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fix snowfall and pines

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HybridDog
2015-06-21 12:49:27 +02:00
parent e990039ea3
commit 7370b142ed
3 changed files with 74 additions and 57 deletions
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26
src/mapgen_v6.lua
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@ -11,9 +11,12 @@ local np_default = {
-- 2D noise for coldness
local mg = snow.mapgen
local scale = mg.perlin_scale
local np_cold = {
offset = 0,
scale = 1,
spread = {x=scale, y=scale, z=scale},
seed = 112,
octaves = 3,
persist = 0.5
@ -121,26 +124,11 @@ local function define_contents()
replacements = snow.known_plants or {}
end
-- perlin noise "hills" are not peaks but looking like sinus curve
local function upper_rarity(rarity)
return math.sign(rarity)*math.sin(math.abs(rarity)*math.pi/2)
end
local rarity = 18 --snow.mapgen_rarity
local size = 210 --snow.mapgen_size
local nosmooth_rarity = 1-rarity/50
local perlin_scale = size*100/rarity
np_cold.spread = {x=perlin_scale, y=perlin_scale, z=perlin_scale}
local smooth_rarity_max, smooth_rarity_min, smooth_rarity_dif
local smooth = snow.smooth_biomes
if smooth then
local smooth_trans_size = 4 --snow.smooth_trans_size
smooth_rarity_max = upper_rarity(nosmooth_rarity+smooth_trans_size*2/perlin_scale)
smooth_rarity_min = upper_rarity(nosmooth_rarity-smooth_trans_size/perlin_scale)
smooth_rarity_dif = smooth_rarity_max-smooth_rarity_min
end
nosmooth_rarity = upper_rarity(nosmooth_rarity)
local smooth_rarity_max = mg.smooth_rarity_max
local smooth_rarity_min = mg.smooth_rarity_min
local smooth_rarity_dif = mg.smooth_rarity_dif
local nosmooth_rarity = mg.nosmooth_rarity
minetest.register_on_generated(function(minp, maxp, seed)
local t1 = os.clock()