Find Closest Actor (Kismet)

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#Kismet

Modified @ 2024-01-11 19:20:37

Finds the closest actor to a reference actor, from a list of actors.

As stated, this will search through a list of actors, and find the closest actor to the reference actor you choose. Very handy!

The variables:

Target = The reference actor. (Object)

Points = The list of actors (Object/List)

Result = The resulting closest actor, outputted to a connected object variable.

Ink_SeqAct_FindClosestActor.uc

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/**
 *
 * Copyright 2021 Gears for Breakfast ApS. All Rights Reserved.
 */
 
 
class Ink_SeqAct_FindClosestActor extends SequenceAction;
 
var() Actor Target;
var() Array<Actor> Points;
var() bool IgnoreZ;
 
var Actor ActorResult;
 
event Activated()
{
    local Actor CurrPoint, BestTarget;
    local float CurrentDist, BestDist;
 
    if (Target != None && Target.IsA('Controller') && Controller(Target).Pawn != None)
        Target = Controller(Target).Pawn;
 
    if (Target != None && Points.Length > 0)
    {
        foreach Points(CurrPoint)
        {
            if (CurrPoint == None) continue;
            if (Controller(CurrPoint) != None && Controller(CurrPoint).Pawn != None) CurrPoint = Controller(CurrPoint).Pawn;
 
            CurrentDist = VSizeSq((CurrPoint.Location - Target.Location)*(IgnoreZ ? Vect(1,1,0) : Vect(1,1,1)));
            if (BestTarget != None && CurrentDist >= BestDist) continue;
 
            BestTarget = CurrPoint;
            BestDist = CurrentDist;
        }
    }
    else
        BestTarget = None;
 
    ActorResult = BestTarget;
    ActivateOutputLink(0);
}
 
static event int GetObjClassVersion()
{
    return Super.GetObjClassVersion() + 1;
}
 
defaultproperties
{
    ObjName="Find Closest Actor (Template)"
    ObjCategory="Ink Kismet"
    bCallHandler=false;
    bAutoActivateOutputLinks=false;
 
    VariableLinks.Empty;
    VariableLinks(0)=(ExpectedType=class'SeqVar_Object', LinkDesc="Target", PropertyName=Target);
    VariableLinks(1)=(ExpectedType=class'SeqVar_Object', LinkDesc="Points", PropertyName=Points);
    VariableLinks(2)=(ExpectedType=class'SeqVar_Object', LinkDesc="Result", PropertyName=ActorResult, bWriteable=TRUE);
}