Camas/mods/weather/init.lua

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--
-- Weather mod
-- By Kaadmy, for Pixture
--
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local S = minetest.get_translator("weather")
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weather = {}
weather.weather = "clear"
weather.types = {"storm", "snowstorm", "clear"}
local function addvec(v1, v2)
return {x = v1.x + v2.x, y = v1.y + v2.y, z = v1.z + v2.z}
end
local snow_enable = minetest.settings:get_bool("weather_snow_enable") or false
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local weather_soundspec=nil
local mapseed = minetest.get_mapgen_setting("seed")
local weather_pr=PseudoRandom(mapseed + 2387)
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local sound_min_height = -20 -- Below -20m you can't hear weather
local default_cloud_state = nil
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local function play_sound()
if weather_soundspec ~= nil then
minetest.sound_stop(weather_soundspec)
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end
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if weather.weather == "storm" then
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for _, player in ipairs(minetest.get_connected_players()) do
if player:get_pos().y > sound_min_height then
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weather_soundspec = minetest.sound_play(
{
name = "weather_storm",
to_player = player:get_player_name()
}
)
end
end
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minetest.after(18, play_sound)
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return
elseif weather.weather == "snowstorm" then
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for _, player in ipairs(minetest.get_connected_players()) do
if player:get_pos().y > sound_min_height then
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weather_soundspec = minetest.sound_play(
{
name = "weather_snowstorm",
to_player = player:get_player_name()
}
)
end
end
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minetest.after(7, play_sound)
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return
end
minetest.after(3, play_sound)
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end
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local function setweather_type(type)
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local valid = false
for i = 1, #weather.types do
if weather.types[i] == type then
valid = true
end
end
if valid then
weather.weather = type
play_sound()
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return true
else
return false
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end
end
minetest.register_globalstep(
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function(dtime)
if minetest.settings:get_bool("weather_enable") then
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if weather_pr:next(0, 5000) < 1 then
local weathertype = weather_pr:next(0, 19)
-- on avg., every 1800 frames the weather.weather will change to one of:
-- 13/20 chance of clear weather
-- 6/20 chance or stormy weather
-- 1/20 chance of snowstorm weather
if weathertype < 13 then
weather.weather = "clear"
elseif weathertype < 19 then
weather.weather = "storm"
elseif weathertype < 20 and snow_enable then
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weather.weather = "snowstorm"
end
end
end
local light = (minetest.get_timeofday() * 2)
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if light > 1 then
light = 1 - (light - 1)
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end
light = (light * 0.5) + 0.15
local skycol = math.floor(light * 190)
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for _, player in ipairs(minetest.get_connected_players()) do
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if weather.weather == "storm" or weather.weather == "snowstorm" then
player:set_sky({r = skycol, g = skycol, b = skycol * 1.2}, "plain", {}, true)
if default_cloud_state == nil then
default_cloud_state = player:get_clouds()
end
player:set_clouds({
density = 0.5,
color = "#a0a0a0f0",
ambient = "#000000",
height = 100,
thickness = 40,
speed = {x = -2, y = 1},
})
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player:override_day_night_ratio(light)
else
player:set_sky(nil, "regular", {}, true)
if default_cloud_state ~= nil then
player:set_clouds(default_cloud_state)
end
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player:override_day_night_ratio(nil)
end
local p=player:get_pos()
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if weather.weather == "storm" then
if minetest.get_node_light({x=p.x, y=p.y+15, z=p.z}, 0.5) == 15 then
local minpos = addvec(player:get_pos(), {x = -15, y = 15, z = -15})
local maxpos = addvec(player:get_pos(), {x = 15, y = 10, z = 15})
minetest.add_particlespawner(
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{
amount = 30,
time = 0.5,
minpos = minpos,
maxpos = maxpos,
minvel = {x = 0, y = -20, z = 0},
maxvel = {x = 0, y = -20, z = 0},
minexptime = 0.9,
maxexptime = 1.1,
minsize = 2,
maxsize = 3,
collisiondetection = true,
collision_removal = true,
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vertical = true,
texture = "weather_rain.png",
playername = player:get_player_name()
}
)
end
elseif weather.weather == "snowstorm" then
if math.random(0, 6000*dtime) <= 1 then
local hp = player:get_hp()
if minetest.get_node_light(p) == 15 then
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player:set_hp(hp-1)
end
end
if minetest.get_node_light({x=p.x, y=p.y+15, z=p.z}, 0.5) == 15 then
local minpos = addvec(player:get_pos(), {x = -30, y = 20, z = -30})
local maxpos = addvec(player:get_pos(), {x = 30, y = 15, z = 30})
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local vel = {x = 16.0, y = -8, z = 13.0}
local acc = {x = -16.0, y = -8, z = -13.0}
minetest.add_particlespawner(
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{
amount = 8,
time = 0.4,
minpos = minpos,
maxpos = maxpos,
minvel = {x=-vel.x, y=vel.y, z=-vel.z},
maxvel = vel,
minacc = acc,
maxacc = acc,
minexptime = 1.0,
maxexptime = 1.4,
minsize = 3,
maxsize = 4,
collisiondetection = true,
collision_removal = true,
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vertical = false,
texture = "weather_snowflake.png",
playername = player:get_player_name()
}
)
end
end
end
end
)
minetest.register_privilege(
"weather",
{
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description = S("Can change the weather using the /weather command"),
give_to_singleplayer = false
})
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minetest.register_chatcommand(
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"weather",
{
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params = "storm | snowstorm | clear",
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description = S("Change the weather"),
privs = {weather = true},
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func = function(name, param)
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local weather_set = setweather_type(param)
if not weather_set then
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return false, S("Incorrect weather. Valid weathers are “storm”, “snowstorm” and “clear”.")
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else
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return true, S("Weather changed.")
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end
end
})
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setweather_type("clear")
default.log("mod:weather", "loaded")