mtcontrib/watershed
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acaciatree, pinetree nodes. bugix spawn function. biome blend

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paramat
2014-04-14 06:01:05 +01:00
parent b1f138c74c
commit 903acd2ae0
9 changed files with 56 additions and 68 deletions
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35
init.lua
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@ -1,12 +1,16 @@
-- watershed 0.3.7 by paramat
-- watershed 0.3.8 by paramat
-- For latest stable Minetest and back to 0.4.8
-- Depends default bucket
-- License: code WTFPL, textures CC BY-SA
-- Red cobble texture CC BY-SA by brunob.santos minetestbr.blogspot.com
-- thicker layer of redstone in deserts
-- ice thicker with lower temperature
-- papyrus on riverbank not beach
-- pine, acacia tree trunks
-- bugfix spawning function
-- temperature / humidity randomness for biome blend
-- TODO
-- pine wood
-- acacia wood
-- better appletree design with branches
-- Parameters
@ -28,7 +32,7 @@ local TSTONE = 0.02 -- Density threshold for stone, depth of soil at TERCEN
local TRIV = -0.02 -- Maximum densitybase threshold for river water
local TSAND = -0.025 -- Maximum densitybase threshold for river sand
local TLAVA = 2.3 -- Maximum densitybase threshold for lava, small because grad is non-linear
local FISEXP = 0.02 -- Fissure expansion rate under surface
local FISEXP = 0.03 -- Fissure expansion rate under surface
local ORETHI = 0.002 -- Ore seam thickness tuner
local SEAMT = 0.2 -- Seam threshold, width of seams
local ICETHI = 32 -- Controls maximum ice thickness
@ -38,19 +42,20 @@ local LOTET = -0.35 -- Low ..
local ICETET = -0.7 -- Ice ..
local HIHUT = 0.35 -- High humidity threshold
local LOHUT = -0.35 -- Low ..
local BLEND = 0.03 -- Biome blend randomness
local PINCHA = 36 -- Pine tree 1/x chance per node
local APTCHA = 36 -- Appletree
local FLOCHA = 36 -- Flower
local FOGCHA = 9 -- Forest grass
local GRACHA = 3 -- Grassland grasses
local GRACHA = 4 -- Grassland grasses
local JUTCHA = 16 -- Jungletree
local JUGCHA = 9 -- Junglegrass
local CACCHA = 841 -- Cactus
local DRYCHA = 169 -- Dry shrub
local PAPCHA = 2 -- Papyrus
local ACACHA = 529 -- Acacia tree
local GOGCHA = 3 -- Golden grass
local GOGCHA = 4 -- Golden grass
-- 3D noise for rough terrain
@ -70,7 +75,7 @@ local np_smooth = {
scale = 1,
spread = {x=512, y=512, z=512},
seed = 593,
octaves = 5,
octaves = 6,
persist = 0.4
}
@ -266,20 +271,20 @@ minetest.register_on_generated(function(minp, maxp, seed)
local n_rough = nvals_rough[nixyz] -- noise values for node
local n_smooth = nvals_smooth[nixyz]
local n_fissure = nvals_fissure[nixyz]
local n_temp = nvals_temp[nixyz]
local n_humid = nvals_humid[nixyz]
local n_temp = nvals_temp[nixyz] + (math.random() - 0.5) * BLEND
local n_humid = nvals_humid[nixyz] + (math.random() - 0.5) * BLEND
local n_seam = nvals_seam[nixyz]
local n_strata = nvals_strata[nixyz]
local n_base = nvals_base[nixz]
local n_xlscale = nvals_xlscale[nixz]
local n_magma = nvals_magma[nixz]
local grad = math.atan((TERCEN - y) / TERSCA) * ATANAMP -- get densitybase and density
local densitybase = (1 - math.abs(n_base)) * BASAMP + n_xlscale * XLSAMP + grad
local terblen = math.max(1 - math.abs(n_base), 0)
-- get densitybase and density
local grad = math.atan((TERCEN - y) / TERSCA) * ATANAMP -- vertical density gradient
local densitybase = (1 - math.abs(n_base)) * BASAMP + n_xlscale * XLSAMP + grad -- base terrain or ridge networks
local terblen = math.max(1 - math.abs(n_base), 0) -- terrain blend rough and smooth
local density = densitybase
+ math.abs(n_rough * terblen + n_smooth * (1 - terblen)) ^ CANEXP * CANAMP
+ math.abs(n_rough * terblen + n_smooth * (1 - terblen)) ^ CANEXP * CANAMP -- add canyon terrain
local triv = TRIV * (1 - terblen) -- other values
local tsand = TSAND * (1 - terblen)