80 lines
2.5 KiB
Lua
80 lines
2.5 KiB
Lua
-- Fix compatibility for settings-related changes
|
|
-- Only loaded if the versions of the mod and the world mismatch
|
|
|
|
local function version_is_lower(v1, v2)
|
|
local d1, c1, d2, c2
|
|
while #v1 > 0 and #v2 > 0 do
|
|
d1, c1, v1 = v1:match("^(%d*)(%D*)(.*)$")
|
|
d2, c2, v2 = v2:match("^(%d*)(%D*)(.*)$")
|
|
|
|
d1 = tonumber(d1) or -1
|
|
d2 = tonumber(d2) or -1
|
|
if d1 ~= d2 then
|
|
return d1 < d2
|
|
end
|
|
if c1 ~= c2 then
|
|
return c1 < c2
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
local function fix_min_catchment(settings, is_global)
|
|
local prefix = is_global and "mapgen_rivers_" or ""
|
|
|
|
local min_catchment = settings:get(prefix.."min_catchment")
|
|
if min_catchment then
|
|
min_catchment = tonumber(min_catchment)
|
|
local blocksize = tonumber(settings:get(prefix.."blocksize") or 15)
|
|
settings:set(prefix.."min_catchment", tonumber(min_catchment) * blocksize*blocksize)
|
|
local max_catchment = settings:get(prefix.."max_catchment")
|
|
if max_catchment then
|
|
max_catchment = tonumber(max_catchment)
|
|
local wpower = math.log(2*blocksize)/math.log(max_catchment/min_catchment)
|
|
settings:set(prefix.."river_widening_power", wpower)
|
|
end
|
|
end
|
|
end
|
|
|
|
local function fix_compatibility_minetest(settings)
|
|
local previous_version = settings:get("mapgen_rivers_version") or "0.0"
|
|
|
|
if previous_version == "0.0" then
|
|
fix_min_catchment(settings, true)
|
|
end
|
|
|
|
if version_is_lower(previous_version, "1.0.2-dev1") then
|
|
local blocksize = tonumber(settings:get("mapgen_rivers_blocksize") or 15)
|
|
local grid_x_size = tonumber(settings:get("mapgen_rivers_grid_x_size"))
|
|
if grid_x_size then
|
|
settings:set("mapgen_rivers_map_x_size", tostring(grid_x_size * blocksize))
|
|
end
|
|
local grid_z_size = tonumber(settings:get("mapgen_rivers_grid_z_size"))
|
|
if grid_z_size then
|
|
settings:set("mapgen_rivers_map_z_size", tostring(grid_z_size * blocksize))
|
|
end
|
|
end
|
|
end
|
|
|
|
local function fix_compatibility_mapgen_rivers(settings)
|
|
local previous_version = settings:get("version") or "0.0"
|
|
|
|
if previous_version == "0.0" then
|
|
fix_min_catchment(settings, false)
|
|
end
|
|
|
|
if version_is_lower(previous_version, "1.0.2-dev1") then
|
|
local blocksize = tonumber(settings:get("blocksize") or 15)
|
|
local grid_x_size = tonumber(settings:get("grid_x_size"))
|
|
if grid_x_size then
|
|
settings:set("map_x_size", tostring(grid_x_size * blocksize))
|
|
end
|
|
local grid_z_size = tonumber(settings:get("grid_z_size"))
|
|
if grid_z_size then
|
|
settings:set("map_z_size", tostring(grid_z_size * blocksize))
|
|
end
|
|
end
|
|
end
|
|
|
|
return fix_compatibility_minetest, fix_compatibility_mapgen_rivers
|