Add beach, river, stream sand. Detail down to 12n
parent
ecfba273d6
commit
98c1d17690
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@ -1,4 +1,4 @@
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riverdev 0.1.1 by paramat
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riverdev 0.1.2 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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37
init.lua
37
init.lua
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@ -1,21 +1,27 @@
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-- riverdev 0.1.1 by paramat
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-- riverdev 0.1.2 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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-- Add beach and river sand, else desert sand
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-- detail down to 12n
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-- Parameters
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local YMIN = -33000
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local YMAX = 33000
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local YWATER = 1
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local TERZERO = 1 -- Terrain zero level
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local TERSCAL = 256 -- Terrain scale in nodes
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local TSTONE = 0.03 -- Density threshold for stone, depth of stone below surface
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local YSAND = 3
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local YTER = 1 -- Terrain zero level
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local TERSCA = 256 -- Terrain vertical scale in nodes
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local TSTONE = 0.02 -- Density threshold for stone, depth of stone below surface
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local BASAMP = 0.2
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local MIDAMP = 0.2
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local TERAMP = 0.4
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local TERAMP = 0.5
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local TRIVER = -0.03
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local TRSAND = -0.035
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local TSTREAM = -0.01
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local TSSAND = -0.01
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-- 3D noise for terrain
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@ -24,7 +30,7 @@ local np_terrain = {
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scale = 1,
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spread = {x=384, y=192, z=384},
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seed = 5900033,
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octaves = 5,
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octaves = 6,
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persist = 0.67
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}
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@ -33,9 +39,9 @@ local np_terrain = {
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local np_mid = {
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offset = 0,
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scale = 1,
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spread = {x=768, y=768, z=768}, -- spread is still stated with xyz values
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spread = {x=768, y=768, z=768},
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seed = 85546,
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octaves = 4,
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octaves = 5,
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persist = 0.5
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}
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@ -44,7 +50,7 @@ local np_mid = {
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local np_base = {
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offset = 0,
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scale = 1,
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spread = {x=1536, y=1536, z=1536}, -- spread is still stated with xyz values
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spread = {x=1536, y=1536, z=1536},
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seed = -990054,
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octaves = 3,
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persist = 0.33
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@ -168,6 +174,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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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_sand = minetest.get_content_id("default:sand")
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local c_desand = minetest.get_content_id("default:desert_sand")
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local c_stone = minetest.get_content_id("riverdev:stone")
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local c_freshwater = minetest.get_content_id("riverdev:freshwater")
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@ -205,19 +212,27 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local n_mid = nvals_mid[nixz]
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local n_base = nvals_base[nixz]
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local grad = (TERZERO - y) / TERSCAL
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local grad = (YTER - y) / TERSCA
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local densitybas = n_base * BASAMP + grad
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local densitymid = math.abs(n_mid) * MIDAMP + densitybas
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local density = math.abs(n_terrain) * TERAMP * math.abs(n_mid) + densitymid
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local triver = TRIVER * (1 - n_base)
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local trsand = TRSAND * (1 - n_base)
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local tstream = TSTREAM * (1 - math.abs(n_mid))
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local tssand = TSSAND * (1 - math.abs(n_mid))
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if density >= TSTONE then -- stone
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data[vi] = c_stone
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stable[si] = stable[si] + 1
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elseif density >= 0 and density < TSTONE and stable[si] >= 2 then -- fine materials
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data[vi] = c_sand
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if y <= YSAND + math.random() * 2
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or densitybas >= trsand + math.random() * 0.002
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or densitymid >= tssand + math.random() * 0.002 then
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data[vi] = c_sand
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else
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data[vi] = c_desand
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end
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elseif y <= YWATER and density < TSTONE then -- sea water
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data[vi] = c_water
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stable[si] = 0
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