How can I make aquisition range ignore units behind?

[streetpunk]

How can I make aquisition range ignore units behind? I want to make so that a unit that is lurking behind doesn't get caught or seen by the aquisition range.

 

[Kaijyuu]

Impossible with base engine. Plausible to trigger if you're only using melee units. Difficult if not impossible to trigger for ranged units, since they need their object editor acquisition range to be greater than or equal to their attack range to actually fire their ranged attack.

 

[streetpunk]

I have come up with the following triggers:
For both melee and ranged units,the unit holds it's position, but turns to face the other unit. If you come whithin attack range it will attack.

• Stealth Debug
  • Events
    • Unit - A unit enters (Playable map area)
  • Conditions
  • Actions
    • Unit Group - Pick every unit in (Units in (Playable map area)) and do (Actions)
      • Loop - Actions
        • Trigger - Add to Stealth 1 <gen> the event (Unit - (Picked unit) Acquires a target)

• Stealth 1
  • Events
  • Conditions
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • ((Facing of (Triggering unit)) + 120.00) Greater than or equal to (Facing of (Targeted unit))
        • ((Facing of (Triggering unit)) - 120.00) Less than or equal to (Facing of (Targeted unit))
      • Then - Actions
        • Unit - Order (Triggering unit) to Hold Position
      • Else - Actions

 

[Dr Super Good]

I have come up with the following triggers:

Stealth 1 has incorrect angle test logic? Where is the angle between triggering and targeted unit computed? I do not think it handles angular wrap around correctly.

 

[streetpunk]

It is set to 120 so the unit can't also see from it's sides, only in front.

 

[Dr Super Good]

It is set to 120 so the unit can't also see from it's sides, only in front.

It does not factor in angular wrap around and uses the facing of the targeted unit instead of the angle between triggering unit and target unit.

Try the single conditional test...
(Cos((angle_to_target) - (Facing of (Triggering unit)))) Less than or equal (Cos(120))

where angle_to_target is the angle from triggering unit position to target unit position. Since locations leak if not cleaned up it cannot be in lined into the test without at least assigning the points (locations) to variables for clean-up later. This works by using the symmetric nature of cosine around 0 and 180 degrees. It is also faster than other tests due to less JASS virtual machine overhead despite technically being a more complex operation.

 

[Fruit Forest]

How can I make aquisition range ignore units behind? I want to make so that a unit that is lurking behind doesn't get caught or seen by the aquisition range.

Technically you can set vision range to 0 and give to all units the dummy with vision range. The dummy unit would moved to a front of the unit.

 

[streetpunk]

Dr Super Good condition returns true either if the unit is behind or front, maybe I did something wrong:

• ((Cos((Angle from (Position of (Triggering unit)) to (Position of (Targeted unit))))) - (Facing of (Triggering unit))) Less than or equal to (Cos(120.00))

Fruit Forest: If I set the Sight Radius stat to 0 the unit still attacks because of it's aquisition range, if the acquisition range is set to 0, then the unit won't attack neither units in front or in the back

 

[Fruit Forest]

Fruit Forest: If I set the Sight Radius stat to 0 the unit still attacks because of it's aquisition range, if the acquisition range is set to 0, then the unit won't attack neither units in front or in the back

I mean set vision range to 0. and create dummy with vision range which get moved on front of the each unit.

 

[streetpunk]

I'll explore your suggestion, apparently it works on a clean test map, but not in my map. I'll see to it then come post the results.

EDIT: Ok, it works, however it only works if fog of war and black mask are activated. There's still the issue of how to set the vision of the dummy unit to be equal of the other unit. I needed it to work with black mask and fog of war desactivated too. I tried to deactivate blackmask and fog of war for 1 player only with GetLocalPlayer but had no success.

 

[Fruit Forest]

I tried to deactivate blackmask and fog of war for 1 player only with GetLocalPlayer but had no success.

You need to create visible modifier then enable it.

 

[streetpunk]

It works now, who would dare to say it was such a easy sulution. Now the only problem is: How I will set the dummy unit vision (sight radius) to be equal to the unit's acquisition range?

 

[Fruit Forest]

It works now, who would dare to say it was such a easy sulution. Now the only problem is: How I will set the dummy unit vision (sight radius) to be equal to the unit's acquisition range?

The vision range can't be regulated with triggers, but you may use item bonus which increases vision sight. Create more such abilities and add it to dummy unit according to their acquistion range.

 

[streetpunk]

you know which ability has that? I look for goblin scope and found nothing.

 

[Fruit Forest]

you know which ability has that? I look for goblin scope and found nothing.

Goblin scope item ability is the right ability. (Find Goblin scope in the item list and determine its item ability) It doesn't leveled so you have to create more abilities with various values of vision sight.

EDIT or create few dummies with various vision range values.

 

[Dr Super Good]

Dr Super Good condition returns true either if the unit is behind or front, maybe I did something wrong:

It is "Cos(angle - angle)" not "Cos(angle) - angle". The angle difference has to be fed into the cosine function for it to make any sense.

 

[doom_sheep]

you could make them workers and create a dummy which acquires targets for them

 

[streetpunk]

DSG I'll try fixing it, a single condition seems better and more functional.

doom_sheep I didn't understand what you meant, can you please explain?

 

[doom_sheep]

make the unit itself not get aggro on things. create a dummy unit which does and is periodically moved to its position.

when the dummy acquires a target, check if it's valid and pass it on to the unit.

 

[streetpunk]

All right, so I have come up with the following triggers and it's working agaisnt non-user controlled players. Maybe we can post this on resource section as an Stealth System, but of course it may need some adjustments. To make it work with user-controlled units we just need to ignore the Stealth Debug trigger, the fog of war and black mask will be enabled and the units will be able to see only at front to the limit of their acquisition range. Maybe we can post this on resource section as a Stealth System, after doing the necessary adjustments if needed.

Trigger to configure user controlled player's vision

• Stealth Debug
  • Events
    • Time - Elapsed game time is 1.00 seconds
  • Conditions
  • Actions
    • Player Group - Pick every player in (All players controlled by a User player) and do (Actions)
      • Loop - Actions
        • Visibility - Create an initially Enabled visibility modifier for (Picked Player) emitting Visibility across (Playable map area)

Periodic trigger that creates and adjusts the dummy unit's vision

• Stealth Periodic
  • Events
    • Time - Every 0.50 seconds of game time
  • Conditions
  • Actions
    • Unit Group - Pick every unit in (Units in (Playable map area)) and do (Actions)
      • Loop - Actions
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • DummyVision[(Custom value of (Picked unit))] Equal to No unit
          • Then - Actions
            • Set Loc1 = ((Position of (Picked unit)) offset by (Current acquisition range of (Picked unit)) towards (Facing of (Picked unit)) degrees)
            • Unit - Create 1 Dummy Unit for (Owner of (Picked unit)) at Loc1 facing Default building facing degrees
            • Set DummyVision[(Custom value of (Picked unit))] = (Last created unit)
            • Custom script: call RemoveLocation(udg_Loc1)
          • Else - Actions
            • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
              • If - Conditions
                • VisionAdjust[(Custom value of DummyVision[(Custom value of (Picked unit))])] Equal to False
              • Then - Actions
                • Set Loc1 = ((Position of (Picked unit)) offset by (Current acquisition range of (Picked unit)) towards (Facing of (Picked unit)) degrees)
                • Unit - Move DummyVision[(Custom value of (Picked unit))] instantly to Loc1
                • Set VisionInteger = (Integer((Current acquisition range of (Picked unit))))
                • Set Some_Unit = DummyVision[(Custom value of (Picked unit))]
                • Trigger - Run Stealth Vision <gen> (ignoring conditions)
                • Custom script: call RemoveLocation(udg_Loc1)
              • Else - Actions

Trigger to make the sight radius of the dummy unit be equal to the acquisition range of the unit it follows

• Stealth Vision
  • Events
  • Conditions
  • Actions
    • Set VisionInteger = (VisionInteger - (Integer((Current acquisition range of Some_Unit))))
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • VisionInteger Greater than 0
      • Then - Actions
        • Set Loop_Integer = ((VisionInteger - (VisionInteger mod 100)) / 100)
        • For each (Integer A) from 1 to Loop_Integer, do (Actions)
          • Loop - Actions
            • Unit - Add Vision to Some_Unit
            • Unit - Set level of Vision for Some_Unit to 4
            • Unit - Remove Vision from Some_Unit
        • Set VisionInteger = (VisionInteger mod 100)
        • Set Loop_Integer = ((VisionInteger - (VisionInteger mod 10)) / 10)
        • For each (Integer A) from 1 to Loop_Integer, do (Actions)
          • Loop - Actions
            • Unit - Add Vision to Some_Unit
            • Unit - Set level of Vision for Some_Unit to 3
            • Unit - Remove Vision from Some_Unit
        • Set VisionInteger = (VisionInteger mod 10)
        • For each (Integer A) from 1 to Max_Hp, do (Actions)
          • Loop - Actions
            • Unit - Add Vision to Some_Unit
            • Unit - Set level of Vision for Some_Unit to 2
            • Unit - Remove Vision from Some_Unit
      • Else - Actions
        • Set VisionInteger = (0 - VisionInteger)
        • Set Loop_Integer = ((VisionInteger - (VisionInteger mod 100)) / 100)
        • For each (Integer A) from 1 to Loop_Integer, do (Actions)
          • Loop - Actions
            • Unit - Add Vision to Some_Unit
            • Unit - Set level of Vision for Some_Unit to 7
            • Unit - Remove Vision from Some_Unit
        • Set VisionInteger = (VisionInteger mod 100)
        • Set Loop_Integer = ((VisionInteger - (VisionInteger mod 10)) / 10)
        • For each (Integer A) from 1 to Loop_Integer, do (Actions)
          • Loop - Actions
            • Unit - Add Vision to Some_Unit
            • Unit - Set level of Vision for Some_Unit to 6
            • Unit - Remove Vision from Some_Unit
        • Set VisionInteger = (VisionInteger mod 10)
        • For each (Integer A) from 1 to Max_Hp, do (Actions)
          • Loop - Actions
            • Unit - Add Vision to Some_Unit
            • Unit - Set level of Vision for Some_Unit to 5
            • Unit - Remove Vision from Some_Unit
    • Set VisionAdjust[(Custom value of Some_Unit)] = True

 

[Dr Super Good]

Stealth Debug will almost certainly cause an OOS in multiplayer.

Stealth Periodic leaks and is almost certainly not viable for any map of reasonable complexity.

 

[streetpunk]

I think there's no need for getlocalplayer on the stealth debug trigger anyway (if that's what will cause OOS). how can we improve stealth periodic ?

By the way this system isn't working with neutral hostile units, can anyone guess why ?

 

[streetpunk]

bumping thread