MIN-2, orientation, name)
 	finalize_teleport(obj, exit)
-	local cn = mcl_vars.get_chunk_number(pos1)
+	local cn = mcl_mapgen.get_chunk_number(pos1)
 	chunks[cn] = nil
 	if queue[cn] then
 		for next_obj, _ in pairs(queue[cn]) do
@@ -428,9 +428,9 @@ end
 
 local function get_lava_level(pos, pos1, pos2)
 	if pos.y > -1000 then
-		return max(min(mcl_vars.mg_lava_overworld_max, pos2.y-1), pos1.y+1)
+		return max(min(mcl_mapgen.overworld.lava_max, pos2.y-1), pos1.y+1)
 	end
-	return max(min(mcl_vars.mg_lava_nether_max, pos2.y-1), pos1.y+1)
+	return max(min(mcl_mapgen.nether.lava_max, pos2.y-1), pos1.y+1)
 end
 
 local function ecb_scan_area_2(blockpos, action, calls_remaining, param)
@@ -509,7 +509,7 @@ local function ecb_scan_area_2(blockpos, action, calls_remaining, param)
 end
 
 local function create_portal(pos, limit1, limit2, name, obj)
-	local cn = mcl_vars.get_chunk_number(pos)
+	local cn = mcl_mapgen.get_chunk_number(pos)
 	if chunks[cn] then
 		local q = queue[cn] or {}
 		q[obj] = true
@@ -537,8 +537,8 @@ local function create_portal(pos, limit1, limit2, name, obj)
 	end
 
 	-- Basically the copy of code above, with minor additions to continue the search in single additional chunk below:
-	local next_chunk_1 = {x = pos1.x, y = pos1.y - mcl_vars.chunk_size_in_nodes, z = pos1.z}
+	local next_chunk_1 = {x = pos1.x, y = pos1.y - mcl_mapgen.CS_NODES, z = pos1.z}
-	local next_chunk_2 = add(next_chunk_1, mcl_vars.chunk_size_in_nodes - 1)
+	local next_chunk_2 = add(next_chunk_1, mcl_mapgen.CS_NODES - 1)
 	local next_pos = {x = pos.x, y=max(next_chunk_2.y, limit1.y), z = pos.z}
 	if limit1 and limit1.x and limit1.y and limit1.z then
 		pos1 = {x = max(min(limit1.x, pos.x), pos1.x), y = max(min(limit1.y, pos.y), pos1.y), z = max(min(limit1.z, pos.z), pos1.z)}

mods/MAPGEN/mcl_biomes/mod.conf

@@ -1,4 +1,4 @@
 name = mcl_biomes
 author = maikerumine
 description = Adds the various biomes and biome-related things for non-v6 map generators.
-depends = mcl_init, mcl_mapgen_core, mcl_core, mcl_worlds, mcl_farming, mcl_flowers, mcl_end, mcl_ocean
+depends = mcl_mapgen, mcl_mapgen_core, mcl_core, mcl_worlds, mcl_farming, mcl_flowers, mcl_end, mcl_ocean

mods/MAPGEN/mcl_dungeons/init.lua

@@ -32,11 +32,11 @@ local math_max         = math.max
 local math_ceil        = math.ceil
 
 --custom mcl_vars
-local get_node = mcl_vars.get_node
+local get_node = mcl_mapgen.get_far_node
 
 
-local min_y = math_max(mcl_vars.mg_overworld_min, mcl_vars.mg_bedrock_overworld_max) + 1
+local min_y = math_max(mcl_mapgen.overworld.min, mcl_vars.mg_bedrock_overworld_max) + 1
-local max_y = mcl_vars.mg_overworld_max - 1
+local max_y = mcl_mapgen.overworld.max - 1
 -- Calculate the number of dungeon spawn attempts
 -- In Minecraft, there 8 dungeon spawn attempts Minecraft chunk (16*256*16 = 65536 blocks).
 -- Minetest chunks don't have this size, so scale the number accordingly.

mods/MAPGEN/mcl_mapgen_core/init.lua

@@ -97,8 +97,8 @@ for s=1, #specialstones do
 		clust_scarcity = 15*15*15,
 		clust_num_ores = 33,
 		clust_size     = 5,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
-		y_max          = mcl_vars.mg_overworld_max,
+		y_max          = mcl_mapgen.overworld.max,
 		noise_params = {
 			offset  = 0,
 			scale   = 1,
@@ -117,8 +117,8 @@ for s=1, #specialstones do
 		clust_scarcity = 10*10*10,
 		clust_num_ores = 58,
 		clust_size     = 7,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
-		y_max          = mcl_vars.mg_overworld_max,
+		y_max          = mcl_mapgen.overworld.max,
 		noise_params = {
 			offset  = 0,
 			scale   = 1,
@@ -142,8 +142,8 @@ minetest.register_ore({
 	clust_scarcity = 15*15*15,
 	clust_num_ores = 33,
 	clust_size     = 4,
-	y_min          = mcl_vars.mg_overworld_min,
+	y_min          = mcl_mapgen.overworld.min,
-	y_max          = mcl_vars.mg_overworld_max,
+	y_max          = mcl_mapgen.overworld.max,
 	noise_params = {
 		offset  = 0,
 		scale   = 1,
@@ -164,7 +164,7 @@ minetest.register_ore({
 	clust_scarcity = 14*14*14,
 	clust_num_ores = 33,
 	clust_size     = 5,
-	y_min          = mcl_vars.mg_overworld_min,
+	y_min          = mcl_mapgen.overworld.min,
 	y_max          = mcl_worlds.layer_to_y(111),
 	noise_params = {
 		offset  = 0,
@@ -191,7 +191,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 525*3,
 		clust_num_ores = 5,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(50),
 	})
 	minetest.register_ore({
@@ -201,7 +201,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 510*3,
 		clust_num_ores = 8,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(50),
 	})
 	minetest.register_ore({
@@ -211,7 +211,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 500*3,
 		clust_num_ores = 12,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(50),
 	})
 
@@ -289,7 +289,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 830,
 		clust_num_ores = 5,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(39),
 	})
 	minetest.register_ore({
@@ -315,7 +315,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 4775,
 		clust_num_ores = 5,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(30),
 	})
 	minetest.register_ore({
@@ -325,7 +325,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 6560,
 		clust_num_ores = 7,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(30),
 	})
 
@@ -353,7 +353,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 10000,
 		clust_num_ores = 4,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(12),
 	})
 	minetest.register_ore({
@@ -363,7 +363,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 5000,
 		clust_num_ores = 2,
 		clust_size     = 2,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(12),
 	})
 	minetest.register_ore({
@@ -373,7 +373,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 10000,
 		clust_num_ores = 8,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(12),
 	})
 
@@ -411,7 +411,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 500,
 		clust_num_ores = 4,
 		clust_size     = 3,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(13),
 	})
 	minetest.register_ore({
@@ -421,7 +421,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 		clust_scarcity = 800,
 		clust_num_ores = 7,
 		clust_size     = 4,
-		y_min          = mcl_vars.mg_overworld_min,
+		y_min          = mcl_mapgen.overworld.min,
 		y_max          = mcl_worlds.layer_to_y(13),
 	})
 
@@ -462,7 +462,7 @@ if minetest.settings:get_bool("mcl_generate_ores", true) then
 			clust_scarcity = 14340,
 			clust_num_ores = 1,
 			clust_size     = 1,
-			y_min          = mcl_vars.mg_overworld_min,
+			y_min          = mcl_mapgen.overworld.min,
 			y_max          = mcl_worlds.layer_to_y(29),
 		})
 		-- Rare spawn
@@ -678,7 +678,7 @@ local function register_mgv6_decorations()
 			persist = 0.6
 		},
 		y_min = 4,
-		y_max = mcl_vars.mg_overworld_max,
+		y_max = mcl_mapgen.overworld.max,
 		decoration = "mcl_core:cactus",
 		height = 1,
 		height_max = 3,
@@ -698,7 +698,7 @@ local function register_mgv6_decorations()
 			persist = 0.7
 		},
 		y_min = 1,
-		y_max = mcl_vars.mg_overworld_max,
+		y_max = mcl_mapgen.overworld.max,
 		decoration = "mcl_core:reeds",
 		height = 1,
 		height_max = 3,
@@ -728,7 +728,7 @@ local function register_mgv6_decorations()
 			persist = 0.0,
 		},
 		y_min = 1,
-		y_max = mcl_vars.mg_overworld_max,
+		y_max = mcl_mapgen.overworld.max,
 	})
 
 	-- Large ferns
@@ -757,7 +757,7 @@ local function register_mgv6_decorations()
 			persist = 0.66,
 		},
 		y_min = 1,
-		y_max = mcl_vars.mg_overworld_max,
+		y_max = mcl_mapgen.overworld.max,
 	})
 
 	-- Large flowers
@@ -1006,7 +1006,7 @@ local function register_mgv6_decorations()
 			persist = 0.666
 		},
 		flags = "force_placement",
-		y_min = mcl_vars.mg_lava_overworld_max + 5,
+		y_min = mcl_mapgen.overworld.lava_max + 5,
 		y_max = -20,
 	})
 
@@ -1038,7 +1038,7 @@ local function register_mgv6_decorations()
 				persist = 0.6
 			},
 			y_min = 1,
-			y_max = mcl_vars.mg_overworld_max,
+			y_max = mcl_mapgen.overworld.max,
 			decoration = mushrooms[m],
 			spawn_by = { "mcl_core:tree", "mcl_core:sprucetree", "mcl_core:darktree", "mcl_core:birchtree", },
 			num_spawn_by = 1,
@@ -1059,7 +1059,7 @@ local function register_mgv6_decorations()
 			persist = 0.6
 		},
 		y_min = 4,
-		y_max = mcl_vars.mg_overworld_max,
+		y_max = mcl_mapgen.overworld.max,
 		decoration = "mcl_core:deadbush",
 	})
 
@@ -1068,7 +1068,7 @@ local function register_mgv6_decorations()
 			offset = 0
 		end
 		if y_max == nil then
-			y_max = mcl_vars.mg_overworld_max
+			y_max = mcl_mapgen.overworld.max
 		end
 		minetest.register_decoration({
 			deco_type = "simple",
@@ -1111,7 +1111,7 @@ local function register_mgv6_decorations()
 		sidelen = 16,
 		fill_ratio = 11.0, -- complete coverage
 		y_min = 1,
-		y_max = mcl_vars.mg_overworld_max,
+		y_max = mcl_mapgen.overworld.max,
 		decoration = "mcl_core:snow",
 	})
 
@@ -1719,7 +1719,7 @@ local generate_underground_mushrooms = function(minp, maxp, seed)
 	local pr_shroom = PseudoRandom(seed-24359)
 	-- Generate rare underground mushrooms
 	-- TODO: Make them appear in groups, use Perlin noise
-	local min, max = mcl_vars.mg_lava_overworld_max + 4, 0
+	local min, max = mcl_mapgen.overworld.lava_max + 4, 0
 	if minp.y > max or maxp.y < min then
 		return
 	end
@@ -1752,7 +1752,7 @@ end
 local generate_nether_decorations = function(minp, maxp, seed)
 	local pr_nether = PseudoRandom(seed+667)
 
-	if minp.y > mcl_vars.mg_nether_max or maxp.y < mcl_vars.mg_nether_min then
+	if minp.y > mcl_mapgen.nether.max or maxp.y < mcl_mapgen.nether.min then
 		return
 	end
 
@@ -1899,23 +1899,23 @@ local function basic(c)
 	local pr = PseudoRandom(blockseed)
 
 	-- The Void below the Nether:
-	lvm_used = set_layers(data, area, c_void         , nil, mcl_mapgen.EDGE_MIN	                     , mcl_vars.mg_nether_min                     -1, minp, maxp, lvm_used, pr)
+	lvm_used = set_layers(data, area, c_void         , nil, mcl_mapgen.EDGE_MIN	                     , mcl_mapgen.nether.min                     -1, minp, maxp, lvm_used, pr)
 
-	-- [[ THE NETHER:					mcl_vars.mg_nether_min			       mcl_vars.mg_nether_max							]]
+	-- [[ THE NETHER:					mcl_mapgen.nether.min			       mcl_mapgen.nether.max							]]
 
 	-- The Air on the Nether roof, https://git.minetest.land/MineClone2/MineClone2/issues/1186
-	lvm_used = set_layers(data, area, c_air		 , nil, mcl_vars.mg_nether_max			   +1, mcl_vars.mg_nether_max + 128                 , minp, maxp, lvm_used, pr)
+	lvm_used = set_layers(data, area, c_air		 , nil, mcl_mapgen.nether.max			   +1, mcl_mapgen.nether.max + 128                 , minp, maxp, lvm_used, pr)
 	-- The Void above the Nether below the End:
-	lvm_used = set_layers(data, area, c_void         , nil, mcl_vars.mg_nether_max + 128               +1, mcl_vars.mg_end_min                        -1, minp, maxp, lvm_used, pr)
+	lvm_used = set_layers(data, area, c_void         , nil, mcl_mapgen.nether.max + 128               +1, mcl_mapgen.end.min                        -1, minp, maxp, lvm_used, pr)
 
-	-- [[ THE END:						mcl_vars.mg_end_min			       mcl_vars.mg_end_max							]]
+	-- [[ THE END:						mcl_mapgen.end.min			       mcl_mapgen.end.max							]]
 
 	-- The Void above the End below the Realm barrier:
-	lvm_used = set_layers(data, area, c_void         , nil, mcl_vars.mg_end_max                        +1, mcl_vars.mg_realm_barrier_overworld_end_min-1, minp, maxp, lvm_used, pr)
+	lvm_used = set_layers(data, area, c_void         , nil, mcl_mapgen.end.max                        +1, mcl_vars.mg_realm_barrier_overworld_end_min-1, minp, maxp, lvm_used, pr)
 	-- Realm barrier between the Overworld void and the End
 	lvm_used = set_layers(data, area, c_realm_barrier, nil, mcl_vars.mg_realm_barrier_overworld_end_min  , mcl_vars.mg_realm_barrier_overworld_end_max  , minp, maxp, lvm_used, pr)
 	-- The Void above Realm barrier below the Overworld:
-	lvm_used = set_layers(data, area, c_void         , nil, mcl_vars.mg_realm_barrier_overworld_end_max+1, mcl_vars.mg_overworld_min                  -1, minp, maxp, lvm_used, pr)
+	lvm_used = set_layers(data, area, c_void         , nil, mcl_vars.mg_realm_barrier_overworld_end_max+1, mcl_mapgen.overworld.min                  -1, minp, maxp, lvm_used, pr)
 
 
 	if mg_name ~= "singlenode" then
@@ -1931,8 +1931,8 @@ local function basic(c)
 
 		-- Big lava seas by replacing air below a certain height
 		if mcl_vars.mg_lava then
-			lvm_used = set_layers(data, area, c_lava, c_air, mcl_vars.mg_overworld_min, mcl_vars.mg_lava_overworld_max, minp, maxp, lvm_used, pr)
+			lvm_used = set_layers(data, area, c_lava, c_air, mcl_mapgen.overworld.min, mcl_mapgen.overworld.lava_max, minp, maxp, lvm_used, pr)
-			lvm_used = set_layers(data, area, c_nether_lava, c_air, mcl_vars.mg_nether_min, mcl_vars.mg_lava_nether_max, minp, maxp, lvm_used, pr)
+			lvm_used = set_layers(data, area, c_nether_lava, c_air, mcl_mapgen.nether.min, mcl_vars.mg_lava_nether_max, minp, maxp, lvm_used, pr)
 		end
 
 		-- Clay, vines, cocoas
@@ -1948,7 +1948,7 @@ local function basic(c)
 		-- Snow and sand fixes. This code implements snow consistency
 		-- and fixes floating sand and cut plants.
 		-- A snowy grass block must be below a top snow or snow block at all times.
-		if minp.y <= mcl_vars.mg_overworld_max and maxp.y >= mcl_vars.mg_overworld_min then
+		if minp.y <= mcl_mapgen.overworld.max and maxp.y >= mcl_mapgen.overworld.min then
 			-- v6 mapgen:
 			if mg_name == "v6" then
 
@@ -2014,7 +2014,7 @@ local function basic(c)
 		-- Nether block fixes:
 		-- * Replace water with Nether lava.
 		-- * Replace stone, sand dirt in v6 so the Nether works in v6.
-		elseif emin.y <= mcl_vars.mg_nether_max and emax.y >= mcl_vars.mg_nether_min then
+		elseif emin.y <= mcl_mapgen.nether.max and emax.y >= mcl_mapgen.nether.min then
 			if mg_name == "v6" then
 				local nodes = minetest.find_nodes_in_area(emin, emax, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"})
 				for n=1, #nodes do
@@ -2041,7 +2041,7 @@ local function basic(c)
 		-- * Replace water with end stone or air (depending on height).
 		-- * Remove stone, sand, dirt in v6 so our End map generator works in v6.
 		-- * Generate spawn platform (End portal destination)
-		elseif minp.y <= mcl_vars.mg_end_max and maxp.y >= mcl_vars.mg_end_min then
+		elseif minp.y <= mcl_mapgen.end.max and maxp.y >= mcl_mapgen.end.min then
 			local nodes
 			if mg_name == "v6" then
 				nodes = minetest.find_nodes_in_area(emin, emax, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"})
@@ -2083,11 +2083,11 @@ local function basic(c)
 	-- Final hackery: Set sun light level in the End.
 	-- -26912 is at a mapchunk border.
 	local shadow = true
-	if minp.y >= -26912 and maxp.y <= mcl_vars.mg_end_max then
+	if minp.y >= -26912 and maxp.y <= mcl_mapgen.end.max then
 		vm:set_lighting({day=15, night=15})
 		lvm_used = true
 	end
-	if minp.y >= mcl_vars.mg_end_min and maxp.y <= -26911 then
+	if minp.y >= mcl_mapgen.end.min and maxp.y <= -26911 then
 		shadow = false
 		lvm_used = true
 	end

mods/MAPGEN/mcl_structures/init.lua

@@ -110,14 +110,14 @@ mcl_structures.generate_igloo = function(pos, rotation, pr)
 	if r == 1 then
 		-- Select basement depth
 		local dim = mcl_worlds.pos_to_dimension(pos)
-		--local buffer = pos.y - (mcl_vars.mg_lava_overworld_max + 10)
+		--local buffer = pos.y - (mcl_mapgen.overworld.lava_max + 10)
 		local buffer
 		if dim == "nether" then
 			buffer = pos.y - (mcl_vars.mg_lava_nether_max + 10)
 		elseif dim == "end" then
 			buffer = pos.y - (mcl_vars.mg_end_min + 1)
 		elseif dim == "overworld" then
-			buffer = pos.y - (mcl_vars.mg_lava_overworld_max + 10)
+			buffer = pos.y - (mcl_mapgen.overworld.lava_max + 10)
 		else
 			return success
 		end
@@ -277,7 +277,7 @@ local function hut_placement_callback(p1, p2, size, orientation, pr)
 	if not p1 or not p2 then return end
 	local legs = minetest.find_nodes_in_area(p1, p2, "mcl_core:tree")
 	for i = 1, #legs do
-		while minetest.get_item_group(mcl_vars.get_node({x=legs[i].x, y=legs[i].y-1, z=legs[i].z}, true, 333333).name, "water") ~= 0 do
+		while minetest.get_item_group(mcl_mapgen.get_far_node({x=legs[i].x, y=legs[i].y-1, z=legs[i].z}, true, 333333).name, "water") ~= 0 do
 			legs[i].y = legs[i].y - 1
 			minetest.swap_node(legs[i], {name = "mcl_core:tree", param2 = 2})
 		end

mods/MAPGEN/mcl_villages/buildings.lua

@@ -88,7 +88,7 @@ function settlements.create_site_plan(maxp, minp, pr)
 	-- find center_surface of chunk
 	local center_surface , surface_material = settlements.find_surface(center, true)
 	local chunks = {}
-	chunks[mcl_vars.get_chunk_number(center)] = true
+	chunks[mcl_mapgen.get_chunk_number(center)] = true
 
 	-- go build settlement around center
 	if not center_surface then return false end
@@ -124,7 +124,7 @@ function settlements.create_site_plan(maxp, minp, pr)
 			ptx = settlements.round(ptx, 0)
 			ptz = settlements.round(ptz, 0)
 			local pos1 = { x=ptx, y=center_surface.y+50, z=ptz}
-			local chunk_number = mcl_vars.get_chunk_number(pos1)
+			local chunk_number = mcl_mapgen.get_chunk_number(pos1)
 			local pos_surface, surface_material
 			if chunks[chunk_number] then
 				pos_surface, surface_material = settlements.find_surface(pos1)

mods/MAPGEN/mcl_villages/utils.lua

@@ -1,4 +1,4 @@
-local get_node = mcl_vars.get_node
+local get_node = mcl_mapgen.get_far_node
 
 -------------------------------------------------------------------------------
 -- function to copy tables

mods/MAPGEN/tsm_railcorridors/init.lua

@@ -94,7 +94,7 @@ end
 -- Max. and min. heights between rail corridors are generated
 local height_min
 if mcl_vars.mg_lava then
-	height_min = mcl_vars.mg_lava_overworld_max + 2
+	height_min = mcl_mapgen.overworld.lava_max + 2
 else
 	height_min = mcl_vars.mg_bedrock_overworld_max + 2
 end