I can't get my head around this bug?!

[John-a-tron]

So i downloaded the Wiremod, verrry pleased with it..

Followed a few tutorials and JUST as i thought i was getting to grips with it. The I/O radio just fails...

I have no idea what is going on..

This was said:

autorun/server/radiolib.lua:14: attempt to index field 'Entity' (a nil value)[/b]

so i looked up the directory and into the file:

<div class='codetop'>CODE</div><div class='codemain' style='height:200px;white-spacere;overflow:auto'>
-- phenex: Start radio mod.
local radio_channels = {}
local radio_sets = {}

function Radio_Register( o )
table.insert( radio_sets, o )
end

function Radio_Transmit( ch, v )
radio_channels[ch] = v

for i, o in ipairs( radio_sets ) do
if (not o.entity:IsValid()) then
table.remove(radio_sets, i)
elseif (o.Channel == ch) then
o:ReceiveRadio(v)
end
end
end

function Radio_Receive( ch )
return radio_channels[ch] or 0
end

local radio_twowaycounter = 0

function Radio_GetTwoWayID()
radio_twowaycounter = radio_twowaycounter + 1
return radio_twowaycounter
end

-- phenex: End radio mod.</div>



I&#39;m not experienced in the lua coding field one bit so i have no idea what to do...


I would much appreciate any help given

Thanks

[DuFace]

There is a problem with the radio mod that hasn&#39;t been addressed for a while now. Eventually it&#39;ll probably be replaced by a new radio system that philxyz is working on.

As for that error, it occurs because the field entity is being referenced as an object when it hasn&#39;t been made to equal anything yet (or as Lua says, it is nil). I assume this line here is the culprit:

<div class='codetop'>CODE</div><div class='codemain' style='height:200px;white-spacere;overflow:auto'>...
for i, o in ipairs( radio_sets ) do
if (not o.entity:IsValid()) then
table.remove(radio_sets, i)
elseif (o.Channel == ch) then
...</div>
Whenever a radio is created it should call that Radio_Register() function so that it is added to the radio_sets table. Then that loop simply checks that each radio is valid (calls the entity:IsValid() function) and then removes the entry if it is invalid, or prompts it to recieve the radio data if it is valid.

EDIT: Woo this post removed my Newbie status!

[Azrael]

Hmmm...as far as I know, you shouldn&#39;t have to set entity to anything, as o refers to a radio entity it is being sent to, and all entities have all their entity-y methods in the entity class. Though I may be wrong, I&#39;m not too great at Lua.

EDIT: philxyz&#39;s system is for directional radios. These won&#39;t be replacing normal, channel-based radios any time soon. That would be silly.

[John-a-tron]

So as of now...theres nothing i can do?

or do i make

(not o.entity:IsValid())[/b]

(not o.entity:IsValid()function)[/b]

I have a feeling im completely missing something

[DuFace]

philxyz&#39;s system is for directional radios. These won&#39;t be replacing normal, channel-based radios any time soon. That would be silly.[/b]

Ah my bad, I thought his system included omnidirectional radios too.

I have a feeling im completely missing something[/b]

Sorry if I&#39;ve mislead you. Don&#39;t tag function onto the end of that, but make sure the E of Entity is capital. Apart from that I can&#39;t see anything wrong.

[John-a-tron]

Wheyyy!

Changed it to a capital and its working brilliantly now

Cheers DuFace =]

[DuFace]

Any time! Glad I could help

[rylasasin]

i&#39;m currently having this EXACT same problem. However, when I looked in the Lua file, the E was already captalized. What do I do now?

[SamPerson12345]

same problem too. I just updated svn. I&#39;m gonna stick the lua code up here.

<div class='codetop'>CODE</div><div class='codemain' style='height:200px;white-spacere;overflow:auto'>
-- phenex: Start radio mod.
local radio_channels = {}
local radio_sets = {}

function Radio_Register( o )
table.insert( radio_sets, o )
end

function Radio_Transmit( ch, v )
radio_channels[ch] = v

for i, o in ipairs( radio_sets ) do
if (not o.Entity:IsValid()) then
table.remove(radio_sets, i)
elseif (o.Channel == ch) then
o:ReceiveRadio(v)
end
end
end

function Radio_Receive( ch )
return radio_channels[ch] or 0
end

local radio_twowaycounter = 0

function Radio_GetTwoWayID()
radio_twowaycounter = radio_twowaycounter + 1
return radio_twowaycounter
end

-- phenex: End radio mod.
</div>

[SamPerson12345]

I really hope some lua coder can fix this.