[General] Nearest Unit

[scourge069]

Hello hivers, I just want to know how to determine the nearest unit from a point in GUI..thanks in advance ..

 

[jonhysone]

It will take tons of tons of tons of triggers.
Maybe you should try this (JASS) :
http://www.hiveworkshop.com/forums/jass-resources-412/snippet-getclosestwidget-204217/

You can detect nearby units/doodads, but you can't detect the nearest easily

 

[Xonok]

Nearest is actually not that hard. Just needs some thinking to get straight.

First you enumerate(pick every unit in group) a group of units.
Set a real variable to 999999 or any other high number and a unit variable to "no unit".
Check for each unit in the group(pick every unit in group) if they are closer than the real variable, if so, then set the real to distance between them and your point of reference.

 

[scourge069]

Nearest is actually not that hard. Just needs some thinking to get straight.

First you enumerate(pick every unit in group) a group of units.
Set a real variable to 999999 or any other high number and a unit variable to "no unit".
Check for each unit in the group(pick every unit in group) if they are closer than the real variable, if so, then set the real to distance between them and your point of reference.

Trying this one right now..

 

[Tal'Rarity]

Currently trying to make one for you so if you don't figure it out eventually, hopefully I will.

 

[Nichilus]

What Xonok wrote is the standard approach.

• Set ClosestUnit = No unit
• Set ShortestDistance = 900000.00
• Set StartPoint = *somewhere*
• Custom script: set bj_wantDestroyGroup = true
• Unit Group - Pick every unit in (Units within 900.00 of StartPoint matching (((Matching unit) is alive) Equal to True)) and do (Actions)
  • Loop - Actions
    • Set PickedUnit = (Picked unit)
    • Set UnitLocation = (Position of PickedUnit)
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Distance between StartPoint and UnitLocation) Less than ShortestDistance
      • Then - Actions
        • Set ClosestUnit = PickedUnit
        • Set ShortestDistance = (Distance between StartPoint and UnitLocation)
      • Else - Actions
    • Custom script: call RemoveLocation(udg_UnitLocation)
• Custom script: call RemoveLocation(udg_StartLocation)
• Custom script: set udg_StartLocation = true
• Custom script: set udg_UnitLocation = true

Where UnitLocation and StartLocation and point variables, PickedUnit and ClosestUnit are unit variables and ShortestDistance is real variable.
ATM that trigger picks the closest unit to some point, if you do this for spells, don't forget to correctly set up conditions for the unit group pick.
After this part of code the closest unit is saved in ClosestUnit variable.

Also, if you inverse this logic, you can also pick the furthest unit from a point in certain radius of that point.

 

[Vinz]

You can also use this technique in many kinds of loops, such as finding the highest/lowest health/mana within an area or a group.

 

[scourge069]

thanks everyone who replied..I already figured this one out thanks to Xonok ..

 

[scourge069]

Currently trying to make one for you so if you don't figure it out eventually, hopefully I will.

that won't be necessary..thanks anyway ..