Question by Katnip · Aug 25, 2020 at 01:38 AM · 2d game 2d-physics 2d sprites

Competing box colliders?

I'm trying to make a hidden object game.

I have a background image on my 'object' layer at 0, then on top of it, I have a bunch of 'hidden' objects on the same layer at layer order 1 or 2.

Each object including the background has a BoxCollider2D with isTrigger set on it, as well as a script. When someone clicks on an object that's on a list of objects to find, they get a score +10. But I want it to be when they click on the screen without clicking on an object they get -10.

Unfortunately, 50% of the time, the background gets triggered while the object on top does not. When I restart the level, none of the hidden objects gets triggered, only the background object (it's really weird). I can't understand why.

Here's the HiddenObject script on every 'hidden object' including the background image:

     void OnMouseDown()
     {
         Debug.Log(objectName);
 
         // background image that covers the whole screen but is at position 0
         if (objectName == "background")
         {
             int score = PlayerPrefs.GetInt("currentScore");
             int newScore = score - 10;
             PlayerPrefs.SetInt("currentScore", newScore);
             scoreTxt.text = newScore.ToString();
         } 
 
         // these game objects are at position 1 or more on the layer
         foreach (GameObject b in buttons)
         {
             // only a selection of all possible hidden objects are on the list of objects to be 'found'
             if (b.GetComponentInChildren<Text>().text == objectName)
             {
                 gameObject.SetActive(false);
                 b.SetActive(false);
 
                 int score = PlayerPrefs.GetInt("currentScore");
                 int newScore = score + 10;
                 PlayerPrefs.SetInt("currentScore", newScore);
                 scoreTxt.text = newScore.ToString();
 
                 break;
             }
         }
     }

So I'm not sure why this approach isn't working properly. If anyone has any ideas I'd really appreciate hearing them. Thanks.

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