mapgen_rivers/settings.lua

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-- Read global and per-world settings
local mtsettings = minetest.settings
local mgrsettings = Settings(minetest.get_worldpath() .. '/mapgen_rivers.conf')
mapgen_rivers.version = "1.0.2-dev1"
local previous_version_mt = mtsettings:get("mapgen_rivers_version") or "0.0"
local previous_version_mgr = mgrsettings:get("version") or "0.0"
if mapgen_rivers.version ~= previous_version_mt or mapgen_rivers.version ~= previous_version_mgr then
local compat_mt, compat_mgr = dofile(minetest.get_modpath(minetest.get_current_modname()) .. "/compatibility.lua")
if mapgen_rivers.version ~= previous_version_mt then
compat_mt(mtsettings)
end
if mapgen_rivers.version ~= previous_version_mgr then
compat_mgr(mgrsettings)
end
end
mtsettings:set("mapgen_rivers_version", mapgen_rivers.version)
mgrsettings:set("version", mapgen_rivers.version)
local defaults
do
local f = io.open(mapgen_rivers.modpath .. "/settings_default.json")
defaults = minetest.parse_json(f:read("*all"))
f:close()
end
-- Convert strings to numbers in noise params because Minetest API is not able to do it cleanly...
local function clean_np(np)
for field, value in pairs(np) do
if field ~= 'flags' and type(value) == 'string' then
np[field] = tonumber(value) or value
elseif field == 'spread' then
for dir, v in pairs(value) do
value[dir] = tonumber(v) or v
end
end
end
end
function mapgen_rivers.define_setting(name, dtype, default)
if dtype == "number" or dtype == "string" then
local v = mgrsettings:get(name)
if v == nil then
v = mtsettings:get('mapgen_rivers_' .. name)
if v == nil then
v = defaults[name]
end
mgrsettings:set(name, v)
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end
if dtype == "number" then
return tonumber(v)
else
return v
end
elseif dtype == "bool" then
local v = mgrsettings:get_bool(name)
if v == nil then
v = mtsettings:get_bool('mapgen_rivers_' .. name)
if v == nil then
v = defaults[name]
end
mgrsettings:set_bool(name, v)
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end
return v
elseif dtype == "noise" then
local v = mgrsettings:get_np_group(name)
if v == nil then
v = mtsettings:get_np_group('mapgen_rivers_' .. name)
if v == nil then
v = defaults[name]
end
mgrsettings:set_np_group(name, v)
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end
clean_np(v)
return v
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end
end
local def_setting = mapgen_rivers.define_setting
mapgen_rivers.settings = {
center = def_setting('center', 'bool'),
blocksize = def_setting('blocksize', 'number'),
sea_level = tonumber(minetest.get_mapgen_setting('water_level')),
min_catchment = def_setting('min_catchment', 'number'),
river_widening_power = def_setting('river_widening_power', 'number'),
riverbed_slope = def_setting('riverbed_slope', 'number'),
distort = def_setting('distort', 'bool'),
biomes = def_setting('biomes', 'bool'),
glaciers = def_setting('glaciers', 'bool'),
glacier_factor = def_setting('glacier_factor', 'number'),
elevation_chill = def_setting('elevation_chill', 'number'),
map_x_size = def_setting('map_x_size', 'number'),
map_z_size = def_setting('map_z_size', 'number'),
margin = def_setting('margin', 'bool'),
margin_width = def_setting('margin_width', 'number'),
margin_elev = def_setting('margin_elev', 'number'),
evol_params = {
K = def_setting('river_erosion_coef', 'number'),
m = def_setting('river_erosion_power', 'number'),
d = def_setting('diffusive_erosion', 'number'),
compensation_radius = def_setting('compensation_radius', 'number'),
},
tectonic_speed = def_setting('tectonic_speed', 'number'),
evol_time = def_setting('evol_time', 'number'),
evol_time_step = def_setting('evol_time_step', 'number'),
load_all = mtsettings:get_bool('mapgen_rivers_load_all')
}
mapgen_rivers.settings.load_method =
mapgen_rivers.settings.load_all and "full" or "interactive"
mapgen_rivers.noise_params = {
base = def_setting("np_base", "noise"),
distort_x = def_setting("np_distort_x", "noise"),
distort_z = def_setting("np_distort_z", "noise"),
distort_amplitude = def_setting("np_distort_amplitude", "noise"),
heat = minetest.get_mapgen_setting_noiseparams('mg_biome_np_heat'),
heat_blend = minetest.get_mapgen_setting_noiseparams('mg_biome_np_heat_blend'),
}
mapgen_rivers.noise_params.heat.offset = mapgen_rivers.noise_params.heat.offset +
mapgen_rivers.settings.sea_level * mapgen_rivers.settings.elevation_chill
local function write_settings()
mgrsettings:write()
end
minetest.register_on_mods_loaded(write_settings)
minetest.register_on_shutdown(write_settings)