How to Set PlayerPrefs.SetInt?

Question

playerpreferance.setint problem

I am develop one game.In this game 15 levels. I am face this type of issues when send one level score into second levels. I am used player preferences in start() method. Get after Increase the score 20% levels. Player will be given score when the levels finished success.

how to score get used preferences in next level??

Math: Level 1 would be 20 + 0 Level 2 is 20 + (20), Level 3 is 20 + (40), Level 4 is 20 + (60), Etc. ex:

Scene1-> Level1(finishlevel) -> Getclaim button press currentreward=20;

Scene2->Level2(finishlevel)-> Getclaim button press currentreward=40;

Code:

GameManager.cs

    int pointAdd;
    public int levelID;   //ex: Leve1 levelId=0 ,Level2 Leveld=1
    public Text creditsText;

    void FixUpdate()
    {
       creditsText.text="" + PlayerPrefs.GetInt("", 0).ToString();
    }

    public void GetClaim()
    {
        pointAdd = PlayerPrefs.GetInt("",0);
        pointAdd = 20 + (levelID * 20); //FIRST SCENE LEVEID=0 //SecondScene LevelId =1 ////problem here when i m quit a game not increment 20,game store only 20
        PlayerPrefs.SetInt("", pointAdd);    
        creditsText.text = ("" + pointAdd);
        btnreward.SetActive(false);   //one time claim then deactive button
    }

what i m doing: playing a game when i m play level1=20,level2=40 preferance store.that run successful but when i m quit a game and again play a game(means level1)current credittextis=40 but not add a 20 means my credittext is=60,but game can store here Credittext=20??

Answer 1

PlayerPrefs.SetInt(name_key, value); saves your value with the name key specified in a string.

value = PlayerPrefs.GetInt(name_key); gets the value which was previously saved with SetInt function, and sets it back to value.

So when you want to save your score you have to do this:

PlayerPrefs.SetInt("score", pointAdd);

But then for loading it into the second level, you have to do this:

pointAdd = PlayerPrefs.GetInt("score");

And finally, if you want to check if there is a score saved in your PlayerPrefs, you have to do this:

PlayerPrefs.HasKey("Score");

Which returns a boolean.

For more information:

list of PlayerPrefs functions: https://docs.unity3d.com/ScriptReference/PlayerPrefs.html

Set Int : https://docs.unity3d.com/ScriptReference/PlayerPrefs.SetInt.html

Get Int : https://docs.unity3d.com/ScriptReference/PlayerPrefs.GetInt.html

Has Key: https://docs.unity3d.com/ScriptReference/PlayerPrefs.HasKey.html

Edit

I didn't quite catch what you were trying to achieve, but you can have these functions to help you:

void SaveScore(int score){
    PlayerPrefs.SetInt("score", score);
}
int LoadScore(int defaultValue = 20){
    return PlayerPrefs.GetInt("score", defaultValue);
}

The LoadScore function is equivalent to this:

int LoadScore(int defaultValue = 20){
    if(PlayerPrefs.HasKey("score"))
        return PlayerPrefs.GetInt("score");
    return defaultValue;
}