advtrains/advtrains_luaautomation/interrupt.lua

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-- interrupt.lua
-- implements interrupt queue
--to be saved: pos and evtdata
local iq={}
local queue={}
local timer=0
local run=false
function iq.load(data)
local d=data or {}
queue = d.queue or {}
timer = d.timer or 0
end
function iq.save()
return {queue = queue, timer=timer}
end
function iq.add(t, pos, evtdata)
queue[#queue+1]={t=t+timer, p=pos, e=evtdata}
run=true
end
function iq.mainloop(dtime)
timer=timer + math.min(dtime, 0.2)
for i=1,#queue do
local qe=queue[i]
if not qe then
table.remove(queue, i)
i=i-1
elseif timer>qe.t then
local pos, evtdata=queue[i].p, queue[i].e
local node=advtrains.ndb.get_node(pos)
local ndef=minetest.registered_nodes[node.name]
if ndef and ndef.luaautomation and ndef.luaautomation.fire_event then
ndef.luaautomation.fire_event(pos, evtdata)
end
table.remove(queue, i)
i=i-1
end
end
end
atlatc.interrupt=iq