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firealarm = {}
firealarm.devices = {
panel = {},
signaling = {},
notification = {},
}
function firealarm.loadNode(pos)
minetest.forceload_block(pos,true)
end
function firealarm.loadDevLists()
local path = minetest.get_worldpath()..DIR_DELIM.."firealarm_devices"
local file = io.open(path,"r")
if not file then
minetest.log("error","Unable to open fire alarm devices table for reading. "..
"This is normal on the first start.")
firealarm.saveDevLists()
return
end
local serdata = file:read("*a")
file:close()
local data = minetest.deserialize(serdata)
if type(data) == "table" then
firealarm.devices = data
else
error("Fire alarm devices table is corrupted or contains invalid data")
end
end
function firealarm.saveDevLists()
local path = minetest.get_worldpath()..DIR_DELIM.."firealarm_devices"
local file = io.open(path,"w")
if not file then
minetest.log("error","Unable to open fire alarm devices table for writing")
return
end
local serdata = minetest.serialize(firealarm.devices)
file:write(serdata)
file:close()
end
function firealarm.getDevInfo(devType,pos)
if devType ~= "panel" and devType ~= "signaling" and devType ~= "notification" then
error("Invalid device type specified")
end
local hash = minetest.hash_node_position(pos)
return firealarm.devices[devType][hash]
end
function firealarm.setDevInfo(devType,pos,info)
if devType ~= "panel" and devType ~= "signaling" and devType ~= "notification" then
error("Invalid device type specified")
end
local hash = minetest.hash_node_position(pos)
firealarm.devices[devType][hash] = info
firealarm.saveDevLists()
end
firealarm:loadDevLists()
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