[Solved] Damage Between Two Points

[Warseeker]

How can I pick every units between two points and deal damage to them? Let's say I have Point A and Point B, I want any unit that crosses the red line between those two points to die instantly like in the example below :

I know some of you will say : why don't you just use regions? Well, that's because it's not like those two points will always be horizontal/vertical, this is just an example. What I am planning to do is to make a spell that creates a circle around the caster that kills all units that tries to enter/leave the circle. Like in the example below :

Now, I do know how to make circular damage using the trigger below. But I don't want it to be a circle because one of the dummies (Banshee) may get killed before they reach the caster which will then make that area safe. Let's say B dies, then the area between (B - A) and (B - C) will be safe to cross.

Trigger

• Call of the Highborne Loop
  • Events
    • Time - Every 0.10 seconds of game time
  • Conditions
  • Actions
    • Set COH_MoveRange = (COH_MoveRange - 5.00)
    • Set COH_DamageRange = (COH_DamageRange - 5.00)
    • Unit - Move COH_Dummy[1] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 315.00 degrees), facing COH_CasterLoc
    • Unit - Move COH_Dummy[2] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 270.00 degrees), facing COH_CasterLoc
    • Unit - Move COH_Dummy[3] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 225.00 degrees), facing COH_CasterLoc
    • Unit - Move COH_Dummy[4] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 180.00 degrees), facing COH_CasterLoc
    • Unit - Move COH_Dummy[5] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 135.00 degrees), facing COH_CasterLoc
    • Unit - Move COH_Dummy[6] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 90.00 degrees), facing COH_CasterLoc
    • Unit - Move COH_Dummy[7] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 45.00 degrees), facing COH_CasterLoc
    • Unit - Move COH_Dummy[8] instantly to ((Position of COH_Caster) offset by COH_MoveRange towards 0.00 degrees), facing COH_CasterLoc
    • Lightning - Move COH_Lightning[1] to source (Position of COH_Dummy[1]) and target (Position of COH_Dummy[2])
    • Lightning - Move COH_Lightning[2] to source (Position of COH_Dummy[2]) and target (Position of COH_Dummy[3])
    • Lightning - Move COH_Lightning[3] to source (Position of COH_Dummy[3]) and target (Position of COH_Dummy[4])
    • Lightning - Move COH_Lightning[4] to source (Position of COH_Dummy[4]) and target (Position of COH_Dummy[5])
    • Lightning - Move COH_Lightning[5] to source (Position of COH_Dummy[5]) and target (Position of COH_Dummy[6])
    • Lightning - Move COH_Lightning[6] to source (Position of COH_Dummy[6]) and target (Position of COH_Dummy[7])
    • Lightning - Move COH_Lightning[7] to source (Position of COH_Dummy[7]) and target (Position of COH_Dummy[8])
    • Lightning - Move COH_Lightning[8] to source (Position of COH_Dummy[8]) and target (Position of COH_Dummy[1])
    • Custom script: set bj_wantDestroyGroup = true
    • Unit Group - Pick every unit in (Units within COH_DamageRange of COH_CasterLoc matching ((Unit-type of (Matching unit)) Different than Banshee)) and do (Actions)
      • Loop - Actions
        • Set COH_PickedUnits = (Picked unit)
        • Set COH_PickedUnitsLoc = (Position of COH_PickedUnits)
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • (Distance between COH_CasterLoc and COH_PickedUnitsLoc) Greater than or Equal to COH_MoveRange
          • Then - Actions
            • Unit - Kill (Picked unit)
            • Custom script: call RemoveLocation (udg_COH_PickedUnitsLoc)
          • Else - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • COH_MoveRange Equal to 100.00
      • Then - Actions
        • Custom script: call RemoveLocation (udg_COH_CasterLoc)
        • For each (Integer A) from 1 to 8, do (Unit - Remove COH_Dummy[(Integer A)] from the game)
        • For each (Integer A) from 1 to 8, do (Lightning - Destroy COH_Lightning[(Integer A)])
        • Unit - Make COH_Caster Vulnerable
        • Unit - Unpause COH_Caster
        • Animation - Reset COH_Caster's animation
        • Trigger - Turn off (This trigger)
      • Else - Actions

 

[IcemanBo]

Line Segment Enumeration .v2.1a

Have a look at the "How to use" trigger, you can define 2 points and the allowed offset/width of the line, and then pick units inside it.

 

[Warseeker]

Line Segment Enumeration .v2.1a

Have a look at the "How to use" trigger, you can define 2 points and the allowed offset/width of the line, and then pick units inside it.

Thanks! This is exactly what I was looking for! One problem though, if I want to make more than just 2 points like A,B,C,D, Do I have to create four loop for for each two of them? I tried to create two more copies of the LSE_Loc variable but it didn't work and I honestly didn't understand anything in that jass trigger.

 

[IcemanBo]

It needs to be done seperately for each line, like:

1. Define line from A - B -> kill units
2. Define line from B - C -> kill units
3. Define line from C - D -> kill units

Copies of the variables aren't needed. Does it help?

 

[Warseeker]

Yeah, I think I got it. I'm just changing the position of the points for each line like :

• Loc1 = A | Loc2 = B
  
• Loc1 = B | Loc2 = C
• Loc1 = C | Loc2 = D
  
• Loc1 = D | Loc2 = A

Then I use a boolean to check whether the point is active or not. It seems to work just fine that way but I don't know if it's safe though.

 

[IcemanBo]

I think it's fine, but post if you find issues with it.

 

[Devalut]

I was pondering on this very subject a number of months back, @AutisticTenacity helped me out and made the main trigger in this one, I made my own variation of it and added some fancy effects.

SingleEnumBeam - Version Devalut | HIVE

 

[Warseeker]

It's working! I was able to get it to work on the spell and haven't had any issues so far.

This thread is now marked as solved.