Need to clear out dumb errors that don't affect the game

ID:262052
 
Jul 19 2004, 12:17 pm
I am puzzled at the problem with this code. I can compile teh game fine, but get these run-time errors.

here's a portion of the first error set:
proc name: New (/obj/hud/HUDbl/New)
usr: King Gunnerblast (/mob)
src: HUDbl (/obj/hud/HUDbl)
call stack:
HUDbl (/obj/hud/HUDbl): New(null)
King Gunnerblast (/mob): huds()
Observe (114,7,3) (/turf/Observe): Click(Observe (114,7,3) (/turf/Observe))
runtime error: Cannot read null.screen
proc name: New (/obj/hud/TiVo/New)
usr: King Gunnerblast (/mob)
src: TiVo (/obj/hud/TiVo)
call stack:

ETC (same for the rest of the HUD)...

and here's the code:

mob/proc
    huds()
        var/t=0
        if(t==0)
            client.screen+= new/obj/hud/HUDbl
            client.screen+= new/obj/hud/TiVo


I must fix this or the server shuts down due to too many errors.

-please help, King Gunnerblast
Jul 19 2004, 12:51 pm
what is that code supposed to do?
Jul 19 2004, 12:53 pm
Clearly client is null when this error occurs. (You can tell just by reading the error message. What else would be the null in null.screen?) So put in a test for whether the client actually exists before reading those vars. Better still, just bail out of the proc from the beginning if there isn't a client.

Lummox JR
Jul 19 2004, 12:53 pm
In response to Siefer
Well, 
client.screen+= new/obj/hud/HUDbl
shows that it is a HUD, and, well, I made a proc so the HUD only comes up if you Click Observe.
Jul 19 2004, 12:56 pm
In response to Lummox JR
Well sorry to be a bit of a n00b with client, but all I know is that 
client
    script = "<STYLE>BODY {background: silver; color: white}</STYLE>"
    New()
        ..()
        new/obj/hud/HUDbl(src)
        new/obj/hud/HUDbottom(src)
        new/obj/hud/HUDbr(src)
works. Did that help?
Jul 20 2004, 3:08 am
In response to King Gunnerblast
Everything looks seems fine, until I run the game. Then, I get a crapload of run-time errors...
Jul 21 2004, 5:49 pm
In response to King Gunnerblast
Try to download hud buttons demo by straytian rouge I was working on my first game and had working HUD buttons after reading this demo it helps
Jul 21 2004, 7:47 pm
In response to King Gunnerblast
What Lummox said.

Here's an example: (You don't need to use the example proc name, of course, and you shouldn't anyway because it will just confuse matters. =)

mob/proc/blajhlkhafdgh()
   if (!client) return // Bail out of this proc if there is no client

   // *** HUD adding code goes here ***