88 lines
2.1 KiB
Lua
88 lines
2.1 KiB
Lua
local world = {}
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local BASE_TIME = 0.2 * climate_mod.settings.time_spread
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local WIND_SPREAD = 600
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local WIND_SCALE = 2
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local HEAT_SPREAD = 400
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local HEAT_SCALE = 0.3
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local HUMIDITY_SPREAD = 150
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local HUMIDITY_SCALE = 1
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local HUMIDITY_BASE_SPREAD = 800
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local HUMIDITY_BASE_SCALE = 20
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local nobj_wind_x
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local nobj_wind_z
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local nobj_heat
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local nobj_humidity
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local nobj_humidity_base
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local pn_wind_speed_x = {
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offset = 0,
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scale = WIND_SCALE,
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spread = {x = WIND_SPREAD, y = WIND_SPREAD, z = WIND_SPREAD},
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seed = 31441,
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octaves = 2,
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persist = 0.5,
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lacunarity = 2
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}
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local pn_wind_speed_z = {
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offset = 0,
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scale = WIND_SCALE,
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spread = {x = WIND_SPREAD, y = WIND_SPREAD, z = WIND_SPREAD},
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seed = 938402,
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octaves = 2,
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persist = 0.5,
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lacunarity = 2
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}
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local pn_heat = {
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offset = 1,
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scale = HEAT_SCALE,
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spread = {x = HEAT_SPREAD, y = HEAT_SPREAD, z = HEAT_SPREAD},
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seed = 235896,
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octaves = 2,
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persist = 0.5,
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lacunarity = 2
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}
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local pn_humidity = {
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offset = 1,
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scale = HUMIDITY_SCALE,
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spread = {x = HUMIDITY_SPREAD, y = HUMIDITY_SPREAD, z = HUMIDITY_SPREAD},
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seed = 8374061,
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octaves = 2,
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persist = 0.5,
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lacunarity = 2,
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flags = "noeased"
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}
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local function update_wind(timer)
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nobj_wind_x = nobj_wind_x or minetest.get_perlin(pn_wind_speed_x)
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nobj_wind_z = nobj_wind_z or minetest.get_perlin(pn_wind_speed_z)
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local n_wind_x = nobj_wind_x:get_2d({x = timer, y = 0})
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local n_wind_z = nobj_wind_z:get_2d({x = timer, y = 0})
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climate_mod.state:set_float("wind_x", n_wind_x)
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climate_mod.state:set_float("wind_z", n_wind_z)
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end
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local function update_heat(timer)
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nobj_heat = nobj_heat or minetest.get_perlin(pn_heat)
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local n_heat = nobj_heat:get_2d({x = timer, y = 0})
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climate_mod.state:set_float("heat_random", n_heat)
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end
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local function update_humidity(timer)
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nobj_humidity = nobj_humidity or minetest.get_perlin(pn_humidity)
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local n_humidity = nobj_humidity:get_2d({x = timer * 3, y = 0})
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climate_mod.state:set_float("humidity_random", n_humidity)
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end
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function world.update_status(timer)
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timer = math.floor(timer * BASE_TIME)
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update_wind(timer)
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update_heat(timer)
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update_humidity(timer)
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end
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return world |