Cannot modify null.location.

ID:144389
 
Dec 23 2006, 1:22 pm
Code:
runtime error: Cannot modify null.location.
proc name: Entered (/turf/travelboundaries/sound/Entered)
  usr: 0
  src: Boundary (189,265,1) (/turf/travelboundaries/sound)
  call stack:
Boundary (189,265,1) (/turf/travelboundaries/sound): Entered(Ikazuchi no Kibat (/obj/blasts/lightningbolt), Sand (188,265,1) (/turf/sand))
runtime error: Cannot modify null.location.
proc name: Entered (/turf/travelboundaries/sound/Entered)
  usr: 0
  src: Boundary (189,263,1) (/turf/travelboundaries/sound)
  call stack:
Boundary (189,263,1) (/turf/travelboundaries/sound): Entered(Raigeki no Yoroi (/obj/blasts/lightningblast), Rocks (188,263,1) (/turf/txmountay))


Problem description:
my host keep getting these error what is the source of them why do they occure help if possible ???
Dec 23 2006, 1:31 pm
It'd help if you showed the code of the procs involved.
Dec 24 2006, 8:33 am
In response to Audeuro
sound
Entered()
usr.location = "Sound"
Dec 24 2006, 8:40 am
In response to Domedaydevice141
sound
Entered()
usr<< "Sound"
Dec 24 2006, 8:41 am
In response to Vegetassj9
You're both wrong. usr should never be used in Entered() or any procedure related to movement (in fact, almost all procedures, really).
Dec 24 2006, 2:14 pm
In response to Popisfizzy
what is prefer then ?? src ??
Dec 24 2006, 2:19 pm
In response to Domedaydevice141
Depends on the procedure in question. Entered() provides you with an argument that is the atom/movable that entered the turf (NOT a mob, a /atom/movable). In Entered(), you would use that.
Dec 25 2006, 5:02 am
In response to Domedaydevice141
I highly suggest actually looking up the 'usr var' (and 'src var') entries in the DM Reference...