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3D noise for XL scale realm web structure

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paramat 2014-09-21 10:56:10 +01:00
parent e81927ece8
commit 4a8484a54e
3 changed files with 26 additions and 11 deletions
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2
README.txt
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@ -1,4 +1,4 @@
fracture 0.1.7 by paramat
fracture 0.2.0 by paramat
For latest stable Minetest back to 0.4.8
Depends default
Licenses: code WTFPL

2
functions.lua
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@ -123,7 +123,7 @@ end
-- Singlenode option
local SINGLENODE = true
local SINGLENODE = false
if SINGLENODE then
minetest.register_on_mapgen_init(function(mgparams)

33
init.lua
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@ -1,28 +1,41 @@
-- fracture 0.1.7 by paramat
-- fracture 0.2.0 by paramat
-- For latest stable Minetest and back to 0.4.8
-- Depends default
-- License: code WTFPL
-- use LVM for 'ungen' check, scanning chunk below
-- 3D realm noise for xl scale web realm structure
-- TODO
-- vary tree, grass, flower density
-- integrate water pools
-- Parameters
local YMIN = -33000 -- Set to -33000 when using singlenode option
local YMIN = -32 -- Set to -33000 when using singlenode option
local YMAX = 33000
local DENOFF = -0.4 -- Density offset, -2 to 2, 0 = equal volumes of air and floatland
local TSTONE = 0.02 -- Stone density threshold, controls average depth of dirt
local TVOID = 0.4 -- Central void threshold, controls size
local TFIS = 0.02 -- Fissure threshold, controls width
local ORECHA = 1 / 5 ^ 3 -- Ore chance per stone node
local BLEND = 0.02 -- Controls biome blend distance
local PINCHA = 1 / 11 ^ 2 -- Pine chance per surface node
local APPCHA = 1 / 11 ^ 2 -- Appletree
local PINCHA = 1 / 13 ^ 2 -- Pine chance per surface node
local APPCHA = 1 / 13 ^ 2 -- Appletree
local CACCHA = 1 / 61 ^ 2 -- Cactus
local FLOCHA = 1 / 23 ^ 2 -- Random flower
local GRACHA = 1 / 6 ^ 2 -- Grass_5
local DRYCHA = 1 / 47 ^ 2 -- Dry shrub
-- 3D noise for realm
local np_realm = {
offset = 0,
scale = 1,
spread = {x=4096, y=4096, z=4096},
seed = 98320,
octaves = 3,
persist = 0.4
}
-- 3D noise for terrain
local np_terrain = {
@ -34,12 +47,12 @@ local np_terrain = {
persist = 0.67
}
-- 3D noise for alt terrain
-- 3D noise for alt terrain in golden ratio
local np_terralt = {
offset = 0,
scale = 1,
spread = {x=237, y=79, z=237},
spread = {x=621, y=207, z=621},
seed = 593,
octaves = 5,
persist = 0.67
@ -131,6 +144,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
local nvals_terrain = minetest.get_perlin_map(np_terrain, chulens):get3dMap_flat(minposxyz)
local nvals_terralt = minetest.get_perlin_map(np_terralt, chulens):get3dMap_flat(minposxyz)
local nvals_realm = minetest.get_perlin_map(np_realm, chulens):get3dMap_flat(minposxyz)
local nvals_fissure = minetest.get_perlin_map(np_fissure, chulens):get3dMap_flat(minposxyz)
local nvals_biome = minetest.get_perlin_map(np_biome, chulens):get3dMap_flat(minposxyz)
local nvals_cloud = minetest.get_perlin_map(np_cloud, chulens):get3dMap_flat(minposxyz)
@ -151,7 +165,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
local n_terrain = nvals_terrain[nixyz]
local n_terralt = nvals_terralt[nixyz]
local density = (n_terrain + n_terralt) * 0.5 + DENOFF
local n_realm = nvals_realm[nixyz]
local density = (n_terrain + n_terralt) * 0.5 - math.abs(n_realm) * 3
local n_biome = nvals_biome[nixyz]
local biome = false