Temp/humidity and snow mod modes. Snow and rain independant and optional
paramat
parent
ba01303362
commit
807c41dfa5
29
README.txt
29
README.txt
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@ -1,29 +1,4 @@
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Snowdrift 0.2.0 by paramat
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Snowdrift 0.2.1 by paramat
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For latest stable Minetest and back to 0.4.6
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Depends default
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Licenses: code WTFPL, textures CC BY-SA
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Version 0.1.0
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---------------
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* Snowfall only in the snow biomes of snow mod by Splizard. You will need to disable snow mod snowfall.
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* Minimal processing for less powerful computers.
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* Snowfall is only seen by a player if the player is outside under open sky.
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* Each snowflake has it's own random trajectory, initial position, initial velocity and acceleration.
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* Snow falls at an average of 1m/s.
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* Snow drifts southwards at an average of 1m/s, a slightly lower speed than the southward cloud drift.
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* Snowflakes are sized to match 16x16 texture resolution and the icons used in my texture pack.
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* The snow box around the player is 128x128x32 nodes in size.
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* Parameter PROCHA controls snow density and processing load, default is 0.5, try 1 for denser snow.
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Version 0.1.1
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-------------
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* Mod is too light, doubled maximum snow density, added second snowflake design with a square symmetry.
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* Snow density is now smoothly varied by how deep into a snow biome a player is.
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Version 0.1.2
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-------------
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* Maximum snowfall doubled, 4 snowflake designs.
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v0.2.0
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------
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* Rain defined by a second perlin noise and threshold.
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Licenses: code WTFPL, textures CC BY-SA
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185
init.lua
185
init.lua
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@ -1,25 +1,30 @@
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-- Snowdrift 0.2.0 by paramat
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-- snowdrift 0.2.1 by paramat
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-- For latest stable Minetest and back to 0.4.6
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-- Depends default
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-- Licenses: Code WTFPL. Textures CC BY-SA.
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-- This is intended to be used as alternative snowfall for the snow mod by Splizard.
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-- The code is partly derived from weather mod by Jeija and snow mod version 1.8 by Splizard.
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-- Licenses: code WTFPL, textures CC BY-SA
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-- Parameters
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local PROCHA = 0.5 -- (0 to 1) -- Processing chance
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local PROCHA = 0.2 -- (0 to 1) -- Per player processing chance, randomizes and spreads processing load
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local DROPS = 8 -- Rainfall heaviness
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local SNOWV6 = true -- Snowfall in snow biomes of snow mod by Splizard
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local RAIN = false -- Rain above humidity threshold
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local THOVER = false -- Instea use a temperature and humidity system with
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-- snow in overlap of cold and humid
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-- else rain in humid areas
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local SEEDT = 112 -- 112 -- If THOVER = true, set these to your mapgen's temperature noise parameters
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local OCTAT = 3 -- 3
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local PERST = 0.5 -- 0.5
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local SCALT = 150 -- 150
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local SEEDS = 112 -- 112 -- Snow mod default biome noise parameters
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local OCTAS = 3 -- 3
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local PERSS = 0.5 -- 0.5
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local SCALS = 64 -- 150
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local SNOWT = 0.4 -- 0.53
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local TET = -0.53 -- -0.53 -- Temperature threshold for snow
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-- If SNOWV6 = true set to -0.53
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local SEEDH = 72384 -- 72384 -- Set these to your mapgen's humidity noise parameters
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local OCTAH = 4 -- 4
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local PERSH = 0.66 -- 0.66
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local SCALH = 500 -- 500
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local SEEDR = -90000667
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local OCTAR = 3
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local PERSR = 0.5
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local SCALR = 64
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local RAINT = 0.4
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local HUT = 0.5 -- 0.5 -- Humidity threshold for rain
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-- Stuff
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@ -28,77 +33,105 @@ snowdrift = {}
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-- Globalstep function
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minetest.register_globalstep(function(dtime)
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-- if not raining at this time then return
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-- TODO if not raining at this time then return
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for _, player in ipairs(minetest.get_connected_players()) do
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if math.random() > PROCHA then
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return
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end
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local ppos = player:getpos()
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if minetest.env:get_node_light(ppos, 0.5) ~= 15 then
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if minetest.get_node_light(ppos, 0.5) ~= 15 then
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return
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end
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local perlins = minetest.env:get_perlin(SEEDS, OCTAS, PERSS, SCALS)
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local noises = perlins:get2d({x = ppos.x, y = ppos.z})
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if noises > SNOWT then -- if snow biome
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if math.random() < noises - SNOWT then
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y= ppos.y + 16, z= ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake1.png",
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player:get_player_name()
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)
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y= ppos.y + 16, z= ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake2.png",
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player:get_player_name()
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)
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y= ppos.y + 16, z= ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake3.png",
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player:get_player_name()
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)
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y= ppos.y + 16, z= ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake4.png",
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player:get_player_name()
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)
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local snow = false
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local rain = false
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local noiset
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local noiseh
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if SNOWV6 or THOVER then
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local perlint = minetest.get_perlin(SEEDT, OCTAT, PERST, SCALT)
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noiset = perlint:get2d({x = ppos.x + 150, y = ppos.z + 50})
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end
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if RAIN or THOVER then
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local perlinh = minetest.get_perlin(SEEDH, OCTAH, PERSH, SCALH)
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noiseh = perlinh:get2d({x = ppos.x, y = ppos.z})
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end
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if THOVER then
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if noiset < TET and noiseh > HUT then
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snow = true
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elseif noiseh > HUT then
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rain = true
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end
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else -- check rain noise
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local perlinr = minetest.get_perlin(SEEDR, OCTAR, PERSR, SCALR)
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local noiser = perlinr:get2d({x = ppos.x, y = ppos.z})
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if math.random() < noiser - RAINT then
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for drop = 1, 4 do
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minetest.add_particle(
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{x = ppos.x - 16 + math.random(0, 32), y= ppos.y + 16, z= ppos.z - 16 + math.random(0, 32)}, -- posi
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{x = 0, y = -8, z = -1}, -- velo
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{x = 0, y = 0, z = 0}, -- acce
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4,
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2.8,
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false,
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"snowdrift_raindrop.png",
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player:get_player_name()
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)
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elseif SNOWV6 then
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if -noiset < TET then -- negative sign because snow mod noise is 'coldness'
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snow = true
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elseif RAIN then
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if noiseh > HUT then
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rain = true
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end
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end
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elseif RAIN then
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if noiseh > HUT then
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rain = true
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end
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end
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if snow then
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake1.png",
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player:get_player_name()
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)
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake2.png",
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player:get_player_name()
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)
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake3.png",
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player:get_player_name()
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)
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minetest.add_particle(
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{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
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{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
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{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
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32,
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2.8,
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false,
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"snowdrift_snowflake4.png",
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player:get_player_name()
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)
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end
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if rain then
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for drop = 1, DROPS do
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minetest.add_particle(
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{
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x = ppos.x - 16 + math.random(0, 32),
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y = ppos.y + 16,
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z = ppos.z - 16 + math.random(0, 32)
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}, -- posi
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{x = 0, y = -8, z = -1}, -- velo
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{x = 0, y = 0, z = 0}, -- acce
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4,
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2.8,
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false,
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"snowdrift_raindrop.png",
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player:get_player_name()
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)
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end
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end
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end
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end)
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