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Add sub-ranges for biome selection

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Sub-ranges for noise (biome selection). This is to mitigate straight lines occurring at edges of chunks for deep biomes when a "non-deep" biome is chosen

Tweak biome noise values (spread)
This commit is contained in:
Craig Robbins 2017-03-04 16:57:09 +10:00
parent 39ce34b6fe
commit 0dca2cb860
1 changed files with 12 additions and 14 deletions
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26
init.lua
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@ -49,7 +49,7 @@ local DEEP_CAVE = caverealms.config.deep_cave -- -7000 --level at which deep cav
local np_biome = {
offset = 0,
scale = 1,
spread = {x=250, y=250, z=250},
spread = {x=200, y=200, z=200},
seed = 9130,
octaves = 3,
persist = 0.5
@ -127,13 +127,6 @@ minetest.register_on_generated(function(minp, maxp, seed)
local nixz = 1 --2D node index
local nixyz2 = 1 --second 3D index for second loop
local allow_deep_caves
if (math.random() <= 0.5) then
allow_deep_caves = true
else
allow_deep_caves = false
end
for z = z0, z1 do -- for each xy plane progressing northwards
--increment indices
@ -146,7 +139,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
local c_selected_worm = c_worm
local is_deep = false
if allow_deep_caves and y < DEEP_CAVE then
if y < DEEP_CAVE then
is_deep = true
end
@ -160,31 +153,36 @@ minetest.register_on_generated(function(minp, maxp, seed)
--compare noise values to determine a biome
if n_biome <= -0.5 then
if is_deep then
if is_deep and n_biome <= -0.25 then
biome = 8 --glow obsidian
else
biome = 2 --fungal
c_selected_worm = c_worm_green
end
elseif n_biome < 0 then
biome = 0 -- none
elseif n_biome < 0.5 then
if is_deep then
if is_deep and n_biome <= 0.25 then
biome = 7 --salt crystal
else
biome = 1 --moss
end
elseif n_biome < 0.65 then
biome = 0
elseif n_biome < 0.8 then
if is_deep then
elseif n_biome < 0.85 then
if is_deep and n_biome <= 0.75 then
biome = 9 --coal dust
else
biome = 3 --algae
c_selected_worm = c_worm_green
end
else
if is_deep then
if is_deep and n_biome <= .95 then
biome = 5 --deep glaciated
else
biome = 4 --glaciated