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Fix detector tube item counting

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A detector tube would sometimes miss a decrement, due to the pos structure
passed to can_go being modified by the tubed-item entity while it's also
sitting in the timer queue as an argument to item_exit.  As the can_go
API actually depends on being able to mutate the pos structure (see the
teleporter tube), we can't just start passing in a never-mutated copy
of pos.  So for now just fix in the detector tube's can_go, by copying the
structure there.  Incidentally, make the decrement mechanism consistent
between the two forms of increment.
This commit is contained in:
Zefram 2014-07-14 19:34:15 +01:00 committed by Vanessa Ezekowitz
parent 8aea4b1a13
commit ce1505d008
1 changed files with 8 additions and 3 deletions
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11
tubes.lua
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@ -357,7 +357,6 @@ if pipeworks.enable_detector_tube then
local detector_plain_textures = {"pipeworks_detector_tube_plain.png", "pipeworks_detector_tube_plain.png", "pipeworks_detector_tube_plain.png",
"pipeworks_detector_tube_plain.png", "pipeworks_detector_tube_plain.png", "pipeworks_detector_tube_plain.png"}
local detector_inv_texture = "pipeworks_detector_tube_inv.png"
local detector_tube_step = 2 * tonumber(minetest.setting_get("dedicated_server_step"))
pipeworks.register_tube("pipeworks:detector_tube_on", "Detecting Pneumatic Tube Segment on (you hacker you)", detector_plain_textures, noctr_textures,
end_textures, short_texture, detector_inv_texture,
{tube = {can_go = function(pos, node, velocity, stack)
@ -365,7 +364,12 @@ if pipeworks.enable_detector_tube then
local name = minetest.get_node(pos).name
local nitems = meta:get_int("nitems")+1
meta:set_int("nitems", nitems)
minetest.after(detector_tube_step, minetest.registered_nodes[name].item_exit, pos)
local saved_pos = { x = pos.x, y = pos.y, z = pos.z }
minetest.after(0, function ()
minetest.after(0, function ()
minetest.after(0, minetest.registered_nodes[name].item_exit, saved_pos)
end)
end)
return pipeworks.notvel(pipeworks.meseadjlist,velocity)
end},
groups = {mesecon = 2, not_in_creative_inventory = 1},
@ -389,9 +393,10 @@ if pipeworks.enable_detector_tube then
local meta = minetest.get_meta(pos)
meta:set_int("nitems", 1)
local name = minetest.get_node(pos).name
local saved_pos = { x = pos.x, y = pos.y, z = pos.z }
minetest.after(0, function ()
minetest.after(0, function ()
minetest.after(0, minetest.registered_nodes[name].item_exit, pos)
minetest.after(0, minetest.registered_nodes[name].item_exit, saved_pos)
end)
end)
end})