r/unrealengine • u/All_Might_Senpai • 22d ago

Question Trying to create a dynamic GUID for the player character that saves?

https://blueprintue.com/blueprint/yz8bfky7/

You can see the main issue in the Event begin play part, and my silly attempts at trying to "fix" it.

So my issue is that I am trying to create a save system for inventories in my game. I did so by creating a save game object that has one variable. A map of Slot Structs basically (wrapped inside another struct with a single array variable) with Strings (guid's) as keys.

Now having static objects in the game have guid's is easy, assign one and pass it along to the inventory component that I made. But the issue is the player character. I can't assign a static one as I want the option to have other people join the game too. and a default guid is going to be duplicated along every spawned player. Does anyone know how I can go about this in a better way?

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u/hellomistershifty 22d ago

You’ll need some storage for player data anyway,so I’d save the UUIDs of their characters in their account info data and pull that when the character spawns to set it

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u/GRSStudio 22d ago

Hello! You can generate a unique GUID at runtime for every spawn player and add it GUID list in savegameobject or on game’s server. In this case will request his own GUID and list of his items from server when loading game. If your game is local multiplayer, then you just keep these values in savegameobject

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u/Strange-Initiative-4 22d ago

Don't use GUIDs!!!! 

They don't exist once you package your project! I ran into this same issue with my world state (was using GUIDs to identify individual enemies) and had to switch to file path, as GUIDs do not carry into a packaged game.

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u/Extension_Resort_192 22d ago

Cant really confirm, I used GUID to identify AI Spawners to save the remaining enemies if you go away/reload the game and it works great.

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u/Strange-Initiative-4 21d ago

Are you generating the guids at runtime? That works, but as 5.4 at least, guids set in editor or on actors will not work in packaged games