Hello. I want to create a trade system for my game, but nothing I can think of stops potential item duplication. Let’s say I have an autosave system that fires every 10 seconds, as well as saving upon leaving, if the data is modified in any way. Here’s a scenario:
Player 1 has item A, Player 2 has item B. B is higher value than A.
The autosave happens.
Players 1 & 2 complete a trade where they swap items.
Player 2 leaves, but because they’ve done this less than 6 seconds after the autosave, the save is queued.
Player 2 joins a new server, which loads the data before the trade.
Both Player 1 and Player 2 have item B now. If Player 2 does something like earn coins or trade another item to trigger a save, the data will reflect this.
This seems like a reasonable trick to pull off so long as Player 2 has decent Wi-Fi. Is there any way I can write an auto-save that prevents this type of exploit/duplication? A very simple solution on Roblox’s end would either be to bump the UpdateAsync limit to 2 times per second, or get rid of it entirely, but I’m sure there’s a way I can do this now.
I suppose you could sync the loading of the datastore with the system write time, then when the player is just casually loading in, seems not even noticeable that it’s been 6 seconds, and boom no duping. Sorry for just the idea, I haven’t really messed with datastores quite yet and I am looking at this from no-limits perspective, I have no idea if this is possible.
@DavidThatOrdinaryGuy That could work, but I feel like itwould be upsetting to have a 6 second fake loading screen before you can play the game. If this is the best solution I’ll go for it, but it’s not ideal.
@Sniperkaos Only saving upon leaving the game, without some sort of auto save feature, is generally frowned upon, as it can cause bigger problems if it fails.
