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Icesheet/bergs with fissures, snowblocks. Bugix: initialise under table

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paramat 2014-04-16 08:33:08 +01:00
parent 9e4bc49b28
commit aab16376e6
2 changed files with 90 additions and 50 deletions
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4
README.txt
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@ -1,5 +1,5 @@
watershed 0.3.9 by paramat watershed 0.3.10 by paramat
For latest stable Minetest back to 0.4.8 For latest stable Minetest back to 0.4.8
Depends default bucket Depends default bucket
Licenses: code WTFPL, textures CC BY-SA Licenses: code WTFPL, textures CC BY-SA
watershed:redcobble texture CC BY-SA by brunob.santos minetestbr.blogspot.com watershed:redcobble texture CC BY-SA by brunob.santos

140
init.lua
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@ -1,13 +1,13 @@
-- watershed 0.3.9 by paramat -- watershed 0.3.10 by paramat
-- For latest stable Minetest and back to 0.4.8 -- For latest stable Minetest and back to 0.4.8
-- Depends default bucket -- Depends default bucket
-- License: code WTFPL, textures CC BY-SA -- License: code WTFPL, textures CC BY-SA
-- Red cobble texture CC BY-SA by brunob.santos minetestbr.blogspot.com -- Red cobble texture CC BY-SA by brunob.santos
-- acacia, pine wood -- remove randomness from n_temp n_humid
-- vary sandline, dunes with golden grass -- bugfix: initialise under table
-- lavacooling -- TODO
-- new appletree design -- all 2 octaves to 3 octaves for better shapes
-- Parameters -- Parameters
@ -34,11 +34,11 @@ local TLAVA = 2.3 -- Maximum densitybase threshold for lava, small because grad
local FISEXP = 0.03 -- Fissure expansion rate under surface local FISEXP = 0.03 -- Fissure expansion rate under surface
local ORETHI = 0.002 -- Ore seam thickness tuner local ORETHI = 0.002 -- Ore seam thickness tuner
local SEAMT = 0.2 -- Seam threshold, width of seams local SEAMT = 0.2 -- Seam threshold, width of seams
local ICETHI = 32 -- Controls maximum ice thickness local BERGDEP = 32 -- Maximum iceberg depth
local HITET = 0.35 -- High temperature threshold local HITET = 0.35 -- High temperature threshold
local LOTET = -0.35 -- Low .. local LOTET = -0.35 -- Low ..
local ICETET = -0.7 -- Ice .. local ICETET = -0.35 -- Ice ..
local HIHUT = 0.35 -- High humidity threshold local HIHUT = 0.35 -- High humidity threshold
local LOHUT = -0.35 -- Low .. local LOHUT = -0.35 -- Low ..
local BLEND = 0.03 -- Biome blend randomness local BLEND = 0.03 -- Biome blend randomness
@ -271,8 +271,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
local n_rough = nvals_rough[nixyz] -- noise values for node local n_rough = nvals_rough[nixyz] -- noise values for node
local n_smooth = nvals_smooth[nixyz] local n_smooth = nvals_smooth[nixyz]
local n_fissure = nvals_fissure[nixyz] local n_fissure = nvals_fissure[nixyz]
local n_temp = nvals_temp[nixyz] + (math.random() - 0.5) * BLEND local n_temp = nvals_temp[nixyz]
local n_humid = nvals_humid[nixyz] + (math.random() - 0.5) * BLEND local n_humid = nvals_humid[nixyz]
local n_seam = nvals_seam[nixyz] local n_seam = nvals_seam[nixyz]
local n_strata = nvals_strata[nixyz] local n_strata = nvals_strata[nixyz]
@ -288,51 +288,29 @@ minetest.register_on_generated(function(minp, maxp, seed)
local triv = TRIV * (1 - terblen) -- other values local triv = TRIV * (1 - terblen) -- other values
local tsand = TSAND * (1 - terblen) local tsand = TSAND * (1 - terblen)
local tstone = TSTONE * (1 + grad * 0.5) local tstone = math.max(TSTONE * (1 + grad * 0.5), 0)
local tlava = TLAVA * (1 - n_magma ^ 4 * terblen ^ 16 * 0.5) local tlava = TLAVA * (1 - n_magma ^ 4 * terblen ^ 16 * 0.5)
local ysand = YSAV + n_fissure * SAMP + math.random() * 2 local ysand = YSAV + n_fissure * SAMP + math.random() * 2
local bergdep = math.abs(n_magma) * BERGDEP
local nofis = false -- set fissure bool local nofis = false -- set fissure bool
if math.abs(n_fissure) > math.sqrt(density) * FISEXP then if math.abs(n_fissure) > math.sqrt(density) * FISEXP then
nofis = true nofis = true
end end
-- overgeneration and in-chunk generation
if y == y0 - 1 then -- node layer below chunk
if ungen then
if density >= 0 then -- if node solid
stable[si] = 2
else
stable[si] = 0
end
else -- scan top layer of chunk below
local nodename = minetest.get_node({x=x,y=y,z=z}).name
if nodename == "watershed:stone"
or nodename == "watershed:redstone"
or nodename == "watershed:dirt"
or nodename == "watershed:permafrost"
or nodename == "default:sandstone"
or nodename == "default:sand"
or nodename == "default:desert_sand"
or nodename == "default:gravel" then
stable[si] = 2
else
stable[si] = 0
end
end
elseif y >= y0 and y <= y1 then -- chunk
local biome = false -- select biome for node local biome = false -- select biome for node
if n_temp < LOTET then if n_temp < LOTET + (math.random() - 0.5) * BLEND then
if n_humid < LOHUT then if n_humid < LOHUT + (math.random() - 0.5) * BLEND then
biome = 1 -- tundra biome = 1 -- tundra
elseif n_humid > HIHUT then elseif n_humid > HIHUT + (math.random() - 0.5) * BLEND then
biome = 3 -- taiga biome = 3 -- taiga
else else
biome = 2 -- snowy plains biome = 2 -- snowy plains
end end
elseif n_temp > HITET then elseif n_temp > HITET + (math.random() - 0.5) * BLEND then
if n_humid < LOHUT then if n_humid < LOHUT + (math.random() - 0.5) * BLEND then
biome = 7 -- desert biome = 7 -- desert
elseif n_humid > HIHUT then elseif n_humid > HIHUT + (math.random() - 0.5) * BLEND then
biome = 9 -- rainforest biome = 9 -- rainforest
else else
biome = 8 -- savanna biome = 8 -- savanna
@ -346,6 +324,65 @@ minetest.register_on_generated(function(minp, maxp, seed)
biome = 5 -- grassland biome = 5 -- grassland
end end
end end
-- overgeneration and in-chunk generation
if y == y0 - 1 then -- node layer below chunk
-- set stable table
if ungen then
if nofis and density >= 0 then -- if node solid
stable[si] = 2
else
stable[si] = 0
end
else -- scan top layer of chunk below
local nodename = minetest.get_node({x=x,y=y,z=z}).name
if nodename == "watershed:stone"
or nodename == "watershed:redstone"
or nodename == "watershed:dirt"
or nodename == "watershed:permafrost"
or nodename == "watershed:luxoreoff"
or nodename == "default:sand"
or nodename == "default:desert_sand"
or nodename == "default:mese"
or nodename == "default:stone_with_diamond"
or nodename == "default:stone_with_gold"
or nodename == "default:stone_with_copper"
or nodename == "default:stone_with_iron"
or nodename == "default:stone_with_coal"
or nodename == "default:sandstone"
or nodename == "default:gravel"
or nodename == "default:clay"
or nodename == "default:obsidian" then
stable[si] = 2
else
stable[si] = 0
end
end
-- set under table
if nofis and density >= 0 and density < tstone then -- if fine materials
if biome == 1 then
under[si] = 1
elseif biome == 2 then
under[si] = 2
elseif biome == 3 then
under[si] = 3
elseif biome == 4 then
under[si] = 4
elseif biome == 5 then
under[si] = 5
elseif biome == 6 then
under[si] = 6
elseif biome == 7 then
under[si] = 7
elseif biome == 8 then
under[si] = 8
elseif biome == 9 then
under[si] = 9
end
else
under[si] = 0
end
elseif y >= y0 and y <= y1 then -- chunk
-- add nodes and flora -- add nodes and flora
if densitybase >= tlava then -- lava if densitybase >= tlava then -- lava
if densitybase >= 0 then if densitybase >= 0 then
@ -450,15 +487,16 @@ minetest.register_on_generated(function(minp, maxp, seed)
stable[si] = 0 stable[si] = 0
under[si] = 0 under[si] = 0
end end
elseif y <= YWAT and density < tstone then -- sea water, not in fissures elseif y >= YWAT - bergdep and y <= YWAT + bergdep / 8 and n_temp < ICETET -- iceberg
if n_temp < ICETET and y >= YWAT - (ICETET - n_temp) * ICETHI then and density < tstone and math.abs(n_fissure) > 0.01 then
data[vi] = c_ice data[vi] = c_ice
else under[si] = 12
data[vi] = c_water
end
stable[si] = 0 stable[si] = 0
elseif y <= YWAT and density < tstone then -- sea water
data[vi] = c_water
under[si] = 0 under[si] = 0
elseif densitybase >= triv and density < tstone then -- river water, not in fissures stable[si] = 0
elseif densitybase >= triv and density < tstone then -- river water not in fissures
if n_temp < ICETET then if n_temp < ICETET then
data[vi] = c_wsfreshice data[vi] = c_wsfreshice
else else
@ -477,7 +515,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
stable[si] = 0 stable[si] = 0
under[si] = 0 under[si] = 0
else -- possible above surface air node else -- possible above surface air node
if y >= YWAT and under[si] ~= 0 then if y > YWAT and under[si] ~= 0 then
local fnoise = n_fissure -- noise for flower colours local fnoise = n_fissure -- noise for flower colours
if under[si] == 1 then if under[si] == 1 then
if math.random(121) == 2 then if math.random(121) == 2 then
@ -553,15 +591,17 @@ minetest.register_on_generated(function(minp, maxp, seed)
data[vi] = c_jungrass data[vi] = c_jungrass
end end
end end
elseif under[si] == 10 then elseif under[si] == 10 then -- dunes
if math.random(DUGCHA) == 2 and y > YSAV if math.random(DUGCHA) == 2 and y > YSAV
and biome >= 4 then and biome >= 4 then
data[vi] = c_wsgoldengrass data[vi] = c_wsgoldengrass
end end
elseif under[si] == 11 and n_temp > HITET then elseif under[si] == 11 and n_temp > HITET then -- riverbank
if math.random(PAPCHA) == 2 then if math.random(PAPCHA) == 2 then
watershed_papyrus(x, y, z, area, data) watershed_papyrus(x, y, z, area, data)
end end
elseif under[si] == 12 then -- iceberg
data[vi] = c_snowblock
end end
end end
stable[si] = 0 stable[si] = 0