climate_api/lib/skybox_merger.lua

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local mod_lighting_monoid = minetest.get_modpath("lighting_monoid") ~= nil
local default_sky = {
sky_data = {
base_color = nil,
type = "regular",
textures = nil,
clouds = true,
sky_color = {
day_sky = "#8cbafa",
day_horizon = "#9bc1f0",
dawn_sky = "#b4bafa",
dawn_horizon = "#bac1f0",
night_sky = "#006aff",
night_horizon = "#4090ff",
indoors = "#646464",
fog_tint_type = "default"
}
},
cloud_data = {
density = 0.4,
color = "#fff0f0e5",
ambient = "#000000",
height = 120,
thickness = 16,
speed = {x=0, z=-2}
},
sun_data = {
visible = true,
texture = "sun.png",
tonemap = "sun_tonemap.png",
sunrise = "sunrisebg.png",
sunrise_visible = true,
scale = 1
},
moon_data = {
visible = true,
texture = "moon.png",
tonemap = "moon_tonemap.png",
scale = 1
},
star_data = {
visible = true,
count = 1000,
star_color = "#ebebff69",
scale = 1
},
light_data = {
shadow_intensity = 0.33,
saturation = 1
}
}
local skybox = {}
local layers = {}
-- from https://stackoverflow.com/a/29133654
-- merges two tables together
-- if in conflict, b will override values of a
local function merge_tables(a, b)
if type(a) == "table" and type(b) == "table" then
for k,v in pairs(b) do
if type(v)=="table" and type(a[k] or false)=="table" then
merge_tables(a[k],v)
else a[k]=v end
end
end
return a
end
local function set_skybox(playername, sky)
local player = minetest.get_player_by_name(playername)
if player == nil or not player.get_stars then return end
player:set_sky(sky.sky_data)
player:set_clouds(sky.cloud_data)
player:set_moon(sky.moon_data)
player:set_sun(sky.sun_data)
player:set_stars(sky.star_data)
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local lighting = {
shadows = { intensity = sky.light_data.shadow_intensity },
saturation = sky.light_data.saturation
}
if mod_lighting_monoid then
lighting_monoid:add_change(player, lighting, "climate_api:merged_lighting")
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lighting_monoid:del_change(player, "lighting_monoid:base_shadow")
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elseif player.set_lighting then
player:set_lighting(lighting)
end
end
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function skybox.update(playername)
local p_layers = layers[playername]
local sky = table.copy(default_sky)
if p_layers == nil then p_layers = {} end
local numbered_layers = {}
for layer, values in pairs(p_layers) do
table.insert(numbered_layers, values)
end
table.sort(numbered_layers, function(left, right)
if left.priority == nil then left.priority = 1 end
if right.priority == nil then right.priority = 1 end
return left.priority < right.priority
end)
for i = 1, #numbered_layers do
sky = merge_tables(sky, numbered_layers[i])
end
set_skybox(playername, sky)
end
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function skybox.add(playername, name, sky)
if layers[playername] == nil then layers[playername] = {} end
layers[playername][name] = sky
end
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function skybox.remove(playername, name)
if layers[playername] == nil or layers[playername][name] == nil then return end
layers[playername][name] = nil
end
minetest.register_on_leaveplayer(function(player)
local playername = player:get_player_name()
layers[playername] = nil
end)
return skybox