Fix logic. Use new noiseparams format
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paramat
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127
init.lua
127
init.lua
@ -1,84 +1,101 @@
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-- TODO rework logic
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-- Parameters
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local SCALP = 23 -- Time scale for precipitation variation in minutes
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local PRET = -1 -- Precipitation noise threshold:
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local PRECSPR = 23 -- Time scale for precipitation variation in minutes
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local PRECTHR = -1 -- Precipitation noise threshold:
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-- -1 continuous, -0.3 two thirds the time,
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-- 0 half the time, 0.3 one third the time, 1 none.
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local PPPCHA = 0.1 -- Per player processing chance.
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local PROCHA = 0.1 -- Per player per globalstep processing chance
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local FLAKES = 8 -- Snowflake density
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local NISVAL = 31 -- Snow clouds RGB value at night
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local DASVAL = 127 -- Snow clouds RGB value in daytime
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local SETTLE = false -- Snow collects on ground within 32 nodes of player
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local SETCHA = 0.2 -- 0 to 1. Snow settling chance
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local DASVAL = 135 -- Snow clouds RGB value in daytime
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-- Stuff
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local difsval = DASVAL - NISVAL
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local np_prec = {
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offset = 0,
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scale = 1,
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spread = {x = PRECSPR, y = PRECSPR, z = PRECSPR},
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seed = 813,
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octaves = 1,
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persist = 0,
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lacunarity = 2.0,
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--flags = ""
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}
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-- Detect mapgen to select noise parameters
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local TSEED, TOCTA, TPERS, TSCAL, TTHR
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local np_temp, tempthr
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local mg_params = minetest.get_mapgen_params()
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if mg_params.mgname == "v6" then
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TSEED = 9130
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TOCTA = 3
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TPERS = 0.5
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TSCAL = 500
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TTHR = -0.4
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np_temp = {
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offset = 0,
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scale = 1,
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spread = {x = 500, y = 500, z = 500},
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seed = 9130,
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octaves = 3,
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persist = 0.5,
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lacunarity = 2.0,
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--flags = ""
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}
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tempthr = -0.4
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else
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TSEED = 5349
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TOCTA = 3
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TPERS = 0.5
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TSCAL = 1000
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TTHR = -0.4
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np_temp = {
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offset = 0,
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scale = 1,
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spread = {x = 1000, y = 1000, z = 1000},
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seed = 5349,
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octaves = 3,
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persist = 0.5,
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lacunarity = 2.0,
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--flags = ""
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}
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tempthr = -0.4
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end
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-- Globalstep function
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minetest.register_globalstep(function(dtime)
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local perlinp = minetest.get_perlin(813, 1, 0.5, SCALP)
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-- check if snow is currently falling
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if perlinp:get2d({x = os.clock() / 60, y = 0}) < PRET then
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return
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end
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for _, player in ipairs(minetest.get_connected_players()) do
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-- randomise and spread processing load
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if math.random() > PPPCHA then
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return
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end
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-- check if undercover
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local ppos = player:getpos()
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if minetest.get_node_light(ppos, 0.5) ~= 15 then
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if math.random() > PROCHA then
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return
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end
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-- check if in snow biome
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local ppos = player:getpos()
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local pposx = math.floor(ppos.x)
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local pposy = math.floor(ppos.y)
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local pposz = math.floor(ppos.z)
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local perlint = minetest.get_perlin(TSEED, TOCTA, TPERS, TSCAL)
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local noiset
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local nobj_temp = minetest.get_perlin(np_temp)
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local nval_temp
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if mg_params.mgname == "v6" then
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noiset = perlint:get2d({x = pposx + 300, y = pposz + 100})
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nval_temp = nobj_temp:get2d({x = pposx + 300, y = pposz + 100})
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else
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noiset = perlint:get2d({x = pposx, y = pposz})
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nval_temp = nobj_temp:get2d({x = pposx, y = pposz})
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end
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-- if in snow biome
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if noiset <= TTHR then
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-- set sky to snow clouds
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-- first transition (24000 -) 4500, (1 -) 0.1875
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-- last transition (24000 -) 5750, (1 -) 0.2396
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local snowbiome = nval_temp <= tempthr
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-- check if snow is currently falling
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local nobj_prec = minetest.get_perlin(np_prec)
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local snowfall = nobj_prec:get2d({x = os.clock() / 60, y = 0}) >= PRECTHR
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-- check if player is outside
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local outside = minetest.get_node_light(ppos, 0.5) == 15
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-- occasionally reset player sky
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if math.random() < 0.1 then
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if snowbiome and snowfall then
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-- set sky to snow clouds
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local sval
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local time = minetest.get_timeofday()
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if time >= 0.5 then
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time = 1 - time
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end
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-- first transition (24000 -) 4500, (1 -) 0.1875
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-- last transition (24000 -) 5750, (1 -) 0.2396
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if time <= 0.1875 then
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sval = NISVAL
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elseif time >= 0.2396 then
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@ -88,19 +105,24 @@ minetest.register_globalstep(function(dtime)
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end
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player:set_sky({r = sval, g = sval, b = sval + 16, a = 255}, "plain", {})
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else -- reset sky to normal
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player:set_sky({}, "regular", {})
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end
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end
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if snowbiome and snowfall and outside then
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-- snowfall
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for flake = 1, FLAKES do
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minetest.add_particle({
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pos = {
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x = pposx - 32 + math.random(0, 63),
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y = pposy + 11 + math.random(),
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z = pposz - 8 + math.random(0, 63)
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y = pposy + 12 + math.random(),
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z = pposz - 20 + math.random(0, 63)
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},
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vel = {
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x = -0.1 + math.random() * 0.2,
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y = -1.1 + math.random() * 0.2,
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z = -2.1 + math.random() * 0.2
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z = -1.1 + math.random() * 0.2
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},
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acc = {x = 0, y = 0, z = 0},
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expirationtime = 24,
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@ -111,13 +133,18 @@ minetest.register_globalstep(function(dtime)
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playername = player:get_player_name()
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})
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end
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-- snow settling
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end
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end
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end)
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--[[ snow settling
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if SETTLE and math.random() < SETCHA then -- settling snow
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local sposx = pposx - 32 + math.random(0, 63)
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local sposz = pposz - 32 + math.random(0, 63)
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-- check under open sky
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if minetest.get_node_light({x = sposx, y = pposy + 32, z = sposz}, 0.5) == 15 then
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for y = pposy + 32, pposy - 64, -1 do -- find surface
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for y = pposy + 48, pposy - 48, -1 do -- find surface
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local nodename = minetest.get_node({x = sposx, y = y, z = sposz}).name
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if nodename ~= "air" and nodename ~= "ignore" then
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if nodename == "default:desert_sand" -- no snow on these
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@ -158,10 +185,4 @@ minetest.register_globalstep(function(dtime)
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end
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end
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end
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end
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-- reset sky to normal
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elseif math.random() < 0.1 then
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player:set_sky({}, "regular", {})
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end
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end
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end)
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end --]]
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