mirror of
https://github.com/paramat/watershed.git
synced 2025-07-22 02:00:36 +02:00
Fresh ice, red cobble, redo clouds with existing noises
This commit is contained in:
paramat
81
init.lua
81
init.lua
@ -1,7 +1,13 @@
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-- watershed 0.3.5 by paramat
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-- watershed 0.3.6 by paramat
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-- For latest stable Minetest and back to 0.4.8
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-- Depends default bucket
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-- License: code WTFPL
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-- License: code WTFPL, textures CC BY-SA
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-- Red cobble texture CC BY-SA by brunob.santos minetestbr.blogspot.com
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-- added turquoise fresh ice node
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-- bugfix: stone drops default:cobble
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-- add red cobble, texture by brunob.santos
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-- redo clouds using fissure and humid noises, new texture
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-- Parameters
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@ -9,8 +15,8 @@ local YMIN = -33000 -- Approximate base of realm stone
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local YMAX = 33000 -- Approximate top of atmosphere / mountains / floatlands
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local TERCEN = -160 -- Terrain 'centre', average seabed level
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local YWAT = 1 -- Sea surface y
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local YCLOUD = 256 -- Cloud level
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local CLOUDS = true
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local YCLOMIN = 287 -- Minimum height of mod clouds
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local CLOUDS = true -- Mod clouds?
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local TERSCA = 512 -- Vertical terrain scale
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local XLSAMP = 0.2 -- Extra large scale height variation amplitude
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@ -26,15 +32,13 @@ local TLAVA = 2.3 -- Maximum densitybase threshold for lava, small because grad
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local FIST = 0 -- Fissure threshold at surface, controls size of fissure entrances at surface
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local FISEXP = 0.02 -- Fissure expansion rate under surface
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local ORETHI = 0.001 -- Ore seam thickness tuner
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local ORET = 0.02 -- Ore threshold for seam
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local TCLOUD = 0.5 -- Cloud threshold
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local SEAMT = 0.02 -- Seam threshold
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local HITET = 0.35 -- High temperature threshold
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local LOTET = -0.35 -- Low ..
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local ICETET = -0.7 -- Ice ..
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local HIHUT = 0.35 -- High humidity threshold
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local LOHUT = -0.35 -- Low ..
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local CLOHUT = 0.35 -- Cloud humidity threshold
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local PINCHA = 36 -- Pine tree 1/x chance per node
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local APTCHA = 36 -- Appletree
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@ -115,9 +119,9 @@ local np_humid = {
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persist = 0.5
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}
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-- 3D noise for ore seams
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-- 3D noise for ore seam networks
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local np_ore = {
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local np_seam = {
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offset = 0,
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scale = 1,
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spread = {x=512, y=128, z=512},
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@ -126,7 +130,7 @@ local np_ore = {
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persist = 0.5
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}
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-- 3D noise for rock strata
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-- 3D noise for rock strata inclination
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local np_strata = {
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offset = 0,
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@ -159,17 +163,6 @@ local np_xlscale = {
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persist = 0.4
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}
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-- 2D noise for clouds
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local np_cloud = {
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offset = 0,
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scale = 1,
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spread = {x=207, y=207, z=207},
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seed = 2113,
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octaves = 4,
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persist = 0.7
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}
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-- 2D noise for magma surface
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local np_magma = {
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@ -236,16 +229,17 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local c_grass5 = minetest.get_content_id("default:grass_5")
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local c_obsidian = minetest.get_content_id("default:obsidian")
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local c_wswater = minetest.get_content_id("watershed:water")
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local c_wsfreshwater = minetest.get_content_id("watershed:freshwater")
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local c_wsstone = minetest.get_content_id("watershed:stone")
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local c_wsredstone = minetest.get_content_id("watershed:redstone")
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local c_wsgrass = minetest.get_content_id("watershed:grass")
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local c_wsdrygrass = minetest.get_content_id("watershed:drygrass")
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local c_wsgoldgrass = minetest.get_content_id("watershed:goldengrass")
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local c_wsgoldengrass = minetest.get_content_id("watershed:goldengrass")
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local c_wsdirt = minetest.get_content_id("watershed:dirt")
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local c_wscloud = minetest.get_content_id("watershed:cloud")
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local c_wspermafrost = minetest.get_content_id("watershed:permafrost")
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local c_wslava = minetest.get_content_id("watershed:lava")
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local c_wsfreshice = minetest.get_content_id("watershed:freshice")
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local c_wscloud = minetest.get_content_id("watershed:cloud")
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-- perlinmap stuff
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local sidelen = x1 - x0 + 1
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local chulens = {x=sidelen, y=sidelen+2, z=sidelen}
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@ -258,12 +252,11 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local nvals_fissure = minetest.get_perlin_map(np_fissure, chulens):get3dMap_flat(minposxyz)
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local nvals_temp = minetest.get_perlin_map(np_temp, chulens):get3dMap_flat(minposxyz)
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local nvals_humid = minetest.get_perlin_map(np_humid, chulens):get3dMap_flat(minposxyz)
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local nvals_ore = minetest.get_perlin_map(np_ore, chulens):get3dMap_flat(minposxyz)
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local nvals_seam = minetest.get_perlin_map(np_seam, chulens):get3dMap_flat(minposxyz)
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local nvals_strata = minetest.get_perlin_map(np_strata, chulens):get3dMap_flat(minposxyz)
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local nvals_base = minetest.get_perlin_map(np_base, chulens):get2dMap_flat(minposxz)
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local nvals_xlscale = minetest.get_perlin_map(np_xlscale, chulens):get2dMap_flat(minposxz)
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local nvals_cloud = minetest.get_perlin_map(np_cloud, chulens):get2dMap_flat(minposxz)
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local nvals_magma = minetest.get_perlin_map(np_magma, chulens):get2dMap_flat(minposxz)
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local ungen = false -- ungenerated chunk below?
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@ -303,11 +296,10 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local tsand = TSAND * (1 - terblen)
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local tstone = TSTONE * (1 + grad * 0.5)
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local tlava = TLAVA * (1 - nvals_magma[nixz] ^ 4 * terblen ^ 16 * 0.5)
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local nofis = false
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if density >= 0 then -- if terrain set fissure flag
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if math.abs(nvals_fissure[nixyz]) > FIST + math.sqrt(density) * FISEXP then
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nofis = true
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end
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local nofis = false -- set fissure bool
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if math.abs(nvals_fissure[nixyz]) > FIST + math.sqrt(density) * FISEXP then
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nofis = true
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end
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-- overgeneration and in-chunk generation
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if y == y0 - 1 then -- node layer below chunk
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@ -317,7 +309,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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else
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stable[si] = 0
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end
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else
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else -- scan top layer of chunk below
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local nodename = minetest.get_node({x=x,y=y,z=z}).name
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if nodename == "watershed:stone"
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or nodename == "watershed:redstone"
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@ -385,7 +377,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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data[vi] = c_sandstone
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elseif biome == 7 and density < TSTONE * 3 then -- desert stone
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data[vi] = c_wsredstone
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elseif math.abs(nvals_ore[nixyz]) < ORET then -- if seam
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elseif math.abs(nvals_seam[nixyz]) < SEAMT then -- if seam
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if densityper >= 0.9 and densityper <= 0.9 + ORETHI
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and math.random(23) == 2 then
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data[vi] = c_stodiam
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@ -466,22 +458,19 @@ minetest.register_on_generated(function(minp, maxp, seed)
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under[si] = 0
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elseif densitybase >= triv and density < tstone then -- river water, not in fissures
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if n_temp < ICETET then
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data[vi] = c_ice
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data[vi] = c_wsfreshice
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else
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data[vi] = c_wswater
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data[vi] = c_wsfreshwater
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end
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stable[si] = 0
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under[si] = 0
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elseif CLOUDS and y == YCLOUD then -- clouds
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elseif CLOUDS and y == y1 and y >= YCLOMIN then -- clouds at chunk top
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local xrq = 16 * math.floor((x - x0) / 16) -- quantise to 16x16 lattice
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local zrq = 16 * math.floor((z - z0) / 16)
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local qixz = zrq * 80 + xrq + 1 -- quantised index
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if nvals_cloud[qixz] > TCLOUD then
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local yrq = 16 * math.floor((y - y0) / 16)
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local qixyz = zrq * 6400 + yrq * 80 + xrq + 1
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if nvals_humid[qixyz] > CLOHUT then
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data[vi] = c_wscloud
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end
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local yrq = 79
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local qixyz = zrq * 6400 + yrq * 80 + xrq + 1 -- quantised 3D index
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if math.abs(nvals_fissure[qixyz]) < nvals_humid[qixyz] * 0.1 then
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data[vi] = c_wscloud
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end
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stable[si] = 0
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under[si] = 0
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@ -490,7 +479,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local fnoise = nvals_fissure[nixyz]
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if under[si] == 1 then
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if math.random(121) == 2 then
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data[viu] = c_dirtsnow
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data[viu] = c_snowblock
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elseif math.random(121) == 2 then
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data[viu] = c_ice
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else
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@ -513,7 +502,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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data[viu] = c_wsdrygrass
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if math.random(GRACHA) == 2 then
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if math.random(5) == 2 then
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data[vi] = c_wsgoldgrass
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data[vi] = c_wsgoldengrass
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else
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data[vi] = c_dryshrub
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end
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@ -550,7 +539,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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else
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data[viu] = c_wsdrygrass
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if math.random(GOGCHA) == 2 then
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data[vi] = c_wsgoldgrass
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data[vi] = c_wsgoldengrass
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end
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end
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elseif under[si] == 9 then
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