Ores, tunnels, flowers, pines located by altitude
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Mat
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@ -1,4 +1,4 @@
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riverdev 0.4.2 by paramat
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riverdev 0.4.3 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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@ -1,3 +1,4 @@
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default
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stairs
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bucket
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vessels
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83
init.lua
83
init.lua
@ -1,13 +1,8 @@
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-- riverdev 0.4.2 by paramat
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-- riverdev 0.4.3 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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-- Pines, pine sapling. pine wood, slabs, stairs. Bucket fresh water
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-- TODO
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-- autumn forest, red/orange/yellow leaves, falling leaf particls, also on ground around tree
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-- cubeworld style boulders
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-- Parameters
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local YMIN = -33000
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@ -24,10 +19,13 @@ local TSTONE = 0.02
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local TRIVER = -0.018
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local TRSAND = -0.02
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local TPFLO = 0.03 -- Width of flora clearing around paths
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local TTUN = 0.02 -- Tunnel width
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local ORECHA = 1 / 5 ^ 3 -- Ore chance per stone node. 1 / n ^ 3 where n = average distance between ores
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local APPCHA = 1 / 5 ^ 2 -- Appletree maximum chance per grass node. 1 / n ^ 2 where n = average minimum distance between flora
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local PINCHA = 1 / 6 ^ 2 -- Pinetree maximum chance per grass node
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local GRACHA = 1 / 4 ^ 2 -- Grasses maximum chance per grass node
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local GRACHA = 1 / 5 ^ 2 -- Grasses maximum chance per grass node
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local FLOCHA = 1 / 41 ^ 2 -- Flower chance per grass node
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-- 3D noise for highland terrain
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@ -106,6 +104,26 @@ local np_grass = {
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persist = 0.5
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}
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-- 3D noises for tunnels
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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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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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-- Stuff
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riverdev = {}
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@ -144,6 +162,12 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local c_sand = minetest.get_content_id("default:sand")
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local c_wood = minetest.get_content_id("default:wood")
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local c_grass5 = minetest.get_content_id("default:grass_5")
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local c_stodiam = minetest.get_content_id("default:stone_with_diamond")
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local c_stomese = minetest.get_content_id("default:stone_with_mese")
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local c_stogold = minetest.get_content_id("default:stone_with_gold")
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local c_stocopp = minetest.get_content_id("default:stone_with_copper")
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local c_stoiron = minetest.get_content_id("default:stone_with_iron")
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local c_stocoal = minetest.get_content_id("default:stone_with_coal")
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local c_dirt = minetest.get_content_id("riverdev:dirt")
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local c_grass = minetest.get_content_id("riverdev:grass")
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@ -161,6 +185,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local minposxz = {x=x0-1, y=z0-1}
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local nvals_terrain = minetest.get_perlin_map(np_terrain, chulensxyz):get3dMap_flat(minposxyz)
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local nvals_weba = minetest.get_perlin_map(np_weba, chulensxyz):get3dMap_flat(minposxyz)
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local nvals_webb = minetest.get_perlin_map(np_webb, chulensxyz):get3dMap_flat(minposxyz)
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local nvals_mid = minetest.get_perlin_map(np_mid, chulensxz):get2dMap_flat(minposxz)
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local nvals_base = minetest.get_perlin_map(np_base, chulensxz):get2dMap_flat(minposxz)
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@ -212,12 +238,16 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local triver = TRIVER * n_absbase
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local trsand = TRSAND * n_absbase
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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 novoid = not (weba and webb)
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local wood = densitybase > trsand * 2 and density < 0
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if chunkxz and y == y0 - 1 then -- overgeneration, initialise tables
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under[si] = 0
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if ungen then -- guess by calculating density
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if density >= 0 then
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if density >= 0 and novoid then
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stable[si] = 2
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else
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stable[si] = 0
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@ -235,8 +265,28 @@ minetest.register_on_generated(function(minp, maxp, seed)
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end
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end
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elseif chunkxz and y >= y0 and y <= y1 then -- chunk generation
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if density >= tstone then -- stone
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data[vi] = c_stone
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if density >= tstone
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and (novoid
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or (density < tstone * 1.5
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and (y <= YWATER or densitybase >= triver))) then
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if math.random() < ORECHA and density > TSTONE then -- ores
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local osel = math.random(24)
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if osel == 24 then
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data[vi] = c_stodiam
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elseif osel == 23 then
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data[vi] = c_stomese
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elseif osel == 22 then
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data[vi] = c_stogold
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elseif osel >= 19 then
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data[vi] = c_stocopp
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elseif osel >= 10 then
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data[vi] = c_stoiron
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else
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data[vi] = c_stocoal
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end
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else
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data[vi] = c_stone -- 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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elseif y > YSAND
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@ -279,7 +329,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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data[vi] = c_water
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stable[si] = 0
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under[si] = 0
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elseif densitybase >= triver then -- river water
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elseif densitybase >= triver and density < 0 then -- river water
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if y == YWATER + 1 then
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data[vi] = c_mixwater
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else
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@ -290,19 +340,24 @@ minetest.register_on_generated(function(minp, maxp, seed)
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elseif density < 0 and under[si] ~= 0 then -- air above surface
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if under[si] == 1 and nodid ~= c_path and nodidu ~= c_path
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and nodid ~= c_wood and nodidu ~= c_wood then
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if math.random() < APPCHA * n_tree and tstone > 0.005
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if math.random() < APPCHA * n_tree and tstone > 0.012
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and n_abspatha > TPFLO and n_abspathb > TPFLO then
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riverdev_appletree(x, y, z, area, data)
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elseif math.random() < PINCHA * n_tree and tstone > 0.004 and tstone < 0.012
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and n_abspatha > TPFLO and n_abspathb > TPFLO then
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riverdev_pinetree(x, y, z, area, data)
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else
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data[viu] = c_grass
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if math.random() < GRACHA * n_grass then -- grasses
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if math.random() < FLOCHA then
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riverdev_flower(data, vi)
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elseif math.random() < GRACHA * n_grass then -- grasses
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data[vi] = c_grass5
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end
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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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else -- air
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else -- air or tunnel
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stable[si] = 0
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under[si] = 0
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end
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