mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-05 06:53:52 +01:00
38e5c81d33
- Don't use wea.sum() on a table full of all the times we've recorded so far - Limit individual stats list lengths to 25 to avoid memory issues when running with a large number of chunks - Tally total times / metrics as we go to avoid memory issues
49 lines
1.4 KiB
Lua
49 lines
1.4 KiB
Lua
--- Shallow clones a table.
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-- @source http://lua-users.org/wiki/CopyTable
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-- @param orig table The table to clone.
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-- @return table The cloned table.
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function worldeditadditions.shallowcopy(orig)
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local orig_type = type(orig)
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local copy
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if orig_type == 'table' then
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copy = {}
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for orig_key, orig_value in pairs(orig) do
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copy[orig_key] = orig_value
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end
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else -- number, string, boolean, etc
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copy = orig
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end
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return copy
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end
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--- SHALLOW ONLY - applies the values in source to overwrite the equivalent keys in target.
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-- Warning: This function mutates target!
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-- @param source table The source to take values from
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-- @param target table The target to write values to
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function worldeditadditions.table_apply(source, target)
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for key, value in pairs(source) do
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target[key] = value
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end
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end
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--- Polyfill for unpack / table.unpack.
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-- Calls unpack when available, and looks for table.unpack if unpack() isn't
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-- found.
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-- This is needed because in Lua 5.1 it's the global unpack(), but in Lua 5.4
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-- it's moved to table.unpack().
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function worldeditadditions.table_unpack(tbl, offset, count)
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if type(unpack) == "function" then
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return unpack(tbl, offset, count)
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else
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return table.unpack(tbl, offset, count)
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end
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end
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--- Returns only the last count items in a given numerical table-based list.
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function worldeditadditions.table_get_last(tbl, count)
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return {worldeditadditions.table_unpack(
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tbl,
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math.max(0, (#tbl) - (count - 1))
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)}
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end
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