Angle Comparison Issue

[Danis[h]]

Angle Comparison Issue [RESOLVED]

Solved

Okay, so basically what I'm trying to do is this: I want the game to detect whether or not a rotating unit is facing towards a unit in passing when it runs by..

Basically, the players have to follow a path, and if the "sentry" (in this case a banshee) they run past is facing towards the spot they're running by, I want the game to react.. yet I can't seem to get the angle comparison right.

This is what I've got so far.

• Banshee one
  • Events
    • Unit - A unit enters Banshee 1 <gen>
    • Unit - A unit enters Banshee 2 <gen>
  • Conditions
  • Actions
    • For each (Integer A) from 1 to NumBanshee, do (Actions)
      • Loop - Actions
        • Set TmpPoint[5] = (Position of (Triggering unit))
        • Set TmpPoint[6] = (Position of Banshee[(Integer A)])
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • (Distance between TmpPoint[5] and TmpPoint[6]) Less than or equal to 350.00
            • (Facing of Banshee[(Integer A)]) Less than or equal to ((Angle from TmpPoint[5] to TmpPoint[6]) + 20.00)
            • (Facing of Banshee[(Integer A)]) Greater than or equal to ((Angle from TmpPoint[5] to TmpPoint[6]) - 20.00)
          • Then - Actions
            • Game - Display to (All players) the text: Works
          • Else - Actions

Trying to compare the angle between the two points (position of unit entering region, to position of senty (banshee) and then the facing of the banshee.

NOTE: I am going to remove the locations, once I've got this working.

Update: I'm assuming it calculates the angle in relation to the x-axis which would explain why the above comparison wasn't working. Now I just don't know how to make the comparison

 

[SaintMorose]

the angle from 5-6 is different than the angle from 6-5

 

[Danis[h]]

the angle from 5-6 is different than the angle from 6-5

Yea, I wanted it to work if the angle was in-between those two values.
So lets say that angle 1 is 40
then if angle two is in-between 20 to 60, it should work.

if this is not what you meant, could you please specify it more clearly? I'm a bit at a loss on this issue.

 

[SaintMorose]

problem with angles is 350 + 20 = 10 which may be part of it

my question is you want it to say Works if the Banshee is facing triggering unit or facing the opposite direction?

 

[Danis[h]]

problem with angles is 350 + 20 = 10 which may be part of it

my question is you want it to say Works if the Banshee is facing triggering unit or facing the opposite direction?

I want for it to work only when the banshee is facing towards the triggering unit.

 

[SaintMorose]

I want for it to work only when the banshee is facing towards the triggering unit.

then your main problem remains to be that the angle from 5-6 is different than the angle from 6-5

try switching them

 

[Danis[h]]

then your main problem remains to be that the angle from 5-6 is different than the angle from 6-5

try switching them

Could you be a little more concise about what you mean? :S

 

[SaintMorose]

• * Set TmpPoint[5] = (Position of (Triggering unit))
  • * Set TmpPoint[6] = (Position of Banshee[(Integer A)])

should read

• * Set TmpPoint[6] = (Position of (Triggering unit))
  • * Set TmpPoint[5] = (Position of Banshee[(Integer A)])

 

[Danis[h]]

• * Set TmpPoint[5] = (Position of (Triggering unit))
  • * Set TmpPoint[6] = (Position of Banshee[(Integer A)])

should read

• * Set TmpPoint[6] = (Position of (Triggering unit))
  • * Set TmpPoint[5] = (Position of Banshee[(Integer A)])

didnt seen to work. Does anyone else have any suggestions?... The angle the banshee is facing is not fixed, it changes all the time.

update:
Okay so here is an attempt at a visualization of the issue. I am assuming that warcraft III calculates a facing angle, and the angle between two points relative to the x-axis. This assumption is made because warcraft 3

So assuming I have two points “A” and “B.” Point A is the point of my triggering unit and B is the position of the banshee. The angle between these two points I’ll name “u”
Now I have a second angle, which will be the facing angle of the banshee. This angle I’ll name “v”.

Now from this image, the facing angle of the banshee at B is definitely not pointed towards A. What I need now though is a way to see whether or not v is pointed in the general direction of the position A.
I’m trying to do this by comparing the two angles, but I’m stuck on the issue.