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Bugfix spawn function. 2 iron ore layers per 512n

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This commit is contained in:
paramat
2014-04-17 14:16:51 +01:00
parent d2d8c88571
commit ba596b269f
2 changed files with 33 additions and 32 deletions
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6
functions.lua
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@@ -226,7 +226,7 @@ if SINGLENODE then
function spawnplayer(player)
local TERCEN = -160 -- Terrain 'centre', average seabed level
local TERSCA = 512 -- Vertical terrain scale
local ATANAMP = 1.2 -- Arctan function amplitude, smaller = more and larger floatlands above ridges
local ATANAMP = 1.1 -- Arctan function amplitude, smaller = more and larger floatlands above ridges
local XLSAMP = 0.2 -- Extra large scale height variation amplitude
local BASAMP = 0.4 -- Base terrain amplitude
local CANAMP = 0.4 -- Canyon terrain amplitude
@@ -248,7 +248,7 @@ if SINGLENODE then
spread = {x=512, y=512, z=512},
seed = 593,
octaves = 6,
persist = 0.4
persist = 0.33
}
local np_base = {
offset = 0,
@@ -256,7 +256,7 @@ if SINGLENODE then
spread = {x=4096, y=4096, z=4096},
seed = 8890,
octaves = 4,
persist = 0.4
persist = 0.33
}
local np_xlscale = {
offset = 0,

59
init.lua
View File

@@ -4,10 +4,8 @@
-- License: code WTFPL, textures CC BY-SA
-- Red cobble texture CC BY-SA by brunob.santos
-- terrain and biome noise changes
-- bugfix: under table set to 0
-- bugfix: reset icetet value
-- more floatlands, spikier mountains
-- bugfix spawn function
-- 2 iron ore layers
-- Parameters
@@ -191,10 +189,10 @@ minetest.register_on_generated(function(minp, maxp, seed)
print ("[watershed] chunk minp ("..x0.." "..y0.." "..z0..")")
-- voxelmanip stuff
local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
local data = vm:get_data()
local vm, emin, emax = minetest.get_mapgen_object("voxelmanip") -- min, max points for emerged area/voxelarea
local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax} -- voxelarea helper for indexes
local data = vm:get_data() -- get flat array of voxelarea content ids
-- content ids
local c_air = minetest.get_content_id("air")
local c_water = minetest.get_content_id("default:water_source")
local c_sand = minetest.get_content_id("default:sand")
@@ -235,11 +233,11 @@ minetest.register_on_generated(function(minp, maxp, seed)
local c_wscloud = minetest.get_content_id("watershed:cloud")
local c_wsluxoreoff = minetest.get_content_id("watershed:luxoreoff")
-- perlinmap stuff
local sidelen = x1 - x0 + 1
local chulens = {x=sidelen, y=sidelen+2, z=sidelen}
local minposxyz = {x=x0, y=y0-1, z=z0}
local sidelen = x1 - x0 + 1 -- chunk sidelength
local chulens = {x=sidelen, y=sidelen+2, z=sidelen} -- chunk dimensions, '+2' for overgeneration
local minposxyz = {x=x0, y=y0-1, z=z0} -- 3D and 2D perlinmaps start from these co-ordinates, '-1' for overgeneration
local minposxz = {x=x0, y=z0}
-- 3D and 2D perlinmaps
local nvals_rough = minetest.get_perlin_map(np_rough, chulens):get3dMap_flat(minposxyz)
local nvals_smooth = minetest.get_perlin_map(np_smooth, chulens):get3dMap_flat(minposxyz)
local nvals_fissure = minetest.get_perlin_map(np_fissure, chulens):get3dMap_flat(minposxyz)
@@ -257,18 +255,18 @@ minetest.register_on_generated(function(minp, maxp, seed)
ungen = true
end
-- mapgen loop
local nixyz = 1
local nixyz = 1 -- 3D and 2D perlinmap indexes
local nixz = 1
local stable = {} -- stability table of true/false. is node supported from below by 2 stone or nodes on 2 stone?
local under = {} -- biome table. biome number of previous fine material placed in column
for z = z0, z1 do -- for each xy plane progressing northwards
for y = y0 - 1, y1 + 1 do -- for each x row progressing upwards
local vi = area:index(x0, y, z)
local viu = area:index(x0, y-1, z)
local vi = area:index(x0, y, z) -- voxelmanip index for first node in this x row
local viu = area:index(x0, y-1, z) -- index for under node
for x = x0, x1 do -- for each node do
local si = x - x0 + 1 -- stable, under tables index
local n_rough = nvals_rough[nixyz] -- noise values for node
-- noise values for node
local n_rough = nvals_rough[nixyz]
local n_smooth = nvals_smooth[nixyz]
local n_fissure = nvals_fissure[nixyz]
local n_temp = nvals_temp[nixyz]
@@ -281,17 +279,17 @@ minetest.register_on_generated(function(minp, maxp, seed)
local n_magma = nvals_magma[nixz]
-- 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 densitybase = (1 - math.abs(n_base)) * BASAMP + n_xlscale * XLSAMP + grad -- base terrain
local terblen = math.max(1 - math.abs(n_base), 0) -- canyon terrain blend of rough and smooth
local density = densitybase
+ 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)
local tstone = TSTONE * (1 + grad * 0.5)
local tlava = TLAVA * (1 - n_magma ^ 4 * terblen ^ 16 * 0.5)
local ysand = YSAV + n_fissure * SAMP + math.random() * 2
local bergdep = math.abs(n_seam) * BERGDEP
-- other values
local triv = TRIV * (1 - terblen) -- river threshold
local tsand = TSAND * (1 - terblen) -- sand threshold
local tstone = TSTONE * (1 + grad * 0.5) -- stone threshold
local tlava = TLAVA * (1 - n_magma ^ 4 * terblen ^ 16 * 0.5) -- lava threshold
local ysand = YSAV + n_fissure * SAMP + math.random() * 2 -- sandline
local bergdep = math.abs(n_seam) * BERGDEP -- iceberg depth
local nofis = false -- set fissure bool
if math.abs(n_fissure) > math.sqrt(density) * FISEXP then
@@ -385,8 +383,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
data[vi] = c_sandstone
elseif biome == 7 and density < TSTONE * 4 then -- desert stone as surface layer
data[vi] = c_wsredstone
elseif math.abs(n_seam) < SEAMT then -- if seam
if densityper >= 0 and densityper <= ORETHI * 4 then
elseif math.abs(n_seam) < SEAMT then
if densityper >= 0 and densityper <= ORETHI * 4 then -- ore seams
data[vi] = c_stocoal
elseif densityper >= 0.3 and densityper <= 0.3 + ORETHI * 4 then
data[vi] = c_stocoal
@@ -399,6 +397,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
elseif densityper >= 0.1 and densityper <= 0.1 + ORETHI * 2 then
data[vi] = c_wsluxoreoff
elseif densityper >= 0.2 and densityper <= 0.2 + ORETHI * 2
and math.random(2) == 2 then
data[vi] = c_stoiron
elseif densityper >= 0.65 and densityper <= 0.65 + ORETHI * 2
and math.random(2) == 2 then
data[vi] = c_stoiron
elseif densityper >= 0.4 and densityper <= 0.4 + ORETHI * 2
@@ -610,7 +611,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
end
end
end
nixyz = nixyz + 1
nixyz = nixyz + 1 -- increment perlinmap and voxelarea indexes along x row
nixz = nixz + 1
vi = vi + 1
viu = viu + 1