minetest-mods/digilines
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Performance improvement when transmitting

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The 'checked' table is passed by reference anyway, so reassigning it at
every step along the network is just wasting time by creating more and
more copies of it.
This commit is contained in:
Ciaran Gultnieks 2014-02-15 12:22:07 +00:00
parent 78d67f00a6
commit 6876aa6a4f
1 changed files with 3 additions and 4 deletions
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7
digilines/internal.lua
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@ -66,9 +66,8 @@ function digiline:rules_link_anydir(output, input)
end
function digiline:transmit(pos, channel, msg, checked)
checked = checked or {}
local checkedid = tostring(pos.x).."_"..tostring(pos.y).."_"..tostring(pos.z)
if checked[checkedid] then return checked end
if checked[checkedid] then return end
checked[checkedid] = true
local node = minetest.env:get_node(pos)
@ -86,9 +85,9 @@ function digiline:transmit(pos, channel, msg, checked)
local rules = digiline:importrules(spec.wire.rules, node)
for _,rule in ipairs(rules) do
if digiline:rules_link(pos, digiline:addPosRule(pos, rule)) then
checked = digiline:transmit(digiline:addPosRule(pos, rule), channel, msg, checked)
digiline:transmit(digiline:addPosRule(pos, rule), channel, msg, checked)
end
end
end
return checked
return
end