What am I doing wrong with this Backstab ability?

02-21-2007, 11:21 PM

Okay, so in this map I'm toying around with, I'm trying to make a triggered Backstab-like spell that does more damage if you are attacking from behind. This is the important part of this trigger, the one that deals with the facing angles:

Trigger:

If - Conditions

Or - Any (Conditions) are true

Conditions

(Angle from (Position of Warden) to (Position of (Target unit of ability being cast))) Greater than or equal to ((Facing of (Target unit of ability being cast)) - 160.00)

(Angle from (Position of Warden) to (Position of (Target unit of ability being cast))) Less than or equal to ((Facing of (Target unit of ability being cast)) - 200.00)

Trouble is, no matter what I seem to do the trigger ALWAYS registers as a Backstab. I could be staring directly at the unit face to face and it will still go off. What am I doing wrong with these angles, and how can I fix them so that my unit can only be behind the unit in order to deal the extra damage?

02-21-2007, 11:26 PM

Mythic Fr0st

please use the GUI tag over your code, its 7 icons right of the "quote" tag

ALSO...

Try

Trigger:

If Facing Of Triggering unit greater than or equal to Facing Of Target Unit of Ability Being Cast - 160

If Facing Of Triggering unit less than or equal to Facing Of Target Unit of Ability Being Cast - 200

and have - Or Any conditions are true, you want both of these to be true, so its greater than 160, and less than 200

02-21-2007, 11:31 PM

cacophony

Quote:

Originally Posted by Mythic Fr0st

please use the GUI tag over your code, its 7 icons right of the "quote" tag

ALSO...

Try

Trigger:

If Facing Of Triggering unit greater than or equal to Facing Of Target Unit of Ability Being Cast - 160

If Facing Of Triggering unit less than or equal to Facing Of Target Unit of Ability Being Cast - 200

and have - Or Any conditions are true, you want both of these to be true, so its greater than 160, and less than 200

Unfortunately your suggestion is kind of how I started out before I was told to change it. Although it would seem to work, it's terribly inaccurate as it doesn't take in their relative positions to one another when determining if it is from behind.

02-21-2007, 11:38 PM	#4
Mythic Fr0st	Then remove the Or - Any Conditions are true AS that will do it if angle is less than the facing of the target unit of ability being cast - 200 or if its greater than targ unit of abl being cast - 160 it will select 1, not both... therefore messing up

02-22-2007, 12:02 AM	#5
Pyrogasm	There's a big, complicated way to solve this. And here's the thread: Backstab System

02-22-2007, 12:38 AM

cacophony

Quote:

Originally Posted by Pyrogasm

There's a big, complicated way to solve this.

And here's the thread: Backstab System

I tried importing your Backstab system into my map, but I always get a compile error on line 6311 where it expects a name. Is there something I'm not doing right? I imported all the variables.

02-22-2007, 01:21 AM	#7
Pyrogasm	My system? None of those are mine. Post what you're trying to import/screenshots of what you've done and maybe I can troubleshoot.

02-22-2007, 01:27 AM	#8
cacophony	The error comes from this line of code: Code: set udg_Angle = Angles_GetAngleDifference( GetUnitFacing(GetTriggerUnit()), GetUnitFacing(GetAttacker()) ) Line 6311: Expected a name. What the variable is is anybody's guess.

02-22-2007, 01:45 AM	#9
Pyrogasm	Did you make a varible of type 'real' called "Angle"? Capitilization matters, and the "udg_" is just a JASS thing that stands for 'User defined global', which is attached to every variable declared in the variable editor.

02-22-2007, 02:12 AM	#10
cacophony	Yes, I'll try making a new variable with the same name though.

02-22-2007, 03:16 AM	#11
Pyrogasm	You could also try disabling the line that says Trigger: Custom script: local real udg_Angle

02-22-2007, 11:42 AM	#12
cacophony	Yeah, I'm still getting the same compile error.

02-23-2007, 02:07 AM	#13
cacophony	I should add that it doesn't crash the map or disable the trigger. It just gives the error and leaves the trigger as is when I save.

02-23-2007, 02:20 AM

#14

Pyrogasm

Ok; I know for a fact that this works. Copy this into the "map script" section:

JASS:

   function Angles_GetAngleDifference takes real a1, real a2 returns real
       local real x
       set a1=ModuloReal(a1,360)
       set a2=ModuloReal(a2,360)
       if a1>a2 then
           set x=a1
           set a1=a2
           set a2=x
       endif
       set x=a2-360
       if a2-a1 > a1-x then
           set a2=x
       endif
       set x=a1-a2
       if (x<0) then
           return -x
       endif
       return x
   endfunction