runtime error

ID:170800
 
Dec 14 2004, 6:10 am
everytime i compile this piece of coding its perferct and ready but when i test it.

runtime error: Cannot modify null.LockMovement.
proc name: Body Copy (/mob/swap/verb/Finalpash)
  source file: skills.dm,3376
  usr: the game crasher (/mob/player/Sayain)
  src: the game crasher (/mob/player/Sayain)
  call stack:
the game crasher (/mob/player/Sayain): Body Copy(null)


but heres the coding

mob
    swap
        verb
            Finalpash(mob/M in oview(6))
                set name = "Body Copy"
                set category = "Fighting"
                if(M.PowerLevel <= 0)
                 if(usr.ki >= 19)
                  if(usr.stamina >= 50)
                   if(usr.swapping == 0)
                       var/dam = usr.maxPowerLevel
                       if(dam == usr.maxPowerLevel)
                           view(6) << "<font size = 1><B>[usr] creeps under [M] skin and steals [M] body"
                           usr.loc = M.loc
                           M.LockMovement = 1
                           usr.LockMovement = 1
                           sleep(35)
                           usr.swapping = 1
                           usr.icon = M.icon
                           usr.icon_state = M.icon_state
                           M.PowerLevel -= dam
                           M.DeathCheck()
                           usr.firing = 0
                           M.LockMovement = 0
                           usr.LockMovement = 0
                           usr.stamina -= 50
                           usr.ki -= 20
                    else
                     usr << "Chill [usr] you already stolen a body"
                   else
                    usr << "You need to rest"
                  else
                   usr << "Your out of ki"
                else
                 usr << "[M] powerlevel must be below 0"


Dec 14 2004, 6:13 am
Which line is: 3376. That will help us narrow the problem down.
Dec 14 2004, 6:15 am
is the last piece of coding on the skills page
Dec 14 2004, 6:16 am
In response to N1ghtW1ng
it could be the lockmovement usr.lockmovement and M.lockmovement thats the whole problem. but my other attacks work fine like
mob
    flare
        verb
            Finalpash(mob/M in oview(6))
                set name = "Solar Flare"
                set category = "Fighting"
                if(M.pk == 1)
                 if(usr.ki >= 0)
                  if(usr.stamina >= 2)
                   if(usr.firing == 0)
                       var/dam = usr.str||usr.defense||usr.Level
                       if(dam == usr.str||usr.defense||usr.Level)
                           view(6) << "<B><font color = gray>[usr]<font color = white> : SOLAR FLARE!!!!!"
                           view(6) << "<font size = 1><B>[usr] blinds [M]"
                           M.LockMovement = 1
                           usr.LockMovement = 0
                           usr.icon_state = "meditate"
                           M.overlays += 'join1.dmi'
                           sleep(5)
                           usr.icon_state = ""
                           sleep(55)
                           usr.icon_state = ""
                           M.overlays -= 'join1.dmi'
                           usr.firing = 0
                           M.LockMovement = 0
                           usr.LockMovement = 0
                           M.PowerLevel -= dam
                           usr.stamina -= 10
                           usr.icon_state = ""
                    else
                     usr << "Chill [usr] your already attacking"
                   else
                    usr << "You need to rest"
                  else
                   usr << "Your out of ki"
                else
                 usr << "There not PK"
Dec 14 2004, 6:16 am
In response to Jiamind
Designate it with a // or something, I can't tell what you mean.
Dec 14 2004, 6:18 am
In response to Jiamind
Ah, I think I know your problem. Make a sanity check to see if the other mob is still active.
Dec 14 2004, 6:18 am
In response to N1ghtW1ng
// ?
Dec 14 2004, 6:19 am
In response to N1ghtW1ng
i never seen a sanity check so what would that look like ?
is that like a loop_check = 0 ?
Dec 14 2004, 6:19 am
In response to Jiamind
Nevermind that post.
Dec 14 2004, 6:24 am
In response to N1ghtW1ng
ok so.. ? wats sanity ?
Dec 14 2004, 6:26 am
In response to Jiamind
No, you don't want to do that. That prevents infinite loops from showing up, which end up crashing the server. You want them to show up, so you can fix them. Here, I edited the spaces to tabs, so it would work right in my compiler...and made it easier to read.

mob
    swap
        verb
            Finalpash(mob/M in oview(6))
                set name = "Body Copy"
                set category = "Fighting"
                if(M.PowerLevel <= 0)
                    if(usr.ki >= 19)
                        if(usr.stamina >= 50)
                            if(usr.swapping == 0)
                                var/dam = usr.maxPowerLevel
                                if(dam == usr.maxPowerLevel)
                                    if(M)//Sanity Check, it checks to see if M is still active
                                        view(6) << "<font size = 1><B>[usr] creeps under [M] skin and steals [M] body"
                                        usr.loc = M.loc
                                        M.LockMovement = 1
                                        usr.LockMovement = 1
                                        sleep(35)
                                        usr.swapping = 1
                                        usr.icon = M.icon
                                        usr.icon_state = M.icon_state
                                        M.PowerLevel -= dam
                                        M.DeathCheck()
                                        usr.firing = 0
                                        M.LockMovement = 0
                                        usr.LockMovement = 0
                                        usr.stamina -= 50
                                        usr.ki -= 20
                            else
                                usr << "Chill [usr] you already stolen a body"
                        else
                            usr << "You need to rest"
                    else
                        usr << "Your out of ki"
                else
                    usr << "[M] powerlevel must be below 0"


I did not try it out, but it should work. Also a few of those things, like Icon = Icon and loc = loc and Icon_State = Icon_State won't work I think. You might need to store each of the original vars, into a different var and then call that var into the new one...or something like that.
Dec 14 2004, 6:33 am
In response to N1ghtW1ng
thanks i got it nightwing now you can play as all monsters
Dec 14 2004, 6:35 am
In response to Jiamind
No problemo, but did that make it work?
Dec 14 2004, 6:35 am
In response to N1ghtW1ng
yeah no runtime errors