Does the constructor script of placed actors execute in game?

Development Programming & Scripting Blueprint
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For the actors you put in the level in the editor, does the constructor script executes when the level is loaded in the packaged game? I suppose it shouldn’t run but I want to be sure.

I’ve put a printstring in the construction script, it prints when I load the level in the editor but also when i play “Standalon Game” from the editor.

What happens in the packaged game? (printstring don’t work obviously so I don’t know is it executed or not)

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No, they don’t. The construction (not constructor, that’s a different thing) script is editor-only. With ordinary Blueprints (no custom C++ base class), the first thing that gets executed is BeginPlay().

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pretty sure the blueprint construction script gets executed in game

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Just to clarify, I’m asking about blueprints added to the level in the editor, like props, architecture etc. not those spawned in game.

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edit: this post is nonsense, ignore it [HR][/HR]I was confused about this for a long time.

The Construction Script for objects placed manually in the level does get executed; you will not see a Print String fire, though.

Put an object in the level, set a variable in its construction script and read it OnBeginPlay. It will be set.

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It’s not a proof. Maybe the value of the variable was serialized and saved with the level?

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Sorry, It’s a pretty big thread, where is the answer in there?

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Hm, you’re right. I just made the var into a random value and it does not change, indeed.

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Objects pre-placed in a level have their construction scripts ran at cook/“package” time. They are solidified in the level during that process.

Dynamically spawned objects however will run their constructions scripts as they’re created. Events like BeginPlay, where some setup/initialization script can be placed will also be executed at runtime

Taken from: Running BP construction scripts at Package Time - World Creation - Unreal Engine Forums

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Thank you!

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Interesting. I stand corrected. Maybe that’s something that changed, because I’m reasonably certain that when I started learning UE4 (which was some time ago), they really hammered the point that construction scripts don’t get executed in.

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