Vertical overgeneration. Tune parameters. Multilayer 16x16 clouds
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paramat
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@ -1,4 +1,4 @@
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fracture 0.1.0 by paramat
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fracture 0.1.1 by paramat
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For latest stable Minetest back to 0.4.8
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Depends default
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Licenses: code WTFPL
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121
init.lua
121
init.lua
@ -1,22 +1,27 @@
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-- fracture 0.1.0 by paramat
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-- fracture 0.1.1 by paramat
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-- For latest stable Minetest and back to 0.4.8
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-- Depends default
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-- License: code WTFPL
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-- 0.1.1
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-- tune parameters
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-- vertical overgeneration
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-- 16x16 clouds
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-- Parameters
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local YMIN = -33000
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local YMAX = 33000
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local DENOFF = -0.4 -- Density offset, 0 = equal volumes of air and floatland
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local TSTONE = 0.08 -- Stone density threshold, controls average depth of stone below surface
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local DENOFF = -0.4 -- Density offset, -2 to 2, 0 = equal volumes of air and floatland
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local TSTONE = 0.05 -- Stone density threshold, controls average depth of stone below surface
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local STABLE = 2 -- Minimum number of stacked stone nodes in column required to support dirt/sand
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local BLEND = 0.04 -- Controls biome blend distance
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local BLEND = 0.03 -- Controls biome blend distance
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local PINCHA = 36 -- Pine chance 1/x chance
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local APPCHA = 36 -- Appletree 1/x chance
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local CACCHA = 841 -- Cactus 1/x chance
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local TCAC = 0.2 -- Cactus threshold, width of cactus areas
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local TFOR = 0.2 -- Forest threshold, width of forest clearings
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local TFOR = 0.2 -- Forest threshold, width of forest paths/clearings
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-- 3D noise for terrain
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@ -34,10 +39,10 @@ local np_terrain = {
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local np_biome = {
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offset = 0,
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scale = 1,
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spread = {x=512, y=512, z=512},
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spread = {x=512, y=171, z=512},
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seed = -188900,
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octaves = 3,
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persist = 0.5
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persist = 0.33
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}
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-- 3D noise for flora
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@ -51,6 +56,17 @@ local np_flora = {
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persist = 0.67
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}
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-- 3D noise for cloud noise
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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=52, y=52, z=52},
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seed = -144111,
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octaves = 2,
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persist = 1
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}
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-- Stuff
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fracture = {}
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@ -108,6 +124,20 @@ minetest.register_node("fracture:cactus", {
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on_place = minetest.rotate_node
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})
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minetest.register_node("fracture:cloud", {
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description = "Cloud",
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drawtype = "glasslike",
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tiles = {"fracture_cloud.png"},
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paramtype = "light",
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is_ground_content = false,
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sunlight_propagates = true,
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walkable = false,
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pointable = false,
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diggable = false,
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buildable_to = true,
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post_effect_color = {a=63, r=241, g=248, b=255},
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})
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-- Set mapgen parameters
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minetest.register_on_mapgen_init(function(mgparams)
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@ -136,9 +166,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local data = vm:get_data()
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local c_air = minetest.get_content_id("air")
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local c_frstone = minetest.get_content_id("fracture:stone")
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local c_frdestone = minetest.get_content_id("fracture:desertstone")
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local c_sand = minetest.get_content_id("default:sand")
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local c_stone = minetest.get_content_id("fracture:stone")
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local c_destone = minetest.get_content_id("fracture:desertstone")
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local c_cloud = minetest.get_content_id("fracture:cloud")
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local c_desand = minetest.get_content_id("default:desert_sand")
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local c_dirt = minetest.get_content_id("default:dirt")
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local c_grass = minetest.get_content_id("default:dirt_with_grass")
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@ -146,28 +176,24 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local c_snowblock = minetest.get_content_id("default:snowblock")
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local sidelen = x1 - x0 + 1
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local chulens = {x=sidelen, y=sidelen, z=sidelen}
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local minposxyz = {x=x0, y=y0, z=z0}
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local chulens = {x=sidelen, y=sidelen+2, z=sidelen}
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local minposxyz = {x=x0, y=y0-1, z=z0}
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local nvals_terrain = minetest.get_perlin_map(np_terrain, chulens):get3dMap_flat(minposxyz)
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local nvals_biome = minetest.get_perlin_map(np_biome, chulens):get3dMap_flat(minposxyz)
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local nvals_flora = minetest.get_perlin_map(np_flora, chulens):get3dMap_flat(minposxyz)
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local nvals_cloud = minetest.get_perlin_map(np_cloud, chulens):get3dMap_flat(minposxyz)
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local ungen = false
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if minetest.get_node({x=x0, y=y0-1, z=z0}).name == "ignore" then
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ungen = true
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end
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local nixyz = 1
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local stable = {}
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local under = {}
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for z = z0, z1 do
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for x = x0, x1 do
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local si = x - x0 + 1
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under[si] = 0
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local nodename = minetest.get_node({x=x,y=y0-1,z=z}).name
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if nodename == "air" then
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stable[si] = 0
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else
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stable[si] = STABLE
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end
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end
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for y = y0, y1 do
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for y = y0 - 1, y1 + 1 do
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local vi = area:index(x0, y, z)
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local viu = area:index(x0, y-1, z)
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for x = x0, x1 do
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@ -185,11 +211,34 @@ minetest.register_on_generated(function(minp, maxp, seed)
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biome = 2
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end
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if y == y0 - 1 then
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under[si] = 0
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if ungen then
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if density >= 0 then
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stable[si] = 2
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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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local nodename = minetest.get_node({x=x,y=y,z=z}).name
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if nodename == "fracture:stone"
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or nodename == "fracture:redstone"
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or nodename == "default:dirt"
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or nodename == "default:dirt_with_grass"
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or nodename == "default:dirt_with_snow"
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or nodename == "default:snowblock"
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or nodename == "default:desert_sand" then
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stable[si] = 2
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else
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stable[si] = 0
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end
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end
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elseif y >= y0 and y <= y1 then
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if density >= TSTONE then
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if biome == 3 then
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data[vi] = c_frdestone
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data[vi] = c_destone
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else
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data[vi] = c_frstone
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data[vi] = c_stone
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end
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stable[si] = stable[si] + 1
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under[si] = 0
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@ -223,11 +272,33 @@ minetest.register_on_generated(function(minp, maxp, seed)
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fracture_cactus(x, y, z, area, data)
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end
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end
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stable[si] = 0
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under[si] = 0
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elseif y == y0 + 1 then
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local xrq = 16 * math.floor((x - x0) / 16)
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local zrq = 16 * math.floor((z - z0) / 16)
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local yrq = 79
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local qixyz = zrq * 6400 + yrq * 80 + xrq + 1
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if math.abs(nvals_flora[qixyz]) < 0.2
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and nvals_cloud[qixyz] >= 0 then
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data[vi] = c_cloud
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end
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stable[si] = 0
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under[si] = 0
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else -- air
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stable[si] = 0
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under[si] = 0
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end
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elseif y == y1 + 1 then
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if density < 0 and under[si] ~= 0 then
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if under[si] == 1 then
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data[viu] = c_dirtsnow
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data[vi] = c_snowblock
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elseif under[si] == 2 then
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data[viu] = c_grass
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end
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end
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end
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nixyz = nixyz + 1
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vi = vi + 1
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viu = viu + 1
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