mirror of
https://github.com/sys4-fr/server-nalc.git
synced 2024-11-13 22:10:31 +01:00
194 lines
6.9 KiB
Lua
Executable File
194 lines
6.9 KiB
Lua
Executable File
-- snowdrift 0.3.0 by paramat
|
|
-- For latest stable Minetest and back to 0.4.9 dev after 13/01/14
|
|
-- Depends default
|
|
-- Licenses: code WTFPL, textures CC BY-SA
|
|
|
|
-- snowfall heaviness parameter
|
|
-- rain off by default
|
|
-- snow and rain heavier by default
|
|
-- update particle spawn format
|
|
|
|
-- Parameters
|
|
|
|
local SCALP = 4 -- Time scale for precipitation in minutes
|
|
local PRET = 0.3 -- -1 to 1. Precipitation threshold: 1 none, -1 continuous, -0.3 two thirds the time, 0 half the time, 0.3 one third the time
|
|
local PPPCHA = 0.1 -- 0 to 1. Per player processing chance. Controls and randomizes processing load
|
|
local SETCHA = 0.1 -- 0 to 1. Snow settling chance
|
|
local FLAKES = 1 -- Snowfall heaviness. Try 1 on slower computers
|
|
local DROPS = 2 -- Rainfall heaviness. Reduce on slower computers
|
|
local SNOW = true -- Snowfall below temperature threshold
|
|
local SETTLE = false -- Snow collects on ground within 32 nodes of player
|
|
local RAIN = false -- Rain above humidity threshold
|
|
local THOVER = false -- Instead use a temperature and humidity system with
|
|
-- snow in overlap of cold and humid areas, else rain in humid areas
|
|
|
|
-- Temperature noise parameters
|
|
local SEEDT = 112 -- 112 These are default noise parameters from snow mod by Splizard
|
|
local OCTAT = 3 -- 3 use these for snowfall in those snow biomes
|
|
local PERST = 0.5 -- 0.5
|
|
local SCALT = 150 -- 150
|
|
local TET = -0.53 -- -0.53 Temperature threshold for snow. Negative because here this noise is temperature, in snow mod it's coldness
|
|
|
|
-- Humidity noise parameters
|
|
local SEEDH = 72384 -- 72384 These are default noise parameters for mapgen V6 humidity
|
|
local OCTAH = 4 -- 4 note these cause rain in deserts
|
|
local PERSH = 0.66 -- 0.66
|
|
local SCALH = 500 -- 500
|
|
local HUT = 0 -- Humidity threshold for rain
|
|
|
|
-- Stuff
|
|
|
|
snowdrift = {}
|
|
|
|
-- Globalstep function
|
|
|
|
minetest.register_globalstep(function(dtime)
|
|
local perlinp = minetest.get_perlin(813, 1, 0.5, SCALP)
|
|
if perlinp:get2d({x = os.clock()/60, y = 0}) < PRET then
|
|
return
|
|
end
|
|
for _, player in ipairs(minetest.get_connected_players()) do
|
|
if math.random() > PPPCHA or player:getpos().y < -19600 then
|
|
return
|
|
end
|
|
local ppos = player:getpos()
|
|
if minetest.get_node_light(ppos, 0.5) ~= 15 then
|
|
return
|
|
end
|
|
local pposx = math.floor(ppos.x)
|
|
local pposy = math.floor(ppos.y)
|
|
local pposz = math.floor(ppos.z)
|
|
local snow = false
|
|
local rain = false
|
|
local noiset
|
|
local noiseh
|
|
if SNOW or THOVER then
|
|
local perlint = minetest.get_perlin(SEEDT, OCTAT, PERST, SCALT)
|
|
noiset = perlint:get2d({x = pposx, y = pposz})
|
|
end
|
|
if RAIN or THOVER then
|
|
local perlinh = minetest.get_perlin(SEEDH, OCTAH, PERSH, SCALH)
|
|
noiseh = perlinh:get2d({x = pposx, y = pposz})
|
|
end
|
|
if THOVER then
|
|
if noiset < TET and noiseh > HUT then
|
|
snow = true
|
|
elseif noiseh > HUT then
|
|
rain = true
|
|
end
|
|
elseif SNOW 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
|
|
for flake = 1, FLAKES do
|
|
minetest.add_particle({
|
|
pos = {x=pposx-32+math.random(0,63), y=pposy+16, z=pposz-16+math.random(0,63)},
|
|
vel = {x=math.random()/5-0.1, y=math.random()/5-1.1, z=math.random()/5-1.1},
|
|
acc = {x=math.random()/50-0.01, y=math.random()/50-0.01, z=math.random()/50-0.01},
|
|
expirationtime = 32,
|
|
size = 2.8,
|
|
collisiondetection = false,
|
|
vertical = false,
|
|
texture = "snowdrift_snowflake1.png",
|
|
playername = player:get_player_name(),
|
|
})
|
|
minetest.add_particle({
|
|
pos = {x=pposx-32+math.random(0,63), y=pposy+16, z=pposz-16+math.random(0,63)},
|
|
vel = {x=math.random()/5-0.1, y=math.random()/5-1.1, z=math.random()/5-1.1},
|
|
acc = {x=math.random()/50-0.01, y=math.random()/50-0.01, z=math.random()/50-0.01},
|
|
expirationtime = 32,
|
|
size = 2.8,
|
|
collisiondetection = false,
|
|
vertical = false,
|
|
texture = "snowdrift_snowflake2.png",
|
|
playername = player:get_player_name(),
|
|
})
|
|
minetest.add_particle({
|
|
pos = {x=pposx-32+math.random(0,63), y=pposy+16, z=pposz-16+math.random(0,63)},
|
|
vel = {x=math.random()/5-0.1, y=math.random()/5-1.1, z=math.random()/5-1.1},
|
|
acc = {x=math.random()/50-0.01, y=math.random()/50-0.01, z=math.random()/50-0.01},
|
|
expirationtime = 32,
|
|
size = 2.8,
|
|
collisiondetection = false,
|
|
vertical = false,
|
|
texture = "snowdrift_snowflake3.png",
|
|
playername = player:get_player_name(),
|
|
})
|
|
minetest.add_particle({
|
|
pos = {x=pposx-32+math.random(0,63), y=pposy+16, z=pposz-16+math.random(0,63)},
|
|
vel = {x=math.random()/5-0.1, y=math.random()/5-1.1, z=math.random()/5-1.1},
|
|
acc = {x=math.random()/50-0.01, y=math.random()/50-0.01, z=math.random()/50-0.01},
|
|
expirationtime = 32,
|
|
size = 2.8,
|
|
collisiondetection = false,
|
|
vertical = false,
|
|
texture = "snowdrift_snowflake4.png",
|
|
playername = player:get_player_name(),
|
|
})
|
|
end
|
|
if SETTLE and math.random() < SETCHA then -- settling snow
|
|
local sposx = pposx - 32 + math.random(0, 63)
|
|
local sposz = pposz - 32 + math.random(0, 63)
|
|
if minetest.get_node_light({x=sposx, y=pposy+32, z=sposz}, 0.5) == 15 then -- check under open sky
|
|
for y = pposy + 32, pposy - 64, -1 do -- find surface
|
|
local nodename = minetest.get_node({x=sposx, y=y, z=sposz}).name
|
|
if nodename ~= "air" and nodename ~= "ignore" then
|
|
if nodename == "default:desert_sand" -- no snow on these
|
|
or nodename == "default:desert_stone"
|
|
or nodename == "default:water_source" then
|
|
break
|
|
else -- check node drawtype
|
|
local drawtype = minetest.registered_nodes[nodename].drawtype
|
|
if drawtype == "normal"
|
|
or drawtype == "glasslike"
|
|
or drawtype == "glasslike_framed"
|
|
or drawtype == "allfaces"
|
|
or drawtype == "allfaces_optional" then
|
|
if nodename == "default:dirt_with_grass" then
|
|
minetest.add_node({x=sposx, y=y, z=sposz}, {name="default:dirt_with_snow"})
|
|
end
|
|
minetest.add_node({x=sposx, y=y+1, z=sposz}, {name="default:snow"})
|
|
break
|
|
elseif drawtype == "plantlike" then -- dirt with snow added under plants
|
|
local unodename = minetest.get_node({x=sposx, y=y-1, z=sposz}).name
|
|
if unodename == "default:dirt_with_grass" then
|
|
minetest.add_node({x=sposx, y=y-1, z=sposz}, {name="default:dirt_with_snow"})
|
|
end
|
|
break
|
|
else
|
|
break
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
if rain then
|
|
for drop = 1, DROPS do
|
|
minetest.add_particle({
|
|
pos = {x=pposx-24+math.random(0,48), y=pposy+16, z=pposz-24+math.random(0,48)},
|
|
vel = {x=0, y=-8, z=-1},
|
|
acc = {x=0, y=0, z=0},
|
|
expirationtime = 4,
|
|
size = 2.8,
|
|
collisiondetection = false,
|
|
vertical = false,
|
|
texture = "snowdrift_raindrop.png",
|
|
playername = player:get_player_name(),
|
|
})
|
|
end
|
|
end
|
|
end
|
|
end)
|