Using Player Prefs on Unity outside play mode

Often I like to use Player Prefs to store user data, because is really easy to use. But what happens when we want to delete it?. I used to put this line of code:

PlayerPrefs.DeleteAll();

Complite, execute, erase line of code, compile and execute again.

Now I know better!, so we are going to setup a Menu Item to execute this at any time.

Lets create a new C# script, name it  DeletePlayerPrefsData  and add the following code:

using UnityEngine;

using UnityEditor;

public class DeletePlayerPrefsData {

[MenuItem("Assets/Delete Player Prefs")]

public static void DeletePlayerPrefs() {

PlayerPrefs.DeleteAll();

}

}

Here we put the location of the script function on the menu.

[MenuItem("Assets/Delete Player Prefs")]

Lastly we declare a static function just below  [MenuItem]  which would be the function that will execute when  Delete Player Prefs  is clicked.

Define code regions for specific platforms

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Let's say we want to execute especific code for a certain platform, usually this problem arises when we are targeting multiple platforms and some features/characteristics are different.

Often we want to do this with the input between PC and Mobile, so if we have this on PC.

void Update () {

    if (Input.GetKey(KeyCode.D)) { //Move right

        rigidbody2D.velocity = new Vector2(speed, 0.0f);

    }

    else if (Input.GetKey(KeyCode.A)) { //Move left

        rigidbody2D.velocity = new Vector2(-speed, 0.0f);

    }

    else { //Does not move

        rigidbody2D.velocity = new Vector2(0.0f, 0.0f);

    }

}

On mobile this won't work.

We could add the mobile input code next to it but everything will be executed, so here's where we use Platform #define directives.

    void Update () {

#if UNITY_STANDALONE || UNITY_WEBGL || UNITY_EDITOR //PC Input

        if (Input.GetKey(KeyCode.D)) { //Move right

            rigidbody2D.velocity = new Vector2(speed, 0.0f);

        }

        else if (Input.GetKey(KeyCode.A)) { //Move left

            rigidbody2D.velocity = new Vector2(-speed, 0.0f);

        }

        else { //Does not move

            rigidbody2D.velocity = new Vector2(0.0f, 0.0f);

        }

#elif UNITY_ANDROID || UNITY_IOS //Mobile Input

        if (Input.GetTouch(0).position.x > Screen.width / 2.0f) { //Move right

            rigidbody2D.velocity = new Vector2(speed, 0.0f);

        }

        else if (Input.GetTouch(0).position.x < Screen.width / 2.0f) { //Move left

            rigidbody2D.velocity = new Vector2(-speed, 0.0f);

        }

        else { //Does not move

            rigidbody2D.velocity = new Vector2(0.0f, 0.0f);

        }

#endif

    }

In this we define certain code regions that will only be compiled if the current selected platform matches the property inside the  #if / #elif  statements.

For more info on which property to use check the table.