climate_api/lib/world.lua

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local world = {}
local WIND_SPREAD = 600
local WIND_SCALE = 2
local HEAT_SPREAD = 200
local HEAT_SCALE = 0.3
local HUMIDITY_SPREAD = 60
local HUMIDITY_SCALE = 0.5
local HUMIDITY_BASE_SPREAD = 600
local HUMIDITY_BASE_SCALE = 40
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local nobj_wind_x
local nobj_wind_z
local nobj_heat
local nobj_humidity
local nobj_humidity_base
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local pn_wind_speed_x = {
offset = 0,
scale = WIND_SCALE * climate_mod.settings.time_spread,
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spread = {x = WIND_SPREAD, y = WIND_SPREAD, z = WIND_SPREAD},
seed = 31441,
octaves = 2,
persist = 0.5,
lacunarity = 2
}
local pn_wind_speed_z = {
offset = 0,
scale = WIND_SCALE * climate_mod.settings.time_spread,
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spread = {x = WIND_SPREAD, y = WIND_SPREAD, z = WIND_SPREAD},
seed = 938402,
octaves = 2,
persist = 0.5,
lacunarity = 2
}
local pn_heat = {
offset = 1,
scale = HEAT_SCALE * climate_mod.settings.time_spread,
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spread = {x = HEAT_SPREAD, y = HEAT_SPREAD, z = HEAT_SPREAD},
seed = 24,
octaves = 2,
persist = 0.5,
lacunarity = 2
}
local pn_humidity = {
offset = 1,
scale = HUMIDITY_SCALE * climate_mod.settings.time_spread,
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spread = {x = HUMIDITY_SPREAD, y = HUMIDITY_SPREAD, z = HUMIDITY_SPREAD},
seed = 8374061,
octaves = 3,
persist = 0.5,
lacunarity = 2
}
local pn_humidity_base = {
offset = 50,
scale = HUMIDITY_BASE_SCALE * climate_mod.settings.time_spread,
spread = {x = HUMIDITY_BASE_SPREAD, y = HUMIDITY_BASE_SPREAD, z = HUMIDITY_BASE_SPREAD},
seed = 3803465,
octaves = 2,
persist = 0.5,
lacunarity = 2
}
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local function update_wind(timer)
nobj_wind_x = nobj_wind_x or minetest.get_perlin(pn_wind_speed_x)
nobj_wind_z = nobj_wind_z or minetest.get_perlin(pn_wind_speed_z)
local n_wind_x = nobj_wind_x:get_2d({x = timer, y = 0})
local n_wind_z = nobj_wind_z:get_2d({x = timer, y = 0})
climate_mod.state:set_float("wind_x", n_wind_x)
climate_mod.state:set_float("wind_z", n_wind_z)
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end
local function update_heat(timer)
nobj_heat = nobj_heat or minetest.get_perlin(pn_heat)
local n_heat = nobj_heat:get_2d({x = timer, y = 0})
climate_mod.state:set_float("heat_random", n_heat)
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end
local function update_humidity(timer)
nobj_humidity = nobj_humidity or minetest.get_perlin(pn_humidity)
local n_humidity = nobj_humidity:get_2d({x = timer, y = 0})
climate_mod.state:set_float("humidity_random", n_humidity)
nobj_humidity_base = nobj_humidity_base or minetest.get_perlin(pn_humidity_base)
local n_humidity_base = nobj_humidity_base:get_2d({x = timer, y = 0})
climate_mod.state:set_float("humidity_base", n_humidity_base)
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end
function world.update_status(timer)
update_wind(timer)
update_heat(timer)
update_humidity(timer)
end
return world