snowdrift/init.lua

139 lines
4.3 KiB
Lua

-- snowdrift 0.2.2 by paramat
-- For latest stable Minetest and back to 0.4.6
-- Depends default
-- Licenses: code WTFPL, textures CC BY-SA
-- Removed snow noise offset
-- Parameters
local PROCHA = 0.2 -- (0 to 1) -- Per player processing chance, randomizes and spreads processing load
local DROPS = 8 -- Rainfall heaviness
local SNOWV6 = true -- Snowfall in snow biomes of snow mod by Splizard
local RAIN = false -- Rain above humidity threshold
local THOVER = false -- Instea use a temperature and humidity system with
-- snow in overlap of cold and humid
-- else rain in humid areas
local SEEDT = 112 -- 112 -- If THOVER = true, set these to your mapgen's temperature noise parameters
local OCTAT = 3 -- 3
local PERST = 0.5 -- 0.5
local SCALT = 150 -- 150
local TET = -0.53 -- -0.53 -- Temperature threshold for snow
-- If SNOWV6 = true set to -0.53
local SEEDH = 72384 -- 72384 -- Set these to your mapgen's humidity noise parameters
local OCTAH = 4 -- 4
local PERSH = 0.66 -- 0.66
local SCALH = 500 -- 500
local HUT = 0.5 -- 0.5 -- Humidity threshold for rain
-- Stuff
snowdrift = {}
-- Globalstep function
minetest.register_globalstep(function(dtime)
-- TODO if not raining at this time then return
for _, player in ipairs(minetest.get_connected_players()) do
if math.random() > PROCHA then
return
end
local ppos = player:getpos()
if minetest.get_node_light(ppos, 0.5) ~= 15 then
return
end
local snow = false
local rain = false
local noiset
local noiseh
if SNOWV6 or THOVER then
local perlint = minetest.get_perlin(SEEDT, OCTAT, PERST, SCALT)
noiset = perlint:get2d({x = ppos.x, y = ppos.z})
end
if RAIN or THOVER then
local perlinh = minetest.get_perlin(SEEDH, OCTAH, PERSH, SCALH)
noiseh = perlinh:get2d({x = ppos.x, y = ppos.z})
end
if THOVER then
if noiset < TET and noiseh > HUT then
snow = true
elseif noiseh > HUT then
rain = true
end
elseif SNOWV6 then
if -noiset < TET then -- negative sign because snow mod noise is 'coldness'
snow = true
elseif RAIN then
if noiseh > HUT then
rain = true
end
end
elseif RAIN then
if noiseh > HUT then
rain = true
end
end
if snow then
minetest.add_particle(
{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
32,
2.8,
false,
"snowdrift_snowflake1.png",
player:get_player_name()
)
minetest.add_particle(
{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
32,
2.8,
false,
"snowdrift_snowflake2.png",
player:get_player_name()
)
minetest.add_particle(
{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
32,
2.8,
false,
"snowdrift_snowflake3.png",
player:get_player_name()
)
minetest.add_particle(
{x = ppos.x - 64 + math.random(0, 128), y = ppos.y + 16, z = ppos.z - 48 + math.random(0, 128)}, -- posi
{x = math.random() / 5 - 0.1, y = math.random() / 5 - 1.1, z = math.random() / 5 - 1.1}, -- velo
{x = math.random() / 50 - 0.01, y = math.random() / 50 - 0.01, z = math.random() / 50 - 0.01}, -- acce
32,
2.8,
false,
"snowdrift_snowflake4.png",
player:get_player_name()
)
end
if rain then
for drop = 1, DROPS do
minetest.add_particle(
{
x = ppos.x - 16 + math.random(0, 32),
y = ppos.y + 16,
z = ppos.z - 16 + math.random(0, 32)
}, -- posi
{x = 0, y = -8, z = -1}, -- velo
{x = 0, y = 0, z = 0}, -- acce
4,
2.8,
false,
"snowdrift_raindrop.png",
player:get_player_name()
)
end
end
end
end)