Difference between revisions of "Talk:FindClosestActorFromRef - Game"

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imported>Rasikko
(→‎SKSE alternative: Made a better function than the last one I made.)
imported>Rasikko
m (→‎SKSE alternative: Cleaned up function to make more readible.)
 
(One intermediate revision by the same user not shown)
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<source lang="papyrus">
<source lang="papyrus">
Actor Function GetClosestActorFromRef(ObjectReference akCenter) Global
Actor Function GetClosestActorFromRef(ObjectReference akCenter) Global
; returns the closest actor to akCenter. akCenter is excluded from the search.
;/ Returns the closest actor to akCenter. akCenter is excluded from the search.
          *1. Check if there is more than 128 actors or only akCenter.
          *2. Iterate through all actors found and record their distances to the player.
          *3. Find the smallest distance from the player and return the actor.
          *4. Valid types for actors: 43 or 62
        /;
; Arrays
ObjectReference[] kRefs = new ObjectReference[128]
ObjectReference[] kRefs = new ObjectReference[128]
Float[] fDistances = new Float[128]
Float[] fDistances = new Float[128]
; Forms
Cell kCell = akCenter.GetParentCell()
Cell kCell = akCenter.GetParentCell()
Int CellRefs = kCell.GetNumRefs(43)  
; Values
Int CellRefs = kCell.GetNumRefs(43) ; 43 = kNPC, 62 = kCharacter
Int i
Float fLowestValue = 1000000.0
Float fLowestValue = 1000000.0
Int i
if (CellRefs >= 129 || CellRefs == 1)
; Bail if the cell contains more actors than an array can hold.
if (CellRefs >= 129 || CellRefs == 0)
return none
return none
endif
endif
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endWhile
endWhile
; get the index of the actor that had the smallest distance from akCenter.
Int refIndex = fDistances.Find(fLowestValue)
        Int refIndex = fDistances.Find(fLowestValue)
return kRefs[refIndex] as Actor
return kRefs[refIndex] as Actor
EndFunction
EndFunction
</source>
</source>
This will return the closest actor. How fast this function returns, depends on how many actors are in the cell. --[[User:Rasikko|Rasikko]] ([[User talk:Rasikko|talk]]) 2017-12-15T14:47:39 (EST)
How fast this function returns, depends on how many actors are in the cell. --[[User:Rasikko|Rasikko]] ([[User talk:Rasikko|talk]]) 2018-01-02T02:58:34 (EST)

Latest revision as of 02:58, 2 January 2018

SKSE alternative[edit source]

You basically have to make your own version of this function with SKSE, if you want to avoid certain references, but especially the player because it's so easy for it to be the return value.

Actor Function GetClosestActorFromRef(ObjectReference akCenter) Global
	;/ Returns the closest actor to akCenter. akCenter is excluded from the search.
          *1. Check if there is more than 128 actors or only akCenter.
          *2. Iterate through all actors found and record their distances to the player.
          *3. Find the smallest distance from the player and return the actor.
          *4. Valid types for actors: 43 or 62
        /;
		
	ObjectReference[] kRefs = new ObjectReference[128]
	Float[] fDistances = new Float[128]
	Cell kCell = akCenter.GetParentCell()
	Int CellRefs = kCell.GetNumRefs(43) 
	Float fLowestValue = 1000000.0
	Int i
		
	if (CellRefs >= 129 || CellRefs == 1)
		return none
	endif
		
	while i < CellRefs
		ObjectReference kActors = kCell.GetNthRef(i, 43)
		if kActors != akCenter
			kRefs[i] = kActors
			fDistances[i] = kActors.GetDistance(akCenter)
			
			Float fCurrentValue = fDistances[i]
		        if fCurrentValue <= fLowestValue
				fLowestValue = fCurrentValue
			endif
		endif
		i += 1
	endWhile
		
	Int refIndex = fDistances.Find(fLowestValue)
		
	return kRefs[refIndex] as Actor
EndFunction

How fast this function returns, depends on how many actors are in the cell. --Rasikko (talk) 2018-01-02T02:58:34 (EST)