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minetest-skygen
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Corvus262 2022-04-08 14:43:52 +02:00
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396
colors.lua Normal file
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-- Day and Day Horizon are used as base colors for the biome
-- These two are then colorized by the Sun Tint and Moon Tint into Dawn and Night color variations respectively
-- This is done to reduce redundancy, as I found myself just colorizing like that when choosing the colors anyway
-- Dawn is generated using inverted colors, as horizon tends to be the darker color on the Day
-- Stars are colorized using the sun tint as well
-- Clouds are changed in three different functions already and colorizing them would be a bit more expensive due to the required transition functions
skygen.biomes = {
cold_desert = {
name = "Cold Desert",
colors = {
{182, 232, 230}, -- Day
{192, 189, 178}, -- Day Horizon
{230, 230, 0}, -- Sun Tint
{160, 199, 246}, -- Moon Tint
}
},
cold_desert_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{230, 230, 0}, -- Sun Tint
{160, 199, 246}, -- Moon Tint
}
},
cold_desert_ocean = {
name = "Cold Desert",
colors = {
{210, 239, 254}, -- Day
{204, 204, 204}, -- Day Horizon
{230, 230, 0}, -- Sun Tint
{160, 199, 246}, -- Moon Tint
}
},
desert = {
name = "Desert",
colors = {
{255, 255, 121}, -- Day
{203, 158, 95}, -- Day Horizon
{241, 99, 0}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
desert_ocean = {
name = "Desert",
colors = {
{253, 227, 60}, -- Day
{186, 141, 87}, -- Day Horizon
{241, 99, 0}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
desert_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{241, 99, 0}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
taiga = {
name = "Taiga",
colors = {
{160, 199, 246}, -- Day
{88, 48, 125}, -- Day Horizon
{200, 37, 127}, -- Sun Tint
{0, 219, 219}, -- Moon Tint
}
},
taiga_ocean = {
name = "Taiga",
colors = {
{141, 224, 222}, -- Day
{87, 61, 250}, -- Day Horizon
{200, 37, 127}, -- Sun Tint
{0, 219, 219}, -- Moon Tint
}
},
taiga_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{200, 37, 127}, -- Sun Tint
{0, 219, 219}, -- Moon Tint
}
},
snowy_grassland = {
name = "Snowy Grassland",
colors = {
{164, 164, 164}, -- Day
{255, 165, 165}, -- Day Horizon
{214, 241, 254}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
snowy_grassland_ocean = {
name = "Snowy Grassland",
colors = {
{16, 98, 174}, -- Day
{0, 182, 182}, -- Day Horizon
{214, 241, 254}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
snowy_grassland_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{214, 241, 254}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
grassland = {
name = "Grassland",
colors = {
{160, 199, 246}, -- Day
{39, 115, 185}, -- Day Horizon
{222, 99, 0}, -- Sun Tint
{18, 103, 182}, -- Moon Tint
}
},
grassland_dunes = {
name = "Grassland",
colors = {
{184, 221, 251}, -- Day
{196, 193, 142}, -- Day Horizon
{222, 99, 0}, -- Sun Tint
{18, 103, 182}, -- Moon Tint
}
},
grassland_ocean = {
name = "Grassland",
colors = {
{141, 224, 222}, -- Day
{160, 199, 246}, -- Day Horizon
{222, 99, 0}, -- Sun Tint
{18, 103, 182}, -- Moon Tint
}
},
grassland_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{222, 99, 0}, -- Sun Tint
{18, 103, 182}, -- Moon Tint
}
},
coniferous_forest = {
name = "Coniferous Forest",
colors = {
{131, 156, 67}, -- Day
{114, 139, 53}, -- Day Horizon
{244, 178, 0}, -- Sun Tint
{0, 149, 157}, -- Moon Tint
}
},
coniferous_forest_dunes = {
name = "Coniferous Forest",
colors = {
{194, 194, 194}, -- Day
{114, 139, 53}, -- Day Horizon
{244, 178, 0}, -- Sun Tint
{0, 149, 157}, -- Moon Tint
}
},
coniferous_forest_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{244, 178, 0}, -- Sun Tint
{0, 149, 157}, -- Moon Tint
}
},
coniferous_forest_ocean = {
name = "Coniferous Forest",
colors = {
{192, 189, 178}, -- Day
{65, 107, 53}, -- Day Horizon
{244, 178, 0}, -- Sun Tint
{0, 149, 157}, -- Moon Tint
}
},
deciduous_forest = {
name = "Deciduous Forest",
colors = {
{214, 241, 254}, -- Day
{62, 157, 185}, -- Day Horizon
{233, 184, 9}, -- Sun Tint
{39, 115, 185}, -- Moon Tint
}
},
deciduous_forest_shore = {
name = "Deciduous Forest",
colors = {
{192, 233, 254}, -- Day
{202, 160, 97}, -- Day Horizon
{233, 184, 9}, -- Sun Tint
{39, 115, 185}, -- Moon Tint
}
},
deciduous_forest_ocean = {
name = "Deciduous Forest",
colors = {
{184, 221, 251}, -- Day
{36, 151, 183}, -- Day Horizon
{233, 184, 9}, -- Sun Tint
{39, 115, 185}, -- Moon Tint
}
},
deciduous_forest_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{233, 184, 9}, -- Sun Tint
{39, 115, 185}, -- Moon Tint
}
},
rainforest = {
name = "Rainforest",
colors = {
{89, 142, 40}, -- Day
{33, 48, 23}, -- Day Horizon
{243, 54, 0}, -- Sun Tint
{184, 221, 251}, -- Moon Tint
}
},
rainforest_swamp = {
name = "Rainforest",
colors = {
{151, 141, 96}, -- Day
{57, 82, 15}, -- Day Horizon
{243, 54, 0}, -- Sun Tint
{184, 221, 251}, -- Moon Tint
}
},
rainforest_ocean = {
name = "Rainforest",
colors = {
{164, 164, 164}, -- Day
{57, 82, 15}, -- Day Horizon
{243, 54, 0}, -- Sun Tint
{184, 221, 251}, -- Moon Tint
}
},
rainforest_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{243, 54, 0}, -- Sun Tint
{184, 221, 251}, -- Moon Tint
}
},
icesheet = {
name = "Icesheet",
colors = {
{0, 73, 73}, -- Day
{0, 219, 219}, -- Day Horizon
{222, 222, 222}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
icesheet_ocean = {
name = "Icesheet",
colors = {
{16, 94, 169}, -- Day
{39, 152, 185}, -- Day Horizon
{222, 222, 222}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
icesheet_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{222, 222, 222}, -- Sun Tint
{87, 61, 250}, -- Moon Tint
}
},
tundra_highland = {
name = "Tundra",
colors = {
{0, 36, 36}, -- Day
{17, 144, 180}, -- Day Horizon
{204, 204, 0}, -- Sun Tint
{88, 48, 125}, -- Moon Tint
}
},
tundra = {
name = "Tundra",
colors = {
{44, 59, 154}, -- Day
{16, 135, 169}, -- Day Horizon
{204, 204, 0}, -- Sun Tint
{88, 48, 125}, -- Moon Tint
}
},
tundra_beach = {
name = "Tundra",
colors = {
{76, 76, 76}, -- Day
{164, 164, 164}, -- Day Horizon
{204, 204, 0}, -- Sun Tint
{88, 48, 125}, -- Moon Tint
}
},
tundra_ocean = {
name = "Tundra",
colors = {
{44, 44, 44}, -- Day
{16, 94, 169}, -- Day Horizon
{204, 204, 0}, -- Sun Tint
{88, 48, 125}, -- Moon Tint
}
},
tundra_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{204, 204, 0}, -- Sun Tint
{88, 48, 125}, -- Moon Tint
}
},
sandstone_desert = {
name = "Sandstone Desert",
colors = {
{169, 209, 248}, -- Day
{206, 201, 156}, -- Day Horizon
{244, 190, 0}, -- Sun Tint
{44, 59, 154}, -- Moon Tint
}
},
sandstone_desert_ocean = {
name = "Sandstone Desert",
colors = {
{61, 126, 186}, -- Day
{191, 186, 129}, -- Day Horizon
{244, 190, 0}, -- Sun Tint
{44, 59, 154}, -- Moon Tint
}
},
sandstone_desert_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{244, 190, 0}, -- Sun Tint
{44, 59, 154}, -- Moon Tint
}
},
savanna = {
name = "Savanna",
colors = {
{34, 112, 184}, -- Day
{236, 190, 152}, -- Day Horizon
{170, 24, 0}, -- Sun Tint
{53, 29, 75}, -- Moon Tint
}
},
savanna_shore = {
name = "Savanna",
colors = {
{62, 157, 185}, -- Day
{224, 134, 110}, -- Day Horizon
{170, 24, 0}, -- Sun Tint
{53, 29, 75}, -- Moon Tint
}
},
savanna_ocean = {
name = "Savanna",
colors = {
{34, 112, 184}, -- Day
{238, 192, 0}, -- Day Horizon
{170, 24, 0}, -- Sun Tint
{53, 29, 75}, -- Moon Tint
}
},
savanna_under = {
name = "Underground",
colors = {
{192, 192, 192}, -- Day
{128, 128, 128}, -- Day Horizon
{170, 24, 0}, -- Sun Tint
{53, 29, 75}, -- Moon Tint
}
},
}

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init.lua Normal file
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-- Dont forget to set cloud radius to 26 in minetest's settings
skygen = {}
skygen.start = 1 -- For first time run
skygen.biome_names = {
"cold_desert",
"cold_desert_under",
"cold_desert_ocean",
"desert",
"desert_ocean",
"desert_under",
"taiga",
"taiga_ocean",
"taiga_under",
"snowy_grassland",
"snowy_grassland_under",
"snowy_grassland_ocean",
"grassland",
"grassland_ocean",
"grassland_dunes",
"grassland_under",
"coniferous_forest",
"coniferous_forest_dunes",
"coniferous_forest_ocean",
"coniferous_forest_under",
"deciduous_forest",
"deciduous_forest_ocean",
"deciduous_forest_under",
"deciduous_forest_shore",
"rainforest",
"rainforest_ocean",
"rainforest_swamp",
"rainforest_under",
"icesheet",
"icesheet_ocean",
"icesheet_under",
"tundra",
"tundra_highland",
"tundra_beach",
"tundra_ocean",
"tundra_under",
"sandstone_desert",
"sandstone_desert_ocean",
"sandstone_desert_under",
"savanna",
"savanna_shore",
"savanna_ocean",
"savanna_under"
}
local path = minetest.get_modpath("skygen")
dofile(path.."/colors.lua")
skygen.transition_state = {}
skygen.previous_biome = {}
skygen.transition_frames = 16
skygen.set_sky = function(player, biome_name)
local base_values = skygen.biomes[biome_name].colors
player:set_sky({
type = "regular",
sky_color = {
day_sky = {r = base_values[1][1], g = base_values[1][2], b = base_values[1][3]},
day_horizon = {r = base_values[2][1], g = base_values[2][2], b = base_values[2][3]},
dawn_sky = {r = base_values[5][1], g = base_values[5][2], b = base_values[5][3]}, -- base_values[5] to base_values[8] are calculated
dawn_horizon = {r = base_values[6][1], g = base_values[6][2], b = base_values[6][3]},
night_sky = {r = base_values[7][1], g = base_values[7][2], b = base_values[7][3]},
night_horizon = {r = base_values[8][1], g = base_values[8][2], b = base_values[8][3]},
indoors = {r = 128, g = 128, b = 128}, -- Don't see much point in changing this
fog_sun_tint = {r = base_values[3][1], g = base_values[3][2], b = base_values[3][3]},
fog_moon_tint = {r = base_values[4][1], g = base_values[4][2], b = base_values[4][3]},
fog_tint_type = "custom"
}
})
end
skygen.init_transition = function(player, prev_biome_name, biome_name)
skygen.transition_state[player:get_player_name()] = true
local base_colors = {}
base_colors[1] = skygen.biomes[prev_biome_name].colors[3] -- Sun tint
base_colors[2] = skygen.biomes[prev_biome_name].colors[4] -- Moon tint
local base_params = {}
base_params[1] = minetest.registered_biomes[prev_biome_name].heat_point
base_params[2] = minetest.registered_biomes[prev_biome_name].humidity_point
local color_diffs = skygen.get_color_diffs(prev_biome_name, biome_name)
local param_diffs = skygen.get_param_diffs(prev_biome_name, biome_name)
skygen.transition(player, base_colors, base_params, color_diffs, param_diffs, 0, biome_name)
end
skygen.transition = function(player, base_colors, base_params, color_diffs, param_diffs, progress, biome)
if progress == skygen.transition_frames then
skygen.transition_state[player:get_player_name()] = false
skygen.previous_biome[player:get_player_name()] = biome
else
progress = progress + 1
base_params[1] = base_params[1] + param_diffs[1]
base_params[2] = base_params[2] + param_diffs[2]
local heat = base_params[1]*2.55 -- 0 ... 255
local humidity = base_params[2]/100 -- 0 ... 1
for k=1,2 do
for i=1,3 do
base_colors[k][i] = base_colors[k][i] + color_diffs[k][i]
end
end
local sun = base_colors[1]
local moon = base_colors[2]
player:set_clouds({
density = humidity/1.5,
color = {r = 255, g = 255, b = 255, a = 255 * humidity},
thickness = humidity * 80
})
player:set_sun({
scale = ((heat/255) + 0.1)*2
})
player:set_moon({
scale = ((heat/255) + 0.1)*4
})
player:set_stars({
star_color = {r = sun[1], g = sun[2], b = sun[3]},
count = (1.5 - humidity) * 4 * 10
})
minetest.after(1 / skygen.transition_frames, function()
skygen.transition(player, base_colors, base_params, color_diffs, param_diffs, progress, biome)
end)
end
end
skygen.colorize = function(color, colorizer, amount)
local result = {}
local difference = 0
for i=1,3 do
difference = colorizer[i] - color[i]
result[i] = color[i] + (difference * amount)
end
return result
end
skygen.set_all = function(player, biome_name) -- For initial case
sun = skygen.biomes[biome_name].colors[3] -- Sun tint
moon = skygen.biomes[biome_name].colors[4] -- Moon tint
heat = minetest.registered_biomes[biome_name].heat_point*2.55
humidity = minetest.registered_biomes[biome_name].humidity_point/100
player:set_clouds({
density = humidity/1.5,
color = {r = 255, g = 255, b = 255, a = 255 * humidity},
thickness = humidity * 80
})
player:set_sun({
scale = ((heat/255) + 0.1)*2
})
player:set_moon({
scale = ((heat/255) + 0.1)*4
})
player:set_stars({
star_color = {r = sun[1], g = sun[2], b = sun[3]},
count = (1.5 - humidity) * 4 * 10
})
end
skygen.set_clouds = function(player, biome_name) -- Cause minetest sets them to default every now and then
local heat = minetest.registered_biomes[biome_name].heat_point*2.55
local humidity = minetest.registered_biomes[biome_name].humidity_point/100
player:set_clouds({
density = humidity/1.5,
color = {r = 255, g = 255, b = 255, a = 255 * humidity},
thickness = humidity * 80
})
end
skygen.get_param_diffs = function(prev_biome_name, biome_name)
local prev_heat = minetest.registered_biomes[prev_biome_name].heat_point
local prev_humidity = minetest.registered_biomes[prev_biome_name].humidity_point
local heat = minetest.registered_biomes[biome_name].heat_point
local humidity = minetest.registered_biomes[biome_name].humidity_point
local results = {}
results[1] = (heat - prev_heat) / skygen.transition_frames
results[2] = (humidity - prev_humidity) / skygen.transition_frames
return results
end
skygen.get_color_diffs = function(prev_biome_name, biome_name)
local prev_colorset = {}
prev_colorset[1] = skygen.biomes[prev_biome_name].colors[3] -- Sun tint
prev_colorset[2] = skygen.biomes[prev_biome_name].colors[4] -- Moon tint
local colorset = {}
colorset[1] = skygen.biomes[biome_name].colors[3] -- Sun tint
colorset[2] = skygen.biomes[biome_name].colors[4] -- Moon tint
local result = {{}, {}}
for k=1,2 do
for i=1,3 do
result[k][i] = (colorset[k][i] - prev_colorset[k][i]) / skygen.transition_frames
end
end
return result
end
skygen.fetch_biome = function(player)
local player_pos = player:get_pos()
local biome_data = minetest.get_biome_data(player_pos)
local biome = minetest.get_biome_name(biome_data.biome)
local heat = biome_data.heat*2.55 -- 0 ... 255
local humidity = biome_data.humidity/100 -- 0 ... 1
local values = {}
values[1] = biome
values[2] = heat
values[3] = humidity
return values
end
minetest.register_globalstep(function(dtime)
local players = minetest.get_connected_players()
if skygen.start == 1 then -- Build the virtual table
skygen.start = 0
for i=1, #skygen.biome_names do
local biome_name = skygen.biome_names[i]
local biome_colors = skygen.biomes[biome_name].colors
biome_colors[5] = skygen.colorize(biome_colors[2], biome_colors[3], 0.75) -- Dawn
biome_colors[6] = skygen.colorize(biome_colors[1], biome_colors[3], 0.75) -- Dawn Horizon
biome_colors[7] = skygen.colorize(biome_colors[1], biome_colors[4], 0.75) -- Night
biome_colors[8] = skygen.colorize(biome_colors[2], biome_colors[4], 0.75) -- Night Horizon
end
else
for i=1, #players do
local player = players[i]
local player_name = player:get_player_name()
local biome_data = skygen.fetch_biome(player)
local biome_name = biome_data[1]
local previous_biome_name = skygen.previous_biome[player_name]
if skygen.transition_state[player_name] == nil then
skygen.transition_state[player_name] = false
end
if skygen.transition_state[player_name] == true then
elseif biome_name == previous_biome_name then
skygen.set_clouds(player, biome_name) -- Cause minetest resets them every now and then
elseif previous_biome_name == nil then
skygen.previous_biome[player_name] = biome_name
skygen.set_sky(player, biome_name)
skygen.set_all(player, biome_name)
else
minetest.chat_send_player(player_name, "Change Init: " .. previous_biome_name .. " to " .. biome_name)
skygen.set_sky(player, biome_name)
skygen.init_transition(player, previous_biome_name, biome_name)
end
end
end
end)

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mod.conf Normal file
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name = skygen