Unity 2D While Loop Keeps Crashing Unity. How to fix?

Unity Engine
1

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2

I am trying to make a system where the player’s speed gradually increases. I found a way to do this using the fixed update function, however that updates too fast. If there is another way to do this that a beginning developer might understand, then please show me. Thanks for you help!

3

That while loop is simply going to repeat over and over within a single frame, thus never getting to the rest of the code and thus never getting to the next frame. It is very important that when using a while loop that something WITHIN the loop will cause the condition to be false and thus exit the loop.

Try this:

    [SerializeField]
    private float speedIncreasePerSecond;

    private float speed;
    private bool moving;


    void Update()
    {

        if(moving)
                    speed += speedIncreasePerSecond * Time.deltaTime;
    }
1 Like
4

As stated above, you’ve created what is known as an infinite loop and because all these scripts run on the main-thread only, it will lock the engine up (not “crash” it).

Also, a minor thing, but there’s no such thing as Unity 2D. :slight_smile:

5 
private void Start()
{
constMove = true;
}

private void Update()
{
if(constMove == true)
{
// if you want it to run a check non-stop
Move();
}
// Pretend the above if statement doesn't exist
if(constMove == true)
{
constMove = false;
// Now your code will only run once.
// At the end of your Move function, you would make
// constMove true again if you wanted it to be able to run again
Move();
}
}