How do I start a function after a function from another script activates?

Unity Engine
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1

HI! I’m running 3 scripts, one is on the player object, another on a “controller” empty object I have for various tasks, and another in my canvas, but I’ll talk about that one in a moment. In this case, I want to make a “game over” function where I set the timescale to 0.

This is on the player character:

    public class PlayerScript : MonoBehaviour
    {
    public float rotationSpeed;
    private GameObject playerPivot;
    public GameObject target;
    public CanvasScript canvas;
    public bool isCollidingWithTarget = false;
    public KeyCode Spacebar = KeyCode.Space;
    public bool isSpacebarPressed = false;

    {
        playerPivot = GameObject.Find("Player Pivot");
        target = GameObject.Find("Target");
    }

    void Update()
    {
    playerPivot.transform.Rotate(0, 0, rotationSpeed*Time.deltaTime);

    if (Input.GetKeyDown(Spacebar))
    {
        rotationSpeed *=- 1;
        isSpacebarPressed = true;

        if (isCollidingWithTarget==true)
        {
            target.GetComponent<TargetScript>().ChangePosition();
            canvas.AddScore();
        }
    }
    else
    {
        isSpacebarPressed = false;
    }


    private void OnTriggerEnter2D(Collider2D collision)
    {
    if (collision.gameObject == target)
    {
        isCollidingWithTarget = true;
        Debug.Log("enters");
    }
    }
    private void OnTriggerExit2D(Collider2D collision)
    {
    if (collision.gameObject == target)
    {
        isCollidingWithTarget = false;
        Debug.Log("exits");
    }
    }
    }

Basically my player object is a rectangle that spins on a pivot (a parent that is an empty game object on 0x,0y) and changes position when I press the spacebar, a target appears somewhere random in the circumference and you have to tap the key when the player reaches it, it checks if the rectangle has entered the trigger , which sets a bool called “isCollidingWithTarget” to “true” and when it exits the the same trigger it sets it to “false” and so on.

I’m trying to make a failstate when you miss the target, but Here’s the problem…

I want to make a function in my “controller” script, something like

    void GameOver()
    {
    Time.timeScale = 0f;
    }

And I want to call it in my third script that I have in my Canvas called “CanvasScript” right here:

    if (player.GetComponent<PlayerScript>().isCollidingWithTarget==false && player.GetComponent<PlayerScript>().isSpacebarPressed==true)
    {
    GameOverText();
    }

I already have a GameOver() function in my CanvasScript, but it’s for the game over text that appears when you miss the target (it does that by turning on a TextMeshProUGUI on that already has “Game Over” written on it).

It looks like this:

    public void GameOverText()
    {
     gameOverScreen.SetActive(true);
    }

Is there a way to do that?
I know I could just put it on my CanvasScript but I’d like to keep things organized and not to have a very important function on my UI script.

Btw, sorry if this post is super long, it’s my first one.

2

You’re looking for coroutines.
Unity - Manual: Coroutines (unity3d.com)

3

Organization is hard. Principles like DRY (Don’t Repeat Yourself) and Separation Of Concerns all come into play.

It’s always better to do something, do anything, put a stake in the ground and get it working, then live with it for a bit… keep it if it works, refactor it if it doesn’t.

Here’s some more Unity-specific notes on this:

Referencing GameObjects, Scripts, variables, fields, methods (anything non-static) in other script instances or GameObjects:

It isn’t always the best idea for everything to access everything else all over the place. For instance, it is BAD for the player to reach into an enemy and reduce his health.

Instead there should be a function you call on the enemy to reduce his health. All the same rules apply for the above steps: the function must be public AND you need a reference to the class instance.

That way the enemy (and only the enemy) has code to reduce his health and simultaneously do anything else, such as kill him or make him reel from the impact, and all that code is centralized in one place.