Hello! I am currently making a 3D platformer and have a collectable coin that the players can get. However I want these coins to stay destroyed when switching levels in case the players return to an old stage. I am using Game Instance and Save Game which works when the coins are on one stage only. However once I pick them up on another level it seems to stop working properly and the old coins reload. The coin count data is working fine only the actors not staying destroyed on old levels. If I stay on the current level it continues to work. Any ideas? Thank you!
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I think it’s probably because you’re saving actor references, which on the whole, doesn’t work, as they are different next time you run the level.
The easiest way to do this, is to make each coin a BP, which has an ID ( integer ). When the coin is collected, it writes its ID to the save game. Next time you run the level, each coin takes a look at the save game, if its ID is in there, it just destroys itself.
Notice, you need a different int array for each level, of course.
Another way, is to have a map data structure: ‘level name’ + coin ID → bool. That way, you only have one data structure for all levels. Again, each coin checks the save game itself and destroys itself if need be.
Coin struct
Save game
Coin
( I hid accessing the save game in a function to keep things clear )
If you are meaning like a coin counter variable, anything you want to clear between levels in the game mode and that which you want to go on in the game instance.