Point System

[Kaen]

I want to implement a point system on my game, but I'm facing a problem.

I'm storing the points on a persistent object, so even when the game is closed the points will remain saved:

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    $ persistent.coin_bronze = 1
    $ persistent.coin_silver = 2
    $ persistent.coin_gold = 3

The problem is, even if I don't save the game before closing, the points are still saved. So if I save before gaining points, I could easily farm points by loading after gaining points:

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    #saved the game here
    "now let's get some points!"
    $ persistent.coin_bronze += 1
    #load game

How can I prevent this?

[xela]

Don't save your points as a part of persistent? Otherwise you could implement the counter as a class and control the input.

[Kaen]

I tried not using it as a persistent data but if I use those variables on other screens like the gallery screen it give me an error.

I don't know if I'm doing something wrong but normal variables I declare and use on the main script (after the start label) seems to not exist on the gallery screen (it's on the main menu, so I don't need to go to the main script to load this screen).

[xela]

Ah, I see, you should have lead with that

You need to create a class or a function that would govern adding data to persistent or any other form of persistent data. Like if you save a dict:

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    $ persistent.coins_bronze = dict() # (Somewhere in the beginning of the game)
    #saved the game here
    "now let's get some points!"
    $ persistent.coins_bronze["location_1"] = 1
    #load game

Then in the main menu you can do something like $ bronze = sum(persistent.coins_bronze.values()) to get the total. You can do a lot of cool stuff with classes/function here to simplify this but it will only make sense if player can gather a few dozens of points at least.

[LVUER]

It's right that you're using a persistent variable for things like that. The problem is that when you get the points but haven't saved, you can just load the game to farm points, right? Even worse, if you don't disable rollback feature, player can just rollback and forth.

So the solution is more to the game design, like you can set a persistent variable to check whether a player already get the points for certain actions. If it's true, then that player will not get those points for doing the same actions... BTW, how player can get points? What action caused it and can it be repeated in same game?

[Kaen]

It's right that you're using a persistent variable for things like that. The problem is that when you get the points but haven't saved, you can just load the game to farm points, right? Even worse, if you don't disable rollback feature, player can just rollback and forth.

Exactly, but I got the rollback covered haha!

So the solution is more to the game design, like you can set a persistent variable to check whether a player already get the points for certain actions. If it's true, then that player will not get those points for doing the same actions...

OMG that's a really simple solution, I love it! I'm gonna try this... I'm pretty sure it'll work fine with my game!

BTW, how player can get points? What action caused it and can it be repeated in same game?

Mostly by making right choices. There is a minigame the player may be able to play more than once through the story, so I'll have to add better control over it...

You need to create a class or a function that would govern adding data to persistent or any other form of persistent data. Like if you save a dict:

Thank you xela, though I still don't understand all of it >_<

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    $ persistent.coins_bronze = dict() #what dict() means/does?
    $ persistent.coins_bronze["location_1"] = 1 #I didn't follow the logic here sorry T-T

[xela]

Dictionary, it's a key/value type of container. Whatever you're trying to do, it's doable. If you cannot figure it out, provide some more details.