Change Sprite Renderer Color for last collider

Unity Engine
1

I have three objects from one prefab with trigger box collider. When Player collide with one of them, it change color. My script below:

void OnTriggerEnter2d(Collider2d collision)
{
if (collision.gameObject.name == “Player”)
{ getComponent().color = new Color (x,y,z); }
}

And I want to do this - all three objects have color Y. When Player collide with one of objects, it change color to X and the rest of objects change color to standard Y. When Player collide with another, it change color to X and previous object with X color change it to standard color Y.

How can I do that?

2

seems like a good situation for a static variable.
Inside your script that you posted, make a static variable for “CurrentlyChanged” (doesn’t matter what you name it)
Then, when you activate this trigger, do something like this:

// near the top, where you declare your variables
static GameObject CurrentlyChanged;

// after check for player, in the trigger method...
if(CurrentlyChanged != null && CurrentlyChanged != gameObject) CurrentlyChanged.GetComponent<SpriteRenderer>().color = new Color(standard colour Y);
CurrentlyChanged = gameObject;
// rest of code to change this object's colour to standard X
3

I’m completely noob, can U modify my code? When I wrote it like below it doesn’t work:

void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.gameObject.tag == "Player")
        {
            if (CurrentlyChange != null && CurrentlyChange != gameObject)
            {
                CurrentlyChange.GetComponent<SpriteRenderer>().color = new Color(1f, 1f, 1f);
                CurrentlyChange = gameObject;
            }
            respawnerPointsManager.UpdateStartPoint(this.gameObject.transform);
            GetComponent<SpriteRenderer>().color = new Color(0.3f, 0.6f, 0.6f);
        }

    }

    void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.gameObject.tag == "Player")
        {
            respawnerPointsManager.UpdateStartPoint(this.gameObject.transform);
            GetComponent<SpriteRenderer>().color = new Color(0.3f, 0.6f, 0.6f);
        }
        if (CurrentlyChange != null && CurrentlyChange != gameObject)
        {
            CurrentlyChange.GetComponent<SpriteRenderer>().color = new Color(1f, 1f, 1f);
            CurrentlyChange = gameObject;
        }
4

the part where it says If(CurrentlyChange != null etc…
put the : CurrentlyChange = gameObject after you close the braces { } not inside.
Try again and write back if it works/doesn’t