How to check if there are game objects with the same tag on screen?

Questions & Answers
1

I am trying to check if there are no more ‘gems’ left on the scene and if it’s true, opening the exit portal.
I tried doing this by using: if (GameObject.FindGameObjectsWithTag(“Gem”).Length == 0). I have no errors, but when the player picks up all the gems and goes to the portal, nothing happens.
I also tried using if (GameObject.FindGameObjectsWithTag(“Gem”).Length != 0) with an else statement, but this didn’t work as well. I have no idea what could be causing this issue.

Thanks.

2

you should debug it like

Debug.Log(GameObject.FindGameObjectsWithTag(“Gem”).Length);

Then you will know if you are collecting all the gems or if there is a problem with your portal.

Also a better way to do it maybe to keep track of the objects yourself with a counter. Their are a few ways to do this… it depends on the gameObjects, if you just want ot go by tags you can make an int numberOfGems = GameObject.FindGameObjectsWithTag(“Gem”).Length;

Or if all your gems have the same script on them you can use a static int for them to keep track of themselves.

class Gem : MonoBeahviour
{
static in numberOfGems;
OnEnable(){
numberOfGems++;
}
OnDisable(){
numberOfGems--;
}
}

Then you can access that variable anywhere with Gems.numberOfGems, and go if(Gem.numberOfGems==0)
etc…

3

if you are using visual studio use brack point to check what’s wrong

4

Thank you for answering. I ended up using a “count” variable and and putting the component on another object instead of the gem. In short, it works.