require 'scripts.s3.szudzik' → { getIndex, unpair }Use Szudzik pairing when a sparse grid or coordinate map needs one numeric key instead of nested tables. The mapping is reversible for integer coordinates and allocates no tables.
local szudzik = require 'scripts.s3.szudzik'
local key = szudzik.getIndex(cell.gridX, cell.gridY)
occupied[key] = true
local x, y = szudzik.unpair(key)| Function | Behavior |
|---|---|
getIndex(x, y) | Return one integer key for the signed integer pair. |
unpair(z) | Return the original x, y pair for a key produced by getIndex. |
Inputs are expected to be integers. The module performs no type or range validation; fractional, negative-key, or otherwise invalid inputs can produce meaningless results.