How to use PlayerPrefs?

Questions & Answers
1

Hi guys.

How can i use PlayerPrefs to save my game? Is there any tutorial available out there (JavaScript) ? If not, can someone give me an example on how to use it?

Here is a piece of my code:

Unlocking level code:

static var level2unlock : boolean;
var level2 : UIButton;
function Update () {
if(!level2unlock)
{
level2.controlIsEnabled = false;
}
else
{
level2.controlIsEnabled = true;
}
}

Code used in level 1. If a condition is met, unlock level 2.

if (transform.position.y > 47)
{
levelunlock.level2unlock = true;
}

I know that i must use PlayerPrefsX to save this kind of information, but i haven't used PlayerPrefs before so i still have no idea. Anyone can help me?

Thanks

2

Since a boolean value is just 0 or 1, then you can use:

SetInt Sets the value of the preference identified by key.

GetInt Returns the value corresponding
to key in the preference file if it
exists.

So when you do:

static var level2unlock : int = PlayerPrefs.GetInt("Level2Unlock", 0);

then in your function you do

if(level2unlock == 1)
{
  level2.controlIsEnabled = true;
}
else
{
  level2.controlIsEnabled = false;
}
PlayerPrefs.SetInt("Level2Unlock", (level2.controlIsEnabled ? 1 : 0));

PS: Code needs to be adapted, since I normally program in c# and this was done in the answer box here :)

3

You could write a script that say “when get button reset PlayerPrefs” for instance.

if(Input.GetKey(KeyCode.B))
    {
    PlayerPrefs.SetInt("Level2Unlock", 0);
    }

this will reset you playerprefs I think.
You will have to remove this code when you finnish your game though.