Lua Halo Glow Help

[ChaosWolf]

[Macfan9000|7|STEAM_0:1:32363770] Lua Error:

[ERROR] lua/includes/extensions/util.lua:38: attempt to index local 'ply' (a nil
 value)
  1. GetPlayerTrace - lua/includes/extensions/util.lua:38
   2. GetTraceProp - lua/autorun/cl_halo.lua:9
    3. fn - lua/autorun/cl_halo.lua:18
     4. Run - addons/ulib/lua/ulib/shared/hook.lua:183
      5. fn - lua/includes/modules/halo.lua:163
       6. unknown - addons/ulib/lua/ulib/shared/hook.lua:183

server didn't like that either... this is where I am not understanding why its acting up.

[Decicus]

As I said in my previous reply: "ply" is never defined (basically: doesn't exist) in your code. That is what "LocalPlayer()" is for, since the code is clientside, it will return the player object of the client.

Line 2 in the code should be

Code: [Select]

local trace = util.TraceLine( util.GetPlayerTrace( LocalPlayer() ) )as Neku originally had the code.

[ChaosWolf]

Okay So the errors are gone. But the halo still isn't highlighting props. In fact as apposed to my hook on its own. It doesn't highlight anything. The hook as a standalone will highlight everything. I need a happy medium. I would appreciate a revision of at all possible.

Target/aiming at a prop should make it glow the designated color. Perhaps there is a way to make it go

Do This and do that

[ChaosWolf]

NOPE I TAKE THAT BACK

[ERROR] stack overflow
  1. __mul - [C]:-1
   2. GetPlayerTrace - lua/includes/extensions/util.lua:43
    3. GetTraceProp - lua/autorun/cl_halo.lua:9
     4. GetTraceProp - lua/autorun/cl_halo.lua:10
      5. GetTraceProp - lua/autorun/cl_halo.lua:10
       6. GetTraceProp - lua/autorun/cl_halo.lua:10
        7. GetTraceProp - lua/autorun/cl_halo.lua:10
         8. GetTraceProp - lua/autorun/cl_halo.lua:10
          9. GetTraceProp - lua/autorun/cl_halo.lua:10
           10. GetTraceProp - lua/autorun/cl_halo.lua:10
            11. GetTraceProp - lua/autorun/cl_halo.lua:10
             12. GetTraceProp - lua/autorun/cl_halo.lua:10
              13. GetTraceProp - lua/autorun/cl_halo.lua:10
               14. GetTraceProp - lua/autorun/cl_halo.lua:10
                15. GetTraceProp - lua/autorun/cl_halo.lua:10
                 16. GetTraceProp - lua/autorun/cl_halo.lua:10

IM STILL GETTING A OVERFLOW OF ERRORS EVEN AFTER THE REVISION.

[Neku]

Like I said, it's running much harder than intended.

[ChaosWolf]

Yea I can see that, but how to fix it... That is the question. Even a revised version would be appreciated.

[ChaosWolf]

so everyone just gave up on it?

[ChaosWolf]

so I tried something a bit different and here is what I have, but its not liking the self.Entity and calls it a nil value, so I need to use another reference but what do I call it, I removed the portion of code Neku offered simply because the hook functions on its own but it highlights all props. I want it to highlight what prop you're looking at and when you look away it doesn't highlight it. I added another line to the hook in hopes that this may get it to render distance and only what your looking at.

Code: Lua

1. hook.Add( "PreDrawHalos", "AddHalos", function()
2.  if ( LocalPlayer():GetEyeTrace().Entity == self.Entity && EyePos():Distance( self.Entity:GetPos() ) < 512 ) then
3.          halo.Add( GetTraceProp(), Color( 140, 0, 255 ), 5, 5, 2 )
4.         end
5. end)

so what do I change self.Entity to?
 I have tried ply, Self, and for laughs and giggles GetTraceProp (I know... -_- but I tried it anyway)

[JamminR]

Chaos, been too long since I looked at any indepth code, but, perhaps finding/looking at the Gmod hoverball code might help, at least to find out how it does the 'selection' when a player looks at it. There's a few other standard tools that highlight items when being looked at too.
Hoverballs highlights and does the popup bubble with strength/power levels, etc.

[ChaosWolf]

i see what your getting at, there is also a left 4 dead 2 script that can be ported that does the same thing. I can edit existing code, but I have a difficult time creating my own, if I know the code for it and how it works, I can use it. and that is where my problem lies, I don't know what to replace self.Entity with. its saying "if a player is looking at something and you are the player, and your eye position is fixed on an item and you see an item less than 512 then add the halo around the outline of the prop that is the color purple."

so I don't know what else to call a player other then ply if I make a port of an existing script. that will be much more complicated considering the length of them, I will use that as a last resort. if I manage to get it working then I will release the ported version. as well as a ReadMe to configure it. in fact, I will leave this code here and see what I can do with that.

thanks JamminR

[Avoid]

So what im wanting is to make a code so that the client will highlight the target he/she is currently marking, say I am trying to select a small object surrounded by many other objects, it is to help with accuracy in selecting items. here's what I have so far.

Code: Lua

1. hook.Add( "PreDrawHalos", "AddHalos", function()
2.         halo.Add( ents.FindByClass( "prop_physics*" ), Color( 255, 0, 0 ), 5, 5, 2 )
3. end )

but this makes all props glow, I just need something to say if ply:TEAM_PROP then do
but im not sure how to get it to work properly and in such a way that only targeted props are highlighted.

I'm still new to lua and am learning as I go. so I could use the help. anyone care to help me revise it?

Hello there,
if you want to get the entity the player is currently looking at you should look at traces in the Wiki.

EDIT: I saw Naku and Decious already helped you.

Then you could simply check if the trace returns a valid entity like so:

Code: [Select]

function Halos()
local tr = LocalPlayer():GetEyeTraceNoCursor()
local trace = {}
trace.start = tr.StartPos
trace.endpos = trace.start + LocalPlayer():GetAimVector() * 10000
trace.filter = self
trace.mask = MASK_SHOT

if IsValid(tr.Entity) and !tr.Entity:IsPlayer() then
if tr.HitPos:Distance(tr.StartPos) < 1000 then
local col = Color(50, 220, 200)
halo.Add({tr.Entity}, col, 2, 2, 2, true, true)
end
end
end

hook.Add( "PreDrawHalos", "DrawHalos", Halos )


[ChaosWolf]

so the completed code should look like what, cause everytime I rewrite it I break it

[ChaosWolf]

OHHHH I DIDNT SEE THE CODE, ok... that makes sense, ive made some minor changes like the color of course, changed the trace distance, etc... so I'm going to post it for download in the original OP. and am I allowed to post anything in the releases section cause I have some custom Pointshop items I made that I would like to share as well.

[JamminR]

and am I allowed to post anything in the releases section cause I have some custom Pointshop items I made that I would like to share as well.

As long as the code works reasonably well, and you can support when it doesn't.
We'd strongly prefer any releases be related to ULib in some way, etc.

[ChaosWolf]

this is why I ask before doing things like that. perhaps a new board can be made for developers who complete scripts and have a place to share them. I mean, im not a terribad coder, I just suck at tables and vectors... all things in good time though.