285 lines
7.4 KiB
Lua
285 lines
7.4 KiB
Lua
-- Parameters
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local TTUN = 0.02 -- Tunnel width
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local TMAG = 0.01 -- Magma channel width
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local LUX = true -- Enable luxore
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local LUXCHA = 1 / 9 ^ 3 -- Luxore chance per stone node.
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-- 3D noise a
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local np_weba = {
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offset = 0,
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scale = 1,
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spread = {x = 192, y = 192, z = 192},
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seed = 5900033,
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octaves = 3,
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persist = 0.5
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}
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-- 3D noise b
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local np_webb = {
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offset = 0,
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scale = 1,
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spread = {x = 191, y = 191, z = 191},
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seed = 33,
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octaves = 3,
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persist = 0.5
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}
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-- 3D noise c
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local np_webc = {
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offset = 0,
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scale = 1,
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spread = {x = 190, y = 190, z = 190},
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seed = -18000001,
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octaves = 3,
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persist = 0.5
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}
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-- 3D noise d
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local np_webd = {
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offset = 0,
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scale = 1,
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spread = {x = 384, y = 384, z = 384},
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seed = -181,
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octaves = 3,
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persist = 0.4
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}
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-- 3D noise e
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local np_webe = {
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offset = 0,
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scale = 1,
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spread = {x = 383, y = 383, z = 383},
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seed = 1022081,
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octaves = 3,
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persist = 0.4
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}
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-- 3D noise for biomes
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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 = 384, y = 384, z = 384},
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seed = 89114,
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octaves = 1,
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persist = 0
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}
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-- Nodes
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minetest.register_node("intersecting:luxore", {
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description = "Lux Ore",
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tiles = {"intersecting_luxore.png"},
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paramtype = "light",
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light_source = 14,
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groups = {cracky = 3},
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sounds = default.node_sound_glass_defaults(),
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})
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minetest.register_node("intersecting:light", {
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description = "Light",
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tiles = {"intersecting_light.png"},
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paramtype = "light",
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light_source = 14,
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groups = {cracky = 3, oddly_breakable_by_hand = 3},
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sounds = default.node_sound_glass_defaults(),
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})
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-- Crafting.
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minetest.register_craft({
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output = "intersecting:light 8",
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recipe = {
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{"default:glass", "default:glass", "default:glass"},
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{"default:glass", "intersecting:luxore", "default:glass"},
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{"default:glass", "default:glass", "default:glass"},
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},
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})
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minetest.register_craft({
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output = "intersecting:light 8",
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recipe = {
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{"default:obsidian_glass", "default:obsidian_glass", "default:obsidian_glass"},
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{"default:obsidian_glass", "intersecting:luxore", "default:obsidian_glass"},
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{"default:obsidian_glass", "default:obsidian_glass", "default:obsidian_glass"},
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},
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})
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-- Initialize noise objects to nil
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local nobj_weba = nil
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local nobj_webb = nil
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local nobj_webc = nil
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local nobj_webd = nil
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local nobj_webe = nil
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local nobj_biome = nil
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-- On generated function
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minetest.register_on_generated(function(minp, maxp, seed)
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if minp.y > 48 then
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return
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end
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local t1 = os.clock()
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local x1 = maxp.x
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local y1 = maxp.y
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local z1 = maxp.z
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local x0 = minp.x
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local y0 = minp.y
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local z0 = minp.z
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local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local area = VoxelArea:new{MinEdge = emin, MaxEdge = emax}
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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_water = minetest.get_content_id("default:water_source")
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local c_dirt = minetest.get_content_id("default:dirt")
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local c_sand = minetest.get_content_id("default:sand")
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local c_lava = minetest.get_content_id("default:lava_source")
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local c_grass = minetest.get_content_id("default:dirt_with_grass")
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local c_tree = minetest.get_content_id("default:tree")
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local c_jtree = minetest.get_content_id("default:jungletree")
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local c_stone = minetest.get_content_id("default:stone")
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local c_desertstone = minetest.get_content_id("default:desert_stone")
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local c_sandstone = minetest.get_content_id("default:sandstone")
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local c_luxore = minetest.get_content_id("intersecting:luxore")
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local sidelen = x1 - x0 + 1
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local emerlen = sidelen + 32
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local emerarea = emerlen ^ 2
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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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nobj_weba = nobj_weba or minetest.get_perlin_map(np_weba, chulens)
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nobj_webb = nobj_webb or minetest.get_perlin_map(np_webb, chulens)
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nobj_webc = nobj_webc or minetest.get_perlin_map(np_webc, chulens)
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nobj_webd = nobj_webd or minetest.get_perlin_map(np_webd, chulens)
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nobj_webe = nobj_webe or minetest.get_perlin_map(np_webe, chulens)
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nobj_biome = nobj_biome or minetest.get_perlin_map(np_biome, chulens)
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local nvals_weba = nobj_weba:get3dMap_flat(minposxyz)
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local nvals_webb = nobj_webb:get3dMap_flat(minposxyz)
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local nvals_webc = nobj_webc:get3dMap_flat(minposxyz)
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local nvals_webd = nobj_webd:get3dMap_flat(minposxyz)
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local nvals_webe = nobj_webe:get3dMap_flat(minposxyz)
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local nvals_biome = nobj_biome:get3dMap_flat(minposxyz)
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local cavbel = {}
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--local stobel = {}
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local nixyz = 1
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for z = z0, z1 do -- for each xy plane progressing northwards
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for y = y0, y1 do -- for each x row progressing upwards
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local ti = 1
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local vi = area:index(x0, y, z)
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local via = vi + emerlen
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local vin = vi + emerarea
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local vis = vi - emerarea
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local vie = vi + 1
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local viw = vi - 1
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for x = x0, x1 do -- for each node progressing eastwards
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local nodid = data[vi]
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local nodida = data[via]
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local nodide = data[vie]
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local nodidw = data[viw]
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local nodidn = data[vin]
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local nodids = data[vis]
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-- water adjacent
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local watadj = nodida == c_water
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or nodidw == c_water or nodide == c_water
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or nodidn == c_water or nodids == c_water
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-- lakebed material
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local surfmat = (nodid == c_sand or nodid == c_dirt
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or nodid == c_grass) and y <= 2
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if nodid ~= c_air then
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local weba = math.abs(nvals_weba[nixyz]) < TTUN
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local webb = math.abs(nvals_webb[nixyz]) < TTUN
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local webc = math.abs(nvals_webc[nixyz]) < TTUN
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local webd = math.abs(nvals_webd[nixyz]) < TMAG
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local webe = math.abs(nvals_webe[nixyz]) < TMAG
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local n_biome = nvals_biome[nixyz]
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local void
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local magma = webd and webe
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if n_biome < -0.3 then
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void = (weba and webb) or (webb and webc)
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elseif n_biome < 0.3 then
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void = (webb and webc) or (weba and webc)
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else
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void = (weba and webc) or (weba and webb)
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end
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if void or magma then
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if magma then -- magma tunnel
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if y <= 1 then
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data[vi] = c_lava
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else
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data[vi] = c_air
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end
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cavbel[ti] = 1
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--stobel[ti] = 0
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elseif (nodid == c_water or watadj) and cavbel[ti] == 1 then
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for j = -1, -16, -1 do -- water plug
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local vip = area:index(x, y + j, z)
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if data[vip] == c_air then
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data[vip] = c_stone
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end
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end
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cavbel[ti] = 0
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--stobel[ti] = 0
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elseif nodid ~= c_water and not surfmat and not watadj then
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data[vi] = c_air -- tunnel
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cavbel[ti] = 1
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--stobel[ti] = 0
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end
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-- if trunk cut remove whole trunk
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if nodid == c_tree or nodid == c_jtree then
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for j = -12, 12 do
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local vit = area:index(x, y + j, z)
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if data[vit] == c_tree or data[vit] == c_jtree then
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data[vit] = c_air
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end
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end
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end
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else -- solid or liquid
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cavbel[ti] = 0
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if nodid == c_stone or nodid == c_desertstone
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or nodid == c_sandstone then
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if LUX then
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if math.random() < LUXCHA then
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data[vi] = c_luxore
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end
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end
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--stobel[ti] = 1
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end
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end
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else -- nodid == c_air
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cavbel[ti] = 0
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--stobel[ti] = 0
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end
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nixyz = nixyz + 1
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ti = ti + 1
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vi = vi + 1
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via = via + 1
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vin = vin + 1
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vis = vis + 1
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vie = vie + 1
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viw = viw + 1
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end
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end
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end
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vm:set_data(data)
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vm:set_lighting({day = 0, night = 0})
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vm:calc_lighting()
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vm:write_to_map(data)
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local chugent = math.ceil((os.clock() - t1) * 1000)
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print ("[intersecting] " .. chugent .. " ms")
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end)
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