mapfix/init.lua

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local function mapfix(minp, maxp)
local vm = minetest.get_voxel_manip(minp, maxp)
vm:update_liquids()
vm:write_to_map()
vm:update_map()
local emin, emax = vm:get_emerged_area()
print(minetest.pos_to_string(emin), minetest.pos_to_string(emax))
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end
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local previous = os.time()
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local default_size = tonumber(minetest.settings:get("mapfix_default_size")) or 24
local max_size = tonumber(minetest.settings:get("mapfix_max_size")) or 32
local delay = tonumber(minetest.settings:get("mapfix_delay")) or 15
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local function mapfix_priv()
local priv = minetest.settings:get("mapfix_priv")
if not minetest.registered_privileges[priv] then
return "server"
else
return priv
end
end
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minetest.register_chatcommand("mapfix", {
params = "<size>",
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description = "Recalculate the flowing liquids and the light of a chunk",
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func = function(name, param)
local pos = vector.round(minetest.get_player_by_name(name):getpos())
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local size = tonumber(param) or default_size
if size >= 121 then
return false, "Radius is too big"
end
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local privs = minetest.check_player_privs(name, mapfix_priv())
local time = os.time()
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if not privs then
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if size > max_size then
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return false, "You need the " .. mapfix_priv() .. " privilege to exceed the radius of " .. max_size .. " blocks"
elseif time - previous < delay then
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return false, "Wait at least " .. delay .. " seconds from the previous \"/mapfix\"."
end
previous = time
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end
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minetest.log("action",
name .. " uses mapfix at " .. minetest.pos_to_string(vector.round(pos)) .. " with radius " .. size)
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-- When passed to get_voxel_manip, positions are rounded up, to a multiple of 16 nodes in each direction.
-- By subtracting 8 it's rounded to the nearest chunk border. max is used to avoid negative radius.
size = math.max(math.floor(size - 8), 0)
local minp = vector.subtract(pos, size)
local maxp = vector.add(pos, size)
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mapfix(minp, maxp)
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return true, "Done."
end,
})