Hello UE Forums, I have 2 blueprints I am working with. The first blueprint is some breakable glass, when the glass is broken it will add itself to an array in the second blueprint. The second blueprint contains the array and an integer for counting how many times an actor is added to the array. …

[image] Z3R0K0: destroy the 1st actor in the array, remove it from the array and then cycle to the next one. Just keep track of the last index added to Destroy and overwrite: [image]

It’s been a minute, but I could have swore Arrays auto shifted indexes in UE. For example if you remove an index (say 2) the array would shift all the elements down the line, thus refilling index 2. Index 3 → 2 Index 4 → 3 Index 5 → 4 etc. If that’s not the case a Shift function is pretty easy t…

Just confirmed Arrays do shift. example Int array index[0] → 34 index[1] → 21 index[2] → 56 index[3] → 73 index[4] → 5 Remove Index[0], Array is then shifted to: index[0] → 21 index[1] → 56 index[2] → 73 index[3] → 5 Remove Index[2], Array is then shifted to: index[0] → 21 index[1] → 73 i…

The idea behind what I posted was to avoid shifting and resizing the array twice every time a new glass is broken. :face_with_diagonal_mouth:

I gotcha, it was solid. Just providing a different perspective. End of day the engine shifts them on removal.

[image] Rev0verDrive: End of day the engine shifts them on removal. The index is not removed when the referenced actor is destroyed. Right?

No I’m saying when you “REMOVE INDEX” from the array. Which is what should be done when the actor referenced is destroyed. Remove Index Remove Index

[44571f91a31d4c2fbef9a39cd1bd99976a739805_2_1098x1000] 1.) Is this an object refence to my BP that I am adding to the array? 2.) How do I create this node?

[Destroyindex0] [glasscounter] This works, sort of. It seems to be destroying the last actors added to the array instead of the first. It will keep destroying the most recently added but leaves the first 5 on scene.

Yes. Right click and type Math Expression node.

Works perfectly, just had to enter the expression on the details panel and change the Inputs / Outputs to integer. This is going to have a lot of uses in my project, Thank you.

Add actors to array, then at array limit, destroy first actor.

Development Programming & Scripting Blueprint

pezzott1 (pezzott1) May 8, 2024, 9:47pm 2

Just keep track of the last index added to Destroy and overwrite: