Jumping with pipeworks mod enabled saves the whole tp-tube database (instead of just 2 entries)

[BuckarooBanzay]

Causes lag spikes up to multiple seconds on larger tp-tube databases 30k+

TODO:

• add move_tube(pos) in the pipeworks namespace (blocked by code and registrations cleanup pipeworks#101)
• implement jump-compat with move_tube(pos) (no commit afterwards needed)

Relevant code sections

Move code:

jumpdrive/compat/teleporttube.lua

Lines 9 to 38 in 686e335

	jumpdrive.teleporttube_compat = function(from, to)
	if not pipeworks.tptube then
	-- only works with the patch from "./patches/pipeworks.patch"
	return
	end
	local from_hash = pipeworks.tptube.hash(from)
	local to_hash = pipeworks.tptube.hash(to)
	-- swap data
	local db = pipeworks.tptube.get_db()
	local data = db[from_hash]
	if not data then
	minetest.log("warning", "[jumpdrive] no tp-tube data found at hash: " ..
	from_hash .. " / pos: " .. minetest.pos_to_string(from))
	return
	end
	minetest.log("action", "[jumpdrive] moving tp-tube data from " ..
	from_hash .. " to " .. to_hash .. " at pos: " .. minetest.pos_to_string(from))
	data.x = to.x
	data.y = to.y
	data.z = to.z
	db[from_hash] = nil
	db[to_hash] = data
	end

"commit" after jump:

jumpdrive/compat/teleporttube.lua

Line 46 in 686e335

pipeworks.tptube.save_tube_db()

Pipeworks tp tube api (can be shortened):
https://github.com/mt-mods/pipeworks/blob/dd6950f7b037d17895d41db2bbbddfdfddcdf25c/teleport_tube.lua#L355-L370