teleport_tube.lua: fix 32-bit clamping issues on some systems for %d in string.format

Some servers running ubuntu in particular were reporting issues with teleport tubes not working.
On investigation, all tube entries were colliding as string.format("%d", ...)
was returning either -2^31 or 2^31-1 depending on system bit width,
causing hash entries to be overwritten.
This is possibly related to the use of C sprintf within lua.
Fix this by using %g instead to interpret as double without int conversion,
with a large enough number of digits such that all possible 2^48 values from
minetest.hash_node_position() can be correctly serialised.

0 files changed, 0 insertions, 0 deletions