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Issue Data
Status: Closed
Issue Type: Bug Report
Project: Unofficial Fallout 4 Patch
Component: Fallout 4: Automatron DLC
Category: Papyrus
Assigned To: Sclerocephalus
Platform: All
Severity: Low
Votes: 0
Watching: N/A
Opened By BlackPete on Jun 12, 2018 6:17 pm
Last Edited By Sclerocephalus on Sep 7, 2018 4:44 pm
Closed By Sclerocephalus on Sep 9, 2018 1:47 pm
Resolution: Fixed
Comment: Fixed for UFO4P 2.0.5

Issue #24676: DLC01_TrackSystemTrapElectricArc: Array index 0 / 1 is out of range (0-0)

[06/11/2018 - 07:08:13PM] error: Array index 0 is out of range (0-0)
[ (FF01FFC7)].DLC01:DLC01_TrackSystemTrapElectricArc.OnTimer() - "g:\_F4\DLC01\Art\Raw\Scripts\DLC01\DLC01_TrackSystemTrapElectricArc.psc" Line 77
[06/11/2018 - 07:08:15PM] error: Array index 1 is out of range (0-0)
[ (FF01FFC7)].DLC01:DLC01_TrackSystemTrapElectricArc.OnTimer() - "g:\_F4\DLC01\Art\Raw\Scripts\DLC01\DLC01_TrackSystemTrapElectricArc.psc" Line 77



1 comment(s) [Closed]
Sclerocephalus said:
There's nothing wrong with the script:

int actorCount = actorsInTrigger.Length - 1
if (actorCount >= 0)
     ;If we have targets in the trigger, fire at one of them.
     ObjectReference target = actorsInTrigger[Utility.RandomInt(0, actorCount)]
     DLC01TrackSystem_TrapElectricArcSpell.Cast(myArm, target)

While this runs, however, the script is also processing OnTriggerEnter and OnTriggerLEave events, and it appears that actors were removed from the array while this code was trying to pick a random actor. Note that running this code does not take much time, so this is a pretty rare error as it can only occur when the OnTriggerLeave event removes an actor from the array just within this narrow time frame.

Fixed this by adding a tracking bool that is set to true while the timer event is picking an actor, and a waiting loop to the OnTriggerLeaveEvent that prevents it from removing any actors from the array while the tracking bool is true.

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