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Obsidian cones and tubes around magma channels

master
paramat 2014-09-30 03:53:30 +01:00
parent c610c32878
commit 695c0729b8
2 changed files with 26 additions and 13 deletions
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2
README.txt
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@ -1,4 +1,4 @@
riverdev 0.5.2 by paramat
riverdev 0.5.3 by paramat
For latest stable Minetest back to 0.4.8
Depends default
Licenses: code WTFPL

37
init.lua
View File

@ -1,11 +1,10 @@
-- riverdev 0.5.2 by paramat
-- riverdev 0.5.3 by paramat
-- For latest stable Minetest and back to 0.4.8
-- Depends default
-- License: code WTFPL
-- boulders eroded by water
-- clear nodes above path
-- magma tunnels
-- junglewood bridges
-- obsidian cones and tubes around magma channels
-- Parameters
@ -26,6 +25,7 @@ local TRSAND = -0.02
local TPFLO = 0.02 -- Width of flora clearing around paths
local TTUN = 0.02 -- Tunnel/fissure width
local TMAG = 0.01 -- Magma tunnel width
local TOBS = 0.02 -- Obsidian tube width
local ORECHA = 1 / 5 ^ 3 -- Ore chance per stone node. 1 / n ^ 3 where n = average distance between ores
local BOLCHA = 1 / 127 ^ 2 -- Boulder maximum chance per grass node. 1 / n ^ 2 where n = average minimum distance between flora
@ -199,6 +199,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
local c_snowblock = minetest.get_content_id("default:snowblock")
local c_grass5 = minetest.get_content_id("default:grass_5")
local c_lava = minetest.get_content_id("default:lava_source")
local c_obsidian = minetest.get_content_id("default:obsidian")
local c_jungrass = minetest.get_content_id("default:junglegrass")
local c_stodiam = minetest.get_content_id("default:stone_with_diamond")
local c_stomese = minetest.get_content_id("default:stone_with_mese")
@ -289,10 +290,12 @@ minetest.register_on_generated(function(minp, maxp, seed)
local trsand = TRSAND * n_absbase
local weba = math.abs(nvals_weba[nixyz]) < TTUN
local webb = math.abs(nvals_webb[nixyz]) < TTUN + n_invbase ^ 8 * 2 -- blend tunnel into fissure at ridge
local webb = math.abs(nvals_webb[nixyz]) < TTUN + n_invbase ^ 8 * 2 -- blend tunnel to fissure
local novoid = not (weba and webb)
local webc = math.abs(nvals_webc[nixyz]) < TMAG
local webd = math.abs(nvals_webd[nixyz]) < TMAG
local n_abswebc = math.abs(nvals_webc[nixyz])
local n_abswebd = math.abs(nvals_webd[nixyz])
local tobs = TOBS + (density + tstone)
local wood = densitybase > trsand * 2 and density < 0
@ -317,10 +320,20 @@ minetest.register_on_generated(function(minp, maxp, seed)
end
end
elseif chunkxz and y >= y0 and y <= y1 then -- chunk generation
if density >= tstone and webc and webd then -- magma
data[vi] = c_lava
stable[si] = 0
under[si] = 0
if density >= -tstone -- magma/obsidian system
and ((n_abswebc <= TOBS and n_abswebd <= TOBS)
or (density < tstone and n_abswebc <= tobs and n_abswebd <= tobs)) then
if n_abswebc < TMAG and n_abswebd < TMAG then
if density >= tstone * 2 then -- magma
data[vi] = c_lava
stable[si] = 0
under[si] = 0
end
else
data[vi] = c_obsidian -- obsidian
stable[si] = 1
under[si] = 0
end
elseif density >= tstone and (novoid
or (density < tstone * 1.5
and (y <= YWATER or densitybase >= triver))) then
@ -453,7 +466,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
data[vi] = c_jungrass
end
end
elseif under[si] == 5 and n_temp < LOTET then
elseif under[si] == 5 and n_temp < LOTET then -- stone
data[vi] = c_snowblock
end
stable[si] = 0